对于希望从任何以前的版本迁移数据的人来说，需要使用pg_dumpall进行转储/恢复，或者使用pg_upgrade或逻辑复制。有关迁移到新主要版本的通用信息，请参阅第 18.6 节。
\n版本 17 包含许多可能影响与以前版本兼容性的更改。请注意以下不兼容项：
\n对于运行 17.X 的用户，无需执行转储/恢复。
\n但是，下面前三个安全条目描述了更新后可能需要进行的配置调整和数据清理。
\n此外，如果使用 contrib/btree_gist 或 contrib/ltree，可能需要为这些扩展创建的索引重建索引；请参见下面的相关条目。
此外，如果是从早于 17.6 的版本升级，请参见第 E.6 节。
", "compatibility_count": 0, "label": "17.11", "status_label": "受支持版本", "eol": "2029-11-08", "age_days": 48, "support_days": 1135}, "groups": [{"date": "2026-08-13", "build": "17.11", "major": "17", "minor": 11, "manual": "17", "status": "stable", "doc_git": "", "version": "17.11", "eol_date": "2029-11-08", "date_text": "2026-08-13", "supported": true, "manual_url": "/docs/17/release-17-11.html", "source_url": "/docs/release/17.11/", "entry_count": 109, "placeholder": false, "content_hash": "e2c91d61e036874b6e8f8d413d78c1712888ed2069141c9010dd5d344d925bce", "manual_build": "17.11", "source_as_of": "", "changes_count": 109, "doc_loaded_at": "2026-09-26T02:56:35.922301", "migration_html": "对于运行 17.X 的用户，无需执行转储/恢复。
\n但是，下面前三个安全条目描述了更新后可能需要进行的配置调整和数据清理。
\n此外，如果使用 contrib/btree_gist 或 contrib/ltree，可能需要为这些扩展创建的索引重建索引；请参见下面的相关条目。
此外，如果是从早于 17.6 的版本升级，请参见第 E.6 节。
", "compatibility_count": 0, "label": "17.11", "status_label": "受支持版本", "eol": "2029-11-08", "age_days": 48, "support_days": 1135, "entries": [{"id": "17.11-ccab0c809e14d029", "cves": ["CVE-2026-6471"], "html": "将逻辑解码输出插件限制为新服务器参数 output_plugin_libraries 指定的集合（Jacob Champion）§ §
此前，复制用户可以为逻辑解码选择任意可加载库，从而实施各种攻击。为了在不破坏原有可用配置的情况下收紧这一限制，现引入一份允许使用的输出插件列表。
\n默认情况下，只有随 PostgreSQL 提供的输出插件（pgoutput 和 test_decoding）会包含在 output_plugin_libraries 中。使用其他输出插件的安装必须在更新服务器后将其加入该参数，例如：
output_plugin_libraries = 'pgoutput, test_decoding, my_trusted_decoder'\n\n
此外，从版本 17 或更高版本迁移时，如果 pg_upgrade --check 发现新集簇的 output_plugin_libraries 参数不允许旧集簇逻辑复制槽所使用的插件，检查将会失败。请在执行 pg_upgrade 前对新集簇的设置作必要补充。
PostgreSQL 项目感谢 Vladimir Tokarev 和 Yu Kunpeng 报告此问题。（CVE-2026-6471）
", "text": "将逻辑解码输出插件限制为新服务器参数 output_plugin_libraries 指定的集合（Jacob Champion）§ § 此前，复制用户可以为逻辑解码选择任意可加载库，从而实施各种攻击。为了在不破坏原有可用配置的情况下收紧这一限制，现引入一份允许使用的输出插件列表。 默认情况下，只有随 PostgreSQL 提供的输出插件（pgoutput 和 test_decoding）会包含在 output_plugin_libraries 中。使用其他输出插件的安装必须在更新服务器后将其加入该参数，例如： output_plugin_libraries = 'pgoutput, test_decoding, my_trusted_decoder' 此外，从版本 17 或更高版本迁移时，如果 pg_upgrade --check 发现新集簇的 output_plugin_libraries 参数不允许旧集簇逻辑复制槽所使用的插件，检查将会失败。请在执行 pg_upgrade 前对新集簇的设置作必要补充。 PostgreSQL 项目感谢 Vladimir Tokarev 和 Yu Kunpeng 报告此问题。（CVE-2026-6471）", "title": "将逻辑解码输出插件限制为新服务器参数 output_plugin_libraries 指定的集合", "commits": ["01992176e", "4fcccea97"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "e647da816fe9b0fcbfcecd952c47187db1a2be508ae8f7d1877872c29d0f7de6", "section_path": ["变更"], "commit_groups": [["01992176e", "226e49cbe", "2a29b607d", "4e1252ee5", "5d47df21e", "99f205407", "bf3842a64"], ["20e9dcefd", "4fcccea97", "7082ce248", "82fd68801"]], "identity_text": "Restrict logical decoding output plugins to the set specified by a new server parameter output_plugin_libraries (Jacob Champion) Previously, a replication user could select any loadable library for logical decoding, allowing exploits of various sorts. To allow locking this down without breaking setups that worked before, introduce a whitelist of allowed output plugins. By default, only the output plugins shipped as part of PostgreSQL (pgoutput and test_decoding) are included in output_plugin_libraries. Installations that rely on other output plugins must add them after updating the server, for example output_plugin_libraries = 'pgoutput, test_decoding, my_trusted_decoder' Additionally, pg_upgrade --check will fail if the output_plugin_libraries parameter on the new cluster does not permit the plugins of logical replication slots on the old cluster, when migrating from versions 17 and later. Make necessary additions to the new cluster's setting before performing pg_upgrade. The PostgreSQL Project thanks Vladimir Tokarev and Yu Kunpeng for reporting this problem. (CVE-2026-6471)", "commit_aliases": ["01992176e", "20e9dcefd", "226e49cbe", "2a29b607d", "4e1252ee5", "4fcccea97", "5d47df21e", "7082ce248", "82fd68801", "99f205407", "bf3842a64"], "source_commits": ["01992176e", "4fcccea97"], "source_entry_id": "17.11/changes/001", "db_id": "549fb97375289bbc21d70209d1e5e9a8", "patch_ids": ["29a8e1db1536ed40c71312e7d2015c9e", "bcbaedd0455bfc84b87ba56b7f4aba2c"], "statement_hash": "66cffd63e622afc809ffcea154c77acb7025871176da7689b08b6db15ff40212", "relations": [{"rule": 2, "type": "equivalent", "target": "2ed41f6adf451dd977da156f72190023", "evidence": {"same_day": true, "patch_ids": ["29a8e1db1536ed40c71312e7d2015c9e", "bcbaedd0455bfc84b87ba56b7f4aba2c"], "statement_hash": "66cffd63e622afc809ffcea154c77acb7025871176da7689b08b6db15ff40212"}}, {"rule": 2, "type": "equivalent", "target": "7007806ed1d8192364b7ef102e45e7ef", "evidence": {"same_day": true, "patch_ids": ["29a8e1db1536ed40c71312e7d2015c9e", "bcbaedd0455bfc84b87ba56b7f4aba2c"], "statement_hash": "66cffd63e622afc809ffcea154c77acb7025871176da7689b08b6db15ff40212"}}, {"rule": 2, "type": "equivalent", "target": "b5e7e2e2c6e0c744c28da7990822970a", "evidence": {"same_day": true, "patch_ids": ["29a8e1db1536ed40c71312e7d2015c9e", "bcbaedd0455bfc84b87ba56b7f4aba2c"], "statement_hash": "66cffd63e622afc809ffcea154c77acb7025871176da7689b08b6db15ff40212"}}, {"rule": 2, "type": "equivalent", "target": "bbf53e61656864929954589e1f777019", "evidence": {"same_day": true, "patch_ids": ["29a8e1db1536ed40c71312e7d2015c9e", "bcbaedd0455bfc84b87ba56b7f4aba2c"], "statement_hash": "66cffd63e622afc809ffcea154c77acb7025871176da7689b08b6db15ff40212"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "2ed41f6adf451dd977da156f72190023", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "将逻辑解码输出插件限制为新服务器参数 output_plugin_libraries 指定的集合", "evidence": {"same_day": true, "patch_ids": ["29a8e1db1536ed40c71312e7d2015c9e", "bcbaedd0455bfc84b87ba56b7f4aba2c"], "statement_hash": "66cffd63e622afc809ffcea154c77acb7025871176da7689b08b6db15ff40212"}, "url": "/docs/compare/?release=18.6#18.6-76e8d95ade6e17d6", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "b5e7e2e2c6e0c744c28da7990822970a", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "将逻辑解码输出插件限制为新服务器参数 output_plugin_libraries 指定的集合", "evidence": {"same_day": true, "patch_ids": ["29a8e1db1536ed40c71312e7d2015c9e", "bcbaedd0455bfc84b87ba56b7f4aba2c"], "statement_hash": "66cffd63e622afc809ffcea154c77acb7025871176da7689b08b6db15ff40212"}, "url": "/docs/compare/?release=16.15#16.15-d023ef134eea5c3e", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "7007806ed1d8192364b7ef102e45e7ef", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "将逻辑解码输出插件限制为新服务器参数 output_plugin_libraries 指定的集合", "evidence": {"same_day": true, "patch_ids": ["29a8e1db1536ed40c71312e7d2015c9e", "bcbaedd0455bfc84b87ba56b7f4aba2c"], "statement_hash": "66cffd63e622afc809ffcea154c77acb7025871176da7689b08b6db15ff40212"}, "url": "/docs/compare/?release=15.19#15.19-b1dbeb58e5a6c437", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "bbf53e61656864929954589e1f777019", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "将逻辑解码输出插件限制为新服务器参数 output_plugin_libraries 指定的集合", "evidence": {"same_day": true, "patch_ids": ["29a8e1db1536ed40c71312e7d2015c9e", "bcbaedd0455bfc84b87ba56b7f4aba2c"], "statement_hash": "66cffd63e622afc809ffcea154c77acb7025871176da7689b08b6db15ff40212"}, "url": "/docs/compare/?release=14.24#14.24-ee721afe6731e1ce", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-165fa935d28df7f1", "cves": ["CVE-2026-14663"], "html": "修复 contrib/pgcrypto 的 PGP 加密，使其能够检测不受支持的密码算法（Daniel Gustafsson）§ §
此前，如果 OpenSSL 拒绝所请求的密码算法（例如，因为它正以 FIPS 模式运行，或尚未加载 legacy provider），pgcrypto 无法发现这一失败，只会将未经加密的块与明文进行异或，使这种“加密”轻易即可破解。这通常发生在已弃用或不符合 FIPS 的密码算法上（cipher-algo=blowfish/bf、twofish、cast5 或 3des）。
\n默认情况下，pgcrypto 现在将无法解密以这种方式受影响的任何消息。为了能够取回这类数据，现新增选项 ignore-cipher-failure，用于 pgp_pub_decrypt() 和 pgp_sym_decrypt()。设置 ignore-cipher-failure=1 将恢复此前的行为，从而可以移除有缺陷的加密封装：
pgp_sym_decrypt(encrypted_column, any key, 'ignore-cipher-failure=1')\n\n识别出受影响的消息并移除其封装后，即可使用现代算法重新加密。不过，OpenSSL 的行为必须与创建这些有缺陷消息时相同：如果不受支持的算法集合并不相同，这种方法将无法奏效。请参阅 ignore-cipher-failure 的文档。
PostgreSQL 项目感谢 Shishir Sharma 报告此问题。（CVE-2026-14663）
", "text": "修复 contrib/pgcrypto 的 PGP 加密，使其能够检测不受支持的密码算法（Daniel Gustafsson）§ § 此前，如果 OpenSSL 拒绝所请求的密码算法（例如，因为它正以 FIPS 模式运行，或尚未加载 legacy provider），pgcrypto 无法发现这一失败，只会将未经加密的块与明文进行异或，使这种“加密”轻易即可破解。这通常发生在已弃用或不符合 FIPS 的密码算法上（cipher-algo=blowfish/bf、twofish、cast5 或 3des）。 默认情况下，pgcrypto 现在将无法解密以这种方式受影响的任何消息。为了能够取回这类数据，现新增选项 ignore-cipher-failure，用于 pgp_pub_decrypt() 和 pgp_sym_decrypt()。设置 ignore-cipher-failure=1 将恢复此前的行为，从而可以移除有缺陷的加密封装： pgp_sym_decrypt(encrypted_column, any key, 'ignore-cipher-failure=1') 识别出受影响的消息并移除其封装后，即可使用现代算法重新加密。不过，OpenSSL 的行为必须与创建这些有缺陷消息时相同：如果不受支持的算法集合并不相同，这种方法将无法奏效。请参阅 ignore-cipher-failure 的文档。 PostgreSQL 项目感谢 Shishir Sharma 报告此问题。（CVE-2026-14663）", "title": "修复 contrib/pgcrypto 的 PGP 加密，使其能够检测不受支持的密码算法", "commits": ["7eed42aa8", "b05cfc693"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "c131d453f626b34f3771dc3dfb482d0d12e4d08421871d685142d70b7b145c7e", "section_path": ["变更"], "commit_groups": [["472ef7e4a", "6ca6023ca", "7e29eb6f4", "b05cfc693", "ba207f58f", "d0ecee6de", "fe32b10fc"], ["49e795414", "4c5128ca0", "7eed42aa8", "953be116c", "ba2a63faf", "d97b3f58c", "e2c48c81f"]], "identity_text": "Fix contrib/pgcrypto's PGP encryption to detect unsupported ciphers (Daniel Gustafsson) Previously, if OpenSSL rejected the requested cipher (for example, because it is running in FIPS mode, or the legacy provider hasn't been loaded), pgcrypto failed to notice the failure and simply XOR'd the non-encrypted block with the plaintext, rendering the encryption trivially breakable. This will typically occur with deprecated or non-FIPS cipher algorithms (cipher-algo=blowfish/bf, twofish, cast5, or 3des). By default, pgcrypto will now fail to decrypt any messages that were affected in this way. To allow retrieval of such data, a new option ignore-cipher-failure has been added to pgp_pub_decrypt() and pgp_sym_decrypt(). Setting ignore-cipher-failure=1 will restore their previous behavior, allowing the faulty encryption wrapper to be stripped off: pgp_sym_decrypt(encrypted_column, any key, 'ignore-cipher-failure=1') Once the affected messages are identified and stripped of their wrappers, they can then be re-encrypted with a modern algorithm. It is important however that the behavior of OpenSSL be the same as it was when the faulty messages were created: if the set of unsupported algorithms is not the same, this approach will not work. See the documentation for ignore-cipher-failure. The PostgreSQL Project thanks Shishir Sharma for reporting this problem. 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FROM STDIN 命令后面的内联数据，即使 COPY 在发送 PGRES_COPY_IN 前失败（Tom Lane）§ §
此前，如果 COPY 命令在开始执行时失败（例如目标表不存在）， psql 无法意识到这一点，会继续把随后的内联数据当作 SQL 命令读取。即使在最好的情况下这也是错误的，在最坏的情况下则会构成 SQL 注入风险。现在，psql 会识别语法有效的 COPY ... FROM STDIN 命令，并在服务器没有返回 PGRES_COPY_IN 时自行跳过数据。
此修复不太可能影响生产 SQL 脚本，但测试脚本可能会有意测试失败的 COPY ... FROM STDIN 命令。此类脚本需要在每条这样的命令后增加一行 \\. 数据终止符。
PostgreSQL 项目感谢 Alexander Lakhin 报告此问题。（CVE-2026-6464）
", "text": "修复 psql：跳过脚本中的 COPY ... FROM STDIN 命令后面的内联数据，即使 COPY 在发送 PGRES_COPY_IN 前失败（Tom Lane）§ § 此前，如果 COPY 命令在开始执行时失败（例如目标表不存在）， psql 无法意识到这一点，会继续把随后的内联数据当作 SQL 命令读取。即使在最好的情况下这也是错误的，在最坏的情况下则会构成 SQL 注入风险。现在，psql 会识别语法有效的 COPY ... FROM STDIN 命令，并在服务器没有返回 PGRES_COPY_IN 时自行跳过数据。 此修复不太可能影响生产 SQL 脚本，但测试脚本可能会有意测试失败的 COPY ... FROM STDIN 命令。此类脚本需要在每条这样的命令后增加一行 \\. 数据终止符。 PostgreSQL 项目感谢 Alexander Lakhin 报告此问题。（CVE-2026-6464）", "title": "修复 psql：跳过脚本中的 COPY ... FROM STDIN 命令后面的内联数据，即使 COPY 在发送 PGRES_COPY_IN 前失败", "commits": ["46fa1f6f3", "dca6627de"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "b3f28a7521c132d0240d2e41137917fd177fc3a94e6b3acb5bd0a9630eb7a4b2", "section_path": ["变更"], "commit_groups": [["29921259e", "2bdfd5cdc", "3045a25ba", "3fdcfa8f7", "46fa1f6f3", "5c51ae455", "d6ab88d37"], ["7215c7e96", "8cdbabea7", "8cf01e213", "900894d35", "cf754f741", "db96e87f9", "dca6627de"]], "identity_text": "Fix psql to skip in-line data following a scripted COPY ... FROM STDIN command, even if the COPY fails before sending PGRES_COPY_IN (Tom Lane) Previously, if a COPY command failed at startup (for instance, because the target table doesn't exist) psql would not realize that and would proceed to read the following in-line data as SQL commands. In the best case that's wrong and in the worst case it's a SQL-injection hazard. Teach psql to recognize syntactically-valid COPY ... FROM STDIN commands and to skip data on its own authority if the server doesn't respond with PGRES_COPY_IN. While this fix is unlikely to affect any production SQL scripts, test scripts might intentionally exercise failing COPY ... FROM STDIN commands. Those will need to gain a \\. data terminator line after each such command. The PostgreSQL Project thanks Alexander Lakhin for reporting this problem. (CVE-2026-6464)", "commit_aliases": ["29921259e", "2bdfd5cdc", "3045a25ba", "3fdcfa8f7", "46fa1f6f3", "5c51ae455", "7215c7e96", "8cdbabea7", "8cf01e213", "900894d35", "cf754f741", "d6ab88d37", "db96e87f9", "dca6627de"], "source_commits": ["46fa1f6f3", "dca6627de"], "source_entry_id": "17.11/changes/003", "db_id": "df55d2444f4fc088a4a59341aed77733", "patch_ids": ["bb5ab12243a3045680f47ff1cb2c8480", "ecf5b4358ac3d55d48e5c5a6cf618bc5"], "statement_hash": "76e8147c7ad5a98f52d6ef02172b79adbee8009366c00ae89f0a205215b4b225", "relations": [{"rule": 2, "type": "equivalent", "target": "3c7601286aa0c9239f3cd6933eeddc1f", "evidence": {"same_day": true, "patch_ids": ["bb5ab12243a3045680f47ff1cb2c8480", "ecf5b4358ac3d55d48e5c5a6cf618bc5"], "statement_hash": "76e8147c7ad5a98f52d6ef02172b79adbee8009366c00ae89f0a205215b4b225"}}, {"rule": 2, "type": "equivalent", "target": "3fc8822e02c16e254582e2877b732705", "evidence": {"same_day": true, "patch_ids": ["bb5ab12243a3045680f47ff1cb2c8480", "ecf5b4358ac3d55d48e5c5a6cf618bc5"], "statement_hash": "76e8147c7ad5a98f52d6ef02172b79adbee8009366c00ae89f0a205215b4b225"}}, {"rule": 2, "type": "equivalent", "target": "a4c84c6885a3a330efb43a5e79c7eeca", "evidence": {"same_day": true, "patch_ids": ["bb5ab12243a3045680f47ff1cb2c8480", "ecf5b4358ac3d55d48e5c5a6cf618bc5"], "statement_hash": "76e8147c7ad5a98f52d6ef02172b79adbee8009366c00ae89f0a205215b4b225"}}, {"rule": 2, "type": "equivalent", "target": "ea96c547a98f3910bcd150ec7a9bb871", "evidence": {"same_day": true, "patch_ids": ["bb5ab12243a3045680f47ff1cb2c8480", "ecf5b4358ac3d55d48e5c5a6cf618bc5"], "statement_hash": "76e8147c7ad5a98f52d6ef02172b79adbee8009366c00ae89f0a205215b4b225"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "3c7601286aa0c9239f3cd6933eeddc1f", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 psql：跳过脚本中的 COPY ... FROM STDIN 命令后面的内联数据，即使 COPY 在发送 PGRES_COPY_IN 前失败", "evidence": {"same_day": true, "patch_ids": ["bb5ab12243a3045680f47ff1cb2c8480", "ecf5b4358ac3d55d48e5c5a6cf618bc5"], "statement_hash": "76e8147c7ad5a98f52d6ef02172b79adbee8009366c00ae89f0a205215b4b225"}, "url": "/docs/compare/?release=18.6#18.6-7711e8f6ad16c5dd", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "3fc8822e02c16e254582e2877b732705", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 psql：跳过脚本中的 COPY ... FROM STDIN 命令后面的内联数据，即使 COPY 在发送 PGRES_COPY_IN 前失败", "evidence": {"same_day": true, "patch_ids": ["bb5ab12243a3045680f47ff1cb2c8480", "ecf5b4358ac3d55d48e5c5a6cf618bc5"], "statement_hash": "76e8147c7ad5a98f52d6ef02172b79adbee8009366c00ae89f0a205215b4b225"}, "url": "/docs/compare/?release=16.15#16.15-2edf36c62c37ac67", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "ea96c547a98f3910bcd150ec7a9bb871", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 psql：跳过脚本中的 COPY ... FROM STDIN 命令后面的内联数据，即使 COPY 在发送 PGRES_COPY_IN 前失败", "evidence": {"same_day": true, "patch_ids": ["bb5ab12243a3045680f47ff1cb2c8480", "ecf5b4358ac3d55d48e5c5a6cf618bc5"], "statement_hash": "76e8147c7ad5a98f52d6ef02172b79adbee8009366c00ae89f0a205215b4b225"}, "url": "/docs/compare/?release=15.19#15.19-69623f56c9e9722f", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "a4c84c6885a3a330efb43a5e79c7eeca", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 psql：跳过脚本中的 COPY ... FROM STDIN 命令后面的内联数据，即使 COPY 在发送 PGRES_COPY_IN 前失败", "evidence": {"same_day": true, "patch_ids": ["bb5ab12243a3045680f47ff1cb2c8480", "ecf5b4358ac3d55d48e5c5a6cf618bc5"], "statement_hash": "76e8147c7ad5a98f52d6ef02172b79adbee8009366c00ae89f0a205215b4b225"}, "url": "/docs/compare/?release=14.24#14.24-6d095df52bb23c05", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-b9a0ccf8cc602cca", "cves": ["CVE-2026-16239"], "html": "交叉检查运行 EXECUTE 或 FETCH 的 portal 的输出行类型（Robert Haas）§
EXECUTE 和 FETCH 使用两个 portal：外层 portal 用于语句本身，内层 portal 则代其运行实际查询。此前可以使两个 portal 声明的行类型不一致，从而导致服务器内存泄露和任意代码执行。
PostgreSQL 项目感谢 Ben Morris（与 Claude 和 Anthropic Research 协作）和 Peter Geoghegan 报告此问题。（CVE-2026-16239）
", "text": "交叉检查运行 EXECUTE 或 FETCH 的 portal 的输出行类型（Robert Haas）§ EXECUTE 和 FETCH 使用两个 portal：外层 portal 用于语句本身，内层 portal 则代其运行实际查询。此前可以使两个 portal 声明的行类型不一致，从而导致服务器内存泄露和任意代码执行。 PostgreSQL 项目感谢 Ben Morris（与 Claude 和 Anthropic Research 协作）和 Peter Geoghegan 报告此问题。（CVE-2026-16239）", "title": "交叉检查运行 EXECUTE 或 FETCH 的 portal 的输出行类型", "commits": ["60887d348"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "d4a4a73c08aaccd5e19ce6f5b5e250a10e4ef195435dfd65da03edd9f7b7915c", "section_path": ["变更"], "commit_groups": [["1f49beef2", "37b8f3b0e", "60887d348", "64a65ead1", "7d150b5c9", "9e02e2e18", "fc933ce00"]], "identity_text": "Cross-check the output row type of a portal running EXECUTE or FETCH (Robert Haas) EXECUTE and FETCH use two portals: an outer one for the statement itself, and an inner one running the query being executed on its behalf. It was previously possible to make the declared row types of the two portals diverge, leading to server memory disclosure and arbitrary code execution. The PostgreSQL Project thanks Ben Morris (in collaboration with Claude and Anthropic Research) and Peter Geoghegan for reporting this problem. (CVE-2026-16239)", "commit_aliases": ["1f49beef2", "37b8f3b0e", "60887d348", "64a65ead1", "7d150b5c9", "9e02e2e18", "fc933ce00"], "source_commits": ["60887d348"], "source_entry_id": "17.11/changes/004", "db_id": "3ec84f87545930ce1036d071dad3e665", "patch_ids": ["bca9a8aea055bf40b974631f891c3459"], "statement_hash": "6bfdff724b157ff6ff7a59fd5879e05c524cc0a5a96ac58a33fa9750cc2db073", "relations": [{"rule": 2, "type": "equivalent", "target": "35f9a631aba647241e1c1fe3a3c4c269", "evidence": {"same_day": true, "patch_ids": ["bca9a8aea055bf40b974631f891c3459"], "statement_hash": "6bfdff724b157ff6ff7a59fd5879e05c524cc0a5a96ac58a33fa9750cc2db073"}}, {"rule": 2, "type": "equivalent", "target": "5b8818230400246029db8b181a69938c", "evidence": {"same_day": true, "patch_ids": ["bca9a8aea055bf40b974631f891c3459"], "statement_hash": "6bfdff724b157ff6ff7a59fd5879e05c524cc0a5a96ac58a33fa9750cc2db073"}}, {"rule": 2, "type": "equivalent", "target": "e2286cb0c701bb465fa540c1d4a45071", "evidence": {"same_day": true, "patch_ids": ["bca9a8aea055bf40b974631f891c3459"], "statement_hash": "6bfdff724b157ff6ff7a59fd5879e05c524cc0a5a96ac58a33fa9750cc2db073"}}, {"rule": 2, "type": "equivalent", "target": "e9fc65bf1c23945887e9b1904d08b935", "evidence": {"same_day": true, "patch_ids": ["bca9a8aea055bf40b974631f891c3459"], "statement_hash": "6bfdff724b157ff6ff7a59fd5879e05c524cc0a5a96ac58a33fa9750cc2db073"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "5b8818230400246029db8b181a69938c", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "交叉检查运行 EXECUTE 或 FETCH 的 portal 的输出行类型", "evidence": {"same_day": true, "patch_ids": ["bca9a8aea055bf40b974631f891c3459"], "statement_hash": "6bfdff724b157ff6ff7a59fd5879e05c524cc0a5a96ac58a33fa9750cc2db073"}, "url": "/docs/compare/?release=18.6#18.6-cdf902a8952d780f", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "35f9a631aba647241e1c1fe3a3c4c269", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "交叉检查运行 EXECUTE 或 FETCH 的 portal 的输出行类型", "evidence": {"same_day": true, "patch_ids": ["bca9a8aea055bf40b974631f891c3459"], "statement_hash": "6bfdff724b157ff6ff7a59fd5879e05c524cc0a5a96ac58a33fa9750cc2db073"}, "url": "/docs/compare/?release=16.15#16.15-82e9952b24a8b230", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "e2286cb0c701bb465fa540c1d4a45071", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "交叉检查运行 EXECUTE 或 FETCH 的 portal 的输出行类型", "evidence": {"same_day": true, "patch_ids": ["bca9a8aea055bf40b974631f891c3459"], "statement_hash": "6bfdff724b157ff6ff7a59fd5879e05c524cc0a5a96ac58a33fa9750cc2db073"}, "url": "/docs/compare/?release=15.19#15.19-1912ca9b594fe54f", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "e9fc65bf1c23945887e9b1904d08b935", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "交叉检查运行 EXECUTE 或 FETCH 的 portal 的输出行类型", "evidence": {"same_day": true, "patch_ids": ["bca9a8aea055bf40b974631f891c3459"], "statement_hash": "6bfdff724b157ff6ff7a59fd5879e05c524cc0a5a96ac58a33fa9750cc2db073"}, "url": "/docs/compare/?release=14.24#14.24-741f9481441d702d", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-9aaf551ddc6d8e1b", "cves": ["CVE-2026-14669"], "html": "修复 to_char() 处理过长时区缩写时发生的缓冲区越界写入（Tom Lane）§
这很容易导致服务器崩溃，并且已有报告表明可利用该问题执行任意代码。
\nPostgreSQL 项目感谢 Hcamael、Amjad Shahzad、AntAISecurityLab 的 Tan Zhen、Tomer Fichman、Zheng Yu、Amy Burnett（OpenAI Codex Security）、Rick de Jager、Heewon Song、Sylvie Mayer、Aleksander Alekseev 和 Hillai Ben Sasson 报告此问题。（CVE-2026-14669）
", "text": "修复 to_char() 处理过长时区缩写时发生的缓冲区越界写入（Tom Lane）§ 这很容易导致服务器崩溃，并且已有报告表明可利用该问题执行任意代码。 PostgreSQL 项目感谢 Hcamael、Amjad Shahzad、AntAISecurityLab 的 Tan Zhen、Tomer Fichman、Zheng Yu、Amy Burnett（OpenAI Codex Security）、Rick de Jager、Heewon Song、Sylvie Mayer、Aleksander Alekseev 和 Hillai Ben Sasson 报告此问题。（CVE-2026-14669）", "title": "修复 to_char() 处理过长时区缩写时发生的缓冲区越界写入", "commits": ["12a620686"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "e48e09d9e3c9a825e6ba8cae1c58c126b12b0aa1fb2f25d571ebc8683cc7915c", "section_path": ["变更"], "commit_groups": [["12a620686", "3294ab839", "3d724bf4f", "4fafe2380"], ["2cf28d1b9", "331016322", "5dbeb69bc", "5fb3c6389", "8f64cc83f", "b614de487", "bef46aed3"]], "identity_text": "Fix buffer overrun with long time zone abbreviation in to_char() (Tom Lane) This can easily crash the server, and exploits leading to arbitrary code execution have been reported. The PostgreSQL Project thanks Hcamael, Amjad Shahzad, Tan Zhen of AntAISecurityLab, Tomer Fichman, Zheng Yu, Amy Burnett (OpenAI Codex Security), Rick de Jager, Heewon Song, Sylvie Mayer, Aleksander Alekseev, and Hillai Ben Sasson for reporting this problem. (CVE-2026-14669)", "commit_aliases": ["12a620686", "2cf28d1b9", "3294ab839", "331016322", "3d724bf4f", "4fafe2380", "5dbeb69bc", "5fb3c6389", "8f64cc83f", "b614de487", "bef46aed3"], "source_commits": ["12a620686", "5dbeb69bc"], "source_entry_id": "17.11/changes/005", "db_id": "bf82a2510c4dfe4309435e9bce0ab3a4", "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9", "f6e281e04c97bcdc5fa29a25f60517ca"], "statement_hash": "07a38d896c94ef2711ebb1c7c66bf1537f00d81b7488271a922229ab5b8f1962", "relations": [{"rule": 2, "type": "equivalent", "target": "027ccc17f71deb2b38e14fc8cc82dccd", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9", "f6e281e04c97bcdc5fa29a25f60517ca"], "statement_hash": "07a38d896c94ef2711ebb1c7c66bf1537f00d81b7488271a922229ab5b8f1962", "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}}, {"rule": 2, "type": "equivalent", "target": "1b34d3e2b18d75096fd2914d3673446c", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9", "f6e281e04c97bcdc5fa29a25f60517ca"], "statement_hash": "07a38d896c94ef2711ebb1c7c66bf1537f00d81b7488271a922229ab5b8f1962", "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}}, {"rule": 2, "type": "related", "target": "1ba572e4a9f5584ecce320e293d4b258", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"], "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}}, {"rule": 2, "type": "equivalent", "target": "70897dba323af27792543b2311799668", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9", "f6e281e04c97bcdc5fa29a25f60517ca"], "statement_hash": "07a38d896c94ef2711ebb1c7c66bf1537f00d81b7488271a922229ab5b8f1962", "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}}, {"rule": 2, "type": "related", "target": "771fa954f9b22168a0764dc12074dadb", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"], "ambiguous_patch_ids": 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\n如果传入编码无效的数据，这些函数可能会在转换缓冲区末尾之外写入数据。
\nPostgreSQL 项目感谢 Francesco Verardi 报告此问题。（CVE-2026-14664）
", "text": "修复正则表达式匹配/拆分函数中的缓冲区越界写入（Masahiko Sawada）§ 如果传入编码无效的数据，这些函数可能会在转换缓冲区末尾之外写入数据。 PostgreSQL 项目感谢 Francesco Verardi 报告此问题。（CVE-2026-14664）", "title": "修复正则表达式匹配/拆分函数中的缓冲区越界写入", "commits": ["e91dcfcca"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "bf5c77bf66898797fd437c8fb0f97f830ad88679a21767983bbe1e8a9b0d2940", "section_path": ["变更"], "commit_groups": [["127a0673f", "3179253c2", "343aabf1d", "7df2aa8ef", "890327639", "b7e5c3f63", "e91dcfcca"]], "identity_text": "Fix buffer overrun in regexp match/split functions (Masahiko Sawada) If passed invalidly-encoded data, these functions could write past the end of their conversion buffer. The PostgreSQL Project thanks Francesco Verardi for reporting this problem. (CVE-2026-14664)", "commit_aliases": ["127a0673f", "3179253c2", "343aabf1d", "7df2aa8ef", "890327639", "b7e5c3f63", "e91dcfcca"], "source_commits": ["e91dcfcca"], "source_entry_id": "17.11/changes/006", "db_id": "ee60c1b700f965a0913e70294c9927f5", "patch_ids": ["0cfa785ead8bfc886613fffe5a36e1bc"], "statement_hash": "966f554e1e936775481250a24075b22027e89685eec1e0c08a9bfd4f761ad444", "relations": [{"rule": 2, "type": "equivalent", "target": "2dff40febce19283ae38aa647816cd73", "evidence": {"same_day": true, "patch_ids": ["0cfa785ead8bfc886613fffe5a36e1bc"], "statement_hash": "966f554e1e936775481250a24075b22027e89685eec1e0c08a9bfd4f761ad444"}}, {"rule": 2, "type": "equivalent", "target": "31c6d0327b9be4008171a2064e268f6c", "evidence": {"same_day": true, "patch_ids": ["0cfa785ead8bfc886613fffe5a36e1bc"], "statement_hash": "966f554e1e936775481250a24075b22027e89685eec1e0c08a9bfd4f761ad444"}}, {"rule": 2, "type": "equivalent", "target": "8e5a5f5c59f91019e7f4f9160ae97951", "evidence": {"same_day": true, "patch_ids": ["0cfa785ead8bfc886613fffe5a36e1bc"], "statement_hash": "966f554e1e936775481250a24075b22027e89685eec1e0c08a9bfd4f761ad444"}}, {"rule": 2, "type": "equivalent", "target": "ee22496a80ac478c7a0e734782b86377", "evidence": {"same_day": true, "patch_ids": ["0cfa785ead8bfc886613fffe5a36e1bc"], "statement_hash": "966f554e1e936775481250a24075b22027e89685eec1e0c08a9bfd4f761ad444"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "31c6d0327b9be4008171a2064e268f6c", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复正则表达式匹配/拆分函数中的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["0cfa785ead8bfc886613fffe5a36e1bc"], "statement_hash": "966f554e1e936775481250a24075b22027e89685eec1e0c08a9bfd4f761ad444"}, "url": "/docs/compare/?release=18.6#18.6-94204615ddc5390c", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "2dff40febce19283ae38aa647816cd73", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复正则表达式匹配/拆分函数中的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["0cfa785ead8bfc886613fffe5a36e1bc"], "statement_hash": "966f554e1e936775481250a24075b22027e89685eec1e0c08a9bfd4f761ad444"}, "url": "/docs/compare/?release=16.15#16.15-81cf49bd6b870f85", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "ee22496a80ac478c7a0e734782b86377", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复正则表达式匹配/拆分函数中的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["0cfa785ead8bfc886613fffe5a36e1bc"], "statement_hash": "966f554e1e936775481250a24075b22027e89685eec1e0c08a9bfd4f761ad444"}, "url": "/docs/compare/?release=15.19#15.19-8a672df6043ea295", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "8e5a5f5c59f91019e7f4f9160ae97951", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复正则表达式匹配/拆分函数中的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["0cfa785ead8bfc886613fffe5a36e1bc"], "statement_hash": "966f554e1e936775481250a24075b22027e89685eec1e0c08a9bfd4f761ad444"}, "url": "/docs/compare/?release=14.24#14.24-e8fecccd48726ac8", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-e6de3d1ea5ee5a52", "cves": ["CVE-2026-18024"], "html": "增强 ascii() 函数对无效输入的防护（Michael Paquier）§
通过提供编码无效的输入，可以诱使此函数读取并返回几个不应访问的数据字节。在启用断言的构建中，还可能触发其断言。
\nPostgreSQL 项目感谢 Hcamael 报告此问题。（CVE-2026-18024）
", "text": "增强 ascii() 函数对无效输入的防护（Michael Paquier）§ 通过提供编码无效的输入，可以诱使此函数读取并返回几个不应访问的数据字节。在启用断言的构建中，还可能触发其断言。 PostgreSQL 项目感谢 Hcamael 报告此问题。（CVE-2026-18024）", "title": "增强 ascii() 函数对无效输入的防护", "commits": ["849da8210"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "4b6d84db9304a6c8fbc7182e7b84611ba213108b7e06f7b9941c114487a2e63f", "section_path": ["变更"], "commit_groups": [["08e812c02", "3b925133b", "42d333a78", "80ce920a5", "849da8210", "a16c31d39", "ac450853d"]], "identity_text": "Harden the ascii() function against invalid input (Michael Paquier) By supplying invalidly-encoded input, this function could be coaxed to read and return a few bytes of data that it shouldn't. In assert-enabled builds, its assertions could be triggered too. The PostgreSQL Project thanks Hcamael for reporting this problem. (CVE-2026-18024)", "commit_aliases": ["08e812c02", "3b925133b", "42d333a78", "80ce920a5", "849da8210", "a16c31d39", "ac450853d"], "source_commits": ["849da8210"], "source_entry_id": "17.11/changes/007", "db_id": "12383fa89e42b03b68791e4222af5d42", "patch_ids": ["55b264296776b9b13ab6e5f986e375f2"], "statement_hash": "30f93fe9d01d5c3e7f51b7ee86b38f0ddd66109774cc7f5bd732db874c26c1a3", "relations": [{"rule": 2, "type": "equivalent", "target": "28116a0caca0f02980e6eaa33ad62878", "evidence": {"same_day": true, "patch_ids": ["55b264296776b9b13ab6e5f986e375f2"], "statement_hash": "30f93fe9d01d5c3e7f51b7ee86b38f0ddd66109774cc7f5bd732db874c26c1a3"}}, {"rule": 2, "type": "equivalent", "target": "3fcea79a14fe4f9b97afbae1d619ffdf", "evidence": {"same_day": true, "patch_ids": ["55b264296776b9b13ab6e5f986e375f2"], "statement_hash": "30f93fe9d01d5c3e7f51b7ee86b38f0ddd66109774cc7f5bd732db874c26c1a3"}}, {"rule": 2, "type": "equivalent", "target": "5a7d1cc5fb2e41a7a2acbb0c59894992", "evidence": {"same_day": true, "patch_ids": ["55b264296776b9b13ab6e5f986e375f2"], "statement_hash": "30f93fe9d01d5c3e7f51b7ee86b38f0ddd66109774cc7f5bd732db874c26c1a3"}}, {"rule": 2, "type": "equivalent", "target": "776c34393ca8da3ea9c128e3d7219ad3", "evidence": {"same_day": true, "patch_ids": ["55b264296776b9b13ab6e5f986e375f2"], "statement_hash": "30f93fe9d01d5c3e7f51b7ee86b38f0ddd66109774cc7f5bd732db874c26c1a3"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "28116a0caca0f02980e6eaa33ad62878", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "增强 ascii() 函数对无效输入的防护", "evidence": {"same_day": true, "patch_ids": ["55b264296776b9b13ab6e5f986e375f2"], "statement_hash": "30f93fe9d01d5c3e7f51b7ee86b38f0ddd66109774cc7f5bd732db874c26c1a3"}, "url": "/docs/compare/?release=18.6#18.6-4a45e658fb69cefb", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "5a7d1cc5fb2e41a7a2acbb0c59894992", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "增强 ascii() 函数对无效输入的防护", "evidence": {"same_day": true, "patch_ids": ["55b264296776b9b13ab6e5f986e375f2"], "statement_hash": "30f93fe9d01d5c3e7f51b7ee86b38f0ddd66109774cc7f5bd732db874c26c1a3"}, "url": "/docs/compare/?release=16.15#16.15-483eebd2875e58ea", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "3fcea79a14fe4f9b97afbae1d619ffdf", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "增强 ascii() 函数对无效输入的防护", "evidence": {"same_day": true, "patch_ids": ["55b264296776b9b13ab6e5f986e375f2"], "statement_hash": "30f93fe9d01d5c3e7f51b7ee86b38f0ddd66109774cc7f5bd732db874c26c1a3"}, "url": "/docs/compare/?release=15.19#15.19-7d22c46c0b1e985e", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "776c34393ca8da3ea9c128e3d7219ad3", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "增强 ascii() 函数对无效输入的防护", "evidence": {"same_day": true, "patch_ids": ["55b264296776b9b13ab6e5f986e375f2"], "statement_hash": "30f93fe9d01d5c3e7f51b7ee86b38f0ddd66109774cc7f5bd732db874c26c1a3"}, "url": "/docs/compare/?release=14.24#14.24-7c4016acc1446315", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-5d9a6f9f262886ec", "cves": ["CVE-2026-16238"], "html": "修复 pg_restore_attribute_stats() 对多范围类型的处理（OpenAI Security Research Team）
pg_restore_attribute_stats() 将多范围类型当作其底层范围类型处理。对于边界直方图，这是正确的，但对于其他所有统计信息类型都是错误的。
PostgreSQL 项目感谢 Amy Burnett（OpenAI Codex Security）报告此问题。（CVE-2026-16238）
", "text": "修复 pg_restore_attribute_stats() 对多范围类型的处理（OpenAI Security Research Team） pg_restore_attribute_stats() 将多范围类型当作其底层范围类型处理。对于边界直方图，这是正确的，但对于其他所有统计信息类型都是错误的。 PostgreSQL 项目感谢 Amy Burnett（OpenAI Codex Security）报告此问题。（CVE-2026-16238）", "title": "修复 pg_restore_attribute_stats() 对多范围类型的处理", "commits": [], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "307fae39b42e66fdb916abdaa0d4a62270ca6fbb1038040ff752f2c348b63a99", "section_path": ["变更"], "commit_groups": [["08454e8b2", "57835938f", "b3d9262bb"], ["8d428c6e6"]], "identity_text": "Fix multirange type handling in pg_restore_attribute_stats() (OpenAI Security Research Team) pg_restore_attribute_stats() treated multirange types just like their underlying range type. This works correctly for the bounds histogram, but it was wrong for all the other statistics kinds. The PostgreSQL Project thanks Amy Burnett (OpenAI Codex Security) for reporting this problem. (CVE-2026-16238)", "commit_aliases": ["08454e8b2", "57835938f", "8d428c6e6", "b3d9262bb"], "source_commits": ["57835938f", "8d428c6e6"], "source_entry_id": "17.11/changes/008", "db_id": "c02d2730726a9bba001c3dcad007a406", "patch_ids": ["d27616df77f838ec6d65ceac3dab4d29", "e919d719afc48bf0f48ebde0e7586d45"], "statement_hash": "6c702ad16b71228cee81cbc85de20c25fe06c4ec29202dc0be958c9f409a702d", "relations": [{"rule": 2, "type": "equivalent", "target": "23063a48b3c2ddae3e3c1623fd1552b5", "evidence": {"same_day": true, "patch_ids": ["d27616df77f838ec6d65ceac3dab4d29", "e919d719afc48bf0f48ebde0e7586d45"], "statement_hash": "6c702ad16b71228cee81cbc85de20c25fe06c4ec29202dc0be958c9f409a702d"}}, {"rule": 2, "type": "equivalent", "target": "7cdf19717697008d9621e1145ea725cc", "evidence": {"same_day": true, "patch_ids": ["d27616df77f838ec6d65ceac3dab4d29", "e919d719afc48bf0f48ebde0e7586d45"], "statement_hash": "6c702ad16b71228cee81cbc85de20c25fe06c4ec29202dc0be958c9f409a702d"}}, {"rule": 2, "type": "equivalent", "target": "b73333feb74980fc954bc5f235124549", "evidence": {"same_day": true, "patch_ids": ["d27616df77f838ec6d65ceac3dab4d29", "e919d719afc48bf0f48ebde0e7586d45"], "statement_hash": "6c702ad16b71228cee81cbc85de20c25fe06c4ec29202dc0be958c9f409a702d"}}, {"rule": 2, "type": "equivalent", "target": "e8b2ed03b7135b067945fe6134a48d0c", "evidence": {"same_day": true, "patch_ids": ["d27616df77f838ec6d65ceac3dab4d29", "e919d719afc48bf0f48ebde0e7586d45"], "statement_hash": "6c702ad16b71228cee81cbc85de20c25fe06c4ec29202dc0be958c9f409a702d"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "b73333feb74980fc954bc5f235124549", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 pg_restore_attribute_stats() 对多范围类型的处理", "evidence": {"same_day": true, "patch_ids": ["d27616df77f838ec6d65ceac3dab4d29", "e919d719afc48bf0f48ebde0e7586d45"], "statement_hash": "6c702ad16b71228cee81cbc85de20c25fe06c4ec29202dc0be958c9f409a702d"}, "url": "/docs/compare/?release=18.6#18.6-61ef917ba36ebc0f", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "e8b2ed03b7135b067945fe6134a48d0c", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 pg_restore_attribute_stats() 对多范围类型的处理", "evidence": {"same_day": true, "patch_ids": ["d27616df77f838ec6d65ceac3dab4d29", "e919d719afc48bf0f48ebde0e7586d45"], "statement_hash": "6c702ad16b71228cee81cbc85de20c25fe06c4ec29202dc0be958c9f409a702d"}, "url": "/docs/compare/?release=16.15#16.15-5d9a6f9f262886ec", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "7cdf19717697008d9621e1145ea725cc", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 pg_restore_attribute_stats() 对多范围类型的处理", "evidence": {"same_day": true, "patch_ids": ["d27616df77f838ec6d65ceac3dab4d29", "e919d719afc48bf0f48ebde0e7586d45"], "statement_hash": "6c702ad16b71228cee81cbc85de20c25fe06c4ec29202dc0be958c9f409a702d"}, "url": "/docs/compare/?release=15.19#15.19-5d9a6f9f262886ec", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "23063a48b3c2ddae3e3c1623fd1552b5", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 pg_restore_attribute_stats() 对多范围类型的处理", "evidence": {"same_day": true, "patch_ids": ["d27616df77f838ec6d65ceac3dab4d29", "e919d719afc48bf0f48ebde0e7586d45"], "statement_hash": "6c702ad16b71228cee81cbc85de20c25fe06c4ec29202dc0be958c9f409a702d"}, "url": "/docs/compare/?release=14.24#14.24-5d9a6f9f262886ec", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-3000fb5c37bacd7b", "cves": ["CVE-2026-14668"], "html": "让 scalarineqsel() 检查预期为 tid 类型的常量是否确实属于该类型（Tom Lane）§
对于所有使用此估算器的内置操作符，这一预期都会成立，但恶意构造的操作符可能违反该预期，从而导致崩溃或服务器内存泄露。
\nPostgreSQL 项目感谢 Hcamael 报告此问题。（CVE-2026-14668）
", "text": "让 scalarineqsel() 检查预期为 tid 类型的常量是否确实属于该类型（Tom Lane）§ 对于所有使用此估算器的内置操作符，这一预期都会成立，但恶意构造的操作符可能违反该预期，从而导致崩溃或服务器内存泄露。 PostgreSQL 项目感谢 Hcamael 报告此问题。（CVE-2026-14668）", "title": "让 scalarineqsel() 检查预期为 tid 类型的常量是否确实属于该类型", "commits": ["0ebf896f4"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "fea9adf48b6705a5dee73365d4727814d5833aa6308cbeefe9a3ec34e67e1f78", "section_path": ["变更"], "commit_groups": [["005ffaa7f", "0d60ee717", "0ebf896f4", "591192e2e", "59205c7e9", "8f0c3d2fe", "a2cb5a1cf"]], "identity_text": "Make scalarineqsel() check that a constant it expects to be of type tid actually is (Tom Lane) This expectation will hold for all the built-in operators that use this estimator, but a maliciously-constructed operator could violate it, leading to a crash or server memory disclosure. The PostgreSQL Project thanks Hcamael for reporting this problem. (CVE-2026-14668)", "commit_aliases": ["005ffaa7f", "0d60ee717", "0ebf896f4", "591192e2e", "59205c7e9", "8f0c3d2fe", "a2cb5a1cf"], "source_commits": ["0ebf896f4"], "source_entry_id": "17.11/changes/009", "db_id": "7cbf7cb5e5571e3fde38e116219b7ff1", "patch_ids": ["de7610ed8a59864556ff1fc7a996e26b"], "statement_hash": "9af3f49dfa69a353a456c0aa2751b844ae492634dd94bd7ac2ae7a38d22121ba", "relations": [{"rule": 2, "type": "equivalent", "target": "0c4b36600df59cbe54ae892784279e12", "evidence": {"same_day": true, "patch_ids": ["de7610ed8a59864556ff1fc7a996e26b"], "statement_hash": "9af3f49dfa69a353a456c0aa2751b844ae492634dd94bd7ac2ae7a38d22121ba"}}, {"rule": 2, "type": "equivalent", "target": "8e21096b01a0beb228febdc9d9b21e1a", "evidence": {"same_day": true, "patch_ids": ["de7610ed8a59864556ff1fc7a996e26b"], "statement_hash": "9af3f49dfa69a353a456c0aa2751b844ae492634dd94bd7ac2ae7a38d22121ba"}}, {"rule": 2, "type": "equivalent", "target": "97ac47be877760addc2f5b0afd4a077b", "evidence": {"same_day": true, "patch_ids": ["de7610ed8a59864556ff1fc7a996e26b"], "statement_hash": "9af3f49dfa69a353a456c0aa2751b844ae492634dd94bd7ac2ae7a38d22121ba"}}, {"rule": 2, "type": "equivalent", "target": "9bd6480c825dec4b7dd7e98d8eca9b8f", "evidence": {"same_day": true, "patch_ids": ["de7610ed8a59864556ff1fc7a996e26b"], "statement_hash": "9af3f49dfa69a353a456c0aa2751b844ae492634dd94bd7ac2ae7a38d22121ba"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "97ac47be877760addc2f5b0afd4a077b", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "让 scalarineqsel() 检查预期为 tid 类型的常量是否确实属于该类型", "evidence": {"same_day": true, "patch_ids": ["de7610ed8a59864556ff1fc7a996e26b"], "statement_hash": "9af3f49dfa69a353a456c0aa2751b844ae492634dd94bd7ac2ae7a38d22121ba"}, "url": "/docs/compare/?release=18.6#18.6-d63d1269e786113b", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "8e21096b01a0beb228febdc9d9b21e1a", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "让 scalarineqsel() 检查预期为 tid 类型的常量是否确实属于该类型", "evidence": {"same_day": true, "patch_ids": ["de7610ed8a59864556ff1fc7a996e26b"], "statement_hash": "9af3f49dfa69a353a456c0aa2751b844ae492634dd94bd7ac2ae7a38d22121ba"}, "url": "/docs/compare/?release=16.15#16.15-ae6cefffe2c19e7b", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "0c4b36600df59cbe54ae892784279e12", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "让 scalarineqsel() 检查预期为 tid 类型的常量是否确实属于该类型", "evidence": {"same_day": true, "patch_ids": ["de7610ed8a59864556ff1fc7a996e26b"], "statement_hash": "9af3f49dfa69a353a456c0aa2751b844ae492634dd94bd7ac2ae7a38d22121ba"}, "url": "/docs/compare/?release=15.19#15.19-e5c6e044e35ae26d", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "9bd6480c825dec4b7dd7e98d8eca9b8f", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "让 scalarineqsel() 检查预期为 tid 类型的常量是否确实属于该类型", "evidence": {"same_day": true, "patch_ids": ["de7610ed8a59864556ff1fc7a996e26b"], "statement_hash": "9af3f49dfa69a353a456c0aa2751b844ae492634dd94bd7ac2ae7a38d22121ba"}, "url": "/docs/compare/?release=14.24#14.24-5956eea8fb565470", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-730aec962ef92894", "cves": ["CVE-2026-14662"], "html": "增强 tsvector 和 tsquery 代码对超长值的防护（包括单个词位以及向量/查询的总长度）（Tom Lane）§ §
文档所述限制并未在所有代码路径上强制执行。
\nPostgreSQL 项目感谢 Yuhang Wu、Zhenpeng Lin、Zheng Yu 和 Hcamael 报告这些问题。（CVE-2026-14662）
", "text": "增强 tsvector 和 tsquery 代码对超长值的防护（包括单个词位以及向量/查询的总长度）（Tom Lane）§ § 文档所述限制并未在所有代码路径上强制执行。 PostgreSQL 项目感谢 Yuhang Wu、Zhenpeng Lin、Zheng Yu 和 Hcamael 报告这些问题。（CVE-2026-14662）", "title": "增强 tsvector 和 tsquery 代码对超长值的防护（包括单个词位以及向量/查询的总长度）", "commits": ["8e87bd473", "fe0b5bd6d"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "8f281fd686eb18875b2d4525794b394e15f384a5b767df44ee9619280eb6c55c", "section_path": ["变更"], "commit_groups": [["1e3014f37", "3b2238fbe", "4f8b37b6b", "84b6a7a06", "8e87bd473", "90649b6f8", "dddc8a69f"], ["23d9ad771", "7c1a8805a", "7c2ba321d", "cb947ca31", "e25135057", "f443d0a0a", "fe0b5bd6d"]], "identity_text": "Harden tsvector and tsquery code against overly long values (both individual lexemes and total vector/query length) (Tom Lane) The documented limits were not enforced in all code paths. The PostgreSQL Project thanks Yuhang Wu, Zhenpeng Lin, Zheng Yu, and Hcamael for reporting these problems. (CVE-2026-14662)", "commit_aliases": ["1e3014f37", "23d9ad771", "3b2238fbe", "4f8b37b6b", "7c1a8805a", "7c2ba321d", "84b6a7a06", "8e87bd473", "90649b6f8", "cb947ca31", "dddc8a69f", "e25135057", "f443d0a0a", "fe0b5bd6d"], "source_commits": ["8e87bd473", "fe0b5bd6d"], "source_entry_id": "17.11/changes/010", "db_id": "aa4dcca3c56a82ca052b2bdbc7e68c1b", "patch_ids": ["5d937de349e172af32f322b84994627c", "8594911de53a70a64ff7a92a7e2e7410"], "statement_hash": "58ee7f5cd2b407484897fe1a7e956c16ce0212b7ffe535ead9c50c21ba819c1e", "relations": [{"rule": 2, "type": "equivalent", "target": "3d26273adc446717f1dd7040f0311025", "evidence": {"same_day": true, "patch_ids": ["5d937de349e172af32f322b84994627c", "8594911de53a70a64ff7a92a7e2e7410"], "statement_hash": "58ee7f5cd2b407484897fe1a7e956c16ce0212b7ffe535ead9c50c21ba819c1e"}}, {"rule": 2, "type": "equivalent", "target": "728b5628883585075c121bd29db0affe", "evidence": {"same_day": true, "patch_ids": ["5d937de349e172af32f322b84994627c", "8594911de53a70a64ff7a92a7e2e7410"], "statement_hash": "58ee7f5cd2b407484897fe1a7e956c16ce0212b7ffe535ead9c50c21ba819c1e"}}, {"rule": 2, "type": "equivalent", "target": "e8daa5e986b5139aa334ffb65fe716c9", "evidence": {"same_day": true, "patch_ids": ["5d937de349e172af32f322b84994627c", "8594911de53a70a64ff7a92a7e2e7410"], "statement_hash": "58ee7f5cd2b407484897fe1a7e956c16ce0212b7ffe535ead9c50c21ba819c1e"}}, {"rule": 2, "type": "equivalent", "target": "f4f98b5e09530fc0d9eabe85409d03ef", "evidence": {"same_day": true, "patch_ids": ["5d937de349e172af32f322b84994627c", "8594911de53a70a64ff7a92a7e2e7410"], "statement_hash": "58ee7f5cd2b407484897fe1a7e956c16ce0212b7ffe535ead9c50c21ba819c1e"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "e8daa5e986b5139aa334ffb65fe716c9", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "增强 tsvector 和 tsquery 代码对超长值的防护（包括单个词位以及向量/查询的总长度）", "evidence": {"same_day": true, "patch_ids": ["5d937de349e172af32f322b84994627c", "8594911de53a70a64ff7a92a7e2e7410"], "statement_hash": "58ee7f5cd2b407484897fe1a7e956c16ce0212b7ffe535ead9c50c21ba819c1e"}, "url": "/docs/compare/?release=18.6#18.6-774bcf033add5976", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "f4f98b5e09530fc0d9eabe85409d03ef", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "增强 tsvector 和 tsquery 代码对超长值的防护（包括单个词位以及向量/查询的总长度）", "evidence": {"same_day": true, "patch_ids": ["5d937de349e172af32f322b84994627c", "8594911de53a70a64ff7a92a7e2e7410"], "statement_hash": "58ee7f5cd2b407484897fe1a7e956c16ce0212b7ffe535ead9c50c21ba819c1e"}, "url": "/docs/compare/?release=16.15#16.15-60c62245c66747ba", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "3d26273adc446717f1dd7040f0311025", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "增强 tsvector 和 tsquery 代码对超长值的防护（包括单个词位以及向量/查询的总长度）", "evidence": {"same_day": true, "patch_ids": ["5d937de349e172af32f322b84994627c", "8594911de53a70a64ff7a92a7e2e7410"], "statement_hash": "58ee7f5cd2b407484897fe1a7e956c16ce0212b7ffe535ead9c50c21ba819c1e"}, "url": "/docs/compare/?release=15.19#15.19-17c179b4d9e41496", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "728b5628883585075c121bd29db0affe", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "增强 tsvector 和 tsquery 代码对超长值的防护（包括单个词位以及向量/查询的总长度）", "evidence": {"same_day": true, "patch_ids": ["5d937de349e172af32f322b84994627c", "8594911de53a70a64ff7a92a7e2e7410"], "statement_hash": "58ee7f5cd2b407484897fe1a7e956c16ce0212b7ffe535ead9c50c21ba819c1e"}, "url": "/docs/compare/?release=14.24#14.24-60bda94b8310bec9", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-dd9a429d3ce13500", "cves": ["CVE-2026-14679"], "html": "修复多处错误地假定无需处理超过 FUNC_MAX_ARGS 个函数参数的问题（Tom Lane）§ §
特别是，服务器对聚合函数参数数量的实际限制是 FUNC_MAX_ARGS - 1，但解析器未强制执行这一限制，给后续处理带来隐患。
PostgreSQL 项目感谢 Zheng Yu、ylwangtju 和 Masahiko Sawada 报告这些问题。（CVE-2026-14679）
", "text": "修复多处错误地假定无需处理超过 FUNC_MAX_ARGS 个函数参数的问题（Tom Lane）§ § 特别是，服务器对聚合函数参数数量的实际限制是 FUNC_MAX_ARGS - 1，但解析器未强制执行这一限制，给后续处理带来隐患。 PostgreSQL 项目感谢 Zheng Yu、ylwangtju 和 Masahiko Sawada 报告这些问题。（CVE-2026-14679）", "title": "修复多处错误地假定无需处理超过 FUNC_MAX_ARGS 个函数参数的问题", "commits": ["797e3cc4c", "8a40f4b09"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "f57d4abf105f0fec4b0d28877da96f907aef7d6bddae32943cf12a3d8be703af", "section_path": ["变更"], "commit_groups": [["2a03f21da", "32e0d25d4", "42d9749b7", "60e7329b9", "8a40f4b09", "c7f462838", "eb2fa2704"], ["797e3cc4c", "7bd56f7a3", "7f0e1aac7", "8c67c4cf5", "92972e815", "b417744a7", "cf44ff5e6"]], "identity_text": "Fix various places that mistakenly assumed they would not have to deal with more than FUNC_MAX_ARGS function arguments (Tom Lane) Notably, the server's actual limit on the number of arguments to an aggregate function is FUNC_MAX_ARGS - 1, but the parser failed to enforce that, creating hazards downstream. The PostgreSQL Project thanks Zheng Yu, ylwangtju, and Masahiko Sawada for reporting these problems. (CVE-2026-14679)", "commit_aliases": ["2a03f21da", "32e0d25d4", "42d9749b7", "60e7329b9", "797e3cc4c", "7bd56f7a3", "7f0e1aac7", "8a40f4b09", "8c67c4cf5", "92972e815", "b417744a7", "c7f462838", "cf44ff5e6", "eb2fa2704"], "source_commits": ["797e3cc4c", "8a40f4b09"], "source_entry_id": "17.11/changes/011", "db_id": "349adc6ad9cc12d1c04aad6e3d659917", "patch_ids": ["9c4aca692d373e760403997525c9e073", "ea0a783b3715942dc32c661399220cb1"], "statement_hash": "41c4e79daa1ea65508b91d04fa5138fb9c313606a4ceade697072cb89843941f", "relations": [{"rule": 2, "type": "equivalent", "target": "41c6f110168cdb7324811a04a2654cf2", "evidence": {"same_day": true, "patch_ids": ["9c4aca692d373e760403997525c9e073", "ea0a783b3715942dc32c661399220cb1"], "statement_hash": "41c4e79daa1ea65508b91d04fa5138fb9c313606a4ceade697072cb89843941f"}}, {"rule": 2, "type": "equivalent", "target": "4a55b4d9f252330dd0f0f94102631952", "evidence": {"same_day": true, "patch_ids": ["9c4aca692d373e760403997525c9e073", "ea0a783b3715942dc32c661399220cb1"], "statement_hash": "41c4e79daa1ea65508b91d04fa5138fb9c313606a4ceade697072cb89843941f"}}, {"rule": 2, "type": "equivalent", "target": "b48c4a1b729ca10627402a86238f5a19", "evidence": {"same_day": true, "patch_ids": ["9c4aca692d373e760403997525c9e073", "ea0a783b3715942dc32c661399220cb1"], "statement_hash": "41c4e79daa1ea65508b91d04fa5138fb9c313606a4ceade697072cb89843941f"}}, {"rule": 2, "type": "equivalent", "target": "bea7e191e30a8a238690f6d536666b13", "evidence": {"same_day": true, "patch_ids": ["9c4aca692d373e760403997525c9e073", "ea0a783b3715942dc32c661399220cb1"], "statement_hash": "41c4e79daa1ea65508b91d04fa5138fb9c313606a4ceade697072cb89843941f"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "4a55b4d9f252330dd0f0f94102631952", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复多处错误地假定无需处理超过 FUNC_MAX_ARGS 个函数参数的问题", "evidence": {"same_day": true, "patch_ids": ["9c4aca692d373e760403997525c9e073", "ea0a783b3715942dc32c661399220cb1"], "statement_hash": "41c4e79daa1ea65508b91d04fa5138fb9c313606a4ceade697072cb89843941f"}, "url": "/docs/compare/?release=18.6#18.6-fe89a6f688a29e60", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "bea7e191e30a8a238690f6d536666b13", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复多处错误地假定无需处理超过 FUNC_MAX_ARGS 个函数参数的问题", "evidence": {"same_day": true, "patch_ids": ["9c4aca692d373e760403997525c9e073", "ea0a783b3715942dc32c661399220cb1"], "statement_hash": "41c4e79daa1ea65508b91d04fa5138fb9c313606a4ceade697072cb89843941f"}, "url": "/docs/compare/?release=16.15#16.15-4e4499530e41620f", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "41c6f110168cdb7324811a04a2654cf2", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复多处错误地假定无需处理超过 FUNC_MAX_ARGS 个函数参数的问题", "evidence": {"same_day": true, "patch_ids": ["9c4aca692d373e760403997525c9e073", "ea0a783b3715942dc32c661399220cb1"], "statement_hash": "41c4e79daa1ea65508b91d04fa5138fb9c313606a4ceade697072cb89843941f"}, "url": "/docs/compare/?release=15.19#15.19-a19bdbedae40aee8", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "b48c4a1b729ca10627402a86238f5a19", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复多处错误地假定无需处理超过 FUNC_MAX_ARGS 个函数参数的问题", "evidence": {"same_day": true, "patch_ids": ["9c4aca692d373e760403997525c9e073", "ea0a783b3715942dc32c661399220cb1"], "statement_hash": "41c4e79daa1ea65508b91d04fa5138fb9c313606a4ceade697072cb89843941f"}, "url": "/docs/compare/?release=14.24#14.24-573a25e391fc116a", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-ea70ef62a58da283", "cves": ["CVE-2026-14680"], "html": "拒绝从 SQL 调用接受或返回 internal 类型的函数（Tom Lane）§ §
现有防护已被证明不足，因此添加更明确的检查。
\nPostgreSQL 项目感谢 Amy Burnett（OpenAI Codex Security）报告此问题。（CVE-2026-14680）
", "text": "拒绝从 SQL 调用接受或返回 internal 类型的函数（Tom Lane）§ § 现有防护已被证明不足，因此添加更明确的检查。 PostgreSQL 项目感谢 Amy Burnett（OpenAI Codex Security）报告此问题。（CVE-2026-14680）", "title": "拒绝从 SQL 调用接受或返回 internal 类型的函数", "commits": ["83d0a083f", "eb9e55297"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "ae4171aaf8d9bbcd124f261add6cee148e157d2e18be17150cce5df8f8e0a3d0", "section_path": ["变更"], "commit_groups": [["155dacbc5", "21a00de43", "4c0c1b2cd", "54649de65", "8f7e35b08", "e926a9aac", "eb9e55297"], ["1aa601b4f", "21d8cfb18", "722695db1", "7f308dd7c", "83d0a083f", "913fe0c31", "d6e861e19"]], "identity_text": "Reject calls from SQL to functions that take or return type internal (Tom Lane) The existing defenses against doing this have been shown to be insufficient, so add more explicit checks. The PostgreSQL Project thanks Amy Burnett (OpenAI Codex Security) for reporting this problem. (CVE-2026-14680)", "commit_aliases": ["155dacbc5", "1aa601b4f", "21a00de43", "21d8cfb18", "4c0c1b2cd", "54649de65", "722695db1", "7f308dd7c", "83d0a083f", "8f7e35b08", "913fe0c31", "d6e861e19", "e926a9aac", "eb9e55297"], "source_commits": ["83d0a083f", "eb9e55297"], "source_entry_id": "17.11/changes/012", "db_id": "42aa2e3353b4536c48a5271f47f0eb90", "patch_ids": ["8b623dad3bf883bcb9bd41023fc8f168", "b94f9935e7be4a2be88c49eae8a6ae70"], "statement_hash": "713f97bceae2187dec2f42b397097077fb7eec20b6eddb9a6fb32f8878d44f9f", "relations": [{"rule": 2, "type": "equivalent", "target": "02bb5a11139923dd7f170a94556495c3", "evidence": {"same_day": true, "patch_ids": ["8b623dad3bf883bcb9bd41023fc8f168", "b94f9935e7be4a2be88c49eae8a6ae70"], "statement_hash": "713f97bceae2187dec2f42b397097077fb7eec20b6eddb9a6fb32f8878d44f9f"}}, {"rule": 2, "type": "equivalent", "target": "97ff2029068cd51a1802927b5b54f2d3", "evidence": {"same_day": true, "patch_ids": ["8b623dad3bf883bcb9bd41023fc8f168", "b94f9935e7be4a2be88c49eae8a6ae70"], "statement_hash": "713f97bceae2187dec2f42b397097077fb7eec20b6eddb9a6fb32f8878d44f9f"}}, {"rule": 2, "type": "equivalent", "target": "b56373871b3aaa929aaba36a65e4eb45", "evidence": {"same_day": true, "patch_ids": ["8b623dad3bf883bcb9bd41023fc8f168", "b94f9935e7be4a2be88c49eae8a6ae70"], "statement_hash": "713f97bceae2187dec2f42b397097077fb7eec20b6eddb9a6fb32f8878d44f9f"}}, {"rule": 2, "type": "equivalent", "target": "e54c1abdbc2feb1d5c81f31cc4a073f8", "evidence": {"same_day": true, "patch_ids": ["8b623dad3bf883bcb9bd41023fc8f168", "b94f9935e7be4a2be88c49eae8a6ae70"], "statement_hash": "713f97bceae2187dec2f42b397097077fb7eec20b6eddb9a6fb32f8878d44f9f"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "02bb5a11139923dd7f170a94556495c3", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "拒绝从 SQL 调用接受或返回 internal 类型的函数", "evidence": {"same_day": true, "patch_ids": ["8b623dad3bf883bcb9bd41023fc8f168", "b94f9935e7be4a2be88c49eae8a6ae70"], "statement_hash": "713f97bceae2187dec2f42b397097077fb7eec20b6eddb9a6fb32f8878d44f9f"}, "url": "/docs/compare/?release=18.6#18.6-a8d1f97d70d85295", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "e54c1abdbc2feb1d5c81f31cc4a073f8", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "拒绝从 SQL 调用接受或返回 internal 类型的函数", "evidence": {"same_day": true, "patch_ids": ["8b623dad3bf883bcb9bd41023fc8f168", "b94f9935e7be4a2be88c49eae8a6ae70"], "statement_hash": "713f97bceae2187dec2f42b397097077fb7eec20b6eddb9a6fb32f8878d44f9f"}, "url": "/docs/compare/?release=16.15#16.15-34c662185f18a805", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "97ff2029068cd51a1802927b5b54f2d3", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "拒绝从 SQL 调用接受或返回 internal 类型的函数", "evidence": {"same_day": true, "patch_ids": ["8b623dad3bf883bcb9bd41023fc8f168", "b94f9935e7be4a2be88c49eae8a6ae70"], "statement_hash": "713f97bceae2187dec2f42b397097077fb7eec20b6eddb9a6fb32f8878d44f9f"}, "url": "/docs/compare/?release=15.19#15.19-945b15baee4c22d6", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "b56373871b3aaa929aaba36a65e4eb45", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "拒绝从 SQL 调用接受或返回 internal 类型的函数", "evidence": {"same_day": true, "patch_ids": ["8b623dad3bf883bcb9bd41023fc8f168", "b94f9935e7be4a2be88c49eae8a6ae70"], "statement_hash": "713f97bceae2187dec2f42b397097077fb7eec20b6eddb9a6fb32f8878d44f9f"}, "url": "/docs/compare/?release=14.24#14.24-d4901f423633ca69", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-50a00c5a01592c04", "cves": ["CVE-2026-6469"], "html": "在 ALTER TABLE 重建扩展统计信息对象时保留其所有权（Masahiko Sawada）§
此前，执行 ALTER TABLE 的角色会取得这类对象的所有权，这并不合适。
PostgreSQL 项目感谢 Noah Misch 报告此问题。（CVE-2026-6469）
", "text": "在 ALTER TABLE 重建扩展统计信息对象时保留其所有权（Masahiko Sawada）§ 此前，执行 ALTER TABLE 的角色会取得这类对象的所有权，这并不合适。 PostgreSQL 项目感谢 Noah Misch 报告此问题。（CVE-2026-6469）", "title": "在 ALTER TABLE 重建扩展统计信息对象时保留其所有权", "commits": ["75a03c569"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "b343ca503a0d824e36e767e15a33bd5faea3c4e58b41fa64d84f9b10e771142d", "section_path": ["变更"], "commit_groups": [["6713a6e04", "70a3b4e18", "75a03c569", "7c3367ab5", "93b93f28f", "a1fa24127", "fb6d1ca8d"]], "identity_text": "Preserve the ownership of extended statistics objects when they are rebuilt by ALTER TABLE (Masahiko Sawada) Previously, the role running ALTER TABLE gained ownership of such objects, but that seems inappropriate. The PostgreSQL Project thanks Noah Misch for reporting this problem. (CVE-2026-6469)", "commit_aliases": ["6713a6e04", "70a3b4e18", "75a03c569", "7c3367ab5", "93b93f28f", "a1fa24127", "fb6d1ca8d"], "source_commits": ["75a03c569"], "source_entry_id": "17.11/changes/013", "db_id": "a511c71fb1c56e7bba21699bf176d02f", "patch_ids": ["c847f131eaad282f5fa724ff040f1fc2"], "statement_hash": "855872db5602ac9ec63e8c9b362b906eef0f29c2ae3da9a0473220149fc815a6", "relations": [{"rule": 2, "type": "equivalent", "target": "4ce18d2a1cf23ef6c7ff55c667d59eae", "evidence": {"same_day": true, "patch_ids": ["c847f131eaad282f5fa724ff040f1fc2"], "statement_hash": "855872db5602ac9ec63e8c9b362b906eef0f29c2ae3da9a0473220149fc815a6"}}, {"rule": 2, "type": "equivalent", "target": "a45d7275fb35413aaeeb017f13dfbf83", "evidence": {"same_day": true, "patch_ids": ["c847f131eaad282f5fa724ff040f1fc2"], "statement_hash": "855872db5602ac9ec63e8c9b362b906eef0f29c2ae3da9a0473220149fc815a6"}}, {"rule": 2, "type": "equivalent", "target": "ddb05610c858789527b1369d30b4bb1c", "evidence": {"same_day": true, "patch_ids": ["c847f131eaad282f5fa724ff040f1fc2"], "statement_hash": "855872db5602ac9ec63e8c9b362b906eef0f29c2ae3da9a0473220149fc815a6"}}, {"rule": 2, "type": "equivalent", "target": "f73abeba4ef827229ec4b724b2dbde1b", "evidence": {"same_day": true, "patch_ids": ["c847f131eaad282f5fa724ff040f1fc2"], "statement_hash": "855872db5602ac9ec63e8c9b362b906eef0f29c2ae3da9a0473220149fc815a6"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "4ce18d2a1cf23ef6c7ff55c667d59eae", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "在 ALTER TABLE 重建扩展统计信息对象时保留其所有权", "evidence": {"same_day": true, "patch_ids": ["c847f131eaad282f5fa724ff040f1fc2"], "statement_hash": "855872db5602ac9ec63e8c9b362b906eef0f29c2ae3da9a0473220149fc815a6"}, "url": "/docs/compare/?release=18.6#18.6-c42539c16ee68f2f", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "a45d7275fb35413aaeeb017f13dfbf83", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "在 ALTER TABLE 重建扩展统计信息对象时保留其所有权", "evidence": {"same_day": true, "patch_ids": ["c847f131eaad282f5fa724ff040f1fc2"], "statement_hash": "855872db5602ac9ec63e8c9b362b906eef0f29c2ae3da9a0473220149fc815a6"}, "url": "/docs/compare/?release=16.15#16.15-e8ff71640bff6e1b", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "ddb05610c858789527b1369d30b4bb1c", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "在 ALTER TABLE 重建扩展统计信息对象时保留其所有权", "evidence": {"same_day": true, "patch_ids": ["c847f131eaad282f5fa724ff040f1fc2"], "statement_hash": "855872db5602ac9ec63e8c9b362b906eef0f29c2ae3da9a0473220149fc815a6"}, "url": "/docs/compare/?release=15.19#15.19-b4f58a948680ef82", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "f73abeba4ef827229ec4b724b2dbde1b", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "在 ALTER TABLE 重建扩展统计信息对象时保留其所有权", "evidence": {"same_day": true, "patch_ids": ["c847f131eaad282f5fa724ff040f1fc2"], "statement_hash": "855872db5602ac9ec63e8c9b362b906eef0f29c2ae3da9a0473220149fc815a6"}, "url": "/docs/compare/?release=14.24#14.24-dd4b41945f77ff4b", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-2bafbd49437d6dde", "cves": ["CVE-2026-15741"], "html": "逆解析 EXTRACT() 函数调用时，按需为字段名加引号（Nathan Bossart）§
解析器接受 EXTRACT() 中的任意字符串字面量作为字段名，并将验证推迟到执行阶段。如果该调用被存储后再逆解析（例如在 pg_dump 期间），字符串正文会被原样输出，从而造成 SQL 注入。
PostgreSQL 项目感谢 Ben Morris（与 Claude 和 Anthropic Research 协作）报告此问题。（CVE-2026-15741）
", "text": "逆解析 EXTRACT() 函数调用时，按需为字段名加引号（Nathan Bossart）§ 解析器接受 EXTRACT() 中的任意字符串字面量作为字段名，并将验证推迟到执行阶段。如果该调用被存储后再逆解析（例如在 pg_dump 期间），字符串正文会被原样输出，从而造成 SQL 注入。 PostgreSQL 项目感谢 Ben Morris（与 Claude 和 Anthropic Research 协作）报告此问题。（CVE-2026-15741）", "title": "逆解析 EXTRACT() 函数调用时，按需为字段名加引号", "commits": ["5981fe370"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "d70a69903555490b6f656724c94b3a0adbc04a328180d90cacd3913e5c170033", "section_path": ["变更"], "commit_groups": [["0ddd9098a", "44ea6764b", "5981fe370", "5e5ea74e3", "967acab87", "a3832a757", "f9729b507"]], "identity_text": "When deparsing an EXTRACT() function call, quote the field name if needed (Nathan Bossart) The parser accepts any string literal as a field name in EXTRACT(), deferring validation to execution. If the call is stored and deparsed (for example during pg_dump), the string body was regurgitated verbatim, allowing SQL injection. The PostgreSQL Project thanks Ben Morris (in collaboration with Claude and Anthropic Research) for reporting this problem. (CVE-2026-15741)", "commit_aliases": ["0ddd9098a", "44ea6764b", "5981fe370", "5e5ea74e3", "967acab87", "a3832a757", "f9729b507"], "source_commits": ["5981fe370"], "source_entry_id": "17.11/changes/014", "db_id": "9677e1d0e314b1250191bf908cc27099", "patch_ids": ["f0b1d31c8ffb5349b650b0e3b88706ad"], "statement_hash": "8fb62033eeb6ede7911fce4b990d20a94bf88226d146867552627bcce9f533ef", "relations": [{"rule": 2, "type": "equivalent", "target": "0b6c8ce7fe6e116e2bb99be5e53dff29", "evidence": {"same_day": true, "patch_ids": ["f0b1d31c8ffb5349b650b0e3b88706ad"], "statement_hash": "8fb62033eeb6ede7911fce4b990d20a94bf88226d146867552627bcce9f533ef"}}, {"rule": 2, "type": "equivalent", "target": "46e3e259f29471b862d3a1eeaae97525", "evidence": {"same_day": true, "patch_ids": ["f0b1d31c8ffb5349b650b0e3b88706ad"], "statement_hash": "8fb62033eeb6ede7911fce4b990d20a94bf88226d146867552627bcce9f533ef"}}, {"rule": 2, "type": "equivalent", "target": "57a69063ff0b7f44b253f158536bbc64", "evidence": {"same_day": true, "patch_ids": ["f0b1d31c8ffb5349b650b0e3b88706ad"], "statement_hash": "8fb62033eeb6ede7911fce4b990d20a94bf88226d146867552627bcce9f533ef"}}, {"rule": 2, "type": "equivalent", "target": "7c6c8c33a06891c077c2444b81e229fb", "evidence": {"same_day": true, "patch_ids": ["f0b1d31c8ffb5349b650b0e3b88706ad"], "statement_hash": "8fb62033eeb6ede7911fce4b990d20a94bf88226d146867552627bcce9f533ef"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "57a69063ff0b7f44b253f158536bbc64", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "逆解析 EXTRACT() 函数调用时，按需为字段名加引号", "evidence": {"same_day": true, "patch_ids": ["f0b1d31c8ffb5349b650b0e3b88706ad"], "statement_hash": "8fb62033eeb6ede7911fce4b990d20a94bf88226d146867552627bcce9f533ef"}, "url": "/docs/compare/?release=18.6#18.6-323a1fc7b03b6859", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "46e3e259f29471b862d3a1eeaae97525", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "逆解析 EXTRACT() 函数调用时，按需为字段名加引号", "evidence": {"same_day": true, "patch_ids": ["f0b1d31c8ffb5349b650b0e3b88706ad"], "statement_hash": "8fb62033eeb6ede7911fce4b990d20a94bf88226d146867552627bcce9f533ef"}, "url": "/docs/compare/?release=16.15#16.15-b95737c58db91b67", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "0b6c8ce7fe6e116e2bb99be5e53dff29", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "逆解析 EXTRACT() 函数调用时，按需为字段名加引号", "evidence": {"same_day": true, "patch_ids": ["f0b1d31c8ffb5349b650b0e3b88706ad"], "statement_hash": "8fb62033eeb6ede7911fce4b990d20a94bf88226d146867552627bcce9f533ef"}, "url": "/docs/compare/?release=15.19#15.19-a14e35e1025f9ddc", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "7c6c8c33a06891c077c2444b81e229fb", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "逆解析 EXTRACT() 函数调用时，按需为字段名加引号", "evidence": {"same_day": true, "patch_ids": ["f0b1d31c8ffb5349b650b0e3b88706ad"], "statement_hash": "8fb62033eeb6ede7911fce4b990d20a94bf88226d146867552627bcce9f533ef"}, "url": "/docs/compare/?release=14.24#14.24-6222e3f0de511b22", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-575634f97737603c", "cves": ["CVE-2026-6470"], "html": "在此前漏检的场景中检查数据类型的 USAGE 权限（Nathan Bossart）§ § §
CREATE TYPE AS RANGE、ALTER TABLE OF 以及创建存储表达式的命令此前都没有执行这一检查。这些遗漏使没有 USAGE 权限的角色仍能创建依赖该类型的对象，并可能阻止类型所有者日后更改该类型。
PostgreSQL 项目感谢 Jingzhou Fu 报告此问题。（CVE-2026-6470）
", "text": "在此前漏检的场景中检查数据类型的 USAGE 权限（Nathan Bossart）§ § § CREATE TYPE AS RANGE、ALTER TABLE OF 以及创建存储表达式的命令此前都没有执行这一检查。这些遗漏使没有 USAGE 权限的角色仍能创建依赖该类型的对象，并可能阻止类型所有者日后更改该类型。 PostgreSQL 项目感谢 Jingzhou Fu 报告此问题。（CVE-2026-6470）", "title": "在此前漏检的场景中检查数据类型的 USAGE 权限", "commits": ["671359605", "d1c8aa0b0", "fd6d3e7e9"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "c9caf2b030187d7cd06db477690c1a9948b3cc6e98cb1da81afc68603aea8eb1", "section_path": ["变更"], "commit_groups": [["1a358b8f2", "278053843", "424fb7160", "4fac4c108", "6dbedd48b", "7ce056b17", "d1c8aa0b0"], ["24855357c", "2e91f8548", "323af0a4e", "97e277402", "a9f6e768a", "efdb26072", "fd6d3e7e9"], ["53ed5ebd8", "57f59ca1d", "671359605", "7a761fe40", "b6e45b4f8", "bb1bc525d", "c062734cd"]], "identity_text": "Check for USAGE privilege on data types in places that formerly failed to check that (Nathan Bossart) CREATE TYPE AS RANGE did not check, nor did ALTER TABLE OF, nor did commands that create stored expressions. These omissions allowed roles without USAGE privilege to nonetheless create objects depending on the type, possibly blocking the type's owner from changing the type later. The PostgreSQL Project thanks Jingzhou Fu for reporting this problem. (CVE-2026-6470)", "commit_aliases": ["1a358b8f2", "24855357c", "278053843", "2e91f8548", "323af0a4e", "424fb7160", "4fac4c108", "53ed5ebd8", "57f59ca1d", "671359605", "6dbedd48b", "7a761fe40", "7ce056b17", "97e277402", "a9f6e768a", "b6e45b4f8", "bb1bc525d", "c062734cd", "d1c8aa0b0", "efdb26072", "fd6d3e7e9"], "source_commits": ["671359605", "d1c8aa0b0", "fd6d3e7e9"], "source_entry_id": "17.11/changes/015", "db_id": "e50027af5564cb33c0ec80ab0f86e1a9", "patch_ids": ["2470df146b9201b14de19f772c90d867", "2de75ceea92e216f0b0f3ec035342d7e", "76d1b8b6ad0cee83e43cc4a88d123867"], "statement_hash": "f6ec51b2de1a066951596511e998a5e51ac29a83e3c8e018df4d6e981ebe7068", "relations": [{"rule": 2, "type": "equivalent", "target": "56232d6e6345f5c09340b72ed581eb4d", "evidence": {"same_day": true, "patch_ids": ["2470df146b9201b14de19f772c90d867", "2de75ceea92e216f0b0f3ec035342d7e", "76d1b8b6ad0cee83e43cc4a88d123867"], "statement_hash": "f6ec51b2de1a066951596511e998a5e51ac29a83e3c8e018df4d6e981ebe7068"}}, {"rule": 2, "type": "equivalent", "target": "8c93b6ddad829461b98126755a87488f", "evidence": {"same_day": true, "patch_ids": ["2470df146b9201b14de19f772c90d867", "2de75ceea92e216f0b0f3ec035342d7e", "76d1b8b6ad0cee83e43cc4a88d123867"], "statement_hash": "f6ec51b2de1a066951596511e998a5e51ac29a83e3c8e018df4d6e981ebe7068"}}, {"rule": 2, "type": "equivalent", "target": "f2f63cd272a4e4c0c968eacb6779415b", "evidence": {"same_day": true, "patch_ids": ["2470df146b9201b14de19f772c90d867", "2de75ceea92e216f0b0f3ec035342d7e", "76d1b8b6ad0cee83e43cc4a88d123867"], "statement_hash": "f6ec51b2de1a066951596511e998a5e51ac29a83e3c8e018df4d6e981ebe7068"}}, {"rule": 2, "type": "equivalent", "target": "f44708d4a1d626e3b8656335ae598c69", "evidence": {"same_day": true, "patch_ids": ["2470df146b9201b14de19f772c90d867", "2de75ceea92e216f0b0f3ec035342d7e", "76d1b8b6ad0cee83e43cc4a88d123867"], "statement_hash": "f6ec51b2de1a066951596511e998a5e51ac29a83e3c8e018df4d6e981ebe7068"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "56232d6e6345f5c09340b72ed581eb4d", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "在此前漏检的场景中检查数据类型的 USAGE 权限", "evidence": {"same_day": true, "patch_ids": ["2470df146b9201b14de19f772c90d867", "2de75ceea92e216f0b0f3ec035342d7e", "76d1b8b6ad0cee83e43cc4a88d123867"], "statement_hash": "f6ec51b2de1a066951596511e998a5e51ac29a83e3c8e018df4d6e981ebe7068"}, "url": "/docs/compare/?release=18.6#18.6-0b5cda175039a2c3", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "f2f63cd272a4e4c0c968eacb6779415b", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "在此前漏检的场景中检查数据类型的 USAGE 权限", "evidence": {"same_day": true, "patch_ids": ["2470df146b9201b14de19f772c90d867", "2de75ceea92e216f0b0f3ec035342d7e", "76d1b8b6ad0cee83e43cc4a88d123867"], "statement_hash": "f6ec51b2de1a066951596511e998a5e51ac29a83e3c8e018df4d6e981ebe7068"}, "url": "/docs/compare/?release=16.15#16.15-0bb6468faf69c61b", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "8c93b6ddad829461b98126755a87488f", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "在此前漏检的场景中检查数据类型的 USAGE 权限", "evidence": {"same_day": true, "patch_ids": ["2470df146b9201b14de19f772c90d867", "2de75ceea92e216f0b0f3ec035342d7e", "76d1b8b6ad0cee83e43cc4a88d123867"], "statement_hash": "f6ec51b2de1a066951596511e998a5e51ac29a83e3c8e018df4d6e981ebe7068"}, "url": "/docs/compare/?release=15.19#15.19-680192fcb0e07883", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "f44708d4a1d626e3b8656335ae598c69", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "在此前漏检的场景中检查数据类型的 USAGE 权限", "evidence": {"same_day": true, "patch_ids": ["2470df146b9201b14de19f772c90d867", "2de75ceea92e216f0b0f3ec035342d7e", "76d1b8b6ad0cee83e43cc4a88d123867"], "statement_hash": "f6ec51b2de1a066951596511e998a5e51ac29a83e3c8e018df4d6e981ebe7068"}, "url": "/docs/compare/?release=14.24#14.24-045d18982c440e91", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-43977a837123cada", "cves": ["CVE-2026-14666"], "html": "角色发生变更后使依赖角色的缓存计划失效（Ilya Staroverov、Shinya Kato、Nathan Bossart）§
\n角色成员关系、角色属性和数据库所有权的变更可能影响行级安全策略的预期行为，但此前系统仍会继续使用按旧状态生成的缓存计划。
\nPostgreSQL 项目感谢 Ilya Staroverov 和 Shinya Kato 报告此问题。（CVE-2026-14666）
", "text": "角色发生变更后使依赖角色的缓存计划失效（Ilya Staroverov、Shinya Kato、Nathan Bossart）§ 角色成员关系、角色属性和数据库所有权的变更可能影响行级安全策略的预期行为，但此前系统仍会继续使用按旧状态生成的缓存计划。 PostgreSQL 项目感谢 Ilya Staroverov 和 Shinya Kato 报告此问题。（CVE-2026-14666）", "title": "角色发生变更后使依赖角色的缓存计划失效", "commits": ["1974acf23"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "db95b8767b3fdb62db67d479cf3d6de2dfd9db45e0c156d1ccffa4b66d024f0b", "section_path": ["变更"], "commit_groups": [["0b12f56bf", "17b6083db", "1974acf23", "567286b76", "f4174aa84", "f5f2da795", "ffca23839"]], "identity_text": "Invalidate role-dependent cached plans after role changes (Ilya Staroverov, Shinya Kato, Nathan Bossart) Role membership, role attribute, and database ownership changes may impact the expected behavior of row-level security policies, but previously we'd continue to use cached plans that were made according to the old state of affairs. The PostgreSQL Project thanks Ilya Staroverov and Shinya Kato for reporting this problem. (CVE-2026-14666)", "commit_aliases": ["0b12f56bf", "17b6083db", "1974acf23", "567286b76", "f4174aa84", "f5f2da795", "ffca23839"], "source_commits": ["1974acf23"], "source_entry_id": "17.11/changes/016", "db_id": "49941507efa272e723ff0698b2236a6e", "patch_ids": ["7a5d6580a542a5467ce64bfd9ad2b724"], "statement_hash": "b27f8aace3b388937c6e28c9f1ede652d42059e6b0a2111846c88a4b39769432", "relations": [{"rule": 2, "type": "equivalent", "target": "043b1e2a717a3c7862402faa9c4b1f91", "evidence": {"same_day": true, "patch_ids": ["7a5d6580a542a5467ce64bfd9ad2b724"], "statement_hash": "b27f8aace3b388937c6e28c9f1ede652d42059e6b0a2111846c88a4b39769432"}}, {"rule": 2, "type": "equivalent", "target": "0e200ae2afa3db031ffa07314f2deab2", "evidence": {"same_day": true, "patch_ids": ["7a5d6580a542a5467ce64bfd9ad2b724"], "statement_hash": "b27f8aace3b388937c6e28c9f1ede652d42059e6b0a2111846c88a4b39769432"}}, {"rule": 2, "type": "equivalent", "target": "652fbbbd4aff8c1d5babff0cde01bc7f", "evidence": {"same_day": true, "patch_ids": ["7a5d6580a542a5467ce64bfd9ad2b724"], "statement_hash": "b27f8aace3b388937c6e28c9f1ede652d42059e6b0a2111846c88a4b39769432"}}, {"rule": 2, "type": "equivalent", "target": "c1425f2f64ac014a0d5ac494fbe66faf", "evidence": {"same_day": true, "patch_ids": ["7a5d6580a542a5467ce64bfd9ad2b724"], "statement_hash": "b27f8aace3b388937c6e28c9f1ede652d42059e6b0a2111846c88a4b39769432"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "0e200ae2afa3db031ffa07314f2deab2", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "角色发生变更后使依赖角色的缓存计划失效", "evidence": {"same_day": true, "patch_ids": ["7a5d6580a542a5467ce64bfd9ad2b724"], "statement_hash": "b27f8aace3b388937c6e28c9f1ede652d42059e6b0a2111846c88a4b39769432"}, "url": "/docs/compare/?release=18.6#18.6-ad01030c7fc964f1", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "c1425f2f64ac014a0d5ac494fbe66faf", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "角色发生变更后使依赖角色的缓存计划失效", "evidence": {"same_day": true, "patch_ids": ["7a5d6580a542a5467ce64bfd9ad2b724"], "statement_hash": "b27f8aace3b388937c6e28c9f1ede652d42059e6b0a2111846c88a4b39769432"}, "url": "/docs/compare/?release=16.15#16.15-c1ecfb608aa3193c", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "652fbbbd4aff8c1d5babff0cde01bc7f", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "角色发生变更后使依赖角色的缓存计划失效", "evidence": {"same_day": true, "patch_ids": ["7a5d6580a542a5467ce64bfd9ad2b724"], "statement_hash": "b27f8aace3b388937c6e28c9f1ede652d42059e6b0a2111846c88a4b39769432"}, "url": "/docs/compare/?release=15.19#15.19-90c7239f7a1b81bc", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "043b1e2a717a3c7862402faa9c4b1f91", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "角色发生变更后使依赖角色的缓存计划失效", "evidence": {"same_day": true, "patch_ids": ["7a5d6580a542a5467ce64bfd9ad2b724"], "statement_hash": "b27f8aace3b388937c6e28c9f1ede652d42059e6b0a2111846c88a4b39769432"}, "url": "/docs/compare/?release=14.24#14.24-6987bc0045f3c2c5", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-1d103f53312d0305", "cves": ["CVE-2026-14681"], "html": "在直接 SSL 连接之后拒绝 GSSEncRequest（Michael Paquier）§
\n建立 TLS 加密连接后，服务器仍会接受 GSSAPI 加密请求。如果请求成功，连接仍会使用 TLS 加密，但在 pg_hba 规则看来却像 GSS 连接。因此，意图禁止 TLS 的 pg_hba 策略无法得到正确执行。
PostgreSQL 项目感谢 p4p3r 报告此问题。（CVE-2026-14681）
", "text": "在直接 SSL 连接之后拒绝 GSSEncRequest（Michael Paquier）§ 建立 TLS 加密连接后，服务器仍会接受 GSSAPI 加密请求。如果请求成功，连接仍会使用 TLS 加密，但在 pg_hba 规则看来却像 GSS 连接。因此，意图禁止 TLS 的 pg_hba 策略无法得到正确执行。 PostgreSQL 项目感谢 p4p3r 报告此问题。（CVE-2026-14681）", "title": "在直接 SSL 连接之后拒绝 GSSEncRequest", "commits": ["067a64d40"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "7dfebd0245b93195f1e31d3f04137c86b77a8c717e793ea8b7a75b2589d79c08", "section_path": ["变更"], "commit_groups": [["067a64d40", "203a48209", "3bf185b4b", "bf1bb7e29"]], "identity_text": "Reject GSSEncRequest after direct SSL connection (Michael Paquier) After establishing a TLS-encrypted connection, the server would still accept a request for GSSAPI encryption. If that succeeded, the connection would proceed using TLS encryption, but it would look like a GSS connection to the pg_hba rules. Thus, a pg_hba policy intending to disallow TLS would not be enforced correctly. The PostgreSQL Project thanks p4p3r for reporting this problem. (CVE-2026-14681)", "commit_aliases": ["067a64d40", "203a48209", "3bf185b4b", "bf1bb7e29"], "source_commits": ["067a64d40"], "source_entry_id": "17.11/changes/017", "db_id": "55da165c3ced2d17689a546cd13a10f8", "patch_ids": ["0a86d0c924c70e8b47408f823a77a964"], "statement_hash": "f08040a4f6b5dfe94a4b30090677fd13c199828e108149421fa23eaa60d5f620", "relations": [{"rule": 2, "type": "equivalent", "target": "bdd453999af206604b4ae0c623733bc5", "evidence": {"same_day": true, "patch_ids": ["0a86d0c924c70e8b47408f823a77a964"], "statement_hash": "f08040a4f6b5dfe94a4b30090677fd13c199828e108149421fa23eaa60d5f620"}}, {"rule": 2, "type": "equivalent", "target": "deae128594614e84894b8e7a7062759f", "evidence": {"same_day": true, "patch_ids": ["0a86d0c924c70e8b47408f823a77a964"], "statement_hash": "f08040a4f6b5dfe94a4b30090677fd13c199828e108149421fa23eaa60d5f620"}}, {"rule": 2, "type": "equivalent", "target": "efca948aece74421d5dff07ca459356e", "evidence": {"same_day": true, "patch_ids": ["0a86d0c924c70e8b47408f823a77a964"], "statement_hash": "f08040a4f6b5dfe94a4b30090677fd13c199828e108149421fa23eaa60d5f620"}}, {"rule": 2, "type": "equivalent", "target": "fae551c24851f8412783e17b85987136", "evidence": {"same_day": true, "patch_ids": ["0a86d0c924c70e8b47408f823a77a964"], "statement_hash": "f08040a4f6b5dfe94a4b30090677fd13c199828e108149421fa23eaa60d5f620"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "deae128594614e84894b8e7a7062759f", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "在直接 SSL 连接之后拒绝 GSSEncRequest", "evidence": {"same_day": true, "patch_ids": ["0a86d0c924c70e8b47408f823a77a964"], "statement_hash": "f08040a4f6b5dfe94a4b30090677fd13c199828e108149421fa23eaa60d5f620"}, "url": "/docs/compare/?release=18.6#18.6-ed40b113af1a65e3", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "fae551c24851f8412783e17b85987136", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "在直接 SSL 连接之后拒绝 GSSEncRequest", "evidence": {"same_day": true, "patch_ids": ["0a86d0c924c70e8b47408f823a77a964"], "statement_hash": "f08040a4f6b5dfe94a4b30090677fd13c199828e108149421fa23eaa60d5f620"}, "url": "/docs/compare/?release=16.15#16.15-f7c6e475d2ee5cf0", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "bdd453999af206604b4ae0c623733bc5", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "在直接 SSL 连接之后拒绝 GSSEncRequest", "evidence": {"same_day": true, "patch_ids": ["0a86d0c924c70e8b47408f823a77a964"], "statement_hash": "f08040a4f6b5dfe94a4b30090677fd13c199828e108149421fa23eaa60d5f620"}, "url": "/docs/compare/?release=15.19#15.19-f7c6e475d2ee5cf0", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "efca948aece74421d5dff07ca459356e", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "在直接 SSL 连接之后拒绝 GSSEncRequest", "evidence": {"same_day": true, "patch_ids": ["0a86d0c924c70e8b47408f823a77a964"], "statement_hash": "f08040a4f6b5dfe94a4b30090677fd13c199828e108149421fa23eaa60d5f620"}, "url": "/docs/compare/?release=14.24#14.24-f7c6e475d2ee5cf0", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-f319d2c2bdee8718", "cves": ["CVE-2026-14672"], "html": "让模拟的 SCRAM secret 更可信（Nathan Bossart）§
\n如果尝试以 SCRAM 登录不存在或没有 SCRAM secret 的角色，系统会生成一个模拟 secret 并照常执行认证握手，以免向攻击者泄露这些事实。但模拟 secret 使用固定的迭代次数，这本身可能形成可观察的响应差异。现改用配置设置 scram_iterations，使模拟 secret 更接近该安装中的真实 secret。
PostgreSQL 项目感谢 Radim Marek 报告此问题。（CVE-2026-14672）
", "text": "让模拟的 SCRAM secret 更可信（Nathan Bossart）§ 如果尝试以 SCRAM 登录不存在或没有 SCRAM secret 的角色，系统会生成一个模拟 secret 并照常执行认证握手，以免向攻击者泄露这些事实。但模拟 secret 使用固定的迭代次数，这本身可能形成可观察的响应差异。现改用配置设置 scram_iterations，使模拟 secret 更接近该安装中的真实 secret。 PostgreSQL 项目感谢 Radim Marek 报告此问题。（CVE-2026-14672）", "title": "让模拟的 SCRAM secret 更可信", "commits": ["dec60e8ad"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "e234a260ae93da3adc54bf5aeceed9efbd11cfe39b1ad1732f19eacd17d41e4e", "section_path": ["变更"], "commit_groups": [["4d192fa16", "822143c4d", "dec60e8ad", "fadbe882d", "feb8b0182"]], "identity_text": "Make mock SCRAM authentication secrets more plausible (Nathan Bossart) If a SCRAM login is attempted against a role that doesn't exist or doesn't have a SCRAM secret, we generate a mock secret and carry out the authentication handshake anyway, to avoid revealing these facts to an attacker. But the mock secret was made with a fixed iteration count, which in itself can be an observable response discrepancy. Use the configuration setting scram_iterations instead, to make the mock secret look more like the installation's real secrets. The PostgreSQL Project thanks Radim Marek for reporting this problem. (CVE-2026-14672)", "commit_aliases": ["4d192fa16", "822143c4d", "dec60e8ad", "fadbe882d", "feb8b0182"], "source_commits": ["dec60e8ad"], "source_entry_id": "17.11/changes/018", "db_id": "465da641b2ad8e32d9b3eff9044cfd21", "patch_ids": ["b915b0f76ef63e3fd030de3a5e4052c7"], "statement_hash": "76daff375fab06e676eed2c7ce655a806a67e546c22e89cce3f2506387c91178", "relations": [{"rule": 2, "type": "equivalent", "target": "0b4b5a7457f7fbba0ac49362d4205d94", "evidence": {"same_day": true, "patch_ids": ["b915b0f76ef63e3fd030de3a5e4052c7"], "statement_hash": "76daff375fab06e676eed2c7ce655a806a67e546c22e89cce3f2506387c91178"}}, {"rule": 2, "type": "equivalent", "target": "328f985aab0b40a393740fb418be993c", "evidence": {"same_day": true, "patch_ids": ["b915b0f76ef63e3fd030de3a5e4052c7"], "statement_hash": "76daff375fab06e676eed2c7ce655a806a67e546c22e89cce3f2506387c91178"}}, {"rule": 2, "type": "equivalent", "target": "360618cf2b5023ffb07258f47a407319", "evidence": {"same_day": true, "patch_ids": ["b915b0f76ef63e3fd030de3a5e4052c7"], "statement_hash": "76daff375fab06e676eed2c7ce655a806a67e546c22e89cce3f2506387c91178"}}, {"rule": 2, "type": "equivalent", "target": "adc5092861582d88d34f6a1b1124f2eb", "evidence": {"same_day": true, "patch_ids": ["b915b0f76ef63e3fd030de3a5e4052c7"], "statement_hash": "76daff375fab06e676eed2c7ce655a806a67e546c22e89cce3f2506387c91178"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "360618cf2b5023ffb07258f47a407319", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "让模拟的 SCRAM secret 更可信", "evidence": {"same_day": true, "patch_ids": ["b915b0f76ef63e3fd030de3a5e4052c7"], "statement_hash": "76daff375fab06e676eed2c7ce655a806a67e546c22e89cce3f2506387c91178"}, "url": "/docs/compare/?release=18.6#18.6-bb742148aa1ab70a", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "adc5092861582d88d34f6a1b1124f2eb", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "让模拟的 SCRAM secret 更可信", "evidence": {"same_day": true, "patch_ids": ["b915b0f76ef63e3fd030de3a5e4052c7"], "statement_hash": "76daff375fab06e676eed2c7ce655a806a67e546c22e89cce3f2506387c91178"}, "url": "/docs/compare/?release=16.15#16.15-7aa6af5006f81e6f", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "328f985aab0b40a393740fb418be993c", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "让模拟的 SCRAM secret 更可信", "evidence": {"same_day": true, "patch_ids": ["b915b0f76ef63e3fd030de3a5e4052c7"], "statement_hash": "76daff375fab06e676eed2c7ce655a806a67e546c22e89cce3f2506387c91178"}, "url": "/docs/compare/?release=15.19#15.19-e106429efa4365f8", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "0b4b5a7457f7fbba0ac49362d4205d94", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "让模拟的 SCRAM secret 更可信", "evidence": {"same_day": true, "patch_ids": ["b915b0f76ef63e3fd030de3a5e4052c7"], "statement_hash": "76daff375fab06e676eed2c7ce655a806a67e546c22e89cce3f2506387c91178"}, "url": "/docs/compare/?release=14.24#14.24-e106429efa4365f8", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-368d04431d80a7fd", "cves": ["CVE-2026-16241"], "html": "修复 ecpg 应用程序因接收服务器返回的无效 bytea 数据而发生的越界写入（Michael Paquier）§
ecpg 未经检查便假定任何 bytea 值都必须以 \\x 开头。有缺陷或恶意的服务器可能发送短于 2 字节的字符串，从而破坏应用程序内存。
PostgreSQL 项目感谢 ylwangtju 报告此问题。（CVE-2026-16241）
", "text": "修复 ecpg 应用程序因接收服务器返回的无效 bytea 数据而发生的越界写入（Michael Paquier）§ ecpg 未经检查便假定任何 bytea 值都必须以 \\x 开头。有缺陷或恶意的服务器可能发送短于 2 字节的字符串，从而破坏应用程序内存。 PostgreSQL 项目感谢 ylwangtju 报告此问题。（CVE-2026-16241）", "title": "修复 ecpg 应用程序因接收服务器返回的无效 bytea 数据而发生的越界写入", "commits": ["c3c830272"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "248ee77755f6e301b2165ca0643d1f7f5718db2fb844272d0a7d31fbfed01d01", "section_path": ["变更"], "commit_groups": [["39f855e0e", "457b8737a", "5737110b6", "74c59d062", "a14ba29b1", "c3c830272", "c7da85fec"]], "identity_text": "Fix out-of-bounds writes in ecpg applications caused by invalid bytea data received from the server (Michael Paquier) ecpg assumed without checking that any bytea value must begin with \\x. A broken or malicious server might send a string shorter than 2 bytes, resulting in memory clobber in the application. The PostgreSQL Project thanks ylwangtju for reporting this problem. (CVE-2026-16241)", "commit_aliases": ["39f855e0e", "457b8737a", "5737110b6", "74c59d062", "a14ba29b1", "c3c830272", "c7da85fec"], "source_commits": ["c3c830272"], "source_entry_id": "17.11/changes/019", "db_id": "4fb7c5910a0436ce3e2bb2ab88b25a87", "patch_ids": ["eda4e515c03b7210bd33a13cc191c754"], "statement_hash": "ef3db74c8b626f19d33ecc7d3b8e292c1e11cd1089b59edbc38f72bd729fe946", "relations": [{"rule": 2, "type": "equivalent", "target": "18aec69fea13406451ddcbd0d4c23a88", "evidence": {"same_day": true, "patch_ids": ["eda4e515c03b7210bd33a13cc191c754"], "statement_hash": "ef3db74c8b626f19d33ecc7d3b8e292c1e11cd1089b59edbc38f72bd729fe946"}}, {"rule": 2, "type": "equivalent", "target": "7393e9b24b9abe3400e3f04577d58cba", "evidence": {"same_day": true, "patch_ids": ["eda4e515c03b7210bd33a13cc191c754"], "statement_hash": "ef3db74c8b626f19d33ecc7d3b8e292c1e11cd1089b59edbc38f72bd729fe946"}}, {"rule": 2, "type": "equivalent", "target": "c7e226410c72dad9c39b76d880e2f2a5", "evidence": {"same_day": true, "patch_ids": ["eda4e515c03b7210bd33a13cc191c754"], "statement_hash": "ef3db74c8b626f19d33ecc7d3b8e292c1e11cd1089b59edbc38f72bd729fe946"}}, {"rule": 2, "type": "equivalent", "target": "f5473f236236eb170503879999034ecc", "evidence": {"same_day": true, "patch_ids": ["eda4e515c03b7210bd33a13cc191c754"], "statement_hash": "ef3db74c8b626f19d33ecc7d3b8e292c1e11cd1089b59edbc38f72bd729fe946"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "c7e226410c72dad9c39b76d880e2f2a5", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 ecpg 应用程序因接收服务器返回的无效 bytea 数据而发生的越界写入", "evidence": {"same_day": true, "patch_ids": ["eda4e515c03b7210bd33a13cc191c754"], "statement_hash": "ef3db74c8b626f19d33ecc7d3b8e292c1e11cd1089b59edbc38f72bd729fe946"}, "url": "/docs/compare/?release=18.6#18.6-2d9ddb6163eca29a", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "f5473f236236eb170503879999034ecc", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 ecpg 应用程序因接收服务器返回的无效 bytea 数据而发生的越界写入", "evidence": {"same_day": true, "patch_ids": ["eda4e515c03b7210bd33a13cc191c754"], "statement_hash": "ef3db74c8b626f19d33ecc7d3b8e292c1e11cd1089b59edbc38f72bd729fe946"}, "url": "/docs/compare/?release=16.15#16.15-e48a8391a0609721", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "18aec69fea13406451ddcbd0d4c23a88", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 ecpg 应用程序因接收服务器返回的无效 bytea 数据而发生的越界写入", "evidence": {"same_day": true, "patch_ids": ["eda4e515c03b7210bd33a13cc191c754"], "statement_hash": "ef3db74c8b626f19d33ecc7d3b8e292c1e11cd1089b59edbc38f72bd729fe946"}, "url": "/docs/compare/?release=15.19#15.19-8ab80940f2e8c31e", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "7393e9b24b9abe3400e3f04577d58cba", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 ecpg 应用程序因接收服务器返回的无效 bytea 数据而发生的越界写入", "evidence": {"same_day": true, "patch_ids": ["eda4e515c03b7210bd33a13cc191c754"], "statement_hash": "ef3db74c8b626f19d33ecc7d3b8e292c1e11cd1089b59edbc38f72bd729fe946"}, "url": "/docs/compare/?release=14.24#14.24-a12e893b89f31441", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-7f417b32587acff8", "cves": ["CVE-2025-8714", "CVE-2026-18408"], "html": "不要对 psql 的 \\unrestrict 命令参数执行反引号扩展（Nathan Bossart）§
CVE-2025-8714 修复中的这一疏漏，使恶意服务器能够把 shell 命令注入纯文本转储输出，并在恢复时于运行 psql 的机器上执行；这正是 CVE-2025-8714 意图防止的场景。
\nPostgreSQL 项目感谢 Lucas Velgus、Filip Janus 和 Daniel Bakker 报告此问题。（CVE-2026-18408）
", "text": "不要对 psql 的 \\unrestrict 命令参数执行反引号扩展（Nathan Bossart）§ CVE-2025-8714 修复中的这一疏漏，使恶意服务器能够把 shell 命令注入纯文本转储输出，并在恢复时于运行 psql 的机器上执行；这正是 CVE-2025-8714 意图防止的场景。 PostgreSQL 项目感谢 Lucas Velgus、Filip Janus 和 Daniel Bakker 报告此问题。（CVE-2026-18408）", "title": "不要对 psql 的 \\unrestrict 命令参数执行反引号扩展", "commits": ["0bfac9e1f"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "0fcd9304aa4a7758c0fbb2a24b5eb84dfe82f1d90a8751cebdcffe819d246f50", "section_path": ["变更"], "commit_groups": [["0119aa30e", "086f6f176", "0bfac9e1f", "2006fca40", "33d0c63fb", "71ca694c7", "df245c374"]], "identity_text": "Do not do backquote expansion on the argument of psql's \\unrestrict command (Nathan Bossart) This oversight in the fix for CVE-2025-8714 allows a malicious server to inject shell commands into plain-text dump output that will be run at restore time on the machine running psql, the exact scenario that CVE-2025-8714 intended to prevent. The PostgreSQL Project thanks Lucas Velgus, Filip Janus, and Daniel Bakker for reporting this problem. (CVE-2026-18408)", "commit_aliases": ["0119aa30e", "086f6f176", "0bfac9e1f", "2006fca40", "33d0c63fb", "71ca694c7", "df245c374"], "source_commits": ["0bfac9e1f"], "source_entry_id": "17.11/changes/020", "db_id": "56ffc2f53e9a050b5de71327d3cef06f", "patch_ids": ["061af71132ccdfb4f1bbeed893be595c"], "statement_hash": "3a14df9ccfd7372d3dac771a23f52e41c3376ea71cf1946e2c9e95f97d2b5d3b", "relations": [{"rule": 2, "type": "equivalent", "target": "36ccc2b6f4b04376dc6bf74ae3d2f6de", "evidence": {"same_day": true, "patch_ids": ["061af71132ccdfb4f1bbeed893be595c"], "statement_hash": "3a14df9ccfd7372d3dac771a23f52e41c3376ea71cf1946e2c9e95f97d2b5d3b"}}, {"rule": 2, "type": "equivalent", "target": "49dd1006826cb5f529df97b64194c139", "evidence": {"same_day": true, "patch_ids": ["061af71132ccdfb4f1bbeed893be595c"], "statement_hash": "3a14df9ccfd7372d3dac771a23f52e41c3376ea71cf1946e2c9e95f97d2b5d3b"}}, {"rule": 2, "type": "equivalent", "target": "5221242491685338de78e8922e1f353a", "evidence": {"same_day": true, "patch_ids": ["061af71132ccdfb4f1bbeed893be595c"], "statement_hash": "3a14df9ccfd7372d3dac771a23f52e41c3376ea71cf1946e2c9e95f97d2b5d3b"}}, {"rule": 2, "type": "equivalent", "target": "7a747536f32a440151dcb2b04ac4e968", "evidence": {"same_day": true, "patch_ids": ["061af71132ccdfb4f1bbeed893be595c"], "statement_hash": "3a14df9ccfd7372d3dac771a23f52e41c3376ea71cf1946e2c9e95f97d2b5d3b"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "36ccc2b6f4b04376dc6bf74ae3d2f6de", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "不要对 psql 的 \\unrestrict 命令参数执行反引号扩展", "evidence": {"same_day": true, "patch_ids": ["061af71132ccdfb4f1bbeed893be595c"], "statement_hash": "3a14df9ccfd7372d3dac771a23f52e41c3376ea71cf1946e2c9e95f97d2b5d3b"}, "url": "/docs/compare/?release=18.6#18.6-2227ccac7ef5135c", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "7a747536f32a440151dcb2b04ac4e968", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "不要对 psql 的 \\unrestrict 命令参数执行反引号扩展", "evidence": {"same_day": true, "patch_ids": ["061af71132ccdfb4f1bbeed893be595c"], "statement_hash": "3a14df9ccfd7372d3dac771a23f52e41c3376ea71cf1946e2c9e95f97d2b5d3b"}, "url": "/docs/compare/?release=16.15#16.15-59649e9a46bbab2a", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "5221242491685338de78e8922e1f353a", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "不要对 psql 的 \\unrestrict 命令参数执行反引号扩展", "evidence": {"same_day": true, "patch_ids": ["061af71132ccdfb4f1bbeed893be595c"], "statement_hash": "3a14df9ccfd7372d3dac771a23f52e41c3376ea71cf1946e2c9e95f97d2b5d3b"}, "url": "/docs/compare/?release=15.19#15.19-1eaa89bc0932599c", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "49dd1006826cb5f529df97b64194c139", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "不要对 psql 的 \\unrestrict 命令参数执行反引号扩展", "evidence": {"same_day": true, "patch_ids": ["061af71132ccdfb4f1bbeed893be595c"], "statement_hash": "3a14df9ccfd7372d3dac771a23f52e41c3376ea71cf1946e2c9e95f97d2b5d3b"}, "url": "/docs/compare/?release=14.24#14.24-383244a3d19a3ddf", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-f6aaa44b60ea5479", "cves": ["CVE-2026-19385"], "html": "移除 pg_dump 关于 pg_proc.protrftypes 不可能包含超过 FUNC_MAX_ARGS 个条目的假设（Tom Lane）§
由于该数组可能同时包含输入和输出参数的条目，其长度完全可能超过 FUNC_MAX_ARGS（该值只限制输入参数）。即使并非如此， pg_dump 也不能假定服务器构建时使用的 FUNC_MAX_ARGS 值与自身相同。越界写入会导致 pg_dump 内部的内存被破坏。
PostgreSQL 项目感谢 Masahiko Sawada 报告此问题。（CVE-2026-19385）
", "text": "移除 pg_dump 关于 pg_proc.protrftypes 不可能包含超过 FUNC_MAX_ARGS 个条目的假设（Tom Lane）§ 由于该数组可能同时包含输入和输出参数的条目，其长度完全可能超过 FUNC_MAX_ARGS（该值只限制输入参数）。即使并非如此， pg_dump 也不能假定服务器构建时使用的 FUNC_MAX_ARGS 值与自身相同。越界写入会导致 pg_dump 内部的内存被破坏。 PostgreSQL 项目感谢 Masahiko Sawada 报告此问题。（CVE-2026-19385）", "title": "移除 pg_dump 关于 pg_proc.protrftypes 不可能包含超过 FUNC_MAX_ARGS 个条目的假设", "commits": ["c2b16f5d4"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "b69b3cc938ddb8801e1017e3d9249f848f7c98fe1e49ce6583576842ef58e7be", "section_path": ["变更"], "commit_groups": [["13bb73aeb", "3299c2ba0", "3392cce5c", "57aa21f69", "71ba5705d", "86cd82bf4", "c2b16f5d4"]], "identity_text": "Remove pg_dump's assumption that pg_proc.protrftypes cannot have more than FUNC_MAX_ARGS entries (Tom Lane) Since there could be entries for both input and output arguments, it's feasible for this array's length to exceed FUNC_MAX_ARGS (which constrains only input arguments). Even if that were not so, pg_dump cannot assume that the server was built with the same value of FUNC_MAX_ARGS that it has. An overrun would lead to a memory clobber inside pg_dump. The PostgreSQL Project thanks Masahiko Sawada for reporting this problem. (CVE-2026-19385)", "commit_aliases": ["13bb73aeb", "3299c2ba0", "3392cce5c", "57aa21f69", "71ba5705d", "86cd82bf4", "c2b16f5d4"], "source_commits": ["c2b16f5d4"], "source_entry_id": "17.11/changes/021", "db_id": "63fc39b2fe0a2553fb195650ae6915cb", "patch_ids": ["185500373cc27d3d610be991561eb522"], "statement_hash": "0503fb690855a4bf21f955b8b62af71583c422a4e69c4c228faea1f3e3f8b84b", "relations": [{"rule": 2, "type": "equivalent", "target": "5183659937548a24721c52721ce5656b", "evidence": {"same_day": true, "patch_ids": ["185500373cc27d3d610be991561eb522"], "statement_hash": "0503fb690855a4bf21f955b8b62af71583c422a4e69c4c228faea1f3e3f8b84b"}}, {"rule": 2, "type": "equivalent", "target": "6a0f92cad4fbbfe88adb2be733310a9b", "evidence": {"same_day": true, "patch_ids": ["185500373cc27d3d610be991561eb522"], "statement_hash": "0503fb690855a4bf21f955b8b62af71583c422a4e69c4c228faea1f3e3f8b84b"}}, {"rule": 2, "type": "equivalent", "target": "dce6c62e738d4e4801ee4cb45757968f", "evidence": {"same_day": true, "patch_ids": ["185500373cc27d3d610be991561eb522"], "statement_hash": "0503fb690855a4bf21f955b8b62af71583c422a4e69c4c228faea1f3e3f8b84b"}}, {"rule": 2, "type": "equivalent", "target": "f91d32a8c03492afba6d7ba835690a32", "evidence": {"same_day": true, "patch_ids": ["185500373cc27d3d610be991561eb522"], "statement_hash": "0503fb690855a4bf21f955b8b62af71583c422a4e69c4c228faea1f3e3f8b84b"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "f91d32a8c03492afba6d7ba835690a32", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "移除 pg_dump 关于 pg_proc.protrftypes 不可能包含超过 FUNC_MAX_ARGS 个条目的假设", "evidence": {"same_day": true, "patch_ids": ["185500373cc27d3d610be991561eb522"], "statement_hash": "0503fb690855a4bf21f955b8b62af71583c422a4e69c4c228faea1f3e3f8b84b"}, "url": "/docs/compare/?release=18.6#18.6-d40f8de8e21a4c6f", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "dce6c62e738d4e4801ee4cb45757968f", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "移除 pg_dump 关于 pg_proc.protrftypes 不可能包含超过 FUNC_MAX_ARGS 个条目的假设", "evidence": {"same_day": true, "patch_ids": ["185500373cc27d3d610be991561eb522"], "statement_hash": "0503fb690855a4bf21f955b8b62af71583c422a4e69c4c228faea1f3e3f8b84b"}, "url": "/docs/compare/?release=16.15#16.15-d0330343bf3a2bca", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "5183659937548a24721c52721ce5656b", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "移除 pg_dump 关于 pg_proc.protrftypes 不可能包含超过 FUNC_MAX_ARGS 个条目的假设", "evidence": {"same_day": true, "patch_ids": ["185500373cc27d3d610be991561eb522"], "statement_hash": "0503fb690855a4bf21f955b8b62af71583c422a4e69c4c228faea1f3e3f8b84b"}, "url": "/docs/compare/?release=15.19#15.19-fa846de81d1d3c18", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "6a0f92cad4fbbfe88adb2be733310a9b", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "移除 pg_dump 关于 pg_proc.protrftypes 不可能包含超过 FUNC_MAX_ARGS 个条目的假设", "evidence": {"same_day": true, "patch_ids": ["185500373cc27d3d610be991561eb522"], "statement_hash": "0503fb690855a4bf21f955b8b62af71583c422a4e69c4c228faea1f3e3f8b84b"}, "url": "/docs/compare/?release=14.24#14.24-f37e6003b995c6db", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-58243a045a5d2555", "cves": ["CVE-2026-14670"], "html": "增强 PL/Perl 对 “tied” Perl 数组和 hash 的防护（Tom Lane）§
\n行为不符合常规的 tied 对象可能导致内存覆盖，或构造出损坏的结果数组（这很可能在之后引发问题）。
\nPostgreSQL 项目感谢 Hcamael 报告此问题。（CVE-2026-14670）
", "text": "增强 PL/Perl 对 “tied” Perl 数组和 hash 的防护（Tom Lane）§ 行为不符合常规的 tied 对象可能导致内存覆盖，或构造出损坏的结果数组（这很可能在之后引发问题）。 PostgreSQL 项目感谢 Hcamael 报告此问题。（CVE-2026-14670）", "title": "增强 PL/Perl 对 “tied” Perl 数组和 hash 的防护", "commits": ["2d78c34f8"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "c59b9a4c9f518a56661f6980580f4e6f93d911e4f39ce2ce6c335e80efe0d521", "section_path": ["变更"], "commit_groups": [["2d78c34f8", "477a6bdb0", "63cb15f40", "87c4b8219", "8c48cd615", "cf4ae7c3b", "d7fcfead3"]], "identity_text": "Harden PL/Perl against tied Perl arrays and hashes (Tom Lane) A tied object that doesn't behave like a regular one could lead to memory overwrite, or to constructing a corrupt result array (which would likely cause problems later). The PostgreSQL Project thanks Hcamael for reporting this problem. (CVE-2026-14670)", "commit_aliases": ["2d78c34f8", "477a6bdb0", "63cb15f40", "87c4b8219", "8c48cd615", "cf4ae7c3b", "d7fcfead3"], "source_commits": ["2d78c34f8"], "source_entry_id": "17.11/changes/022", "db_id": "59a40e9cc2306d6e115d10b26c7b6d9e", "patch_ids": ["5749c355b8bd5a5f2a0f8679d48902f9"], "statement_hash": "e681b36f925829491afb4aaf1536bea68f7b5021f6e0ea3fdb126ffd69367fa0", "relations": [{"rule": 2, "type": "equivalent", "target": "0caaa5502645631a657b97dc78add8c0", "evidence": {"same_day": true, "patch_ids": ["5749c355b8bd5a5f2a0f8679d48902f9"], "statement_hash": "e681b36f925829491afb4aaf1536bea68f7b5021f6e0ea3fdb126ffd69367fa0"}}, {"rule": 2, "type": "equivalent", "target": "45822fd5bc04f9bc7cd5310ebd922c61", "evidence": {"same_day": true, "patch_ids": ["5749c355b8bd5a5f2a0f8679d48902f9"], "statement_hash": "e681b36f925829491afb4aaf1536bea68f7b5021f6e0ea3fdb126ffd69367fa0"}}, {"rule": 2, "type": "equivalent", "target": "bd87bdc33bbf3c2a24631a385372b6ad", "evidence": {"same_day": true, "patch_ids": ["5749c355b8bd5a5f2a0f8679d48902f9"], "statement_hash": "e681b36f925829491afb4aaf1536bea68f7b5021f6e0ea3fdb126ffd69367fa0"}}, {"rule": 2, "type": "equivalent", "target": "f0c1fefb4fd60b97ad1a6420db84a85a", "evidence": {"same_day": true, "patch_ids": ["5749c355b8bd5a5f2a0f8679d48902f9"], "statement_hash": "e681b36f925829491afb4aaf1536bea68f7b5021f6e0ea3fdb126ffd69367fa0"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "45822fd5bc04f9bc7cd5310ebd922c61", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "增强 PL/Perl 对 “tied” Perl 数组和 hash 的防护", "evidence": {"same_day": true, "patch_ids": ["5749c355b8bd5a5f2a0f8679d48902f9"], "statement_hash": "e681b36f925829491afb4aaf1536bea68f7b5021f6e0ea3fdb126ffd69367fa0"}, "url": "/docs/compare/?release=18.6#18.6-6d183d795dd4fadd", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "0caaa5502645631a657b97dc78add8c0", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "增强 PL/Perl 对 “tied” Perl 数组和 hash 的防护", "evidence": {"same_day": true, "patch_ids": ["5749c355b8bd5a5f2a0f8679d48902f9"], "statement_hash": "e681b36f925829491afb4aaf1536bea68f7b5021f6e0ea3fdb126ffd69367fa0"}, "url": "/docs/compare/?release=16.15#16.15-9465542088e662ad", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "bd87bdc33bbf3c2a24631a385372b6ad", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "增强 PL/Perl 对“tied” Perl 数组和 hash 的防护", "evidence": {"same_day": true, "patch_ids": ["5749c355b8bd5a5f2a0f8679d48902f9"], "statement_hash": "e681b36f925829491afb4aaf1536bea68f7b5021f6e0ea3fdb126ffd69367fa0"}, "url": "/docs/compare/?release=15.19#15.19-31838acd743ddb41", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "f0c1fefb4fd60b97ad1a6420db84a85a", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "增强 PL/Perl 对“tied” Perl 数组和 hash 的防护", "evidence": {"same_day": true, "patch_ids": ["5749c355b8bd5a5f2a0f8679d48902f9"], "statement_hash": "e681b36f925829491afb4aaf1536bea68f7b5021f6e0ea3fdb126ffd69367fa0"}, "url": "/docs/compare/?release=14.24#14.24-00b84c1b83bd3d6b", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-7026dc1b76714418", "cves": ["CVE-2026-14677", "CVE-2026-6473"], "html": "修复 PL/Perl 和 PL/Tcl 内存分配计算中的整数溢出（Heikki Linnakangas）§
\n该问题与 CVE-2026-6473 属于同一类型，只是出现在代码的不同部分，并采用相同方式修复。
\nPostgreSQL 项目感谢 Tulya Project（Team Dhiutsa、Bitecope Technologies Private Ltd）报告此问题。（CVE-2026-14677）
", "text": "修复 PL/Perl 和 PL/Tcl 内存分配计算中的整数溢出（Heikki Linnakangas）§ 该问题与 CVE-2026-6473 属于同一类型，只是出现在代码的不同部分，并采用相同方式修复。 PostgreSQL 项目感谢 Tulya Project（Team Dhiutsa、Bitecope Technologies Private Ltd）报告此问题。（CVE-2026-14677）", "title": "修复 PL/Perl 和 PL/Tcl 内存分配计算中的整数溢出", "commits": ["b56cc7deb"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "13f2c6dea82fedf9149d8a10b3ebcc76189f78ce75fd185d84fcbea134962fcb", "section_path": ["变更"], "commit_groups": [["028ee716a", "1eb0d5380", "776467301", "8bbdc0540", "a1c1727cb", "aff9dac1c", "b56cc7deb"]], "identity_text": "Fix integer overflows in memory-allocation calculations in PL/Perl and PL/Tcl (Heikki Linnakangas) This is the same type of problem as CVE-2026-6473, just in a different part of the code, and is fixed in the same way. The PostgreSQL Project thanks the Tulya Project (Team Dhiutsa, Bitecope Technologies Private Ltd) for reporting this problem. (CVE-2026-14677)", "commit_aliases": ["028ee716a", "1eb0d5380", "776467301", "8bbdc0540", "a1c1727cb", "aff9dac1c", "b56cc7deb"], "source_commits": ["b56cc7deb"], "source_entry_id": "17.11/changes/023", "db_id": "a110c06ad7fd7a9c4f063b051daf6836", "patch_ids": ["551a41f04d69f180135194c24f4907fb"], "statement_hash": "b56f55f83d652a2d7354185c8891454536092c27a727aecc0b21ea91949626f4", "relations": [{"rule": 2, "type": "equivalent", "target": "238a2ce678961ff0ad08154da3915f04", "evidence": {"same_day": true, "patch_ids": ["551a41f04d69f180135194c24f4907fb"], "statement_hash": "b56f55f83d652a2d7354185c8891454536092c27a727aecc0b21ea91949626f4"}}, {"rule": 2, "type": "equivalent", "target": "4cc223998ff4d5b7cf50efd21e2284b1", "evidence": {"same_day": true, "patch_ids": ["551a41f04d69f180135194c24f4907fb"], "statement_hash": "b56f55f83d652a2d7354185c8891454536092c27a727aecc0b21ea91949626f4"}}, {"rule": 2, "type": "equivalent", "target": "eaeb89e4752f46002fc91e3a83e9f683", "evidence": {"same_day": true, "patch_ids": ["551a41f04d69f180135194c24f4907fb"], "statement_hash": "b56f55f83d652a2d7354185c8891454536092c27a727aecc0b21ea91949626f4"}}, {"rule": 2, "type": "equivalent", "target": "f5ff50e89bc960e1e5bac3249477b995", "evidence": {"same_day": true, "patch_ids": ["551a41f04d69f180135194c24f4907fb"], "statement_hash": "b56f55f83d652a2d7354185c8891454536092c27a727aecc0b21ea91949626f4"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "238a2ce678961ff0ad08154da3915f04", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 PL/Perl 和 PL/Tcl 内存分配计算中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["551a41f04d69f180135194c24f4907fb"], "statement_hash": "b56f55f83d652a2d7354185c8891454536092c27a727aecc0b21ea91949626f4"}, "url": "/docs/compare/?release=18.6#18.6-16cede7597f41368", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "f5ff50e89bc960e1e5bac3249477b995", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 PL/Perl 和 PL/Tcl 内存分配计算中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["551a41f04d69f180135194c24f4907fb"], "statement_hash": "b56f55f83d652a2d7354185c8891454536092c27a727aecc0b21ea91949626f4"}, "url": "/docs/compare/?release=16.15#16.15-342fcd712e0eba5c", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "4cc223998ff4d5b7cf50efd21e2284b1", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 PL/Perl 和 PL/Tcl 内存分配计算中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["551a41f04d69f180135194c24f4907fb"], "statement_hash": "b56f55f83d652a2d7354185c8891454536092c27a727aecc0b21ea91949626f4"}, "url": "/docs/compare/?release=15.19#15.19-d03175b8e62ca77d", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "eaeb89e4752f46002fc91e3a83e9f683", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 PL/Perl 和 PL/Tcl 内存分配计算中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["551a41f04d69f180135194c24f4907fb"], "statement_hash": "b56f55f83d652a2d7354185c8891454536092c27a727aecc0b21ea91949626f4"}, "url": "/docs/compare/?release=14.24#14.24-cbf179d0fe218ed0", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-ee34ba8ba8f4fa3d", "cves": ["CVE-2026-14673"], "html": "确保 contrib/amcheck 函数在执行索引表达式前限制 search_path（Noah Misch）§
由于 amcheck 会以相关表所有者的身份运行这些索引表达式，调用者可能劫持依赖 search_path 的函数，以表所有者身份运行任意代码。默认情况下这并非漏洞，因为只有超级用户可以调用 amcheck 函数；但如果将该权限授予其他用户，造成的风险会比文档所述更大。
PostgreSQL 项目感谢 Yuelin Wang 和 Jacob Brazeal 报告此问题。（CVE-2026-14673）
", "text": "确保 contrib/amcheck 函数在执行索引表达式前限制 search_path（Noah Misch）§ 由于 amcheck 会以相关表所有者的身份运行这些索引表达式，调用者可能劫持依赖 search_path 的函数，以表所有者身份运行任意代码。默认情况下这并非漏洞，因为只有超级用户可以调用 amcheck 函数；但如果将该权限授予其他用户，造成的风险会比文档所述更大。 PostgreSQL 项目感谢 Yuelin Wang 和 Jacob Brazeal 报告此问题。（CVE-2026-14673）", "title": "确保 contrib/amcheck 函数在执行索引表达式前限制 search_path", "commits": ["e41c72aff"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "a8007a40ebe9e29c26d395f6106499df5eab5cae15827adc996ea56fab8e3b88", "section_path": ["变更"], "commit_groups": [["0a61fcde0", "0fbf785b1", "2cc147318", "39d792040", "557cc7186", "e41c72aff", "e43e74756"]], "identity_text": "Ensure that contrib/amcheck functions restrict search_path before executing index expressions (Noah Misch) Because amcheck will run such index expressions as the owner of their tables, a caller could potentially hijack search_path-dependent functions to run arbitrary code as the table owner. By default this is not a vulnerability because only superusers are allowed to call amcheck functions; but if that privilege was granted out, it created a larger hazard than the documentation suggests. The PostgreSQL Project thanks Yuelin Wang and Jacob Brazeal for reporting this problem. (CVE-2026-14673)", "commit_aliases": ["0a61fcde0", "0fbf785b1", "2cc147318", "39d792040", "557cc7186", "e41c72aff", "e43e74756"], "source_commits": ["e41c72aff"], "source_entry_id": "17.11/changes/024", "db_id": "2c238928eeda3326738ac133c3580936", "patch_ids": ["5c909624ee89c6ad2350bdeebaf3e414"], "statement_hash": "659077ecd2d4227788959afddf19d4e415449e3189a19ba0beb867937958bff6", "relations": [{"rule": 2, "type": "equivalent", "target": "465e8cabac386aa937b2b97c990e0a0f", "evidence": {"same_day": true, "patch_ids": ["5c909624ee89c6ad2350bdeebaf3e414"], "statement_hash": "659077ecd2d4227788959afddf19d4e415449e3189a19ba0beb867937958bff6"}}, {"rule": 2, "type": "equivalent", "target": "9ef4dc62946cbc0407d82f3a9b826f0e", "evidence": {"same_day": true, "patch_ids": ["5c909624ee89c6ad2350bdeebaf3e414"], "statement_hash": "659077ecd2d4227788959afddf19d4e415449e3189a19ba0beb867937958bff6"}}, {"rule": 2, "type": "equivalent", "target": "c016d6a0f320dafa02d0585b20842685", "evidence": {"same_day": true, "patch_ids": ["5c909624ee89c6ad2350bdeebaf3e414"], "statement_hash": "659077ecd2d4227788959afddf19d4e415449e3189a19ba0beb867937958bff6"}}, {"rule": 2, "type": "equivalent", "target": "cb5c4637df879fb88877a760ee0058f9", "evidence": {"same_day": true, "patch_ids": ["5c909624ee89c6ad2350bdeebaf3e414"], "statement_hash": "659077ecd2d4227788959afddf19d4e415449e3189a19ba0beb867937958bff6"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "cb5c4637df879fb88877a760ee0058f9", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "确保 contrib/amcheck 函数在执行索引表达式前限制 search_path", "evidence": {"same_day": true, "patch_ids": ["5c909624ee89c6ad2350bdeebaf3e414"], "statement_hash": "659077ecd2d4227788959afddf19d4e415449e3189a19ba0beb867937958bff6"}, "url": "/docs/compare/?release=18.6#18.6-64ea1ee53902ffcc", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "465e8cabac386aa937b2b97c990e0a0f", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "确保 contrib/amcheck 函数在执行索引表达式前限制 search_path", "evidence": {"same_day": true, "patch_ids": ["5c909624ee89c6ad2350bdeebaf3e414"], "statement_hash": "659077ecd2d4227788959afddf19d4e415449e3189a19ba0beb867937958bff6"}, "url": "/docs/compare/?release=16.15#16.15-20c54db9d1517bb1", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "c016d6a0f320dafa02d0585b20842685", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "确保 contrib/amcheck 函数在执行索引表达式前限制 search_path", "evidence": {"same_day": true, "patch_ids": ["5c909624ee89c6ad2350bdeebaf3e414"], "statement_hash": "659077ecd2d4227788959afddf19d4e415449e3189a19ba0beb867937958bff6"}, "url": "/docs/compare/?release=15.19#15.19-ab72faa7677e5388", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "9ef4dc62946cbc0407d82f3a9b826f0e", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "确保 contrib/amcheck 函数在执行索引表达式前限制 search_path", "evidence": {"same_day": true, "patch_ids": ["5c909624ee89c6ad2350bdeebaf3e414"], "statement_hash": "659077ecd2d4227788959afddf19d4e415449e3189a19ba0beb867937958bff6"}, "url": "/docs/compare/?release=14.24#14.24-e234967475d09d13", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-8ee281616fb9fd49", "cves": ["CVE-2026-15742"], "html": "修复 contrib/fuzzystrmatch 的 levenshtein() 和 levenshtein_less_equal() 函数中的整数溢出（Nathan Bossart）§
向这些函数传入很大的代价值可能引发整数溢出，从而产生无意义的结果，甚至在某些情况下导致越界写入。
\nPostgreSQL 项目感谢 Ben Morris（与 Claude 和 Anthropic Research 协作）报告此问题。（CVE-2026-15742）
", "text": "修复 contrib/fuzzystrmatch 的 levenshtein() 和 levenshtein_less_equal() 函数中的整数溢出（Nathan Bossart）§ 向这些函数传入很大的代价值可能引发整数溢出，从而产生无意义的结果，甚至在某些情况下导致越界写入。 PostgreSQL 项目感谢 Ben Morris（与 Claude 和 Anthropic Research 协作）报告此问题。（CVE-2026-15742）", "title": "修复 contrib/fuzzystrmatch 的 levenshtein() 和 levenshtein_less_equal() 函数中的整数溢出", "commits": ["c4d51b627"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "9e4881f79518e1eea0310ecee55fe49f8fdc9c422154651bfd317731be7a452a", "section_path": ["变更"], "commit_groups": [["61481aa0e", "62c31b490", "74916136f", "918683d12", "9505175f2", "c4d51b627", "e88eb4e76"]], "identity_text": "Fix integer overflows in contrib/fuzzystrmatch's levenshtein() and levenshtein_less_equal() functions (Nathan Bossart) Passing large cost values to these functions could cause integer overflows, thereby producing nonsensical results, and even causing out-of-bounds writes in some cases. The PostgreSQL Project thanks Ben Morris (in collaboration with Claude and Anthropic Research) for reporting this problem. (CVE-2026-15742)", "commit_aliases": ["61481aa0e", "62c31b490", "74916136f", "918683d12", "9505175f2", "c4d51b627", "e88eb4e76"], "source_commits": ["c4d51b627"], "source_entry_id": "17.11/changes/025", "db_id": "6cca8c3102c334bca04243a3114f48fe", "patch_ids": ["b6a4ec5efdc01505934fe024a8a4270f"], "statement_hash": "f6379cf73e457381cf432fa9add17bfe91f2d96391011c3fe8081ecbbd13eff5", "relations": [{"rule": 2, "type": "equivalent", "target": "1e5eda106e8fd11472d74f91bffc2ff0", "evidence": {"same_day": true, "patch_ids": ["b6a4ec5efdc01505934fe024a8a4270f"], "statement_hash": "f6379cf73e457381cf432fa9add17bfe91f2d96391011c3fe8081ecbbd13eff5"}}, {"rule": 2, "type": "equivalent", "target": "24d49d08ad8dddbb2e9b85283621ee67", "evidence": {"same_day": true, "patch_ids": ["b6a4ec5efdc01505934fe024a8a4270f"], "statement_hash": "f6379cf73e457381cf432fa9add17bfe91f2d96391011c3fe8081ecbbd13eff5"}}, {"rule": 2, "type": "equivalent", "target": "bc23bdcfa3cae705ffa99474b3b97aae", "evidence": {"same_day": true, "patch_ids": ["b6a4ec5efdc01505934fe024a8a4270f"], "statement_hash": "f6379cf73e457381cf432fa9add17bfe91f2d96391011c3fe8081ecbbd13eff5"}}, {"rule": 2, "type": "equivalent", "target": "f41b59ba5bf8ae6184895fe8e7bb8dc1", "evidence": {"same_day": true, "patch_ids": ["b6a4ec5efdc01505934fe024a8a4270f"], "statement_hash": "f6379cf73e457381cf432fa9add17bfe91f2d96391011c3fe8081ecbbd13eff5"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "1e5eda106e8fd11472d74f91bffc2ff0", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 contrib/fuzzystrmatch 的 levenshtein() 和 levenshtein_less_equal() 函数中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["b6a4ec5efdc01505934fe024a8a4270f"], "statement_hash": "f6379cf73e457381cf432fa9add17bfe91f2d96391011c3fe8081ecbbd13eff5"}, "url": "/docs/compare/?release=18.6#18.6-9f4c551d8e885121", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "bc23bdcfa3cae705ffa99474b3b97aae", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 contrib/fuzzystrmatch 的 levenshtein() 和 levenshtein_less_equal() 函数中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["b6a4ec5efdc01505934fe024a8a4270f"], "statement_hash": "f6379cf73e457381cf432fa9add17bfe91f2d96391011c3fe8081ecbbd13eff5"}, "url": "/docs/compare/?release=16.15#16.15-a51d10d5c2a5583d", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "f41b59ba5bf8ae6184895fe8e7bb8dc1", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 contrib/fuzzystrmatch 的 levenshtein() 和 levenshtein_less_equal() 函数中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["b6a4ec5efdc01505934fe024a8a4270f"], "statement_hash": "f6379cf73e457381cf432fa9add17bfe91f2d96391011c3fe8081ecbbd13eff5"}, "url": "/docs/compare/?release=15.19#15.19-45fb139f005bf72d", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "24d49d08ad8dddbb2e9b85283621ee67", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 contrib/fuzzystrmatch 的 levenshtein() 和 levenshtein_less_equal() 函数中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["b6a4ec5efdc01505934fe024a8a4270f"], "statement_hash": "f6379cf73e457381cf432fa9add17bfe91f2d96391011c3fe8081ecbbd13eff5"}, "url": "/docs/compare/?release=14.24#14.24-249a71765a38f726", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-c47a9a8863c0fc6e", "cves": ["CVE-2026-14676"], "html": "修复 contrib/pg_stat_statements 中的缓冲区越界写入（Álvaro Herrera）
查询规范化过程未准确计算规范化字符串所需的空间。
\nPostgreSQL 项目感谢 Sajeeb Lohani（与 TrendAI Zero Day Initiative 合作）和 Yuelin Wang 报告此问题。（CVE-2026-14676）
", "text": "修复 contrib/pg_stat_statements 中的缓冲区越界写入（Álvaro Herrera） 查询规范化过程未准确计算规范化字符串所需的空间。 PostgreSQL 项目感谢 Sajeeb Lohani（与 TrendAI Zero Day Initiative 合作）和 Yuelin Wang 报告此问题。（CVE-2026-14676）", "title": "修复 contrib/pg_stat_statements 中的缓冲区越界写入", "commits": [], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "ca48f4077f77c6c16b1f3b54ed2340924f89b69f65b4efb2a69cd24757c7f56b", "section_path": ["变更"], "commit_groups": [["1e2795dde", "8a31ffc2d", "bb02eba53"]], "identity_text": "Fix buffer overrun in contrib/pg_stat_statements (Álvaro Herrera) Query normalization didn't accurately account for the amount of space the normalized string would require. The PostgreSQL Project thanks Sajeeb Lohani (with TrendAI Zero Day Initiative) and Yuelin Wang for reporting this problem. (CVE-2026-14676)", "commit_aliases": ["1e2795dde", "8a31ffc2d", "bb02eba53"], "source_commits": ["1e2795dde"], "source_entry_id": "17.11/changes/026", "db_id": "d7011cf7f02dec0d6f5320d50f1060d7", "patch_ids": ["ff92e3cbebc5005b0bef45f9f1d8d30a"], "statement_hash": "9ccd331655eef445554d4bf3ba5a781e3ca80ec62b9fce48b4cf6f7177789b22", "relations": [{"rule": 2, "type": "equivalent", "target": "29895bb80ed2951a21b387b1a32fd0bf", "evidence": {"same_day": true, "patch_ids": ["ff92e3cbebc5005b0bef45f9f1d8d30a"], "statement_hash": "9ccd331655eef445554d4bf3ba5a781e3ca80ec62b9fce48b4cf6f7177789b22"}}, {"rule": 2, "type": "equivalent", "target": "aaa4509a01eb087a7c8dae3d3477599b", "evidence": {"same_day": true, "patch_ids": ["ff92e3cbebc5005b0bef45f9f1d8d30a"], "statement_hash": "9ccd331655eef445554d4bf3ba5a781e3ca80ec62b9fce48b4cf6f7177789b22"}}, {"rule": 2, "type": "equivalent", "target": "d8f3c95effa66c9d7648ed329303a70e", "evidence": {"same_day": true, "patch_ids": ["ff92e3cbebc5005b0bef45f9f1d8d30a"], "statement_hash": "9ccd331655eef445554d4bf3ba5a781e3ca80ec62b9fce48b4cf6f7177789b22"}}, {"rule": 2, "type": "equivalent", "target": "e84c1b71b1c15bae4e222a2f72d84864", "evidence": {"same_day": true, "patch_ids": ["ff92e3cbebc5005b0bef45f9f1d8d30a"], "statement_hash": "9ccd331655eef445554d4bf3ba5a781e3ca80ec62b9fce48b4cf6f7177789b22"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "e84c1b71b1c15bae4e222a2f72d84864", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 contrib/pg_stat_statements 中的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["ff92e3cbebc5005b0bef45f9f1d8d30a"], "statement_hash": "9ccd331655eef445554d4bf3ba5a781e3ca80ec62b9fce48b4cf6f7177789b22"}, "url": "/docs/compare/?release=18.6#18.6-c2bc95cc72b98750", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "d8f3c95effa66c9d7648ed329303a70e", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 contrib/pg_stat_statements 中的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["ff92e3cbebc5005b0bef45f9f1d8d30a"], "statement_hash": "9ccd331655eef445554d4bf3ba5a781e3ca80ec62b9fce48b4cf6f7177789b22"}, "url": "/docs/compare/?release=16.15#16.15-c47a9a8863c0fc6e", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "29895bb80ed2951a21b387b1a32fd0bf", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 contrib/pg_stat_statements 中的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["ff92e3cbebc5005b0bef45f9f1d8d30a"], "statement_hash": "9ccd331655eef445554d4bf3ba5a781e3ca80ec62b9fce48b4cf6f7177789b22"}, "url": "/docs/compare/?release=15.19#15.19-c47a9a8863c0fc6e", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "aaa4509a01eb087a7c8dae3d3477599b", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 contrib/pg_stat_statements 中的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["ff92e3cbebc5005b0bef45f9f1d8d30a"], "statement_hash": "9ccd331655eef445554d4bf3ba5a781e3ca80ec62b9fce48b4cf6f7177789b22"}, "url": "/docs/compare/?release=14.24#14.24-c47a9a8863c0fc6e", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-caca197ce0ba4b3f", "cves": ["CVE-2026-14678"], "html": "修复 contrib/pg_trgm 的 GiST picksplit 函数中的数据类型错误（Heikki Linnakangas）§
此错误会导致缓冲区越界读取，通常造成不佳的页面分裂决策；在极少数情况下也可能导致崩溃。
\nPostgreSQL 项目感谢 Mehmet D. Ince 报告此问题。（CVE-2026-14678）
", "text": "修复 contrib/pg_trgm 的 GiST picksplit 函数中的数据类型错误（Heikki Linnakangas）§ 此错误会导致缓冲区越界读取，通常造成不佳的页面分裂决策；在极少数情况下也可能导致崩溃。 PostgreSQL 项目感谢 Mehmet D. Ince 报告此问题。（CVE-2026-14678）", "title": "修复 contrib/pg_trgm 的 GiST picksplit 函数中的数据类型错误", "commits": ["1af08af69"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "fee62153a84717bd66c9a2e86069663878d5ffec8dc78dd45171f81608712b1a", "section_path": ["变更"], "commit_groups": [["1af08af69", "24c88cd39", "66c2dbb20", "849019a50", "a74aa0854", "aa7b5815e", "c7c82a88c"]], "identity_text": "Fix datatype error in contrib/pg_trgm's GiST picksplit function (Heikki Linnakangas) This mistake resulted in reading past the end of the buffer, typically causing bad split decisions; but a crash could ensue if you're very unlucky. The PostgreSQL Project thanks Mehmet D. Ince for reporting this problem. (CVE-2026-14678)", "commit_aliases": ["1af08af69", "24c88cd39", "66c2dbb20", "849019a50", "a74aa0854", "aa7b5815e", "c7c82a88c"], "source_commits": ["1af08af69"], "source_entry_id": "17.11/changes/027", "db_id": "007e7b20002c9154a7b78500dad11fde", "patch_ids": ["e6003b6617841df26303992ba1215f03"], "statement_hash": "b75b9d4c297e71b80fedfe6eeb16417da2cd09f4baa7f5d2b7d3f4d2495f3474", "relations": [{"rule": 2, "type": "equivalent", "target": "0bc10887e786dd035f4571e42ea848b8", "evidence": {"same_day": true, "patch_ids": ["e6003b6617841df26303992ba1215f03"], "statement_hash": "b75b9d4c297e71b80fedfe6eeb16417da2cd09f4baa7f5d2b7d3f4d2495f3474"}}, {"rule": 2, "type": "equivalent", "target": "1dcffcddaa3ea6a57ebf8bf560e8c531", "evidence": {"same_day": true, "patch_ids": ["e6003b6617841df26303992ba1215f03"], "statement_hash": "b75b9d4c297e71b80fedfe6eeb16417da2cd09f4baa7f5d2b7d3f4d2495f3474"}}, {"rule": 2, "type": "equivalent", "target": "b9b08968a5deb7a55558cd0e3c3ecb91", "evidence": {"same_day": true, "patch_ids": ["e6003b6617841df26303992ba1215f03"], "statement_hash": "b75b9d4c297e71b80fedfe6eeb16417da2cd09f4baa7f5d2b7d3f4d2495f3474"}}, {"rule": 2, "type": "equivalent", "target": "c1b223f3527ab1382981f7ea6931f7ec", "evidence": {"same_day": true, "patch_ids": ["e6003b6617841df26303992ba1215f03"], "statement_hash": "b75b9d4c297e71b80fedfe6eeb16417da2cd09f4baa7f5d2b7d3f4d2495f3474"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "0bc10887e786dd035f4571e42ea848b8", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 contrib/pg_trgm 的 GiST picksplit 函数中的数据类型错误", "evidence": {"same_day": true, "patch_ids": ["e6003b6617841df26303992ba1215f03"], "statement_hash": "b75b9d4c297e71b80fedfe6eeb16417da2cd09f4baa7f5d2b7d3f4d2495f3474"}, "url": "/docs/compare/?release=18.6#18.6-b960de4f8267096f", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "1dcffcddaa3ea6a57ebf8bf560e8c531", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 contrib/pg_trgm 的 GiST picksplit 函数中的数据类型错误", "evidence": {"same_day": true, "patch_ids": ["e6003b6617841df26303992ba1215f03"], "statement_hash": "b75b9d4c297e71b80fedfe6eeb16417da2cd09f4baa7f5d2b7d3f4d2495f3474"}, "url": "/docs/compare/?release=16.15#16.15-0621542d439e129f", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "b9b08968a5deb7a55558cd0e3c3ecb91", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 contrib/pg_trgm 的 GiST picksplit 函数中的数据类型错误", "evidence": {"same_day": true, "patch_ids": ["e6003b6617841df26303992ba1215f03"], "statement_hash": "b75b9d4c297e71b80fedfe6eeb16417da2cd09f4baa7f5d2b7d3f4d2495f3474"}, "url": "/docs/compare/?release=15.19#15.19-057de36f6fc47ee3", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "c1b223f3527ab1382981f7ea6931f7ec", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 contrib/pg_trgm 的 GiST picksplit 函数中的数据类型错误", "evidence": {"same_day": true, "patch_ids": ["e6003b6617841df26303992ba1215f03"], "statement_hash": "b75b9d4c297e71b80fedfe6eeb16417da2cd09f4baa7f5d2b7d3f4d2495f3474"}, "url": "/docs/compare/?release=14.24#14.24-76522194454c0c43", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-9677b8014f265a17", "cves": ["CVE-2026-14671"], "html": "移除 contrib/refint 中的计划缓存（Ayush Tiwari）§
这种缓存行为存在几个严重缺陷，尤其是 check_foreign_key() 会把新键值嵌入其级联 UPDATE 查询，因此缓存计划会重复使用最初所需的值，而不是当前应使用的键值。最简单的解决办法是移除该缓存。
PostgreSQL 项目感谢 Hcamael 报告此问题。（CVE-2026-14671）
", "text": "移除 contrib/refint 中的计划缓存（Ayush Tiwari）§ 这种缓存行为存在几个严重缺陷，尤其是 check_foreign_key() 会把新键值嵌入其级联 UPDATE 查询，因此缓存计划会重复使用最初所需的值，而不是当前应使用的键值。最简单的解决办法是移除该缓存。 PostgreSQL 项目感谢 Hcamael 报告此问题。（CVE-2026-14671）", "title": "移除 contrib/refint 中的计划缓存", "commits": ["66a5146dc"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "52c4cc3dc614844c489b451015bc81f1f2dd42292c727b471d2a8d87081c49ba", "section_path": ["变更"], "commit_groups": [["1fbe2066d", "5b72d0279", "66a5146dc", "79a506228", "a572dd213", "b7b513d9a"]], "identity_text": "Remove the plan cache in contrib/refint (Ayush Tiwari) This caching behavior has several serious bugs, notably that check_foreign_key() embeds the new key values in its cascade-UPDATE queries, so a cached plan reuses the originally-needed values rather than the key values that should be used. The simplest solution is to remove it. The PostgreSQL Project thanks Hcamael for reporting this problem. (CVE-2026-14671)", "commit_aliases": ["1fbe2066d", "5b72d0279", "66a5146dc", "79a506228", "a572dd213", "b7b513d9a"], "source_commits": ["66a5146dc"], "source_entry_id": "17.11/changes/028", "db_id": "aca3bdc694388071f82dcc5eb7deb70d", "patch_ids": ["1a32666836cb434aea5b3cbd8282c9f7"], "statement_hash": "b8e6fe77ce440b33c793882e33b84a13458e57df19432239a74f731dbb6496f9", "relations": [{"rule": 2, "type": "equivalent", "target": "0edf0fe6be4ddcafd5c7d27addaa918f", "evidence": {"same_day": true, "patch_ids": ["1a32666836cb434aea5b3cbd8282c9f7"], "statement_hash": "b8e6fe77ce440b33c793882e33b84a13458e57df19432239a74f731dbb6496f9"}}, {"rule": 2, "type": "equivalent", "target": "139a1ada6baf2bae757b6a1a97ee7f41", "evidence": {"same_day": true, "patch_ids": ["1a32666836cb434aea5b3cbd8282c9f7"], "statement_hash": "b8e6fe77ce440b33c793882e33b84a13458e57df19432239a74f731dbb6496f9"}}, {"rule": 2, "type": "equivalent", "target": "7dbe14e2bbf06d93dd90088eae989b60", "evidence": {"same_day": true, "patch_ids": ["1a32666836cb434aea5b3cbd8282c9f7"], "statement_hash": "b8e6fe77ce440b33c793882e33b84a13458e57df19432239a74f731dbb6496f9"}}, {"rule": 2, "type": "equivalent", "target": "ddbe7d30f92efca35dca583745e7a91a", "evidence": {"same_day": true, "patch_ids": ["1a32666836cb434aea5b3cbd8282c9f7"], "statement_hash": "b8e6fe77ce440b33c793882e33b84a13458e57df19432239a74f731dbb6496f9"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "139a1ada6baf2bae757b6a1a97ee7f41", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "移除 contrib/refint 中的计划缓存", "evidence": {"same_day": true, "patch_ids": ["1a32666836cb434aea5b3cbd8282c9f7"], "statement_hash": "b8e6fe77ce440b33c793882e33b84a13458e57df19432239a74f731dbb6496f9"}, "url": "/docs/compare/?release=18.6#18.6-2fe39251a9e1874e", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "ddbe7d30f92efca35dca583745e7a91a", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "移除 contrib/refint 中的计划缓存", "evidence": {"same_day": true, "patch_ids": ["1a32666836cb434aea5b3cbd8282c9f7"], "statement_hash": "b8e6fe77ce440b33c793882e33b84a13458e57df19432239a74f731dbb6496f9"}, "url": "/docs/compare/?release=16.15#16.15-b2c274cdcaf4ba1b", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "0edf0fe6be4ddcafd5c7d27addaa918f", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "移除 contrib/refint 中的计划缓存", "evidence": {"same_day": true, "patch_ids": ["1a32666836cb434aea5b3cbd8282c9f7"], "statement_hash": "b8e6fe77ce440b33c793882e33b84a13458e57df19432239a74f731dbb6496f9"}, "url": "/docs/compare/?release=15.19#15.19-cf70552f3d82a213", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "7dbe14e2bbf06d93dd90088eae989b60", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "移除 contrib/refint 中的计划缓存", "evidence": {"same_day": true, "patch_ids": ["1a32666836cb434aea5b3cbd8282c9f7"], "statement_hash": "b8e6fe77ce440b33c793882e33b84a13458e57df19432239a74f731dbb6496f9"}, "url": "/docs/compare/?release=14.24#14.24-80251253da1ccc96", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-3e22bb5ab29aa62e", "cves": [], "html": "修复重新扫描异步 Append 计划节点时异步读取处理不当的问题（Alexander Korotkov、Gleb Kashkin、Etsuro Fujita）§
\n当上层计划节点尚未读取完整的 Append 输出就重新扫描 Append 时，需要丢弃所有已发送到外部服务器且尚未完成的请求（例如由 postgres_fdw 发送的请求）。此前，当子计划的参数发生变化，或者在下一次扫描中被分区剪枝丢弃时，这项操作未能正确完成。这可能导致错误的查询结果、无限循环或断言失败。
修复 RANGE 分区表的分区剪枝错误（David Rowley）§
\n在某些情况下，本不应跳过的 DEFAULT 分区会被跳过，这可能导致查询结果中缺少行。
", "text": "修复 RANGE 分区表的分区剪枝错误（David Rowley）§ 在某些情况下，本不应跳过的 DEFAULT 分区会被跳过，这可能导致查询结果中缺少行。", "title": "修复 RANGE 分区表的分区剪枝错误", "commits": ["31f2acde5"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "49a261d1bad9a876ceb1047967d2ad2fb36b3e1348f6947c949ecf3ba15c31af", "section_path": ["变更"], "commit_groups": [["02e69be47", "31f2acde5", "5190732c9", "6098f35f4", "709dfd27f", "9a0cd8e73", "f9282a650"]], "identity_text": "Fix error in partition pruning for RANGE-partitioned tables (David Rowley) In some cases the DEFAULT partition would be skipped when it should not be, which could lead to rows missing from query results.", "commit_aliases": ["02e69be47", "31f2acde5", "5190732c9", "6098f35f4", "709dfd27f", "9a0cd8e73", "f9282a650"], "source_commits": ["31f2acde5"], "source_entry_id": "17.11/changes/030", "db_id": "199c05dd5ca242a1207113d841920d91", "patch_ids": ["07f80c898c23577b927785baf5699ba6"], "statement_hash": "e3e0e32dc70a802e15316cd723301dfb9165a361cfaaa3eaebb6138320570c23", "relations": [{"rule": 2, "type": "equivalent", "target": "128f5b0ef464d5fb3f9f8de9b62b5b0c", "evidence": {"same_day": true, "patch_ids": ["07f80c898c23577b927785baf5699ba6"], "statement_hash": "e3e0e32dc70a802e15316cd723301dfb9165a361cfaaa3eaebb6138320570c23"}}, {"rule": 2, "type": "equivalent", "target": "8e616a25980e478e4ba1d40fd43361c9", "evidence": {"same_day": true, "patch_ids": ["07f80c898c23577b927785baf5699ba6"], "statement_hash": "e3e0e32dc70a802e15316cd723301dfb9165a361cfaaa3eaebb6138320570c23"}}, {"rule": 2, "type": "equivalent", "target": "b1408f66d7e290909c80f8c2b9d6a6e6", "evidence": {"same_day": true, "patch_ids": ["07f80c898c23577b927785baf5699ba6"], "statement_hash": "e3e0e32dc70a802e15316cd723301dfb9165a361cfaaa3eaebb6138320570c23"}}, {"rule": 2, "type": "equivalent", "target": "c03487e8eed72def14469f629495faba", "evidence": {"same_day": true, "patch_ids": ["07f80c898c23577b927785baf5699ba6"], "statement_hash": "e3e0e32dc70a802e15316cd723301dfb9165a361cfaaa3eaebb6138320570c23"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "128f5b0ef464d5fb3f9f8de9b62b5b0c", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 RANGE 分区表的分区剪枝错误", "evidence": {"same_day": true, "patch_ids": ["07f80c898c23577b927785baf5699ba6"], "statement_hash": "e3e0e32dc70a802e15316cd723301dfb9165a361cfaaa3eaebb6138320570c23"}, "url": "/docs/compare/?release=18.6#18.6-1c1bf5522234d430", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "b1408f66d7e290909c80f8c2b9d6a6e6", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 RANGE 分区表的分区剪枝错误", "evidence": {"same_day": true, "patch_ids": ["07f80c898c23577b927785baf5699ba6"], "statement_hash": "e3e0e32dc70a802e15316cd723301dfb9165a361cfaaa3eaebb6138320570c23"}, "url": "/docs/compare/?release=16.15#16.15-cce23f53ca16684a", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "8e616a25980e478e4ba1d40fd43361c9", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 RANGE 分区表的分区剪枝错误", "evidence": {"same_day": true, "patch_ids": ["07f80c898c23577b927785baf5699ba6"], "statement_hash": "e3e0e32dc70a802e15316cd723301dfb9165a361cfaaa3eaebb6138320570c23"}, "url": "/docs/compare/?release=15.19#15.19-b3f92b81dd82f323", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "c03487e8eed72def14469f629495faba", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 RANGE 分区表的分区剪枝错误", "evidence": {"same_day": true, "patch_ids": ["07f80c898c23577b927785baf5699ba6"], "statement_hash": "e3e0e32dc70a802e15316cd723301dfb9165a361cfaaa3eaebb6138320570c23"}, "url": "/docs/compare/?release=14.24#14.24-b6f407b6d50bed97", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-0179d9549f7c629e", "cves": [], "html": "修复规划器对 value IN (array)
只有在已知数组操作数非空时，这些检查才应成功，但此前遗漏了这项考虑，因而可能应用本不该采用的优化。如果数组实际为空，这可能导致查询结果错误。
", "text": "修复规划器对 value IN (array) 表达式所做的可空性和严格性检查（Ayush Tiwari）§ 只有在已知数组操作数非空时，这些检查才应成功，但此前遗漏了这项考虑，因而可能应用本不该采用的优化。如果数组实际为空，这可能导致查询结果错误。", "title": "修复规划器对 value IN (array) 表达式所做的可空性和严格性检查", "commits": ["26d6b7dc9"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "823d5a484e15b4b5bf44314b5c2ae24d9cec0e9be4afe1d31de6980f3782060a", "section_path": ["变更"], "commit_groups": [["13b627a3e", "239eabda4", "26d6b7dc9", "277122036", "53470ffba", "6fcee189b", "9740c68ff"]], "identity_text": "Fix planner's nullability and strictness checks for value IN (array) expressions (Ayush Tiwari) These checks should only succeed if the array operand is known to be non-empty, but that consideration was missed, allowing optimizations to be applied that should not be. This could result in wrong query answers if the array actually was empty.", "commit_aliases": ["13b627a3e", "239eabda4", "26d6b7dc9", "277122036", "53470ffba", "6fcee189b", "9740c68ff"], "source_commits": ["26d6b7dc9"], "source_entry_id": "17.11/changes/031", "db_id": "53fcc801e2a78a55196f6122abbd7a01", "patch_ids": ["df435503db83a1e14391340c77582135"], "statement_hash": "2d92bc3cfa84bb56afc5d1f1b3a42de958d5476b1ad5c8eeac46ecc8e878ca25", "relations": [{"rule": 2, "type": "equivalent", "target": "295b1a7da9077453b2e0fd1899e5c7e4", "evidence": {"same_day": true, "patch_ids": ["df435503db83a1e14391340c77582135"], "statement_hash": "2d92bc3cfa84bb56afc5d1f1b3a42de958d5476b1ad5c8eeac46ecc8e878ca25"}}, {"rule": 2, "type": "equivalent", "target": "8c22785dc1e64a0a8f07acd08ee8695d", "evidence": {"same_day": true, "patch_ids": ["df435503db83a1e14391340c77582135"], "statement_hash": "2d92bc3cfa84bb56afc5d1f1b3a42de958d5476b1ad5c8eeac46ecc8e878ca25"}}, {"rule": 2, "type": "equivalent", "target": "ad3ee3744d12ed87e41b743df908a973", "evidence": {"same_day": true, "patch_ids": ["df435503db83a1e14391340c77582135"], "statement_hash": "2d92bc3cfa84bb56afc5d1f1b3a42de958d5476b1ad5c8eeac46ecc8e878ca25"}}, {"rule": 2, "type": "equivalent", "target": "c4e4aedd211ab9a3cebe71bab9209dff", "evidence": {"same_day": true, "patch_ids": ["df435503db83a1e14391340c77582135"], "statement_hash": "2d92bc3cfa84bb56afc5d1f1b3a42de958d5476b1ad5c8eeac46ecc8e878ca25"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "ad3ee3744d12ed87e41b743df908a973", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复规划器对 value IN (array) 表达式所做的可空性和严格性检查", "evidence": {"same_day": true, "patch_ids": ["df435503db83a1e14391340c77582135"], "statement_hash": "2d92bc3cfa84bb56afc5d1f1b3a42de958d5476b1ad5c8eeac46ecc8e878ca25"}, "url": "/docs/compare/?release=18.6#18.6-7f07d942a2dc7fb3", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "c4e4aedd211ab9a3cebe71bab9209dff", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复规划器对 value IN (array) 表达式所做的可空性和严格性检查", "evidence": {"same_day": true, "patch_ids": ["df435503db83a1e14391340c77582135"], "statement_hash": "2d92bc3cfa84bb56afc5d1f1b3a42de958d5476b1ad5c8eeac46ecc8e878ca25"}, "url": "/docs/compare/?release=16.15#16.15-fa8b871fcf656789", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "8c22785dc1e64a0a8f07acd08ee8695d", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复规划器对 value IN (array) 表达式所做的可空性和严格性检查", "evidence": {"same_day": true, "patch_ids": ["df435503db83a1e14391340c77582135"], "statement_hash": "2d92bc3cfa84bb56afc5d1f1b3a42de958d5476b1ad5c8eeac46ecc8e878ca25"}, "url": "/docs/compare/?release=15.19#15.19-6f626d9b6541c108", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "295b1a7da9077453b2e0fd1899e5c7e4", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复规划器对 value IN (array) 表达式所做的可空性和严格性检查", "evidence": {"same_day": true, "patch_ids": ["df435503db83a1e14391340c77582135"], "statement_hash": "2d92bc3cfa84bb56afc5d1f1b3a42de958d5476b1ad5c8eeac46ecc8e878ca25"}, "url": "/docs/compare/?release=14.24#14.24-1f1442421fcf2295", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-8ac984b046b9e22d", "cves": [], "html": "修复错误的连接移除逻辑（Matheus Alcantara、Richard Guo）§ §
\n在边缘情况下，来自外连接可空侧内部的常量输出值可能在应替换为 NULL 时未被替换。
", "text": "修复错误的连接移除逻辑（Matheus Alcantara、Richard Guo）§ § 在边缘情况下，来自外连接可空侧内部的常量输出值可能在应替换为 NULL 时未被替换。", "title": "修复错误的连接移除逻辑", "commits": ["b308eb366", "cdcec567d"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "f147f6d6798bd9d42cab88c16b04ca61a87728d1a38310f0f1bacfe10a8906ef", "section_path": ["变更"], "commit_groups": [["0da71d90d", "72457f1df", "9e40d07e1", "b308eb366", "d610d8e8b"], ["1df9e8d96", "21f5e659e", "3e1fe25e6", "8bc479627", "cdcec567d"]], "identity_text": "Fix incorrect join removal logic (Matheus Alcantara, Richard Guo) In edge cases, it was possible for a constant output value coming from within the nullable side of an outer join to not be replaced by NULL when it should be.", "commit_aliases": ["0da71d90d", "1df9e8d96", "21f5e659e", "3e1fe25e6", "72457f1df", "8bc479627", "9e40d07e1", "b308eb366", "cdcec567d", "d610d8e8b"], "source_commits": ["b308eb366", "cdcec567d"], "source_entry_id": "17.11/changes/032", "db_id": "d46715d5dbb4902eaecdcfe45967fd74", "patch_ids": ["1e12745a4a72c22047b3d9e8c13b8fb6", "dabc0be4437bfea2c9473e4b0cbd7ede"], "statement_hash": "66372d30c157ceb2f0f88f6e5275d315accebe006eebab6de4089f55d7597b5d", "relations": [{"rule": 2, "type": "equivalent", "target": "4f181419572dec31c7f8a0612a21f555", "evidence": {"same_day": true, "patch_ids": ["1e12745a4a72c22047b3d9e8c13b8fb6", "dabc0be4437bfea2c9473e4b0cbd7ede"], "statement_hash": "66372d30c157ceb2f0f88f6e5275d315accebe006eebab6de4089f55d7597b5d"}}, {"rule": 2, "type": "equivalent", "target": "86a9304ee897d487f2f08fdf6cd5a298", "evidence": {"same_day": true, "patch_ids": ["1e12745a4a72c22047b3d9e8c13b8fb6", "dabc0be4437bfea2c9473e4b0cbd7ede"], "statement_hash": "66372d30c157ceb2f0f88f6e5275d315accebe006eebab6de4089f55d7597b5d"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "4f181419572dec31c7f8a0612a21f555", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复错误的连接移除逻辑", "evidence": {"same_day": true, "patch_ids": ["1e12745a4a72c22047b3d9e8c13b8fb6", "dabc0be4437bfea2c9473e4b0cbd7ede"], "statement_hash": "66372d30c157ceb2f0f88f6e5275d315accebe006eebab6de4089f55d7597b5d"}, "url": "/docs/compare/?release=18.6#18.6-8445b59319518d4d", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "86a9304ee897d487f2f08fdf6cd5a298", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复错误的连接移除逻辑", "evidence": {"same_day": true, "patch_ids": ["1e12745a4a72c22047b3d9e8c13b8fb6", "dabc0be4437bfea2c9473e4b0cbd7ede"], "statement_hash": "66372d30c157ceb2f0f88f6e5275d315accebe006eebab6de4089f55d7597b5d"}, "url": "/docs/compare/?release=16.15#16.15-dbc5e51d45a37594", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}]}, {"id": "17.11-f6f35a5c24f27bf2", "cves": [], "html": "补上对容器数据类型（数组、复合类型、范围类型）的等值比较是否支持 hash 运算的检查（Andrei Lepikhov、Tom Lane）§
\n规划器在决定可以使用基于 hash 的计划类型之前，必须验证容器组成类型是否可进行 hash 运算。此前有些地方遗漏了这一步，导致执行时出现 “could not identify a hash function” 错误。
", "text": "补上对容器数据类型（数组、复合类型、范围类型）的等值比较是否支持 hash 运算的检查（Andrei Lepikhov、Tom Lane）§ 规划器在决定可以使用基于 hash 的计划类型之前，必须验证容器组成类型是否可进行 hash 运算。此前有些地方遗漏了这一步，导致执行时出现 “could not identify a hash function” 错误。", "title": "补上对容器数据类型（数组、复合类型、范围类型）的等值比较是否支持 hash 运算的检查", "commits": ["19152e3c2"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "ed1b083f70dd885d06cba5c3e3297dea257d7bf0de2cbfb69769fe833135afbc", "section_path": ["变更"], "commit_groups": [["06e94eccf", "11aed8d19", "19152e3c2", "64778fac7", "caebac5f1", "cf2bfe073"]], "identity_text": "Add missed checks for hashability of equality comparisons on container datatypes (arrays, composites, ranges) (Andrei Lepikhov, Tom Lane) The planner must verify hashability of the container's component type(s) before deciding it can use a hash-based plan type. This step was missed in some places, leading to could not identify a hash function failures at execution.", "commit_aliases": ["06e94eccf", "11aed8d19", "19152e3c2", "64778fac7", "caebac5f1", "cf2bfe073"], "source_commits": ["19152e3c2"], "source_entry_id": "17.11/changes/033", "db_id": "4de85f9df67410e6ee11d61a4934c2dd", "patch_ids": ["f162e2041e91d006f552b603fcf44b0b"], "statement_hash": "b7a7a5b48bc59370b10583c89b44b2318a828907126bcf1f7993377c9815a9e9", "relations": [{"rule": 2, "type": "equivalent", "target": "8f291081d50c65368eaa75ffccbfb916", "evidence": {"same_day": true, "patch_ids": ["f162e2041e91d006f552b603fcf44b0b"], "statement_hash": "b7a7a5b48bc59370b10583c89b44b2318a828907126bcf1f7993377c9815a9e9"}}, {"rule": 2, "type": "equivalent", "target": "b401153415d6c7495b085ccde803a0bc", "evidence": {"same_day": true, "patch_ids": ["f162e2041e91d006f552b603fcf44b0b"], "statement_hash": "b7a7a5b48bc59370b10583c89b44b2318a828907126bcf1f7993377c9815a9e9"}}, {"rule": 2, "type": "equivalent", "target": "f09d5370fd92cd8394d32a7c6a39f808", "evidence": {"same_day": true, "patch_ids": ["f162e2041e91d006f552b603fcf44b0b"], "statement_hash": "b7a7a5b48bc59370b10583c89b44b2318a828907126bcf1f7993377c9815a9e9"}}, {"rule": 2, "type": "equivalent", "target": "f1ae81ec65ad7eceb75ed5e3e0b2c543", "evidence": {"same_day": true, "patch_ids": ["f162e2041e91d006f552b603fcf44b0b"], "statement_hash": "b7a7a5b48bc59370b10583c89b44b2318a828907126bcf1f7993377c9815a9e9"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "b401153415d6c7495b085ccde803a0bc", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "补上对容器数据类型（数组、复合类型、范围类型）的等值比较是否支持 hash 运算的检查", "evidence": {"same_day": true, "patch_ids": ["f162e2041e91d006f552b603fcf44b0b"], "statement_hash": "b7a7a5b48bc59370b10583c89b44b2318a828907126bcf1f7993377c9815a9e9"}, "url": "/docs/compare/?release=18.6#18.6-7bb42265442bdc48", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "f09d5370fd92cd8394d32a7c6a39f808", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "补上对容器数据类型（数组、复合类型、范围类型）的等值比较是否支持 hash 运算的检查", "evidence": {"same_day": true, "patch_ids": ["f162e2041e91d006f552b603fcf44b0b"], "statement_hash": "b7a7a5b48bc59370b10583c89b44b2318a828907126bcf1f7993377c9815a9e9"}, "url": "/docs/compare/?release=16.15#16.15-0fac2f9a99aa0191", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "8f291081d50c65368eaa75ffccbfb916", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "补上对容器数据类型（数组、复合类型、范围类型）的等值比较是否支持 hash 运算的检查", "evidence": {"same_day": true, "patch_ids": ["f162e2041e91d006f552b603fcf44b0b"], "statement_hash": "b7a7a5b48bc59370b10583c89b44b2318a828907126bcf1f7993377c9815a9e9"}, "url": "/docs/compare/?release=15.19#15.19-af11d749ae05b88c", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "f1ae81ec65ad7eceb75ed5e3e0b2c543", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "补上对容器数据类型（数组、复合类型、范围类型）的等值比较是否支持 hash 运算的检查", "evidence": {"same_day": true, "patch_ids": ["f162e2041e91d006f552b603fcf44b0b"], "statement_hash": "b7a7a5b48bc59370b10583c89b44b2318a828907126bcf1f7993377c9815a9e9"}, "url": "/docs/compare/?release=14.24#14.24-16597bc3e22164d9", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-c7bededba93f5fa4", "cves": [], "html": "修复 COUNT 窗口函数的错误优化：这些函数带有 EXCLUDE 子句或缺少 ORDER BY（Chengpeng Yan、David Rowley）§
这些窗口函数在不应被视为单调函数的情况下被当成单调函数处理，因而可能计算出错误答案。
", "text": "修复 COUNT 窗口函数的错误优化：这些函数带有 EXCLUDE 子句或缺少 ORDER BY（Chengpeng Yan、David Rowley）§ 这些窗口函数在不应被视为单调函数的情况下被当成单调函数处理，因而可能计算出错误答案。", "title": "修复 COUNT 窗口函数的错误优化：这些函数带有 EXCLUDE 子句或缺少 ORDER BY", "commits": ["be63b285e"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "6de80c9b10cf3770ebaace3062e8410a2e5aabc7e2c93e7048cd8a74d929c839", "section_path": ["变更"], "commit_groups": [["842e34efa", "a85732162", "be63b285e", "cf184ec77", "d007800f0", "fcd58c6d9"]], "identity_text": "Fix mis-optimization of COUNT window functions that have an EXCLUDE clause or lack ORDER BY (Chengpeng Yan, David Rowley) These window functions were treated as monotonic when they should not be, allowing wrong answers to be computed.", "commit_aliases": ["842e34efa", "a85732162", "be63b285e", "cf184ec77", "d007800f0", "fcd58c6d9"], "source_commits": ["be63b285e"], "source_entry_id": "17.11/changes/034", "db_id": "40a7c9c1b0ba3bb62e973869e4377d48", "patch_ids": ["28e51714721f6a824be654de7f6357bc"], "statement_hash": "6285e56236281de47720490e02f655ef1c492df7841c118242cef65b8c828aa3", "relations": [{"rule": 2, "type": "equivalent", "target": "28c2612bebf05e287b83343abb5a649a", "evidence": {"same_day": true, "patch_ids": ["28e51714721f6a824be654de7f6357bc"], "statement_hash": "6285e56236281de47720490e02f655ef1c492df7841c118242cef65b8c828aa3"}}, {"rule": 2, "type": "equivalent", "target": "ddf83605232b0de3c591e0caa7a88605", "evidence": {"same_day": true, "patch_ids": ["28e51714721f6a824be654de7f6357bc"], "statement_hash": "6285e56236281de47720490e02f655ef1c492df7841c118242cef65b8c828aa3"}}, {"rule": 2, "type": "equivalent", "target": "f36b3896971ebb704e9049fa9035f582", "evidence": {"same_day": true, "patch_ids": ["28e51714721f6a824be654de7f6357bc"], "statement_hash": "6285e56236281de47720490e02f655ef1c492df7841c118242cef65b8c828aa3"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "ddf83605232b0de3c591e0caa7a88605", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 COUNT 窗口函数的错误优化：这些函数带有 EXCLUDE 子句或缺少 ORDER BY", "evidence": {"same_day": true, "patch_ids": ["28e51714721f6a824be654de7f6357bc"], "statement_hash": "6285e56236281de47720490e02f655ef1c492df7841c118242cef65b8c828aa3"}, "url": "/docs/compare/?release=18.6#18.6-88417491cf3856e5", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "f36b3896971ebb704e9049fa9035f582", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 COUNT 窗口函数的错误优化：这些函数带有 EXCLUDE 子句或缺少 ORDER BY", "evidence": {"same_day": true, "patch_ids": ["28e51714721f6a824be654de7f6357bc"], "statement_hash": "6285e56236281de47720490e02f655ef1c492df7841c118242cef65b8c828aa3"}, "url": "/docs/compare/?release=16.15#16.15-771e23308af7ee5f", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "28c2612bebf05e287b83343abb5a649a", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 COUNT 窗口函数的错误优化：这些函数带有 EXCLUDE 子句或缺少 ORDER BY", "evidence": {"same_day": true, "patch_ids": ["28e51714721f6a824be654de7f6357bc"], "statement_hash": "6285e56236281de47720490e02f655ef1c492df7841c118242cef65b8c828aa3"}, "url": "/docs/compare/?release=15.19#15.19-b8bb580eb8de14f5", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}]}, {"id": "17.11-aa9ce164073e6fc7", "cves": [], "html": "修复 ALTER COLUMN ... DROP EXPRESSION 在存在多级分区时无法正常工作的问题（Alberto Piai）§
修复为排他约束索引附加分区的问题（Japin Li）§
\n值得注意的是，这一疏漏破坏了分区排他约束的导出/恢复。
", "text": "修复为排他约束索引附加分区的问题（Japin Li）§ 值得注意的是，这一疏漏破坏了分区排他约束的导出/恢复。", "title": "修复为排他约束索引附加分区的问题", "commits": ["1d6c654c8"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "63d1e468487adae52c7f6fb6b69260eceaa16a0e63714653cd0ed8ce8013ae13", "section_path": ["变更"], "commit_groups": [["19e3aa704", "1d6c654c8", "2b2c2492c", "d049a31a4"]], "identity_text": "Fix attaching partitions of indexes that are exclusion constraints (Japin Li) Notably, this oversight broke dump/restore of partitioned exclusion constraints.", "commit_aliases": ["19e3aa704", "1d6c654c8", "2b2c2492c", "d049a31a4"], "source_commits": ["1d6c654c8"], "source_entry_id": "17.11/changes/036", "db_id": "93afcbc160733050810dc157756fa912", "patch_ids": ["32801b307162bd0744d51d9ca6c96a29"], "statement_hash": "a43e644386fbc7d5b0bbee11dd34413bc9867bd3e1172c28e5ef212327072aab", "relations": [{"rule": 2, "type": "equivalent", "target": "5c4182efd803f6d6d6537714c7bd42b7", "evidence": {"same_day": true, "patch_ids": ["32801b307162bd0744d51d9ca6c96a29"], "statement_hash": "a43e644386fbc7d5b0bbee11dd34413bc9867bd3e1172c28e5ef212327072aab"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "5c4182efd803f6d6d6537714c7bd42b7", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复为排他约束索引附加分区的问题", "evidence": {"same_day": true, "patch_ids": ["32801b307162bd0744d51d9ca6c96a29"], "statement_hash": "a43e644386fbc7d5b0bbee11dd34413bc9867bd3e1172c28e5ef212327072aab"}, "url": "/docs/compare/?release=18.6#18.6-e8b58d1d4a2ada71", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-d462466d836ceca5", "cves": [], "html": "禁止将规则重命名为 _RETURN（Tom Lane）§
该名称保留给视图的 ON SELECT 规则，但 ALTER RULE 允许将其他规则重命名为 _RETURN，从而引发后续问题。
修复 DROP OWNED BY 中角色成员资格授权未释放锁的问题（Jeff Davis）§
这一疏漏会产生警告消息，随后成员资格授权上的锁会一直保留到事务结束。
", "text": "修复 DROP OWNED BY 中角色成员资格授权未释放锁的问题（Jeff Davis）§ 这一疏漏会产生警告消息，随后成员资格授权上的锁会一直保留到事务结束。", "title": "修复 DROP OWNED BY 中角色成员资格授权未释放锁的问题", "commits": ["25e54cec7"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "59a05a9bc2ca3c34ecdcb3aa6d6f22b6869e15248b1531518a147ab7d03eb571", "section_path": ["变更"], "commit_groups": [["25e54cec7", "9eccdae22", "a0daa0b41", "b48caa7df", "e61d44fde"]], "identity_text": "Fix missing lock release for role membership grants in DROP OWNED BY (Jeff Davis) This oversight resulted in a warning message, followed by retaining a lock on the membership grant until the end of the transaction.", "commit_aliases": ["25e54cec7", "9eccdae22", "a0daa0b41", "b48caa7df", "e61d44fde"], "source_commits": ["25e54cec7"], "source_entry_id": "17.11/changes/038", "db_id": "f38a9d64af080b972d55091afa2b7167", "patch_ids": ["366a54c27360ab3839f71c858dc847c7"], "statement_hash": "c3d8dda4db627322e27465f2a355faabf29a98b7c4ddfd870cf46d4fa9b704f9", "relations": [{"rule": 2, "type": "equivalent", "target": "0563a596791449f44372e96193722ea2", "evidence": {"same_day": true, "patch_ids": ["366a54c27360ab3839f71c858dc847c7"], "statement_hash": "c3d8dda4db627322e27465f2a355faabf29a98b7c4ddfd870cf46d4fa9b704f9"}}, {"rule": 2, "type": "equivalent", "target": "5ac990e6d8ae4f5c9facf9044c23d6c9", "evidence": {"same_day": true, "patch_ids": ["366a54c27360ab3839f71c858dc847c7"], "statement_hash": "c3d8dda4db627322e27465f2a355faabf29a98b7c4ddfd870cf46d4fa9b704f9"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "5ac990e6d8ae4f5c9facf9044c23d6c9", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 DROP OWNED BY 中角色成员资格授权未释放锁的问题", "evidence": {"same_day": true, "patch_ids": ["366a54c27360ab3839f71c858dc847c7"], "statement_hash": "c3d8dda4db627322e27465f2a355faabf29a98b7c4ddfd870cf46d4fa9b704f9"}, "url": "/docs/compare/?release=18.6#18.6-b6f7587292fb4dc6", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "0563a596791449f44372e96193722ea2", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 DROP OWNED BY 中角色成员资格授权未释放锁的问题", "evidence": {"same_day": true, "patch_ids": ["366a54c27360ab3839f71c858dc847c7"], "statement_hash": "c3d8dda4db627322e27465f2a355faabf29a98b7c4ddfd870cf46d4fa9b704f9"}, "url": "/docs/compare/?release=16.15#16.15-6fff16ad10712541", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}]}, {"id": "17.11-df483e133aa49926", "cves": [], "html": "修复 EXPLAIN 在逆解析 SQL/JSON 聚合时失败的问题（Richard Guo）§
某些计划结构会导致 “invalid JsonConstructorExpr underlying node type” 错误。
", "text": "修复 EXPLAIN 在逆解析 SQL/JSON 聚合时失败的问题（Richard Guo）§ 某些计划结构会导致 “invalid JsonConstructorExpr underlying node type” 错误。", "title": "修复 EXPLAIN 在逆解析 SQL/JSON 聚合时失败的问题", "commits": ["dcda1f07d"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "4efe05a3106b28a4fe5a7dcb47b44c2d7a4e5ff745ca208c58dfbb535ee87289", "section_path": ["变更"], "commit_groups": [["45364e496", "485527190", "96ab9a990", "dcda1f07d", "eaa561fb6"]], "identity_text": "Fix failure of EXPLAIN when deparsing SQL/JSON aggregates (Richard Guo) Some plan structures resulted in invalid JsonConstructorExpr underlying node type errors.", "commit_aliases": ["45364e496", "485527190", "96ab9a990", "dcda1f07d", "eaa561fb6"], "source_commits": ["dcda1f07d"], "source_entry_id": "17.11/changes/039", "db_id": "76da1bf58091a36c27ddeecb07c72440", "patch_ids": ["60000a6e62ddc3ae0c3b7ef80802ee71"], "statement_hash": "6a7283c8b92d0663e05728d26d406516f01a522c2433821f328a072f69e8d6c2", "relations": [{"rule": 2, "type": "equivalent", "target": "9796917e37d7742de7735ae20dbc9e8c", "evidence": {"same_day": true, "patch_ids": ["60000a6e62ddc3ae0c3b7ef80802ee71"], "statement_hash": "6a7283c8b92d0663e05728d26d406516f01a522c2433821f328a072f69e8d6c2"}}, {"rule": 2, "type": "equivalent", "target": "9bd2c80a3ef9ebab0fa8c15b085cb9d4", "evidence": {"same_day": true, "patch_ids": ["60000a6e62ddc3ae0c3b7ef80802ee71"], "statement_hash": "6a7283c8b92d0663e05728d26d406516f01a522c2433821f328a072f69e8d6c2"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "9bd2c80a3ef9ebab0fa8c15b085cb9d4", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 EXPLAIN 在逆解析 SQL/JSON 聚合时失败的问题", "evidence": {"same_day": true, "patch_ids": ["60000a6e62ddc3ae0c3b7ef80802ee71"], "statement_hash": "6a7283c8b92d0663e05728d26d406516f01a522c2433821f328a072f69e8d6c2"}, "url": "/docs/compare/?release=18.6#18.6-604b807a12c59a87", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "9796917e37d7742de7735ae20dbc9e8c", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 EXPLAIN 在逆解析 SQL/JSON 聚合时失败的问题", "evidence": {"same_day": true, "patch_ids": ["60000a6e62ddc3ae0c3b7ef80802ee71"], "statement_hash": "6a7283c8b92d0663e05728d26d406516f01a522c2433821f328a072f69e8d6c2"}, "url": "/docs/compare/?release=16.15#16.15-355171a4f97e88f7", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}]}, {"id": "17.11-5f6921ca5abdfb75", "cves": [], "html": "修复 REINDEX CONCURRENTLY 与可延迟唯一约束一起使用时的问题（Nitin Motiani）§
在 REINDEX CONCURRENTLY 期间创建的临时索引副本被错误地标记为强制立即满足唯一性，导致虚假的约束违例报告。
修复 to_date() 对本地化月份名和星期名的匹配（Heikki Linnakangas）§
当大小写折叠改变字符串的字节长度时，匹配逻辑会出现错误行为。
", "text": "修复 to_date() 对本地化月份名和星期名的匹配（Heikki Linnakangas）§ 当大小写折叠改变字符串的字节长度时，匹配逻辑会出现错误行为。", "title": "修复 to_date() 对本地化月份名和星期名的匹配", "commits": ["8acfaa12a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "348e3f6e7d65bcfa35e478707a8ff7f2a921b6fad5c9c645a9afc3aba7b4bad2", "section_path": ["变更"], "commit_groups": [["011384ba4", "0de744cd5", "49a712f32", "55ea76426", "8acfaa12a", "b594efe52", "fd2b89854"]], "identity_text": "Fix matching of localized month/day names in to_date() (Heikki Linnakangas) The matching logic misbehaved in cases where case-folding changes the byte length of the string.", "commit_aliases": ["011384ba4", "0de744cd5", "49a712f32", "55ea76426", "8acfaa12a", "b594efe52", "fd2b89854"], "source_commits": ["8acfaa12a"], "source_entry_id": "17.11/changes/041", "db_id": "b0d8986fede0f1216361d5a43a076e4e", "patch_ids": ["b8ca654311e23485845960b9d01e76fc"], "statement_hash": "ef6d4c6554fba5da9f815beec3f0b6e84e2334ba9bd093035db08b8e3c61e1da", "relations": [{"rule": 2, "type": "equivalent", "target": "0800233346f3a252c62d9a6f579d5573", "evidence": {"same_day": true, "patch_ids": ["b8ca654311e23485845960b9d01e76fc"], "statement_hash": "ef6d4c6554fba5da9f815beec3f0b6e84e2334ba9bd093035db08b8e3c61e1da"}}, {"rule": 2, "type": "equivalent", "target": "08bd69e7cd8f7b8bd4623958f924ac19", "evidence": {"same_day": true, "patch_ids": ["b8ca654311e23485845960b9d01e76fc"], "statement_hash": "ef6d4c6554fba5da9f815beec3f0b6e84e2334ba9bd093035db08b8e3c61e1da"}}, {"rule": 2, "type": "equivalent", "target": "d3800c6695b429dd746c574f0d0d93e5", "evidence": {"same_day": true, "patch_ids": ["b8ca654311e23485845960b9d01e76fc"], "statement_hash": "ef6d4c6554fba5da9f815beec3f0b6e84e2334ba9bd093035db08b8e3c61e1da"}}, {"rule": 2, "type": "related", "target": "eb74da46a95f0db0c15adface2feaffa", "evidence": {"same_day": true, "patch_ids": ["b8ca654311e23485845960b9d01e76fc"], "statement_hash": "ef6d4c6554fba5da9f815beec3f0b6e84e2334ba9bd093035db08b8e3c61e1da"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "eb74da46a95f0db0c15adface2feaffa", "kind": "related", "version": "18.6", "label": "18.6", "title": "修复 to_date() 对本地化月份名和星期名的匹配", "evidence": {"same_day": true, "patch_ids": ["b8ca654311e23485845960b9d01e76fc"], "statement_hash": "ef6d4c6554fba5da9f815beec3f0b6e84e2334ba9bd093035db08b8e3c61e1da"}, "url": "/docs/compare/?release=18.6#18.6-937d0b3149314116", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "08bd69e7cd8f7b8bd4623958f924ac19", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 to_date() 对本地化月份名和星期名的匹配", "evidence": {"same_day": true, "patch_ids": ["b8ca654311e23485845960b9d01e76fc"], "statement_hash": "ef6d4c6554fba5da9f815beec3f0b6e84e2334ba9bd093035db08b8e3c61e1da"}, "url": "/docs/compare/?release=16.15#16.15-6af7d41f64cafafa", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "0800233346f3a252c62d9a6f579d5573", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 to_date() 对本地化月份名和星期名的匹配", "evidence": {"same_day": true, "patch_ids": ["b8ca654311e23485845960b9d01e76fc"], "statement_hash": "ef6d4c6554fba5da9f815beec3f0b6e84e2334ba9bd093035db08b8e3c61e1da"}, "url": "/docs/compare/?release=15.19#15.19-a96cc8b4c22ffe2e", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "d3800c6695b429dd746c574f0d0d93e5", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 to_date() 对本地化月份名和星期名的匹配", "evidence": {"same_day": true, "patch_ids": ["b8ca654311e23485845960b9d01e76fc"], "statement_hash": "ef6d4c6554fba5da9f815beec3f0b6e84e2334ba9bd093035db08b8e3c61e1da"}, "url": "/docs/compare/?release=14.24#14.24-8ab3e783a00643a8", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-ed1426e8e931d4ba", "cves": [], "html": "修复谚文 U+11A7 (TBASE) 的 NFC 重组错误（Diego Frias、Michael Paquier）§
\n该字符被当作有效的 T 音节，但实际上并非如此，因此在规范化过程中被悄然吞掉。
", "text": "修复谚文 U+11A7 (TBASE) 的 NFC 重组错误（Diego Frias、Michael Paquier）§ 该字符被当作有效的 T 音节，但实际上并非如此，因此在规范化过程中被悄然吞掉。", "title": "修复谚文 U+11A7 (TBASE) 的 NFC 重组错误", "commits": ["0c9cbbfb5"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "241cb4b168670c1d28f9f1ac0fe24db0eb422b121b343451a6ba6865e0e9e9f2", "section_path": ["变更"], "commit_groups": [["0c9cbbfb5", "273fe9485", "82116023e", "8bb935d61", "c391375ba", "f2ff15e4c"]], "identity_text": "Fix incorrect NFC recomposition for Hangul U+11A7 (TBASE) (Diego Frias, Michael Paquier) This character was treated as a valid T syllable, which it is not, and hence silently swallowed during normalization.", "commit_aliases": ["0c9cbbfb5", "273fe9485", "82116023e", "8bb935d61", "c391375ba", "f2ff15e4c"], "source_commits": ["0c9cbbfb5"], "source_entry_id": "17.11/changes/042", "db_id": "955b29dab0dd740875781e1df1992bdc", "patch_ids": ["725250db9eb55dab240d380ece2a835b"], "statement_hash": "0790cf6e3b0bbc225a449fee5cfdf5d70b4c6b23cc6777393156d83479c1c717", "relations": [{"rule": 2, "type": "equivalent", "target": "3a6050c2cb2fe8b496eaa4963a657d6a", "evidence": {"same_day": true, "patch_ids": ["725250db9eb55dab240d380ece2a835b"], "statement_hash": "0790cf6e3b0bbc225a449fee5cfdf5d70b4c6b23cc6777393156d83479c1c717"}}, {"rule": 2, "type": "equivalent", "target": "3ca62c531cc3952831a57b828ba3be6f", "evidence": {"same_day": true, "patch_ids": ["725250db9eb55dab240d380ece2a835b"], "statement_hash": "0790cf6e3b0bbc225a449fee5cfdf5d70b4c6b23cc6777393156d83479c1c717"}}, {"rule": 2, "type": "equivalent", "target": "aaef9ba320136440f8b0a3ec12c67f23", "evidence": {"same_day": true, "patch_ids": ["725250db9eb55dab240d380ece2a835b"], "statement_hash": "0790cf6e3b0bbc225a449fee5cfdf5d70b4c6b23cc6777393156d83479c1c717"}}, {"rule": 2, "type": "equivalent", "target": "b4da21230a332d29b7fdd0c30e5eb1b0", "evidence": {"same_day": true, "patch_ids": ["725250db9eb55dab240d380ece2a835b"], "statement_hash": "0790cf6e3b0bbc225a449fee5cfdf5d70b4c6b23cc6777393156d83479c1c717"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "3a6050c2cb2fe8b496eaa4963a657d6a", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复谚文 U+11A7 (TBASE) 的 NFC 重组错误", "evidence": {"same_day": true, "patch_ids": ["725250db9eb55dab240d380ece2a835b"], "statement_hash": "0790cf6e3b0bbc225a449fee5cfdf5d70b4c6b23cc6777393156d83479c1c717"}, "url": "/docs/compare/?release=18.6#18.6-bad72301bf213a01", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "b4da21230a332d29b7fdd0c30e5eb1b0", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复谚文 U+11A7 (TBASE) 的 NFC 重组错误", "evidence": {"same_day": true, "patch_ids": ["725250db9eb55dab240d380ece2a835b"], "statement_hash": "0790cf6e3b0bbc225a449fee5cfdf5d70b4c6b23cc6777393156d83479c1c717"}, "url": "/docs/compare/?release=16.15#16.15-b06391696fc6a94f", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "aaef9ba320136440f8b0a3ec12c67f23", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复谚文 U+11A7 (TBASE) 的 NFC 重组错误", "evidence": {"same_day": true, "patch_ids": ["725250db9eb55dab240d380ece2a835b"], "statement_hash": "0790cf6e3b0bbc225a449fee5cfdf5d70b4c6b23cc6777393156d83479c1c717"}, "url": "/docs/compare/?release=15.19#15.19-dab67300bc6bbe1f", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "3ca62c531cc3952831a57b828ba3be6f", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复谚文 U+11A7 (TBASE) 的 NFC 重组错误", "evidence": {"same_day": true, "patch_ids": ["725250db9eb55dab240d380ece2a835b"], "statement_hash": "0790cf6e3b0bbc225a449fee5cfdf5d70b4c6b23cc6777393156d83479c1c717"}, "url": "/docs/compare/?release=14.24#14.24-68c56e11fd51d378", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-a4695342e5fc0fc7", "cves": [], "html": "避免不区分大小写的 synonym 词典可能截断输出词位（Jeff Davis）§
如果折叠为小写增加了词位的字节长度，输出时会错误地将其截断为原来的字节长度。
", "text": "避免不区分大小写的 synonym 词典可能截断输出词位（Jeff Davis）§ 如果折叠为小写增加了词位的字节长度，输出时会错误地将其截断为原来的字节长度。", "title": "避免不区分大小写的 synonym 词典可能截断输出词位", "commits": ["3805641cb"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "66e2b6adec42f13c510c1db797df58f5492f8a61a733f418ff93abfdf900b2c1", "section_path": ["变更"], "commit_groups": [["1e0458172", "3805641cb", "89e648498", "9234e3337", "a7e0e42a2", "b32df590c"]], "identity_text": "Avoid possible truncation of output lexemes in case-insensitive synonym dictionaries (Jeff Davis) If folding to lower case increased the byte length of a lexeme, it was incorrectly truncated to its original byte length when emitted.", "commit_aliases": ["1e0458172", "3805641cb", "89e648498", "9234e3337", "a7e0e42a2", "b32df590c"], "source_commits": ["3805641cb"], "source_entry_id": "17.11/changes/043", "db_id": "a4a88f042e4bc74a3646ee98fc6e3a95", "patch_ids": ["751e547292fa99c95c843d27d6c9593a"], "statement_hash": "c66911e6e36c7126e1b585143d9e9b87d38db4e29cfb38c6987eff4e2c4f70d3", "relations": [{"rule": 2, "type": "equivalent", "target": "0633548b5897af860062f0da29c48e44", "evidence": {"same_day": true, "patch_ids": ["751e547292fa99c95c843d27d6c9593a"], "statement_hash": "c66911e6e36c7126e1b585143d9e9b87d38db4e29cfb38c6987eff4e2c4f70d3"}}, {"rule": 2, "type": "equivalent", "target": "347d8e16786f9262348eddb4e4ab7132", "evidence": {"same_day": true, "patch_ids": ["751e547292fa99c95c843d27d6c9593a"], "statement_hash": "c66911e6e36c7126e1b585143d9e9b87d38db4e29cfb38c6987eff4e2c4f70d3"}}, {"rule": 2, "type": "equivalent", "target": "3af409a2d71c7fbd1a45975cdba31ea0", "evidence": {"same_day": true, "patch_ids": ["751e547292fa99c95c843d27d6c9593a"], "statement_hash": "c66911e6e36c7126e1b585143d9e9b87d38db4e29cfb38c6987eff4e2c4f70d3"}}, {"rule": 2, "type": "equivalent", "target": "ae43518b0809db4841928b42a3de5142", "evidence": {"same_day": true, "patch_ids": ["751e547292fa99c95c843d27d6c9593a"], "statement_hash": "c66911e6e36c7126e1b585143d9e9b87d38db4e29cfb38c6987eff4e2c4f70d3"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "347d8e16786f9262348eddb4e4ab7132", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "避免不区分大小写的 synonym 词典可能截断输出词位", "evidence": {"same_day": true, "patch_ids": ["751e547292fa99c95c843d27d6c9593a"], "statement_hash": "c66911e6e36c7126e1b585143d9e9b87d38db4e29cfb38c6987eff4e2c4f70d3"}, "url": "/docs/compare/?release=18.6#18.6-3c978527782bcd11", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "ae43518b0809db4841928b42a3de5142", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "避免不区分大小写的 synonym 词典可能截断输出词位", "evidence": {"same_day": true, "patch_ids": ["751e547292fa99c95c843d27d6c9593a"], "statement_hash": "c66911e6e36c7126e1b585143d9e9b87d38db4e29cfb38c6987eff4e2c4f70d3"}, "url": "/docs/compare/?release=16.15#16.15-2163d6f45ee0d876", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "0633548b5897af860062f0da29c48e44", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "避免不区分大小写的 synonym 词典可能截断输出词位", "evidence": {"same_day": true, "patch_ids": ["751e547292fa99c95c843d27d6c9593a"], "statement_hash": "c66911e6e36c7126e1b585143d9e9b87d38db4e29cfb38c6987eff4e2c4f70d3"}, "url": "/docs/compare/?release=15.19#15.19-28d4f1c94a8ecc1a", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "3af409a2d71c7fbd1a45975cdba31ea0", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "避免不区分大小写的 synonym 词典可能截断输出词位", "evidence": {"same_day": true, "patch_ids": ["751e547292fa99c95c843d27d6c9593a"], "statement_hash": "c66911e6e36c7126e1b585143d9e9b87d38db4e29cfb38c6987eff4e2c4f70d3"}, "url": "/docs/compare/?release=14.24#14.24-c33079f2a44ffdbd", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-650fe2adca4c15c7", "cves": [], "html": "增强大小写转换逻辑对截断 UTF-8 字符的防护（Jeff Davis）§
", "text": "增强大小写转换逻辑对截断 UTF-8 字符的防护（Jeff Davis）§", "title": "增强大小写转换逻辑对截断 UTF-8 字符的防护", "commits": ["5e78ebca5"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "48a51008dbe99f8b52625a5ae5387900f6f57b45d11f312d8b6b0bbfee67b74e", "section_path": ["变更"], "commit_groups": [["05da336dd", "21ffc271d", "5e78ebca5", "9021c8f3c"]], "identity_text": "Defend against truncated UTF-8 characters in case-conversion logic (Jeff Davis)", "commit_aliases": ["05da336dd", "21ffc271d", "5e78ebca5", "9021c8f3c"], "source_commits": ["5e78ebca5"], "source_entry_id": "17.11/changes/044", "db_id": "6587fa053296846f315df1024b486ffb", "patch_ids": ["70ade08782c5c0086629edb156a1a000"], "statement_hash": "b8ea4712aa3d1f59707ea58deb088497b6eb664982552c1833b1fdb40b14fc59", "relations": [{"rule": 2, "type": "equivalent", "target": "fbf07b5b0ddd47273177153e01d4ca58", "evidence": {"same_day": true, "patch_ids": ["70ade08782c5c0086629edb156a1a000"], "statement_hash": "b8ea4712aa3d1f59707ea58deb088497b6eb664982552c1833b1fdb40b14fc59"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "fbf07b5b0ddd47273177153e01d4ca58", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "增强大小写转换逻辑对截断 UTF-8 字符的防护", "evidence": {"same_day": true, "patch_ids": ["70ade08782c5c0086629edb156a1a000"], "statement_hash": "b8ea4712aa3d1f59707ea58deb088497b6eb664982552c1833b1fdb40b14fc59"}, "url": "/docs/compare/?release=18.6#18.6-fcede1358593efe6", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-f5ccad03da59d5de", "cves": [], "html": "修复 hash_record_extended() 中的拼写错误（Man Zeng）§
代码未初始化传给 FunctionCallInvoke() 的第二个 isnull 参数。对于现有的核心内置扩展 hash 支持函数，这不会造成影响，因为它们不会检查该值。不过，如果扩展提供的 hash 函数检查 PG_ARGISNULL(1)，就可能受到影响。
修复 pg_get_publication_tables() 在可发布表被并发删除时失败的问题（Bharath Rupireddy）§
防止 satisfies_hash_partition() 在使用 VARIADIC NULL 时崩溃（Robert Haas）§
使 tsvector_filter() 及相关函数以更清晰且一致的方式报告无效权重错误（Ewan Young）§
特别是，以八进制形式（\\）报告不是可打印 ASCII 字符的权重字符，就像 nnncharout() 对它们的呈现方式一样。这可以避免生成编码无效的错误消息。
修复 xpath() 对命名空间节点处理不当的问题（Michael Paquier）§ §
此修复避免了意外的 “could not copy node” 错误。
", "text": "修复 xpath() 对命名空间节点处理不当的问题（Michael Paquier）§ § 此修复避免了意外的 “could not copy node” 错误。", "title": "修复 xpath() 对命名空间节点处理不当的问题", "commits": ["6c08cbb7a", "940916549"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "3da81505d192ba36c6aad7605ecf403ed2f7cca793a8b78dd2ad9c1cdc52ec2f", "section_path": ["变更"], "commit_groups": [["0b74df66f", "0d145be2c", "940916549", "9618e790c", "a17f39aa2", "fac26fd41"], ["174076601", "1d8c72b2e", "41876c8d7", "4c777d6dd", "6c08cbb7a", "8bf257aeb"]], "identity_text": "Fix mishandling of namespace nodes in xpath() (Michael Paquier) This fix avoids an unexpected could not copy node error.", "commit_aliases": ["0b74df66f", "0d145be2c", "174076601", "1d8c72b2e", "41876c8d7", "4c777d6dd", "6c08cbb7a", "8bf257aeb", "940916549", "9618e790c", "a17f39aa2", "fac26fd41"], "source_commits": ["6c08cbb7a", "940916549"], "source_entry_id": "17.11/changes/049", "db_id": "a3cd7c73a5609ef9df5a2f2035307742", "patch_ids": ["702367d070cdeca227ba0e4197a518e9", "7df9ed5e8663765f5ca836c89d33f03d"], "statement_hash": "2ab954d63190bf0ecdc409c287a734a5049667a3d9db9dc5337f82a35275db37", "relations": [{"rule": 2, "type": "equivalent", "target": "9d61a6c023f441c2a3883f44804564ca", "evidence": {"same_day": true, "patch_ids": ["702367d070cdeca227ba0e4197a518e9", "7df9ed5e8663765f5ca836c89d33f03d"], "statement_hash": "2ab954d63190bf0ecdc409c287a734a5049667a3d9db9dc5337f82a35275db37"}}, {"rule": 2, "type": "equivalent", "target": "c9299f10a2be68af64d82e072893d1fa", "evidence": {"same_day": true, "patch_ids": ["702367d070cdeca227ba0e4197a518e9", "7df9ed5e8663765f5ca836c89d33f03d"], "statement_hash": "2ab954d63190bf0ecdc409c287a734a5049667a3d9db9dc5337f82a35275db37"}}, {"rule": 2, "type": "equivalent", "target": "d35a51c2f2bcdba360c287240fa92b7a", "evidence": {"same_day": true, "patch_ids": ["702367d070cdeca227ba0e4197a518e9", "7df9ed5e8663765f5ca836c89d33f03d"], "statement_hash": "2ab954d63190bf0ecdc409c287a734a5049667a3d9db9dc5337f82a35275db37"}}, {"rule": 2, "type": "equivalent", "target": "da05c3ee44af186be3d4b5b7c6f0afe4", "evidence": {"same_day": true, "patch_ids": ["702367d070cdeca227ba0e4197a518e9", "7df9ed5e8663765f5ca836c89d33f03d"], "statement_hash": "2ab954d63190bf0ecdc409c287a734a5049667a3d9db9dc5337f82a35275db37"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "9d61a6c023f441c2a3883f44804564ca", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 xpath() 对命名空间节点处理不当的问题", "evidence": {"same_day": true, "patch_ids": ["702367d070cdeca227ba0e4197a518e9", "7df9ed5e8663765f5ca836c89d33f03d"], "statement_hash": "2ab954d63190bf0ecdc409c287a734a5049667a3d9db9dc5337f82a35275db37"}, "url": "/docs/compare/?release=18.6#18.6-a9563797105c5be3", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "da05c3ee44af186be3d4b5b7c6f0afe4", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 xpath() 对命名空间节点处理不当的问题", "evidence": {"same_day": true, "patch_ids": ["702367d070cdeca227ba0e4197a518e9", "7df9ed5e8663765f5ca836c89d33f03d"], "statement_hash": "2ab954d63190bf0ecdc409c287a734a5049667a3d9db9dc5337f82a35275db37"}, "url": "/docs/compare/?release=16.15#16.15-3d663bf2b0295097", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "c9299f10a2be68af64d82e072893d1fa", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 xpath() 对命名空间节点处理不当的问题", "evidence": {"same_day": true, "patch_ids": ["702367d070cdeca227ba0e4197a518e9", "7df9ed5e8663765f5ca836c89d33f03d"], "statement_hash": "2ab954d63190bf0ecdc409c287a734a5049667a3d9db9dc5337f82a35275db37"}, "url": "/docs/compare/?release=15.19#15.19-4ef656410724db83", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "d35a51c2f2bcdba360c287240fa92b7a", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 xpath() 对命名空间节点处理不当的问题", "evidence": {"same_day": true, "patch_ids": ["702367d070cdeca227ba0e4197a518e9", "7df9ed5e8663765f5ca836c89d33f03d"], "statement_hash": "2ab954d63190bf0ecdc409c287a734a5049667a3d9db9dc5337f82a35275db37"}, "url": "/docs/compare/?release=14.24#14.24-c7c54909a4e7d896", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-3a52211bf75efb3d", "cves": [], "html": "修复 jsonpath 的 .decimal 方法对无效精度或小数位数抛出硬错误的问题（Ewan Young）§ §
静默模式本应抑制这些错误，但未能做到。
", "text": "修复 jsonpath 的 .decimal 方法对无效精度或小数位数抛出硬错误的问题（Ewan Young）§ § 静默模式本应抑制这些错误，但未能做到。", "title": "修复 jsonpath 的 .decimal 方法对无效精度或小数位数抛出硬错误的问题", "commits": ["ab35b8d25", "c768637d6"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "4f788c13d3cf913c1bb1475ae9a6bc40fbddb908b558c8cf27ad78f08366da26", "section_path": ["变更"], "commit_groups": [["5bbc9b300", "7b12ae729", "84001a04d", "ab35b8d25"], ["90789900b", "c768637d6"]], "identity_text": "Fix jsonpath's .decimal method to not throw a hard error for incorrect precision or scale (Ewan Young) Silent mode should suppress these errors, but failed to.", "commit_aliases": ["5bbc9b300", "7b12ae729", "84001a04d", "90789900b", "ab35b8d25", "c768637d6"], "source_commits": ["ab35b8d25", "c768637d6"], "source_entry_id": "17.11/changes/050", "db_id": "151967124db1018c14bba6aaa8fb0531", "patch_ids": ["154a264168d2701e57e668c30f8c6672", "a933e072e485a711920d54cb328279be"], "statement_hash": "c504d01401e67b15f04b83edbe81331d59a4135c0f6c1aae9aeea83bf5ceb972", "relations": [{"rule": 2, "type": "equivalent", "target": "e2b61ba2f7f1acf6259668e5028c0d3a", "evidence": {"same_day": true, "patch_ids": ["154a264168d2701e57e668c30f8c6672", "a933e072e485a711920d54cb328279be"], "statement_hash": "c504d01401e67b15f04b83edbe81331d59a4135c0f6c1aae9aeea83bf5ceb972"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "e2b61ba2f7f1acf6259668e5028c0d3a", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 jsonpath 的 .decimal 方法对无效精度或小数位数抛出硬错误的问题", "evidence": {"same_day": true, "patch_ids": ["154a264168d2701e57e668c30f8c6672", "a933e072e485a711920d54cb328279be"], "statement_hash": "c504d01401e67b15f04b83edbe81331d59a4135c0f6c1aae9aeea83bf5ceb972"}, "url": "/docs/compare/?release=18.6#18.6-9490e3fbcfd0ff13", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-b72bd4ebdcd34344", "cves": [], "html": "修复 IS JSON 或类似构造的参数属于字符串类别但缺少到 text 类型的类型转换时发生的空指针崩溃（Ayush Tiwari）§
PostgreSQL 核心中没有这种数据类型，但某些扩展类型可以触发该问题。
", "text": "修复 IS JSON 或类似构造的参数属于字符串类别但缺少到 text 类型的类型转换时发生的空指针崩溃（Ayush Tiwari）§ PostgreSQL 核心中没有这种数据类型，但某些扩展类型可以触发该问题。", "title": "修复 IS JSON 或类似构造的参数属于字符串类别但缺少到 text 类型的类型转换时发生的空指针崩溃", "commits": ["d0acd2535"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "228c48e005653d221e7d0cff48629b67824ecd5d1047ae2ccb291a194b6b3609", "section_path": ["变更"], "commit_groups": [["35d9a6263", "60abb3c73", "7dd153259", "d0acd2535"]], "identity_text": "Fix NULL-pointer crash when IS JSON or similar constructs have an argument that is of string category but lacks a cast to type text (Ayush Tiwari) There are no such data types in core PostgreSQL, but the problem is reachable with some extension types.", "commit_aliases": ["35d9a6263", "60abb3c73", "7dd153259", "d0acd2535"], "source_commits": ["d0acd2535"], "source_entry_id": "17.11/changes/051", "db_id": "79cd8a83e8bf1bc35f530164bf6860b4", "patch_ids": ["96b46719db446e88ef3c60d115404730"], "statement_hash": "ea987d289e305c0b161cfa39b9d0169ba382dac0fa72d5593a7a281f289b9a70", "relations": [{"rule": 2, "type": "equivalent", "target": "2fbf45f00e42445fcae00d71cbf1f0dc", "evidence": {"same_day": true, "patch_ids": ["96b46719db446e88ef3c60d115404730"], "statement_hash": "ea987d289e305c0b161cfa39b9d0169ba382dac0fa72d5593a7a281f289b9a70"}}, {"rule": 2, "type": "equivalent", "target": "f8921df2d66db8b26d617c27bddf1db2", "evidence": {"same_day": true, "patch_ids": ["96b46719db446e88ef3c60d115404730"], "statement_hash": "ea987d289e305c0b161cfa39b9d0169ba382dac0fa72d5593a7a281f289b9a70"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "2fbf45f00e42445fcae00d71cbf1f0dc", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 IS JSON 或类似构造的参数属于字符串类别但缺少到 text 类型的类型转换时发生的空指针崩溃", "evidence": {"same_day": true, "patch_ids": ["96b46719db446e88ef3c60d115404730"], "statement_hash": "ea987d289e305c0b161cfa39b9d0169ba382dac0fa72d5593a7a281f289b9a70"}, "url": "/docs/compare/?release=18.6#18.6-2abf51fa81b5fec1", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "f8921df2d66db8b26d617c27bddf1db2", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 IS JSON 或类似构造的参数属于字符串类别但缺少到 text 类型的类型转换时发生的空指针崩溃", "evidence": {"same_day": true, "patch_ids": ["96b46719db446e88ef3c60d115404730"], "statement_hash": "ea987d289e305c0b161cfa39b9d0169ba382dac0fa72d5593a7a281f289b9a70"}, "url": "/docs/compare/?release=16.15#16.15-c0742c949b99bd57", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}]}, {"id": "17.11-17dc3fca15a1c17a", "cves": [], "html": "确保 SQL/JSON 的 ON EMPTY / ON ERROR DEFAULT 值按正确的 typmod 进行强制转换（Ewan Young）§
例如，numeric 目标列所声明的精度和小数位数此前没有应用于默认值。
避免将最小的 money 值除以 -1 时出现依赖机器的行为（Andrey Rachitskiy）§
修复为文本检索词典创建缓存条目的过程中发生内存不足后导致的崩溃（Tom Lane）§
", "text": "修复为文本检索词典创建缓存条目的过程中发生内存不足后导致的崩溃（Tom Lane）§", "title": "修复为文本检索词典创建缓存条目的过程中发生内存不足后导致的崩溃", "commits": ["634a8dcb8"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "5b9c86df2c8762e49471474a954be9307c93ae26311f16e3f1e558492aae80cf", "section_path": ["变更"], "commit_groups": [["025228104", "4e68b7e29", "634a8dcb8", "81b1e7916", "83336e3ed", "dda622edc", "df8407d7d"]], "identity_text": "Fix crash after out-of-memory failure partway through creation of a cache entry for a text search dictionary (Tom Lane)", "commit_aliases": ["025228104", "4e68b7e29", "634a8dcb8", "81b1e7916", "83336e3ed", "dda622edc", "df8407d7d"], "source_commits": ["634a8dcb8"], "source_entry_id": "17.11/changes/054", "db_id": "b1fc0de5d2d692ed4af6bcafccb53961", "patch_ids": ["3c3b45b5ca2c2212b9a36ad4558d619a"], "statement_hash": "bba5519e5078b4a32c843646cda9fbb9119cc591d67acb786924d35be185c1e2", "relations": [{"rule": 2, "type": "equivalent", "target": "0c1ad5d57b9bccac58da6089309d8ba7", "evidence": {"same_day": true, "patch_ids": ["3c3b45b5ca2c2212b9a36ad4558d619a"], "statement_hash": "bba5519e5078b4a32c843646cda9fbb9119cc591d67acb786924d35be185c1e2"}}, {"rule": 2, "type": "equivalent", "target": "7df44ef8cf990bb0e618cec50c164949", "evidence": {"same_day": true, "patch_ids": ["3c3b45b5ca2c2212b9a36ad4558d619a"], "statement_hash": "bba5519e5078b4a32c843646cda9fbb9119cc591d67acb786924d35be185c1e2"}}, {"rule": 2, "type": "equivalent", "target": "b0c7268f189c5a8d74b8439d4bc7c5d9", "evidence": {"same_day": true, "patch_ids": ["3c3b45b5ca2c2212b9a36ad4558d619a"], "statement_hash": "bba5519e5078b4a32c843646cda9fbb9119cc591d67acb786924d35be185c1e2"}}, {"rule": 2, "type": "equivalent", "target": "c02824b6af588491530569e4ec99fe1c", "evidence": {"same_day": true, "patch_ids": ["3c3b45b5ca2c2212b9a36ad4558d619a"], "statement_hash": "bba5519e5078b4a32c843646cda9fbb9119cc591d67acb786924d35be185c1e2"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "c02824b6af588491530569e4ec99fe1c", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复为文本检索词典创建缓存条目的过程中发生内存不足后导致的崩溃", "evidence": {"same_day": true, "patch_ids": ["3c3b45b5ca2c2212b9a36ad4558d619a"], "statement_hash": "bba5519e5078b4a32c843646cda9fbb9119cc591d67acb786924d35be185c1e2"}, "url": "/docs/compare/?release=18.6#18.6-8f91828547f09bb4", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "7df44ef8cf990bb0e618cec50c164949", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复为文本检索词典创建缓存条目的过程中发生内存不足后导致的崩溃", "evidence": {"same_day": true, "patch_ids": ["3c3b45b5ca2c2212b9a36ad4558d619a"], "statement_hash": "bba5519e5078b4a32c843646cda9fbb9119cc591d67acb786924d35be185c1e2"}, "url": "/docs/compare/?release=16.15#16.15-23f510e2538b04c8", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "b0c7268f189c5a8d74b8439d4bc7c5d9", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复为文本检索词典创建缓存条目的过程中发生内存不足后导致的崩溃", "evidence": {"same_day": true, "patch_ids": ["3c3b45b5ca2c2212b9a36ad4558d619a"], "statement_hash": "bba5519e5078b4a32c843646cda9fbb9119cc591d67acb786924d35be185c1e2"}, "url": "/docs/compare/?release=15.19#15.19-a430cbb8698c9246", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "0c1ad5d57b9bccac58da6089309d8ba7", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复为文本检索词典创建缓存条目的过程中发生内存不足后导致的崩溃", "evidence": {"same_day": true, "patch_ids": ["3c3b45b5ca2c2212b9a36ad4558d619a"], "statement_hash": "bba5519e5078b4a32c843646cda9fbb9119cc591d67acb786924d35be185c1e2"}, "url": "/docs/compare/?release=14.24#14.24-f3e3230fd7374279", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-ce317c73e36b1b1b", "cves": [], "html": "修复处理格式错误的 ispell/hunspell 词典文件时的内存安全缺陷（Andrey Rachitskiy）§
", "text": "修复处理格式错误的 ispell/hunspell 词典文件时的内存安全缺陷（Andrey Rachitskiy）§", "title": "修复处理格式错误的 ispell/hunspell 词典文件时的内存安全缺陷", "commits": ["5fdea3aa3"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "3b27aef597df5be32f06c53b78faee630d6e95eb5e6631a2972738395a8e7dca", "section_path": ["变更"], "commit_groups": [["0fb88979b", "330a72052", "3fe4062cc", "444038bb7", "4689ea9ce", "5fdea3aa3", "cfc720ef4"]], "identity_text": "Fix memory-safety bugs in processing of incorrect ispell/hunspell dictionary files (Andrey Rachitskiy)", "commit_aliases": ["0fb88979b", "330a72052", "3fe4062cc", "444038bb7", "4689ea9ce", "5fdea3aa3", "cfc720ef4"], "source_commits": ["5fdea3aa3"], "source_entry_id": "17.11/changes/055", "db_id": "5e12745b9a23fea83bd8ffdb594c44cb", "patch_ids": ["a2481aa7491246722b292cb1e96c16e2"], "statement_hash": "188f51f4de54b27a68f6be9927610ed299c71a8aed01714563e401acac778944", "relations": [{"rule": 2, "type": "equivalent", "target": "704f65f60aac8a5ed9ba34cc041d5717", "evidence": {"same_day": true, "patch_ids": ["a2481aa7491246722b292cb1e96c16e2"], "statement_hash": "188f51f4de54b27a68f6be9927610ed299c71a8aed01714563e401acac778944"}}, {"rule": 2, "type": "equivalent", "target": "764e3f0a6b15565637fa481647bae444", "evidence": {"same_day": true, "patch_ids": ["a2481aa7491246722b292cb1e96c16e2"], "statement_hash": "188f51f4de54b27a68f6be9927610ed299c71a8aed01714563e401acac778944"}}, {"rule": 2, "type": "equivalent", "target": "77ab5557c03ca1e42e47d51eb237608a", "evidence": {"same_day": true, "patch_ids": ["a2481aa7491246722b292cb1e96c16e2"], "statement_hash": "188f51f4de54b27a68f6be9927610ed299c71a8aed01714563e401acac778944"}}, {"rule": 2, "type": "equivalent", "target": "bff681fe60683158629758d3a37c8488", "evidence": {"same_day": true, "patch_ids": ["a2481aa7491246722b292cb1e96c16e2"], "statement_hash": "188f51f4de54b27a68f6be9927610ed299c71a8aed01714563e401acac778944"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "704f65f60aac8a5ed9ba34cc041d5717", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复处理格式错误的 ispell/hunspell 词典文件时的内存安全缺陷", "evidence": {"same_day": true, "patch_ids": ["a2481aa7491246722b292cb1e96c16e2"], "statement_hash": "188f51f4de54b27a68f6be9927610ed299c71a8aed01714563e401acac778944"}, "url": "/docs/compare/?release=18.6#18.6-df42fd80a3fef364", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "77ab5557c03ca1e42e47d51eb237608a", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复处理格式错误的 ispell/hunspell 词典文件时的内存安全缺陷", "evidence": {"same_day": true, "patch_ids": ["a2481aa7491246722b292cb1e96c16e2"], "statement_hash": "188f51f4de54b27a68f6be9927610ed299c71a8aed01714563e401acac778944"}, "url": "/docs/compare/?release=16.15#16.15-9a0f56094a25e9db", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "bff681fe60683158629758d3a37c8488", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复处理格式错误的 ispell/hunspell 词典文件时的内存安全缺陷", "evidence": {"same_day": true, "patch_ids": ["a2481aa7491246722b292cb1e96c16e2"], "statement_hash": "188f51f4de54b27a68f6be9927610ed299c71a8aed01714563e401acac778944"}, "url": "/docs/compare/?release=15.19#15.19-12f2c81d2dc1af7f", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "764e3f0a6b15565637fa481647bae444", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复处理格式错误的 ispell/hunspell 词典文件时的内存安全缺陷", "evidence": {"same_day": true, "patch_ids": ["a2481aa7491246722b292cb1e96c16e2"], "statement_hash": "188f51f4de54b27a68f6be9927610ed299c71a8aed01714563e401acac778944"}, "url": "/docs/compare/?release=14.24#14.24-88bcd2945f60cd6c", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-712f69030e2d06d3", "cves": [], "html": "禁止访问其他会话的临时表（Jim Jones、Daniil Davydov、Alexander Korotkov）§ §
\n某些代码路径未能阻止这种访问，导致在没有报错的情况下得到错误（不一致）的结果。
", "text": "禁止访问其他会话的临时表（Jim Jones、Daniil Davydov、Alexander Korotkov）§ § 某些代码路径未能阻止这种访问，导致在没有报错的情况下得到错误（不一致）的结果。", "title": "禁止访问其他会话的临时表", "commits": ["4dfae59a1", "4e49f68b7"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "82c09e0dde655494aedd8ccdbdd43eedea0cdb499803ce376a8aabe1d101e34f", "section_path": ["变更"], "commit_groups": [["1b0dd0815", "4dfae59a1", "ce146621f"], ["3aaefe892", "4e49f68b7", "8021cdceb", "c40819ebf", "cc3fe7e2a"]], "identity_text": "Prevent access to other sessions' temporary tables (Jim Jones, Daniil Davydov, Alexander Korotkov) Some code paths failed to prevent this, leading to silently wrong (inconsistent) results.", "commit_aliases": ["1b0dd0815", "3aaefe892", "4dfae59a1", "4e49f68b7", "8021cdceb", "c40819ebf", "cc3fe7e2a", "ce146621f"], "source_commits": ["4dfae59a1", "4e49f68b7"], "source_entry_id": "17.11/changes/056", "db_id": "446bb0cc48d437fdbe5c1c4d4b77a47b", "patch_ids": ["05c640bb8e2093f6ab8c82eace31d407", "78047299bcd9d41b99e91dfc8ff6128f"], "statement_hash": "bfbfb8f49eb1b9a9eeed9932c828c7ac49f313cc1b97070b91d77b3a11bb80b3", "relations": [{"rule": 2, "type": "equivalent", "target": "2b3bc99c3e3caa8f2f62effa65bfd425", "evidence": {"same_day": true, "patch_ids": ["05c640bb8e2093f6ab8c82eace31d407", "78047299bcd9d41b99e91dfc8ff6128f"], "statement_hash": "bfbfb8f49eb1b9a9eeed9932c828c7ac49f313cc1b97070b91d77b3a11bb80b3"}}, {"rule": 2, "type": "equivalent", "target": "c23432cdcb396cd3d3ed58612faea4e6", "evidence": {"same_day": true, "patch_ids": ["05c640bb8e2093f6ab8c82eace31d407", "78047299bcd9d41b99e91dfc8ff6128f"], "statement_hash": "bfbfb8f49eb1b9a9eeed9932c828c7ac49f313cc1b97070b91d77b3a11bb80b3"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "2b3bc99c3e3caa8f2f62effa65bfd425", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "禁止访问其他会话的临时表", "evidence": {"same_day": true, "patch_ids": ["05c640bb8e2093f6ab8c82eace31d407", "78047299bcd9d41b99e91dfc8ff6128f"], "statement_hash": "bfbfb8f49eb1b9a9eeed9932c828c7ac49f313cc1b97070b91d77b3a11bb80b3"}, "url": "/docs/compare/?release=18.6#18.6-90e78edb7a08a279", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "c23432cdcb396cd3d3ed58612faea4e6", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "禁止访问其他会话的临时表", "evidence": {"same_day": true, "patch_ids": ["05c640bb8e2093f6ab8c82eace31d407", "78047299bcd9d41b99e91dfc8ff6128f"], "statement_hash": "bfbfb8f49eb1b9a9eeed9932c828c7ac49f313cc1b97070b91d77b3a11bb80b3"}, "url": "/docs/compare/?release=16.15#16.15-3199fbb2e1d23f9b", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}]}, {"id": "17.11-e7e74333c130ff46", "cves": [], "html": "修复自动清理处理数据库的顺序（Rustam Khamidullin）§
\n它无意中按评分从低到高处理数据库，而正确顺序应当相反。
", "text": "修复自动清理处理数据库的顺序（Rustam Khamidullin）§ 它无意中按评分从低到高处理数据库，而正确顺序应当相反。", "title": "修复自动清理处理数据库的顺序", "commits": ["288d4e83f"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "edd2876c8c61c0441cf1662985fa9d7329083f7194915b70c6c6fae49cc9d051", "section_path": ["变更"], "commit_groups": [["288d4e83f", "4cc49cb70", "b3331578b", "baab3268c"]], "identity_text": "Fix the order in which autovacuum processes databases (Rustam Khamidullin) It was unintentionally processing databases from lowest to highest score, when it should be doing the reverse.", "commit_aliases": ["288d4e83f", "4cc49cb70", "b3331578b", "baab3268c"], "source_commits": ["288d4e83f"], "source_entry_id": "17.11/changes/057", "db_id": "7e5aa2c0c13918b50520756d59c3270c", "patch_ids": ["42b814ceb732c97aa3c3a526508d3abb"], "statement_hash": "c6cdd05a4bedc5971c267480385958b00c43f204b53e4cc0fe52b1e5bf13ea9d", "relations": [{"rule": 2, "type": "equivalent", "target": "b9d8f2a43e4df58e7a17df3fbade9bf4", "evidence": {"same_day": true, "patch_ids": ["42b814ceb732c97aa3c3a526508d3abb"], "statement_hash": "c6cdd05a4bedc5971c267480385958b00c43f204b53e4cc0fe52b1e5bf13ea9d"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "b9d8f2a43e4df58e7a17df3fbade9bf4", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复自动清理处理数据库的顺序", "evidence": {"same_day": true, "patch_ids": ["42b814ceb732c97aa3c3a526508d3abb"], "statement_hash": "c6cdd05a4bedc5971c267480385958b00c43f204b53e4cc0fe52b1e5bf13ea9d"}, "url": "/docs/compare/?release=18.6#18.6-8f425dbb364b3d86", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-94146e86474835ca", "cves": [], "html": "修复并行清理工作进程中的内存泄漏（Baji Shaik）§
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", "text": "修复并行清理工作进程中的内存泄漏（Baji Shaik）§ 并行工作进程每次生成进度报告时都会泄漏约 1kB 内存，浪费的内存在该工作进程的整个生命周期内不断累积。", "title": "修复并行清理工作进程中的内存泄漏", "commits": ["8ad414831"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "d04e192c608871dfac9152f0aa7f703c04def273a778244db5d077ee622f830e", "section_path": ["变更"], "commit_groups": [["4154a1482", "8ad414831", "b20c952ce"]], "identity_text": "Fix memory leak in parallel vacuum worker processes (Baji Shaik) Progress reports from a parallel worker leaked about 1kB per report, with the waste accumulating for the life of the worker process.", "commit_aliases": ["4154a1482", "8ad414831", "b20c952ce"], "source_commits": ["8ad414831"], "source_entry_id": "17.11/changes/058", "db_id": "12d3079ba949a43359b006c455b1a4d0", "patch_ids": ["d49aabf7256557adc98b6cb3284f6aaa"], "statement_hash": "568c6bb4288fdf9897eb84891ce83a70e68203e76785f837606ed060e05d9705", "relations": [{"rule": 2, "type": "equivalent", "target": "7610626b7c4fe5c411f6eaf69975db96", "evidence": {"same_day": true, "patch_ids": ["d49aabf7256557adc98b6cb3284f6aaa"], "statement_hash": "568c6bb4288fdf9897eb84891ce83a70e68203e76785f837606ed060e05d9705"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "7610626b7c4fe5c411f6eaf69975db96", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复并行清理工作进程中的内存泄漏", "evidence": {"same_day": true, "patch_ids": ["d49aabf7256557adc98b6cb3284f6aaa"], "statement_hash": "568c6bb4288fdf9897eb84891ce83a70e68203e76785f837606ed060e05d9705"}, "url": "/docs/compare/?release=18.6#18.6-cf57ab07d77fbdf9", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-69bd1a00ee81086e", "cves": [], "html": "在清理 GIN 索引倒排树期间响应查询取消并遵守清理延迟（Paul Kim、Alexander Korotkov）§
\n常见值的倒排树可能很大，因此遗漏这项检查可能导致清理运行很长时间后才注意到中断。
", "text": "在清理 GIN 索引倒排树期间响应查询取消并遵守清理延迟（Paul Kim、Alexander Korotkov）§ 常见值的倒排树可能很大，因此遗漏这项检查可能导致清理运行很长时间后才注意到中断。", "title": "在清理 GIN 索引倒排树期间响应查询取消并遵守清理延迟", "commits": ["ba5e46329"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "3eea2875de6c4212c7db93785d9c5dcdfc66d7e323d58f953b2ba0bc704e7227", "section_path": ["变更"], "commit_groups": [["006ac761e", "15fd7a3e2", "70dad584e", "7123abab7", "7becb647d", "8a045f760", "ba5e46329"]], "identity_text": "Honor query cancel and vacuum delay during GIN index posting-tree cleanup (Paul Kim, Alexander Korotkov) The posting tree for a common value can be large, so that this missed check could allow vacuum to run for a long time before noticing an interrupt.", "commit_aliases": ["006ac761e", "15fd7a3e2", "70dad584e", "7123abab7", "7becb647d", "8a045f760", "ba5e46329"], "source_commits": ["ba5e46329"], "source_entry_id": "17.11/changes/059", "db_id": "95dd23cd66ca5f13741dbc751bd94f78", "patch_ids": ["5737ead0e5ff1d380903a73cc5289899"], "statement_hash": "dbe0ee194244f00d3dbdcf97c73698ed65ff34b62bead922d8670ce2d3ad820b", "relations": [{"rule": 2, "type": "equivalent", "target": "409fe91bb94144927c72c3c45b46a6de", "evidence": {"same_day": true, "patch_ids": ["5737ead0e5ff1d380903a73cc5289899"], "statement_hash": "dbe0ee194244f00d3dbdcf97c73698ed65ff34b62bead922d8670ce2d3ad820b"}}, {"rule": 2, "type": "equivalent", "target": "49ebdb578d55efc3f72704dda719fc23", "evidence": {"same_day": true, "patch_ids": ["5737ead0e5ff1d380903a73cc5289899"], "statement_hash": "dbe0ee194244f00d3dbdcf97c73698ed65ff34b62bead922d8670ce2d3ad820b"}}, {"rule": 2, "type": "equivalent", "target": "5ae3f0e86d0ce40099b20e708d75c4df", "evidence": {"same_day": true, "patch_ids": ["5737ead0e5ff1d380903a73cc5289899"], "statement_hash": "dbe0ee194244f00d3dbdcf97c73698ed65ff34b62bead922d8670ce2d3ad820b"}}, {"rule": 2, "type": "equivalent", "target": "814dbd746257f327d953bc1cef61300f", "evidence": {"same_day": true, "patch_ids": ["5737ead0e5ff1d380903a73cc5289899"], "statement_hash": "dbe0ee194244f00d3dbdcf97c73698ed65ff34b62bead922d8670ce2d3ad820b"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "5ae3f0e86d0ce40099b20e708d75c4df", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "在清理 GIN 索引倒排树期间响应查询取消并遵守清理延迟", "evidence": {"same_day": true, "patch_ids": ["5737ead0e5ff1d380903a73cc5289899"], "statement_hash": "dbe0ee194244f00d3dbdcf97c73698ed65ff34b62bead922d8670ce2d3ad820b"}, "url": "/docs/compare/?release=18.6#18.6-06642c9e897515be", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "409fe91bb94144927c72c3c45b46a6de", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "在清理 GIN 索引倒排树期间响应查询取消并遵守清理延迟", "evidence": {"same_day": true, "patch_ids": ["5737ead0e5ff1d380903a73cc5289899"], "statement_hash": "dbe0ee194244f00d3dbdcf97c73698ed65ff34b62bead922d8670ce2d3ad820b"}, "url": "/docs/compare/?release=16.15#16.15-554df1ef2961c27f", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "49ebdb578d55efc3f72704dda719fc23", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "在清理 GIN 索引倒排树期间响应查询取消并遵守清理延迟", "evidence": {"same_day": true, "patch_ids": ["5737ead0e5ff1d380903a73cc5289899"], "statement_hash": "dbe0ee194244f00d3dbdcf97c73698ed65ff34b62bead922d8670ce2d3ad820b"}, "url": "/docs/compare/?release=15.19#15.19-8a26ce7d87732222", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "814dbd746257f327d953bc1cef61300f", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "在清理 GIN 索引倒排树期间响应查询取消并遵守清理延迟", "evidence": {"same_day": true, "patch_ids": ["5737ead0e5ff1d380903a73cc5289899"], "statement_hash": "dbe0ee194244f00d3dbdcf97c73698ed65ff34b62bead922d8670ce2d3ad820b"}, "url": "/docs/compare/?release=14.24#14.24-25f9d07b0fe76365", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-7b0787620962198f", "cves": [], "html": "修复 GiST 和 SP-GiST 仅索引扫描期间可能错误解码索引元组的问题（Peter Geoghegan）§
\n此错误可能导致仅索引扫描计划输出损坏的数据。唯一受影响的核心操作符类是 GiST 的 range_ops，并且只有当范围列不是第一个索引列时才可能出错。
", "text": "修复 GiST 和 SP-GiST 仅索引扫描期间可能错误解码索引元组的问题（Peter Geoghegan）§ 此错误可能导致仅索引扫描计划输出损坏的数据。唯一受影响的核心操作符类是 GiST 的 range_ops，并且只有当范围列不是第一个索引列时才可能出错。", "title": "修复 GiST 和 SP-GiST 仅索引扫描期间可能错误解码索引元组的问题", "commits": ["355faed5a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "4afe662dba3747d0a927881acbc62385267bccaf68bb69e765dc4f3c5a2d2455", "section_path": ["变更"], "commit_groups": [["126141425", "1d4c81ad6", "355faed5a", "959b7fa2c", "c9ea37231", "e4ad22eb0", "e58192546"]], "identity_text": "Fix possible mis-decoding of index tuples during GiST and SP-GiST index-only scans (Peter Geoghegan) This error could lead to emitting corrupted data from an index-only scan plan. The only affected core opclass is GiST's range_ops, and it could only fail if the range column were not the first index column.", "commit_aliases": ["126141425", "1d4c81ad6", "355faed5a", "959b7fa2c", "c9ea37231", "e4ad22eb0", "e58192546"], "source_commits": ["355faed5a"], "source_entry_id": "17.11/changes/060", "db_id": "7639c43a8df152827beb0f3c4e7cfc7b", "patch_ids": ["7ca370d11dfae190ad9f8fa921a2ad3d"], "statement_hash": "9efc8088134be1c1e73efd8706fe30257c8c7003aa683976e4455f175426f7c5", "relations": [{"rule": 2, "type": "equivalent", "target": "14d92270ba44127134ec95d6dc3f7106", "evidence": {"same_day": true, "patch_ids": ["7ca370d11dfae190ad9f8fa921a2ad3d"], "statement_hash": "9efc8088134be1c1e73efd8706fe30257c8c7003aa683976e4455f175426f7c5"}}, {"rule": 2, "type": "equivalent", "target": "65fae97c05ec4b526543f385b077725a", "evidence": {"same_day": true, "patch_ids": ["7ca370d11dfae190ad9f8fa921a2ad3d"], "statement_hash": "9efc8088134be1c1e73efd8706fe30257c8c7003aa683976e4455f175426f7c5"}}, {"rule": 2, "type": "equivalent", "target": "ae38912b977aee6ba812c2a99322b4ad", "evidence": {"same_day": true, "patch_ids": ["7ca370d11dfae190ad9f8fa921a2ad3d"], "statement_hash": "9efc8088134be1c1e73efd8706fe30257c8c7003aa683976e4455f175426f7c5"}}, {"rule": 2, "type": "equivalent", "target": "fcb9ed65e8420a852359f3e3f6bd54b4", "evidence": {"same_day": true, "patch_ids": ["7ca370d11dfae190ad9f8fa921a2ad3d"], "statement_hash": "9efc8088134be1c1e73efd8706fe30257c8c7003aa683976e4455f175426f7c5"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "ae38912b977aee6ba812c2a99322b4ad", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 GiST 和 SP-GiST 仅索引扫描期间可能错误解码索引元组的问题", "evidence": {"same_day": true, "patch_ids": ["7ca370d11dfae190ad9f8fa921a2ad3d"], "statement_hash": "9efc8088134be1c1e73efd8706fe30257c8c7003aa683976e4455f175426f7c5"}, "url": "/docs/compare/?release=18.6#18.6-5a9e09abedfed179", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "fcb9ed65e8420a852359f3e3f6bd54b4", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 GiST 和 SP-GiST 仅索引扫描期间可能错误解码索引元组的问题", "evidence": {"same_day": true, "patch_ids": ["7ca370d11dfae190ad9f8fa921a2ad3d"], "statement_hash": "9efc8088134be1c1e73efd8706fe30257c8c7003aa683976e4455f175426f7c5"}, "url": "/docs/compare/?release=16.15#16.15-54c08a28fecc0079", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "65fae97c05ec4b526543f385b077725a", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 GiST 和 SP-GiST 仅索引扫描期间可能错误解码索引元组的问题", "evidence": {"same_day": true, "patch_ids": ["7ca370d11dfae190ad9f8fa921a2ad3d"], "statement_hash": "9efc8088134be1c1e73efd8706fe30257c8c7003aa683976e4455f175426f7c5"}, "url": "/docs/compare/?release=15.19#15.19-05c8adba23ea9473", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "14d92270ba44127134ec95d6dc3f7106", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 GiST 和 SP-GiST 仅索引扫描期间可能错误解码索引元组的问题", "evidence": {"same_day": true, "patch_ids": ["7ca370d11dfae190ad9f8fa921a2ad3d"], "statement_hash": "9efc8088134be1c1e73efd8706fe30257c8c7003aa683976e4455f175426f7c5"}, "url": "/docs/compare/?release=14.24#14.24-1210849badf0243c", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-3992304d0ec9fe22", "cves": [], "html": "确保批量扩展的表中新出现的最后一个块被及时加入其空闲空间映射（Jingtang Zhang）§
\n一个差一错误导致多块表扩展的最后一个块未在映射中标记为空闲。清理最终会纠正此问题，但在此之前这部分空间无法使用。
", "text": "确保批量扩展的表中新出现的最后一个块被及时加入其空闲空间映射（Jingtang Zhang）§ 一个差一错误导致多块表扩展的最后一个块未在映射中标记为空闲。清理最终会纠正此问题，但在此之前这部分空间无法使用。", "title": "确保批量扩展的表中新出现的最后一个块被及时加入其空闲空间映射", "commits": ["768ae083e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "2de218225a99892d804a478d9e0685586a9605372f1e0b2e1abf7ba7f95506a4", "section_path": ["变更"], "commit_groups": [["0fd5595aa", "768ae083e", "7a103928a", "a2fd8d65a", "eabc9a9dd"]], "identity_text": "Ensure that the new last block of a bulk-extended table is added to its free space map promptly (Jingtang Zhang) An off-by-one error caused the last block of a multi-block table extension to not be marked as free in the map. This would eventually get corrected by vacuum, but meanwhile the space wouldn't be used.", "commit_aliases": ["0fd5595aa", "768ae083e", "7a103928a", "a2fd8d65a", "eabc9a9dd"], "source_commits": ["768ae083e"], "source_entry_id": "17.11/changes/061", "db_id": "5a75bdb8448ae2da9b4ee0c1b6cfc0ec", "patch_ids": ["a01b2fa451eb1e57f308131966fdbfa3"], "statement_hash": "86a67f4007c63f314fcd3fa59706655774d99e6653a04f11b106c0666d4ea725", "relations": [{"rule": 2, "type": "equivalent", "target": "21d26afc1e7bfcc375bff059f0b216d1", "evidence": {"same_day": true, "patch_ids": ["a01b2fa451eb1e57f308131966fdbfa3"], "statement_hash": "86a67f4007c63f314fcd3fa59706655774d99e6653a04f11b106c0666d4ea725"}}, {"rule": 2, "type": "equivalent", "target": "edf9c4cb86d4f9c68eb8b2fe8ad0b5d1", "evidence": {"same_day": true, "patch_ids": ["a01b2fa451eb1e57f308131966fdbfa3"], "statement_hash": "86a67f4007c63f314fcd3fa59706655774d99e6653a04f11b106c0666d4ea725"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "edf9c4cb86d4f9c68eb8b2fe8ad0b5d1", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "确保批量扩展的表中新出现的最后一个块被及时加入其空闲空间映射", "evidence": {"same_day": true, "patch_ids": ["a01b2fa451eb1e57f308131966fdbfa3"], "statement_hash": "86a67f4007c63f314fcd3fa59706655774d99e6653a04f11b106c0666d4ea725"}, "url": "/docs/compare/?release=18.6#18.6-27ff2778a5384e11", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "21d26afc1e7bfcc375bff059f0b216d1", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "确保批量扩展的表中新出现的最后一个块被及时加入其空闲空间映射", "evidence": {"same_day": true, "patch_ids": ["a01b2fa451eb1e57f308131966fdbfa3"], "statement_hash": "86a67f4007c63f314fcd3fa59706655774d99e6653a04f11b106c0666d4ea725"}, "url": "/docs/compare/?release=16.15#16.15-5b769a1a41d683e2", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}]}, {"id": "17.11-bc733642b8318e02", "cves": [], "html": "避免事务中止期间资源清理中可能发生的双重释放或无限错误恢复循环（Tom Lane）§
", "text": "避免事务中止期间资源清理中可能发生的双重释放或无限错误恢复循环（Tom Lane）§", "title": "避免事务中止期间资源清理中可能发生的双重释放或无限错误恢复循环", "commits": ["011eedcdc"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "a62c95dfc76285a1472a5200e7c2ce837b6b91150ccf73dc23fb8926d14cd9cf", "section_path": ["变更"], "commit_groups": [["011eedcdc", "ac6a58a70", "ef01ca6db"]], "identity_text": "Avoid possible double-free or infinite error recovery loop in resource cleanup during transaction abort (Tom Lane)", "commit_aliases": ["011eedcdc", "ac6a58a70", "ef01ca6db"], "source_commits": ["011eedcdc"], "source_entry_id": "17.11/changes/062", "db_id": "c57cf207c2d63b373be8c9b4e51bf8b0", "patch_ids": ["952c61c83d0d5caa000ecdb0d8cb575f"], "statement_hash": "0a5717b9df09bcb1cf776219cba662308d08a453587910b5eb52fcd98913cda4", "relations": [{"rule": 2, "type": "equivalent", "target": "1c2d5d9905bd8e6369c82b7ef237290e", "evidence": {"same_day": true, "patch_ids": ["952c61c83d0d5caa000ecdb0d8cb575f"], "statement_hash": "0a5717b9df09bcb1cf776219cba662308d08a453587910b5eb52fcd98913cda4"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "1c2d5d9905bd8e6369c82b7ef237290e", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "避免事务中止期间资源清理中可能发生的双重释放或无限错误恢复循环", "evidence": {"same_day": true, "patch_ids": ["952c61c83d0d5caa000ecdb0d8cb575f"], "statement_hash": "0a5717b9df09bcb1cf776219cba662308d08a453587910b5eb52fcd98913cda4"}, "url": "/docs/compare/?release=18.6#18.6-0c1c452c86d77ab6", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-13269e0439b17ec9", "cves": [], "html": "创建目录时，容忍同一目录被并发创建（Andrew Dunstan、Tom Lane）§
", "text": "创建目录时，容忍同一目录被并发创建（Andrew Dunstan、Tom Lane）§", "title": "创建目录时，容忍同一目录被并发创建", "commits": ["f0a831ef3"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "6894d6605ac0e89a218e2358f689ba8f5f20534ff06369a61a4df288b32f629c", "section_path": ["变更"], "commit_groups": [["4647ac142", "4b3bc6b71", "9951e3d38", "aa80c34c8", "f0a831ef3", "f25a07b2d"]], "identity_text": "When creating directories, tolerate concurrent creation of the same directory (Andrew Dunstan, Tom Lane)", "commit_aliases": ["4647ac142", "4b3bc6b71", "9951e3d38", "aa80c34c8", "f0a831ef3", "f25a07b2d"], "source_commits": ["f0a831ef3"], "source_entry_id": "17.11/changes/063", "db_id": "0c17e02f698dc60a4c3ff762796f0a7f", "patch_ids": ["be8272a81c28ebdf12c66d1c6ab05685"], "statement_hash": "abc7e610f491a4ce631c4e62316b1f9bd718c7e9e581a2f07ba12774f5db10eb", "relations": [{"rule": 2, "type": "equivalent", "target": "268b9e4fbdc7682f30cd928e974932c2", "evidence": {"same_day": true, "patch_ids": ["be8272a81c28ebdf12c66d1c6ab05685"], "statement_hash": "abc7e610f491a4ce631c4e62316b1f9bd718c7e9e581a2f07ba12774f5db10eb"}}, {"rule": 2, "type": "equivalent", "target": "467be2f83ba0b7e841b7fca2b8c0a0af", "evidence": {"same_day": true, "patch_ids": ["be8272a81c28ebdf12c66d1c6ab05685"], "statement_hash": "abc7e610f491a4ce631c4e62316b1f9bd718c7e9e581a2f07ba12774f5db10eb"}}, {"rule": 2, "type": "equivalent", "target": "7b3923b1add1cfb8cc243430e7e7769f", "evidence": {"same_day": true, "patch_ids": ["be8272a81c28ebdf12c66d1c6ab05685"], "statement_hash": "abc7e610f491a4ce631c4e62316b1f9bd718c7e9e581a2f07ba12774f5db10eb"}}, {"rule": 2, "type": "equivalent", "target": "b3f796774144a4fd6c7ec84d799fce9c", "evidence": {"same_day": true, "patch_ids": ["be8272a81c28ebdf12c66d1c6ab05685"], "statement_hash": "abc7e610f491a4ce631c4e62316b1f9bd718c7e9e581a2f07ba12774f5db10eb"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "7b3923b1add1cfb8cc243430e7e7769f", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "创建目录时，容忍同一目录被并发创建", "evidence": {"same_day": true, "patch_ids": ["be8272a81c28ebdf12c66d1c6ab05685"], "statement_hash": "abc7e610f491a4ce631c4e62316b1f9bd718c7e9e581a2f07ba12774f5db10eb"}, "url": "/docs/compare/?release=18.6#18.6-67b85199c3f22fc0", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "467be2f83ba0b7e841b7fca2b8c0a0af", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "创建目录时，容忍同一目录被并发创建", "evidence": {"same_day": true, "patch_ids": ["be8272a81c28ebdf12c66d1c6ab05685"], "statement_hash": "abc7e610f491a4ce631c4e62316b1f9bd718c7e9e581a2f07ba12774f5db10eb"}, "url": "/docs/compare/?release=16.15#16.15-560dbc4a06a156a7", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "268b9e4fbdc7682f30cd928e974932c2", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "创建目录时，容忍同一目录被并发创建", "evidence": {"same_day": true, "patch_ids": ["be8272a81c28ebdf12c66d1c6ab05685"], "statement_hash": "abc7e610f491a4ce631c4e62316b1f9bd718c7e9e581a2f07ba12774f5db10eb"}, "url": "/docs/compare/?release=15.19#15.19-a8d34c2e8685a39c", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "b3f796774144a4fd6c7ec84d799fce9c", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "创建目录时，容忍同一目录被并发创建", "evidence": {"same_day": true, "patch_ids": ["be8272a81c28ebdf12c66d1c6ab05685"], "statement_hash": "abc7e610f491a4ce631c4e62316b1f9bd718c7e9e581a2f07ba12774f5db10eb"}, "url": "/docs/compare/?release=14.24#14.24-2c65a57d05310508", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-3ecac11b2752e81b", "cves": [], "html": "通过在任何被依赖对象上取得共享锁，防止创建悬空的对象依赖关系（Bertrand Drouvot）§ §
\n该共享锁会与任何删除被依赖对象的尝试冲突，从而消除之前存在的竞态条件。例如，如果一个会话删除一个在其看来为空的模式，同时另一个会话在该模式中创建函数，此前两个事务都可能提交，并留下无效的函数定义。现在，其中一个事务会失败。
", "text": "通过在任何被依赖对象上取得共享锁，防止创建悬空的对象依赖关系（Bertrand Drouvot）§ § 该共享锁会与任何删除被依赖对象的尝试冲突，从而消除之前存在的竞态条件。例如，如果一个会话删除一个在其看来为空的模式，同时另一个会话在该模式中创建函数，此前两个事务都可能提交，并留下无效的函数定义。现在，其中一个事务会失败。", "title": "通过在任何被依赖对象上取得共享锁，防止创建悬空的对象依赖关系", "commits": ["3a9909eda", "c1588f92a"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "93f88d140043234718983a18466fde4c46d2c31f3617639bd44d955813c3f8e9", "section_path": ["变更"], "commit_groups": [["2fbb21170", "3a9909eda", "5100bdbd3", "5fa137727", "c8cd3d697", "d9bc0d96c"], ["36b6ed260", "c1588f92a", "d44cd4674", "ef3d7b15e", "f9d5a52da", "fd93ee100"]], "identity_text": "Prevent creation of dangling object dependencies by acquiring a shared lock on any object being depended on (Bertrand Drouvot) The shared lock will conflict with any attempt to drop the depended-on object, eliminating the race condition that formerly existed. For example, if one session drops a schema (that appears empty to it) concurrently with some other session creating a function in that schema, previously both transactions could commit, leaving an invalid function definition behind. Now, one transaction or the other will fail.", "commit_aliases": ["2fbb21170", "36b6ed260", "3a9909eda", "5100bdbd3", "5fa137727", "c1588f92a", "c8cd3d697", "d44cd4674", "d9bc0d96c", "ef3d7b15e", "f9d5a52da", "fd93ee100"], "source_commits": ["3a9909eda", "c1588f92a"], "source_entry_id": "17.11/changes/064", "db_id": "e1119f78a9d166b823f798e0194d35f4", "patch_ids": ["6536cf91f14cf539ab4bd08602032b89", "aca7f5e76462423a64bce89519f8b4ca"], "statement_hash": "aabd3d9b6b1a0460624c086ca1a5f2223aec25bb342c2883b18a435de52ba98c", "relations": [{"rule": 2, "type": "equivalent", "target": "744925e5c1491a9c1e34c5d45e2c5ffd", "evidence": {"same_day": true, "patch_ids": ["6536cf91f14cf539ab4bd08602032b89", "aca7f5e76462423a64bce89519f8b4ca"], "statement_hash": "aabd3d9b6b1a0460624c086ca1a5f2223aec25bb342c2883b18a435de52ba98c"}}, {"rule": 2, "type": "equivalent", "target": "a34abdf13c3a75b01325176fd494ce54", "evidence": {"same_day": true, "patch_ids": ["6536cf91f14cf539ab4bd08602032b89", "aca7f5e76462423a64bce89519f8b4ca"], "statement_hash": "aabd3d9b6b1a0460624c086ca1a5f2223aec25bb342c2883b18a435de52ba98c"}}, {"rule": 2, "type": "equivalent", "target": "a9f65b357e29d3c7c477cf734deef532", "evidence": {"same_day": true, "patch_ids": ["6536cf91f14cf539ab4bd08602032b89", "aca7f5e76462423a64bce89519f8b4ca"], "statement_hash": "aabd3d9b6b1a0460624c086ca1a5f2223aec25bb342c2883b18a435de52ba98c"}}, {"rule": 2, "type": "equivalent", "target": "e811cff0335c3ca435753578de40cbd3", "evidence": {"same_day": true, "patch_ids": ["6536cf91f14cf539ab4bd08602032b89", "aca7f5e76462423a64bce89519f8b4ca"], "statement_hash": "aabd3d9b6b1a0460624c086ca1a5f2223aec25bb342c2883b18a435de52ba98c"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "a34abdf13c3a75b01325176fd494ce54", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "通过在任何被依赖对象上取得共享锁，防止创建悬空的对象依赖关系", "evidence": {"same_day": true, "patch_ids": ["6536cf91f14cf539ab4bd08602032b89", "aca7f5e76462423a64bce89519f8b4ca"], "statement_hash": "aabd3d9b6b1a0460624c086ca1a5f2223aec25bb342c2883b18a435de52ba98c"}, "url": "/docs/compare/?release=18.6#18.6-04ef095d0d14ee39", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "e811cff0335c3ca435753578de40cbd3", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "通过在任何被依赖对象上取得共享锁，防止创建悬空的对象依赖关系", "evidence": {"same_day": true, "patch_ids": ["6536cf91f14cf539ab4bd08602032b89", "aca7f5e76462423a64bce89519f8b4ca"], "statement_hash": "aabd3d9b6b1a0460624c086ca1a5f2223aec25bb342c2883b18a435de52ba98c"}, "url": "/docs/compare/?release=16.15#16.15-c1d18953b262f630", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "744925e5c1491a9c1e34c5d45e2c5ffd", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "通过在任何被依赖对象上取得共享锁，防止创建悬空的对象依赖关系", "evidence": {"same_day": true, "patch_ids": ["6536cf91f14cf539ab4bd08602032b89", "aca7f5e76462423a64bce89519f8b4ca"], "statement_hash": "aabd3d9b6b1a0460624c086ca1a5f2223aec25bb342c2883b18a435de52ba98c"}, "url": "/docs/compare/?release=15.19#15.19-f3cfe840091a64df", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "a9f65b357e29d3c7c477cf734deef532", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "通过在任何被依赖对象上取得共享锁，防止创建悬空的对象依赖关系", "evidence": {"same_day": true, "patch_ids": ["6536cf91f14cf539ab4bd08602032b89", "aca7f5e76462423a64bce89519f8b4ca"], "statement_hash": "aabd3d9b6b1a0460624c086ca1a5f2223aec25bb342c2883b18a435de52ba98c"}, "url": "/docs/compare/?release=14.24#14.24-9b47dd97523d83ec", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-869506b0934d2991", "cves": [], "html": "修复 SERIALIZABLE 隔离模式中冲突检测的竞态条件（Peter Geoghegan）§
检查最初为空的 B-树索引时可能漏掉冲突，因错误地允许冲突事务提交而破坏可串行性。
", "text": "修复 SERIALIZABLE 隔离模式中冲突检测的竞态条件（Peter Geoghegan）§ 检查最初为空的 B-树索引时可能漏掉冲突，因错误地允许冲突事务提交而破坏可串行性。", "title": "修复 SERIALIZABLE 隔离模式中冲突检测的竞态条件", "commits": ["8434c9385"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "9c6559cb916c9f1a8ddf0bc74a8d10fa6ce6756752ba65dc0b208f71d091442d", "section_path": ["变更"], "commit_groups": [["2aa3c6d1f", "2fc3e1b44", "5d18105ca", "8434c9385", "ce3f19e26", "d560e730e", "e321faaae"]], "identity_text": "Fix race condition in conflict detection for SERIALIZABLE isolation mode (Peter Geoghegan) A conflict could be missed when examining an initially-empty btree index, allowing failure of serializability due to improperly allowing conflicting transactions to commit.", "commit_aliases": ["2aa3c6d1f", "2fc3e1b44", "5d18105ca", "8434c9385", "ce3f19e26", "d560e730e", "e321faaae"], "source_commits": ["8434c9385"], "source_entry_id": "17.11/changes/065", "db_id": "06c841c7e97c29498c3c18507b648e43", "patch_ids": ["76d6d81d4ce8e28654632817bbc18838"], "statement_hash": "08b20f0b0cc877fd90cf1664195b8bfe906cd38aa76d41fb6a77cbb2ead17297", "relations": [{"rule": 2, "type": "equivalent", "target": "03ed91689e7472f3e2b40c0668a9efe6", "evidence": {"same_day": true, "patch_ids": ["76d6d81d4ce8e28654632817bbc18838"], "statement_hash": "08b20f0b0cc877fd90cf1664195b8bfe906cd38aa76d41fb6a77cbb2ead17297"}}, {"rule": 2, "type": "equivalent", "target": "37ab9407c7a4720c042c3c30e616b840", "evidence": {"same_day": true, "patch_ids": ["76d6d81d4ce8e28654632817bbc18838"], "statement_hash": "08b20f0b0cc877fd90cf1664195b8bfe906cd38aa76d41fb6a77cbb2ead17297"}}, {"rule": 2, "type": "equivalent", "target": "8911cf537e3c81e99f223106f705f385", "evidence": {"same_day": true, "patch_ids": ["76d6d81d4ce8e28654632817bbc18838"], "statement_hash": "08b20f0b0cc877fd90cf1664195b8bfe906cd38aa76d41fb6a77cbb2ead17297"}}, {"rule": 2, "type": "equivalent", "target": "a69025df57e9873eeee634c6a24b5f52", "evidence": {"same_day": true, "patch_ids": ["76d6d81d4ce8e28654632817bbc18838"], "statement_hash": "08b20f0b0cc877fd90cf1664195b8bfe906cd38aa76d41fb6a77cbb2ead17297"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "37ab9407c7a4720c042c3c30e616b840", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 SERIALIZABLE 隔离模式中冲突检测的竞态条件", "evidence": {"same_day": true, "patch_ids": ["76d6d81d4ce8e28654632817bbc18838"], "statement_hash": "08b20f0b0cc877fd90cf1664195b8bfe906cd38aa76d41fb6a77cbb2ead17297"}, "url": "/docs/compare/?release=18.6#18.6-020cfc417a109d87", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "a69025df57e9873eeee634c6a24b5f52", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 SERIALIZABLE 隔离模式中冲突检测的竞态条件", "evidence": {"same_day": true, "patch_ids": ["76d6d81d4ce8e28654632817bbc18838"], "statement_hash": "08b20f0b0cc877fd90cf1664195b8bfe906cd38aa76d41fb6a77cbb2ead17297"}, "url": "/docs/compare/?release=16.15#16.15-1a9b527727b160db", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "8911cf537e3c81e99f223106f705f385", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 SERIALIZABLE 隔离模式中冲突检测的竞态条件", "evidence": {"same_day": true, "patch_ids": ["76d6d81d4ce8e28654632817bbc18838"], "statement_hash": "08b20f0b0cc877fd90cf1664195b8bfe906cd38aa76d41fb6a77cbb2ead17297"}, "url": "/docs/compare/?release=15.19#15.19-7ed1bdbb167b6fe1", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "03ed91689e7472f3e2b40c0668a9efe6", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 SERIALIZABLE 隔离模式中冲突检测的竞态条件", "evidence": {"same_day": true, "patch_ids": ["76d6d81d4ce8e28654632817bbc18838"], "statement_hash": "08b20f0b0cc877fd90cf1664195b8bfe906cd38aa76d41fb6a77cbb2ead17297"}, "url": "/docs/compare/?release=14.24#14.24-62f053723972383a", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-0e94152c02ef540a", "cves": [], "html": "修复 ProcSignalBarrier 代码中的竞态条件（Masahiko Sawada）§
\n此错误可能导致进程卡住，通常发生在报告 “still waiting for backend with PID nnnn to accept ProcSignalBarrier” 之后。
修复属于同一锁组的一组进程同时退出时的竞态条件（Vlad Lesin）§ §
\n这些错误可能导致 PANIC 中止，并出现 “latch already owned” 等消息。普通并行查询通常不会出现此问题，因为领导者在看到其工作进程结束之前不会退出；但某些扩展会触发此问题。
", "text": "修复属于同一锁组的一组进程同时退出时的竞态条件（Vlad Lesin）§ § 这些错误可能导致 PANIC 中止，并出现 “latch already owned” 等消息。普通并行查询通常不会出现此问题，因为领导者在看到其工作进程结束之前不会退出；但某些扩展会触发此问题。", "title": "修复属于同一锁组的一组进程同时退出时的竞态条件", "commits": ["d489c4439", "e14b4ea4a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "1b8d14e0094b12a5b68a920ce6d25b422beb7f4dd657708ccfcc710756c6404f", "section_path": ["变更"], "commit_groups": [["12c9b8b42", "4e8edf53f", "84b9d6bce", "db4d12fc9", "e14b4ea4a", "e786fb5aa"], ["563104523", "65d04df60", "8007d1185", "ae08eb168", "d489c4439", "d5cc6df60"]], "identity_text": "Fix race conditions when a set of processes that belong to the same lock group exit at the same time (Vlad Lesin) These errors could lead to PANIC aborts, with messages such as latch already owned. The issue does not normally arise in regular parallel query, since the leader won't exit before seeing its workers finish; but some extensions reach the problem.", "commit_aliases": ["12c9b8b42", "4e8edf53f", "563104523", "65d04df60", "8007d1185", "84b9d6bce", "ae08eb168", "d489c4439", "d5cc6df60", "db4d12fc9", "e14b4ea4a", "e786fb5aa"], "source_commits": ["d489c4439", "e14b4ea4a"], "source_entry_id": "17.11/changes/067", "db_id": "62cbccb23171427808fec1301b0ac804", "patch_ids": ["879e5bd994847bca2264dea6ae8e7636", "deebb0acfe2f0b111568661ecf5bdaeb"], "statement_hash": "8d70122ebcc8b017ec76eed632b4e53a2f4e86497efb77268f99f3855284c592", "relations": [{"rule": 2, "type": "equivalent", "target": "2c46dad30462775a825ad96cfb3ffbdf", "evidence": {"same_day": true, "patch_ids": ["879e5bd994847bca2264dea6ae8e7636", "deebb0acfe2f0b111568661ecf5bdaeb"], "statement_hash": "8d70122ebcc8b017ec76eed632b4e53a2f4e86497efb77268f99f3855284c592"}}, {"rule": 2, "type": "equivalent", "target": "5b2fc7485dc383d08b3d68f5272b2a11", "evidence": {"same_day": true, "patch_ids": ["879e5bd994847bca2264dea6ae8e7636", "deebb0acfe2f0b111568661ecf5bdaeb"], "statement_hash": "8d70122ebcc8b017ec76eed632b4e53a2f4e86497efb77268f99f3855284c592"}}, {"rule": 2, "type": "equivalent", "target": "edd683109ce0095065cd3a04ab6b5136", "evidence": {"same_day": true, "patch_ids": ["879e5bd994847bca2264dea6ae8e7636", "deebb0acfe2f0b111568661ecf5bdaeb"], "statement_hash": "8d70122ebcc8b017ec76eed632b4e53a2f4e86497efb77268f99f3855284c592"}}, {"rule": 2, "type": "equivalent", "target": "f2fcbfdff352b775c9b16fc62d0649b5", "evidence": {"same_day": true, "patch_ids": ["879e5bd994847bca2264dea6ae8e7636", "deebb0acfe2f0b111568661ecf5bdaeb"], "statement_hash": "8d70122ebcc8b017ec76eed632b4e53a2f4e86497efb77268f99f3855284c592"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "5b2fc7485dc383d08b3d68f5272b2a11", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复属于同一锁组的一组进程同时退出时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["879e5bd994847bca2264dea6ae8e7636", "deebb0acfe2f0b111568661ecf5bdaeb"], "statement_hash": "8d70122ebcc8b017ec76eed632b4e53a2f4e86497efb77268f99f3855284c592"}, "url": "/docs/compare/?release=18.6#18.6-25e5a2422482dd1c", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "2c46dad30462775a825ad96cfb3ffbdf", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复属于同一锁组的一组进程同时退出时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["879e5bd994847bca2264dea6ae8e7636", "deebb0acfe2f0b111568661ecf5bdaeb"], "statement_hash": "8d70122ebcc8b017ec76eed632b4e53a2f4e86497efb77268f99f3855284c592"}, "url": "/docs/compare/?release=16.15#16.15-90b68cb35e0fad17", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "edd683109ce0095065cd3a04ab6b5136", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复属于同一锁组的一组进程同时退出时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["879e5bd994847bca2264dea6ae8e7636", "deebb0acfe2f0b111568661ecf5bdaeb"], "statement_hash": "8d70122ebcc8b017ec76eed632b4e53a2f4e86497efb77268f99f3855284c592"}, "url": "/docs/compare/?release=15.19#15.19-786c47066d87de68", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "f2fcbfdff352b775c9b16fc62d0649b5", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复属于同一锁组的一组进程同时退出时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["879e5bd994847bca2264dea6ae8e7636", "deebb0acfe2f0b111568661ecf5bdaeb"], "statement_hash": "8d70122ebcc8b017ec76eed632b4e53a2f4e86497efb77268f99f3855284c592"}, "url": "/docs/compare/?release=14.24#14.24-fc8ff9cc62311a3d", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-3f8c2715fb02eef2", "cves": [], "html": "修复表可见性映射清位操作的 WAL 日志记录（Melanie Plageman、Andres Freund）§ § §
\nWAL 汇总器漏掉了这类可见性映射变更，可能导致错误的增量备份。我们也没有在需要时记录这类可见性映射页的整页镜像，因而可能无法纠正撕裂页写入。这可能造成后续行为异常，例如仅索引扫描返回错误结果。
", "text": "修复表可见性映射清位操作的 WAL 日志记录（Melanie Plageman、Andres Freund）§ § § WAL 汇总器漏掉了这类可见性映射变更，可能导致错误的增量备份。我们也没有在需要时记录这类可见性映射页的整页镜像，因而可能无法纠正撕裂页写入。这可能造成后续行为异常，例如仅索引扫描返回错误结果。", "title": "修复表可见性映射清位操作的 WAL 日志记录", "commits": ["067213430", "7edec8b57", "c0d9864f5"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "845e5e3ac1a228c732bd68692277c3a679de0f24a3c7ba70ae07ad6318617a7b", "section_path": ["变更"], "commit_groups": [["067213430", "4d7feebfb", "5174d157a", "9171f77db"], ["10911fde0", "56bf5fa5d", "7edec8b57", "d0fb1da21"], ["b01c31eef", "c0d9864f5", "ed62d26ca", "f581fa729"]], "identity_text": "Fix WAL logging of operations that clear bits in tables' visibility maps (Melanie Plageman, Andres Freund) Such VM changes were missed by the WAL summarizer, potentially leading to incorrect incremental backups. We also failed to log full-page images of such VM pages when needed, potentially allowing torn page writes to go uncorrected. This could lead to misbehavior later, such as wrong results from index-only scans.", "commit_aliases": ["067213430", "10911fde0", "4d7feebfb", "5174d157a", "56bf5fa5d", "7edec8b57", "9171f77db", "b01c31eef", "c0d9864f5", "d0fb1da21", "ed62d26ca", "f581fa729"], "source_commits": ["067213430", "7edec8b57", "c0d9864f5"], "source_entry_id": "17.11/changes/068", "db_id": "4def260cbd8a4182ec017b70a81b56f5", "patch_ids": ["34adf46d69ca32061b06da3d079a7069", "41df06de615aa532015928409cff3d95", "892803f446e66b4cc097d23f3797a918"], "statement_hash": "06aadf1e9f9cee9405150393ea42bc91f00a02570025c6028daa277cee57c7f3", "relations": [{"rule": 2, "type": "equivalent", "target": "9fb751cb38bcd179121b328ba031747e", "evidence": {"same_day": true, "patch_ids": ["34adf46d69ca32061b06da3d079a7069", "41df06de615aa532015928409cff3d95", "892803f446e66b4cc097d23f3797a918"], "statement_hash": "06aadf1e9f9cee9405150393ea42bc91f00a02570025c6028daa277cee57c7f3"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "9fb751cb38bcd179121b328ba031747e", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复表可见性映射清位操作的 WAL 日志记录", "evidence": {"same_day": true, "patch_ids": ["34adf46d69ca32061b06da3d079a7069", "41df06de615aa532015928409cff3d95", "892803f446e66b4cc097d23f3797a918"], "statement_hash": "06aadf1e9f9cee9405150393ea42bc91f00a02570025c6028daa277cee57c7f3"}, "url": "/docs/compare/?release=18.6#18.6-591cce0db8214715", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-aa32892bb54c9a4c", "cves": [], "html": "防止 WAL 汇总进程在时间线切换时卡住（Robert Haas）§ §
", "text": "防止 WAL 汇总进程在时间线切换时卡住（Robert Haas）§ §", "title": "防止 WAL 汇总进程在时间线切换时卡住", "commits": ["499d9eabb", "d28cdf46e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "7fa465b27ef0d5c770984937315a722c131767ff6b02e3f6a1a7e2a419d0fcce", "section_path": ["变更"], "commit_groups": [["18f0de6b8", "3e8a0c1b0", "499d9eabb", "dfb96277d"], ["1d299d6ab", "8767a10cb", "bdcea66f0", "d28cdf46e"]], "identity_text": "Prevent WAL summarizer process from getting stuck at a timeline switch (Robert Haas)", "commit_aliases": ["18f0de6b8", "1d299d6ab", "3e8a0c1b0", "499d9eabb", "8767a10cb", "bdcea66f0", "d28cdf46e", "dfb96277d"], "source_commits": ["499d9eabb", "d28cdf46e"], "source_entry_id": "17.11/changes/069", "db_id": "6c5349d1b6e45948404ea7876a48dcf9", "patch_ids": ["508495a1aeae90a13092582478007f0c", "99c5fedfb753eda3ff5558c646f420a7"], "statement_hash": "693f186e16744df775e9c612662444e181a78d71562335513f419c84cb3c35b9", "relations": [{"rule": 2, "type": "equivalent", "target": "3173f4833a6a0aae8a455f45a5a4568e", "evidence": {"same_day": true, "patch_ids": ["508495a1aeae90a13092582478007f0c", "99c5fedfb753eda3ff5558c646f420a7"], "statement_hash": "693f186e16744df775e9c612662444e181a78d71562335513f419c84cb3c35b9"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "3173f4833a6a0aae8a455f45a5a4568e", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "防止 WAL 汇总进程在时间线切换时卡住", "evidence": {"same_day": true, "patch_ids": ["508495a1aeae90a13092582478007f0c", "99c5fedfb753eda3ff5558c646f420a7"], "statement_hash": "693f186e16744df775e9c612662444e181a78d71562335513f419c84cb3c35b9"}, "url": "/docs/compare/?release=18.6#18.6-2ef24f05b5bd445d", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-563becf7bc3e6dcf", "cves": [], "html": "修复备库提升期间逻辑解码选择时间线时的竞态条件（Bertrand Drouvot）§ §
\n在备库上执行的逻辑解码可能会失败，并出现 “requested WAL segment has already been removed” 错误。重试即可成功，因此没有永久性问题，但存在可用性隐患。
", "text": "修复备库提升期间逻辑解码选择时间线时的竞态条件（Bertrand Drouvot）§ § 在备库上执行的逻辑解码可能会失败，并出现 “requested WAL segment has already been removed” 错误。重试即可成功，因此没有永久性问题，但存在可用性隐患。", "title": "修复备库提升期间逻辑解码选择时间线时的竞态条件", "commits": ["16b89ff04", "ab5334d8b"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "719875361b89ef78cebe25542fa6a933e5a27380d737eda91cdb6f9d9e352b13", "section_path": ["变更"], "commit_groups": [["16b89ff04", "8cd687c44", "b4bd13850", "eb4e7224a"], ["2a04624da", "4bff3aa51", "a8ee70bd5", "ab5334d8b"], ["d9b49e5b4"]], "identity_text": "Fix race with timeline selection in logical decoding during standby promotion (Bertrand Drouvot) Logical decoding being performed on the standby could fail with a requested WAL segment has already been removed error. A repeat attempt would succeed, so there was no permanent problem but there was an availability hazard.", "commit_aliases": ["16b89ff04", "2a04624da", "4bff3aa51", "8cd687c44", "a8ee70bd5", "ab5334d8b", "b4bd13850", "d9b49e5b4", "eb4e7224a"], "source_commits": ["16b89ff04", "ab5334d8b", "d9b49e5b4"], "source_entry_id": "17.11/changes/070", "db_id": "d6f8670170e47d169eec30b65187d2c4", "patch_ids": ["0baec0cbb6545813886061f478d7fe09", "1bbd3b28c72161d54ff8850fb5990a90", "afe572d50b5aa93a1a43ac975df96fa6"], "statement_hash": "b5c88f0e08517e3cf00dd9b3461ec817031530e9f8f05c2cde86c91f4ec8fc51", "relations": [{"rule": 2, "type": "equivalent", "target": "7c127c9b86c4ff620059a798b7b8dda9", "evidence": {"same_day": true, "patch_ids": ["0baec0cbb6545813886061f478d7fe09", "1bbd3b28c72161d54ff8850fb5990a90", "afe572d50b5aa93a1a43ac975df96fa6"], "statement_hash": "b5c88f0e08517e3cf00dd9b3461ec817031530e9f8f05c2cde86c91f4ec8fc51"}}, {"rule": 2, "type": "equivalent", "target": "cfd9fb4fa936abb9c7ef216b4854fb3c", "evidence": {"same_day": true, "patch_ids": ["0baec0cbb6545813886061f478d7fe09", "1bbd3b28c72161d54ff8850fb5990a90", "afe572d50b5aa93a1a43ac975df96fa6"], "statement_hash": "b5c88f0e08517e3cf00dd9b3461ec817031530e9f8f05c2cde86c91f4ec8fc51"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "cfd9fb4fa936abb9c7ef216b4854fb3c", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复备库提升期间逻辑解码选择时间线时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["0baec0cbb6545813886061f478d7fe09", "1bbd3b28c72161d54ff8850fb5990a90", "afe572d50b5aa93a1a43ac975df96fa6"], "statement_hash": "b5c88f0e08517e3cf00dd9b3461ec817031530e9f8f05c2cde86c91f4ec8fc51"}, "url": "/docs/compare/?release=18.6#18.6-c988b88dbd957c88", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "7c127c9b86c4ff620059a798b7b8dda9", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复备库提升期间逻辑解码选择时间线时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["0baec0cbb6545813886061f478d7fe09", "1bbd3b28c72161d54ff8850fb5990a90", "afe572d50b5aa93a1a43ac975df96fa6"], "statement_hash": "b5c88f0e08517e3cf00dd9b3461ec817031530e9f8f05c2cde86c91f4ec8fc51"}, "url": "/docs/compare/?release=16.15#16.15-d4ff6572d90ae3ad", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}]}, {"id": "17.11-1e3e950c5c9035d8", "cves": [], "html": "避免在时间线跳转期间暴露 WAL 接收进程的完整连接字符串（Chao Li）§
\npg_stat_wal_receiver 视图应显示不含敏感数据的脱敏连接字符串。但复用现有 WAL 接收进程时，它会短暂显示完整字符串。
使用运行时检查而不只是 Asserts，验证逻辑复制期间接收的元组具有正确的列数（Varik Matevosyan）§
\n恶意或有缺陷的发布者可能发送列数不一致的数据。虽然尚未找到会因此产生严重不良后果的场景，但额外谨慎似乎是必要的。
", "text": "使用运行时检查而不只是 Asserts，验证逻辑复制期间接收的元组具有正确的列数（Varik Matevosyan）§ 恶意或有缺陷的发布者可能发送列数不一致的数据。虽然尚未找到会因此产生严重不良后果的场景，但额外谨慎似乎是必要的。", "title": "使用运行时检查而不只是 Asserts，验证逻辑复制期间接收的元组具有正确的列数", "commits": ["15f4e3d0c"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "7162358923c6dcddd61b47a94ddca4dda93b01e9baf24f85076ce43a6bd254d7", "section_path": ["变更"], "commit_groups": [["15f4e3d0c", "510a05f07", "59759e1a5", "871d4f5b6", "bf7d19be9", "dc3db3a83"]], "identity_text": "Use run-time checks, not just Asserts, to verify the correct number of columns in tuples received during logical replication (Varik Matevosyan) A malicious or buggy publisher could send inconsistent numbers of columns. While we could not find a scenario in which this would have serious ill effects, extra caution seems warranted.", "commit_aliases": ["15f4e3d0c", "510a05f07", "59759e1a5", "871d4f5b6", "bf7d19be9", "dc3db3a83"], "source_commits": ["15f4e3d0c"], "source_entry_id": "17.11/changes/072", "db_id": "52499b2c374ab99a8520d4e208b224ca", "patch_ids": ["8665f0efb53857b1f65d3aab55fce701"], "statement_hash": "ccb9933f82e897841fcc7799b27c7cb46784658d50590f121d691ba4eb1ab215", "relations": [{"rule": 2, "type": "equivalent", "target": "29b7d5b8d289c2e83357b4b3887c6ece", "evidence": {"same_day": true, "patch_ids": ["8665f0efb53857b1f65d3aab55fce701"], "statement_hash": "ccb9933f82e897841fcc7799b27c7cb46784658d50590f121d691ba4eb1ab215"}}, {"rule": 2, "type": "equivalent", "target": "2bec14054822093ac2f6b8e098cf50ef", "evidence": {"same_day": true, "patch_ids": ["8665f0efb53857b1f65d3aab55fce701"], "statement_hash": "ccb9933f82e897841fcc7799b27c7cb46784658d50590f121d691ba4eb1ab215"}}, {"rule": 2, "type": "equivalent", "target": "3d36fdfc273db605a521f97942cc7c8b", "evidence": {"same_day": true, "patch_ids": ["8665f0efb53857b1f65d3aab55fce701"], "statement_hash": "ccb9933f82e897841fcc7799b27c7cb46784658d50590f121d691ba4eb1ab215"}}, {"rule": 2, "type": "equivalent", "target": "b984d160c74d462df46c0818a7351ddb", "evidence": {"same_day": true, "patch_ids": ["8665f0efb53857b1f65d3aab55fce701"], "statement_hash": "ccb9933f82e897841fcc7799b27c7cb46784658d50590f121d691ba4eb1ab215"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "29b7d5b8d289c2e83357b4b3887c6ece", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "使用运行时检查而不只是 Asserts，验证逻辑复制期间接收的元组具有正确的列数", "evidence": {"same_day": true, "patch_ids": ["8665f0efb53857b1f65d3aab55fce701"], "statement_hash": "ccb9933f82e897841fcc7799b27c7cb46784658d50590f121d691ba4eb1ab215"}, "url": "/docs/compare/?release=18.6#18.6-842cc1f1f4a2405b", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "3d36fdfc273db605a521f97942cc7c8b", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "使用运行时检查而不只是 Asserts，验证逻辑复制期间接收的元组具有正确的列数", "evidence": {"same_day": true, "patch_ids": ["8665f0efb53857b1f65d3aab55fce701"], "statement_hash": "ccb9933f82e897841fcc7799b27c7cb46784658d50590f121d691ba4eb1ab215"}, "url": "/docs/compare/?release=16.15#16.15-a8762c512498c73b", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "b984d160c74d462df46c0818a7351ddb", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "使用运行时检查而不只是 Asserts，验证逻辑复制期间接收的元组具有正确的列数", "evidence": {"same_day": true, "patch_ids": ["8665f0efb53857b1f65d3aab55fce701"], "statement_hash": "ccb9933f82e897841fcc7799b27c7cb46784658d50590f121d691ba4eb1ab215"}, "url": "/docs/compare/?release=15.19#15.19-8e9a0447c93f98f9", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "2bec14054822093ac2f6b8e098cf50ef", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "使用运行时检查而不只是 Asserts，验证逻辑复制期间接收的元组具有正确的列数", "evidence": {"same_day": true, "patch_ids": ["8665f0efb53857b1f65d3aab55fce701"], "statement_hash": "ccb9933f82e897841fcc7799b27c7cb46784658d50590f121d691ba4eb1ab215"}, "url": "/docs/compare/?release=14.24#14.24-09af4da1397bcb08", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-f6a7585b485a41e6", "cves": [], "html": "改进构造的复制命令中字符串参数的引用处理（Tom Lane）§
\n多处生成复制命令的代码在引用复制槽名称及其他需要插入命令的参数时不够谨慎。这可能导致命令出现意外的语法错误。原则上，精心构造的复制槽名称可能导致 SQL 注入；但这种场景在实践中似乎极不可能发生，因为只有高权限用户才能调用复制操作，而且他们没有理由使用来自不可信来源的槽名称。
", "text": "改进构造的复制命令中字符串参数的引用处理（Tom Lane）§ 多处生成复制命令的代码在引用复制槽名称及其他需要插入命令的参数时不够谨慎。这可能导致命令出现意外的语法错误。原则上，精心构造的复制槽名称可能导致 SQL 注入；但这种场景在实践中似乎极不可能发生，因为只有高权限用户才能调用复制操作，而且他们没有理由使用来自不可信来源的槽名称。", "title": "改进构造的复制命令中字符串参数的引用处理", "commits": ["14810cc0d"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "bc13bf78e55f7150277f4eda67e7faf2b5de10c798467c0e900147f8c9f3d7b9", "section_path": ["变更"], "commit_groups": [["14810cc0d", "26d6c19d0", "2a00840e8", "819e5b964", "a75bd485b", "abb582555"]], "identity_text": "Clean up quoting of string parameters within constructed replication commands (Tom Lane) Various places that generate replication commands were not being adequately careful about quoting replication slot names and other parameters that need to be inserted into those commands. This could result in unexpected syntax errors in those commands. In principle, a crafted replication slot name could result in SQL injection; but such a scenario seems very unlikely to occur in practice, since replication operations can only be invoked by highly-privileged users and there is no reason for them to use a slot name coming from an untrustworthy source.", "commit_aliases": ["14810cc0d", "26d6c19d0", "2a00840e8", "819e5b964", "a75bd485b", "abb582555"], "source_commits": ["14810cc0d"], "source_entry_id": "17.11/changes/073", "db_id": "de678a747a30bf549de927b53ebbc3e7", "patch_ids": ["32ecc5c79c988e036daa92766ab9c826"], "statement_hash": "247fbb71eedfaa36fb21d3377adab99beeefb9b4863ba98c464369fe5a6bc0fa", "relations": [{"rule": 2, "type": "equivalent", "target": "1ef980c1780b85528850bbdd9466fa41", "evidence": {"same_day": true, "patch_ids": ["32ecc5c79c988e036daa92766ab9c826"], "statement_hash": "247fbb71eedfaa36fb21d3377adab99beeefb9b4863ba98c464369fe5a6bc0fa"}}, {"rule": 2, "type": "equivalent", "target": "492d74031b46a2dbdba89517c2392411", "evidence": {"same_day": true, "patch_ids": ["32ecc5c79c988e036daa92766ab9c826"], "statement_hash": "247fbb71eedfaa36fb21d3377adab99beeefb9b4863ba98c464369fe5a6bc0fa"}}, {"rule": 2, "type": "equivalent", "target": "54ed2b1cad03859f062c5ae13dc62693", "evidence": {"same_day": true, "patch_ids": ["32ecc5c79c988e036daa92766ab9c826"], "statement_hash": "247fbb71eedfaa36fb21d3377adab99beeefb9b4863ba98c464369fe5a6bc0fa"}}, {"rule": 2, "type": "equivalent", "target": "74c4a1b4a808ecb95dfae29020191080", "evidence": {"same_day": true, "patch_ids": ["32ecc5c79c988e036daa92766ab9c826"], "statement_hash": "247fbb71eedfaa36fb21d3377adab99beeefb9b4863ba98c464369fe5a6bc0fa"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "1ef980c1780b85528850bbdd9466fa41", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "改进构造的复制命令中字符串参数的引用处理", "evidence": {"same_day": true, "patch_ids": ["32ecc5c79c988e036daa92766ab9c826"], "statement_hash": "247fbb71eedfaa36fb21d3377adab99beeefb9b4863ba98c464369fe5a6bc0fa"}, "url": "/docs/compare/?release=18.6#18.6-9e33f830eed35c6f", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "74c4a1b4a808ecb95dfae29020191080", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "改进构造的复制命令中字符串参数的引用处理", "evidence": {"same_day": true, "patch_ids": ["32ecc5c79c988e036daa92766ab9c826"], "statement_hash": "247fbb71eedfaa36fb21d3377adab99beeefb9b4863ba98c464369fe5a6bc0fa"}, "url": "/docs/compare/?release=16.15#16.15-af8c105159d57f3b", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "492d74031b46a2dbdba89517c2392411", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "改进构造的复制命令中字符串参数的引用处理", "evidence": {"same_day": true, "patch_ids": ["32ecc5c79c988e036daa92766ab9c826"], "statement_hash": "247fbb71eedfaa36fb21d3377adab99beeefb9b4863ba98c464369fe5a6bc0fa"}, "url": "/docs/compare/?release=15.19#15.19-f46d264eacda5b12", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "54ed2b1cad03859f062c5ae13dc62693", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "改进构造的复制命令中字符串参数的引用处理", "evidence": {"same_day": true, "patch_ids": ["32ecc5c79c988e036daa92766ab9c826"], "statement_hash": "247fbb71eedfaa36fb21d3377adab99beeefb9b4863ba98c464369fe5a6bc0fa"}, "url": "/docs/compare/?release=14.24#14.24-064a7da098f9ba6c", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-4fcd3ca4da51d952", "cves": [], "html": "修复对空预备事务的逻辑解码（Masahiko Sawada）§
\n未产生任何可解码更新的预备事务可能导致向输出插件发送 COMMIT/ROLLBACK PREPARED，而之前没有发送 PREPARE。对于内置订阅者，这会破坏复制，其他插件很可能也无法正确处理。
修复备库提升后不记录 WAL 的序列损坏的问题（Fujii Masao）§
\n此前，如果在主库上创建了不记录 WAL 的序列并将其复制到备库，那么提升备库后访问该序列可能会失败，并出现 “bad magic number in sequence” 或相关错误。
", "text": "修复备库提升后不记录 WAL 的序列损坏的问题（Fujii Masao）§ 此前，如果在主库上创建了不记录 WAL 的序列并将其复制到备库，那么提升备库后访问该序列可能会失败，并出现 “bad magic number in sequence” 或相关错误。", "title": "修复备库提升后不记录 WAL 的序列损坏的问题", "commits": ["a1ed6a9a0"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "56b2da6b25964fdf7de9d7c75d5d514f8df633b0e0135487a0b379385f9da887", "section_path": ["变更"], "commit_groups": [["22af34b98", "627605713", "8e684ce11", "913d3b610", "a1ed6a9a0", "d2980067b"]], "identity_text": "Fix corruption of unlogged sequences after standby promotion (Fujii Masao) Previously, if an unlogged sequence was created on the primary and replicated to a standby, accessing the sequence after promoting the standby could fail with bad magic number in sequence or related errors.", "commit_aliases": ["22af34b98", "627605713", "8e684ce11", "913d3b610", "a1ed6a9a0", "d2980067b"], "source_commits": ["a1ed6a9a0"], "source_entry_id": "17.11/changes/075", "db_id": "04e99de2d6b9c7c2dbe0bac4e30b6b62", "patch_ids": ["0c00c75b81c9cf4e2c7dd727d7f47148"], "statement_hash": "6ef22cc70bed7a3bdbb01c79c02e183283e72e3ea1060f614fc65f0d30467462", "relations": [{"rule": 2, "type": "equivalent", "target": "1ce08b2128763f685c989c7f545e1b3e", "evidence": {"same_day": true, "patch_ids": ["0c00c75b81c9cf4e2c7dd727d7f47148"], "statement_hash": "6ef22cc70bed7a3bdbb01c79c02e183283e72e3ea1060f614fc65f0d30467462"}}, {"rule": 2, "type": "equivalent", "target": "7c75fcad7f434b0760cdb29e86f36c46", "evidence": {"same_day": true, "patch_ids": ["0c00c75b81c9cf4e2c7dd727d7f47148"], "statement_hash": "6ef22cc70bed7a3bdbb01c79c02e183283e72e3ea1060f614fc65f0d30467462"}}, {"rule": 2, "type": "equivalent", "target": "ecc31612cc8e203d9211831d84c3f264", "evidence": {"same_day": true, "patch_ids": ["0c00c75b81c9cf4e2c7dd727d7f47148"], "statement_hash": "6ef22cc70bed7a3bdbb01c79c02e183283e72e3ea1060f614fc65f0d30467462"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "7c75fcad7f434b0760cdb29e86f36c46", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复备库提升后不记录 WAL 的序列损坏的问题", "evidence": {"same_day": true, "patch_ids": ["0c00c75b81c9cf4e2c7dd727d7f47148"], "statement_hash": "6ef22cc70bed7a3bdbb01c79c02e183283e72e3ea1060f614fc65f0d30467462"}, "url": "/docs/compare/?release=18.6#18.6-a4136eca0096397b", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "1ce08b2128763f685c989c7f545e1b3e", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复备库提升后不记录 WAL 的序列损坏的问题", "evidence": {"same_day": true, "patch_ids": ["0c00c75b81c9cf4e2c7dd727d7f47148"], "statement_hash": "6ef22cc70bed7a3bdbb01c79c02e183283e72e3ea1060f614fc65f0d30467462"}, "url": "/docs/compare/?release=16.15#16.15-5f2f728c30848e40", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "ecc31612cc8e203d9211831d84c3f264", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复备库提升后不记录 WAL 的序列损坏的问题", "evidence": {"same_day": true, "patch_ids": ["0c00c75b81c9cf4e2c7dd727d7f47148"], "statement_hash": "6ef22cc70bed7a3bdbb01c79c02e183283e72e3ea1060f614fc65f0d30467462"}, "url": "/docs/compare/?release=15.19#15.19-88702f651f9db1ae", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}]}, {"id": "17.11-8291f394c20dacdc", "cves": [], "html": "修复回退到归档后级联备库无法重新连接的问题（Marco Nenciarini）§
\n回退到归档恢复后，级联备库可能因 “requested starting point ... is ahead of the WAL flush position” 而无法重新连接到其上游备库。
", "text": "修复回退到归档后级联备库无法重新连接的问题（Marco Nenciarini）§ 回退到归档恢复后，级联备库可能因 “requested starting point ... is ahead of the WAL flush position” 而无法重新连接到其上游备库。", "title": "修复回退到归档后级联备库无法重新连接的问题", "commits": ["2cf28d1b9"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "b4b13703ffe24452dbaaf532d75735c681518fbf7e5f738b18bd03a43cd757c0", "section_path": ["变更"], "commit_groups": [["2cf28d1b9", "331016322", "5dbeb69bc", "5fb3c6389", "8f64cc83f", "b614de487", "bef46aed3"]], "identity_text": "Fix cascading standby reconnect failure after archive fallback (Marco Nenciarini) A cascading standby could fail to reconnect to its upstream standby with requested starting point ... is ahead of the WAL flush position after falling back to archive recovery.", "commit_aliases": ["2cf28d1b9", "331016322", "5dbeb69bc", "5fb3c6389", "8f64cc83f", "b614de487", "bef46aed3"], "source_commits": ["2cf28d1b9"], "source_entry_id": "17.11/changes/076", "db_id": "b17ef22f538327cabf0726e1b3f902cc", "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"], "statement_hash": "fb1d8ff1de50924ae1113199938a0ff6d45296b275bab29a749f5176ddbc64ad", "relations": [{"rule": 2, "type": "related", "target": "027ccc17f71deb2b38e14fc8cc82dccd", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"], "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}}, {"rule": 2, "type": "related", "target": "1b34d3e2b18d75096fd2914d3673446c", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"], "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}}, {"rule": 2, "type": "equivalent", "target": "1ba572e4a9f5584ecce320e293d4b258", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"], "statement_hash": "fb1d8ff1de50924ae1113199938a0ff6d45296b275bab29a749f5176ddbc64ad", "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}}, {"rule": 2, "type": "related", "target": 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"ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}, "url": "/docs/compare/?release=18.6#18.6-e75bd84b8c02b997", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "1b34d3e2b18d75096fd2914d3673446c", "kind": "related", "version": "18.6", "label": "18.6", "title": "修复 to_char() 处理过长时区缩写时发生的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"], "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}, "url": "/docs/compare/?release=18.6#18.6-251aba36d837c523", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "bf82a2510c4dfe4309435e9bce0ab3a4", "kind": "related", "version": "17.11", "label": "17.11", "title": "修复 to_char() 处理过长时区缩写时发生的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"], "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}, "url": "/docs/compare/?release=17.11#17.11-9aaf551ddc6d8e1b", "source_url": 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"bfa88fa3d381bbc9b7ee7a8614ea363c", "kind": "related", "version": "15.19", "label": "15.19", "title": "修复 to_char() 处理过长时区缩写时发生的缓冲区越界写入", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"], "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}, "url": "/docs/compare/?release=15.19#15.19-4395db3387c7cd38-1", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "771fa954f9b22168a0764dc12074dadb", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复回退到归档后级联备库无法重新连接的问题", "evidence": {"same_day": true, "patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"], "statement_hash": "fb1d8ff1de50924ae1113199938a0ff6d45296b275bab29a749f5176ddbc64ad", "ambiguous_patch_ids": ["8d6dc29f16ca43220ac734ee400f5ee9"]}, "url": "/docs/compare/?release=15.19#15.19-4395db3387c7cd38-2", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "ea24770278021c00f25a8b13bceb2a2c", "kind": "equivalent", "version": "14.24", "label": 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事件触发器清理尝试在备库和主库上都执行该操作。它在备库上无法奏效，而且没有必要，因为重放主库的数据库变更很快就会修复该值。
", "text": "不要尝试在备库本地清除 pg_database.dathasloginevt（Ayush Tiwari）§ 事件触发器清理尝试在备库和主库上都执行该操作。它在备库上无法奏效，而且没有必要，因为重放主库的数据库变更很快就会修复该值。", "title": "不要尝试在备库本地清除 pg_database.dathasloginevt", "commits": ["4a375527a"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "9160c7de11017a80cbf5cbefd5227ca3dd33e37c025bd13302c0e5ae5d07aae8", "section_path": ["变更"], "commit_groups": [["4a375527a", "97b5c5aaa", "bec61f593"]], "identity_text": "Do not try to clear pg_database.dathasloginevt locally on a standby server (Ayush Tiwari) Event trigger cleanup tried to perform that action on standby servers as well as the primary. That can't work on a standby, and there's no need anyway since replay of the primary's database change will soon fix it.", "commit_aliases": ["4a375527a", "97b5c5aaa", "bec61f593"], "source_commits": ["4a375527a"], "source_entry_id": "17.11/changes/077", "db_id": "2652e45990dd9ead74f7cb1a60cd06ae", "patch_ids": ["4ce4f54c8bf735435a0cd83d5e3fd94c"], "statement_hash": "ccdeea440cff75c363fd3daa73d137e4deed890abd48b629fa6387377abac755", "relations": [{"rule": 2, "type": "equivalent", "target": "c7c89eea0ca114afbedbf0cfbae711f9", "evidence": {"same_day": true, "patch_ids": ["4ce4f54c8bf735435a0cd83d5e3fd94c"], "statement_hash": "ccdeea440cff75c363fd3daa73d137e4deed890abd48b629fa6387377abac755"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "c7c89eea0ca114afbedbf0cfbae711f9", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "不要尝试在备库本地清除 pg_database.dathasloginevt", "evidence": {"same_day": true, "patch_ids": ["4ce4f54c8bf735435a0cd83d5e3fd94c"], "statement_hash": "ccdeea440cff75c363fd3daa73d137e4deed890abd48b629fa6387377abac755"}, "url": "/docs/compare/?release=18.6#18.6-d53aeb4078876f26", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-5aeb772ab7b96772", "cves": [], "html": "避免删除过时复制槽时的竞态条件（Xuneng Zhou）§
\n如果另一个会话立即复用了已删除复制槽的共享内存条目，可能会错误地执行解锁并输出不正确的日志消息。
", "text": "避免删除过时复制槽时的竞态条件（Xuneng Zhou）§ 如果另一个会话立即复用了已删除复制槽的共享内存条目，可能会错误地执行解锁并输出不正确的日志消息。", "title": "避免删除过时复制槽时的竞态条件", "commits": ["ea834d747"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "358499c168613fabbb13a197047b85f06acb371e9aac3720db37e8040a5d0109", "section_path": ["变更"], "commit_groups": [["08458bcae", "bdae2c20e", "ea834d747"]], "identity_text": "Avoid race condition while dropping obsolete replication slots (Xuneng Zhou) An incorrect unlock and log message could occur if another session immediately re-used the dropped slot's shared-memory entry.", "commit_aliases": ["08458bcae", "bdae2c20e", "ea834d747"], "source_commits": ["ea834d747"], "source_entry_id": "17.11/changes/078", "db_id": "2724a08367b4dc82b3441236c9f9b14b", "patch_ids": ["c73474c335bb9d2b86b6bc7565e6f72b"], "statement_hash": "14c10b585f72cec70dc64da094d3d2d2e80cef7b71ab92442a40f2f70c386a62", "relations": [{"rule": 2, "type": "equivalent", "target": "3dd18331742596637d053910b38a1f16", "evidence": {"same_day": true, "patch_ids": ["c73474c335bb9d2b86b6bc7565e6f72b"], "statement_hash": "14c10b585f72cec70dc64da094d3d2d2e80cef7b71ab92442a40f2f70c386a62"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "3dd18331742596637d053910b38a1f16", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "避免删除过时复制槽时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["c73474c335bb9d2b86b6bc7565e6f72b"], "statement_hash": "14c10b585f72cec70dc64da094d3d2d2e80cef7b71ab92442a40f2f70c386a62"}, "url": "/docs/compare/?release=18.6#18.6-da8598a35476aae4", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-1bc3f286c6ac2176", "cves": [], "html": "避免删除临时复制槽时的竞态条件（Zhijie Hou）§
\n释放槽的代码在释放复制槽后，还会对该槽的共享内存条目执行一些额外更新。这并不安全，因为另一个会话可能立即复用已删除槽的共享内存条目。对于临时槽，现跳过这些更新。
", "text": "避免删除临时复制槽时的竞态条件（Zhijie Hou）§ 释放槽的代码在释放复制槽后，还会对该槽的共享内存条目执行一些额外更新。这并不安全，因为另一个会话可能立即复用已删除槽的共享内存条目。对于临时槽，现跳过这些更新。", "title": "避免删除临时复制槽时的竞态条件", "commits": ["080d61f07"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "46a96c9ba707acfa5dec271620cc9f7bb02a25ab0af69b1009844fd569044c2f", "section_path": ["变更"], "commit_groups": [["080d61f07", "51e79222c", "968c50845", "a4eb59d40", "f2081a780", "f833c9207"]], "identity_text": "Avoid race condition while dropping ephemeral replication slots (Zhijie Hou) The slot-releasing code performed some additional updates to the replication slot's shared-memory entry after releasing the slot. This is unsafe since another session could immediately re-use the dropped slot's shared-memory entry. Skip those updates in the case of an ephemeral slot.", "commit_aliases": ["080d61f07", "51e79222c", "968c50845", "a4eb59d40", "f2081a780", "f833c9207"], "source_commits": ["080d61f07"], "source_entry_id": "17.11/changes/079", "db_id": "56d06487f4f5f34eaa3c2bcb9a9adcec", "patch_ids": ["a917b168697862cb05827b9e9d804879"], "statement_hash": "87055d6044521ae3f6b6a74d5c840e75e79be3ee687ddbb92cb366dcb1601282", "relations": [{"rule": 2, "type": "equivalent", "target": "68414efdd4fd28ffb448691fcc350390", "evidence": {"same_day": true, "patch_ids": ["a917b168697862cb05827b9e9d804879"], "statement_hash": "87055d6044521ae3f6b6a74d5c840e75e79be3ee687ddbb92cb366dcb1601282"}}, {"rule": 2, "type": "equivalent", "target": "acb52269a9ab57fd523cb58a71e121ec", "evidence": {"same_day": true, "patch_ids": ["a917b168697862cb05827b9e9d804879"], "statement_hash": "87055d6044521ae3f6b6a74d5c840e75e79be3ee687ddbb92cb366dcb1601282"}}, {"rule": 2, "type": "equivalent", "target": "e7a4717de56195de8e84ae36133e6f25", "evidence": {"same_day": true, "patch_ids": ["a917b168697862cb05827b9e9d804879"], "statement_hash": "87055d6044521ae3f6b6a74d5c840e75e79be3ee687ddbb92cb366dcb1601282"}}, {"rule": 2, "type": "equivalent", "target": "f11ac7346f20210841ca22799f957bad", "evidence": {"same_day": true, "patch_ids": ["a917b168697862cb05827b9e9d804879"], "statement_hash": "87055d6044521ae3f6b6a74d5c840e75e79be3ee687ddbb92cb366dcb1601282"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "e7a4717de56195de8e84ae36133e6f25", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "避免删除临时复制槽时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["a917b168697862cb05827b9e9d804879"], "statement_hash": "87055d6044521ae3f6b6a74d5c840e75e79be3ee687ddbb92cb366dcb1601282"}, "url": "/docs/compare/?release=18.6#18.6-63934e389520e7b8", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "f11ac7346f20210841ca22799f957bad", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "避免删除临时复制槽时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["a917b168697862cb05827b9e9d804879"], "statement_hash": "87055d6044521ae3f6b6a74d5c840e75e79be3ee687ddbb92cb366dcb1601282"}, "url": "/docs/compare/?release=16.15#16.15-2f83798db4bea0d0", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "68414efdd4fd28ffb448691fcc350390", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "避免删除临时复制槽时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["a917b168697862cb05827b9e9d804879"], "statement_hash": "87055d6044521ae3f6b6a74d5c840e75e79be3ee687ddbb92cb366dcb1601282"}, "url": "/docs/compare/?release=15.19#15.19-1a1d1e09b86ffe89", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "acb52269a9ab57fd523cb58a71e121ec", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "避免删除临时复制槽时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["a917b168697862cb05827b9e9d804879"], "statement_hash": "87055d6044521ae3f6b6a74d5c840e75e79be3ee687ddbb92cb366dcb1601282"}, "url": "/docs/compare/?release=14.24#14.24-b14b0a9051dbe228", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-502303232ec37c57", "cves": [], "html": "修复逻辑复制表同步期间陈旧的进度报告（Shinya Kato）§
\n此前，即使数据复制已经完成，订阅者中的 pg_stat_progress_copy 视图仍会把最初的 COPY 操作显示为活动状态。在同步追上发布者之前，该陈旧条目会一直可见。
此前，失败后 pg_stat_progress_basebackup 视图会继续显示过时的进度条目，直到复制客户端断开连接。 pg_basebackup 通常会立即断开连接，但其他客户端可能不会。
修复启用 track_functions 时并发删除 pgstats 条目可能导致的 PANIC（Sami Imseih、Michael Paquier）§ § §
未能为对应的共享 hash 表条目获取空间后，清理已损坏的本地 pgstats 条目（Niall Newman）§
\n如果不进行清理，下次使用该本地条目时会导致空指针解引用。
", "text": "未能为对应的共享 hash 表条目获取空间后，清理已损坏的本地 pgstats 条目（Niall Newman）§ 如果不进行清理，下次使用该本地条目时会导致空指针解引用。", "title": "未能为对应的共享 hash 表条目获取空间后，清理已损坏的本地 pgstats 条目", "commits": ["fc9283b21"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "d5433b0dff80d53189e0dcf6a4bfa56a7985815ad988b2b68e1340f2aa4ea278", "section_path": ["变更"], "commit_groups": [["10e20e59e", "2fd8d45ec", "4069df21b", "636bcd6a5", "89fc6a7c1", "fc9283b21"]], "identity_text": "Clean up broken local pgstats entry after failing to obtain space for the corresponding shared hashtable entry (Niall Newman) Failure to do this led to a null-pointer dereference the next time the local entry was used.", "commit_aliases": ["10e20e59e", "2fd8d45ec", "4069df21b", "636bcd6a5", "89fc6a7c1", "fc9283b21"], "source_commits": ["fc9283b21"], "source_entry_id": "17.11/changes/083", "db_id": "65cb52740b6d4b79d67968be77af89f3", "patch_ids": ["073249ed6bcae15bb6d4063aa8558bab"], "statement_hash": "c60eb3598315d881be3eccb1a6430b61a597e0457159bd9304d33bd0c753b70e", "relations": [{"rule": 2, "type": "equivalent", "target": "1afc7388a3b74ce2c49cb081c26f6f41", "evidence": {"same_day": true, "patch_ids": ["073249ed6bcae15bb6d4063aa8558bab"], "statement_hash": "c60eb3598315d881be3eccb1a6430b61a597e0457159bd9304d33bd0c753b70e"}}, {"rule": 2, "type": "equivalent", "target": "69bb916ea3e2500fcf1ca6568c60960f", "evidence": {"same_day": true, "patch_ids": ["073249ed6bcae15bb6d4063aa8558bab"], "statement_hash": "c60eb3598315d881be3eccb1a6430b61a597e0457159bd9304d33bd0c753b70e"}}, {"rule": 2, "type": "equivalent", "target": "b6f5540e817eacbe3e2ce2803c428998", "evidence": {"same_day": true, "patch_ids": ["073249ed6bcae15bb6d4063aa8558bab"], "statement_hash": "c60eb3598315d881be3eccb1a6430b61a597e0457159bd9304d33bd0c753b70e"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "69bb916ea3e2500fcf1ca6568c60960f", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "未能为对应的共享 hash 表条目获取空间后，清理已损坏的本地 pgstats 条目", "evidence": {"same_day": true, "patch_ids": ["073249ed6bcae15bb6d4063aa8558bab"], "statement_hash": "c60eb3598315d881be3eccb1a6430b61a597e0457159bd9304d33bd0c753b70e"}, "url": "/docs/compare/?release=18.6#18.6-8e68cf04f8d3d622", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "1afc7388a3b74ce2c49cb081c26f6f41", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "未能为对应的共享 hash 表条目获取空间后，清理已损坏的本地 pgstats 条目", "evidence": {"same_day": true, "patch_ids": ["073249ed6bcae15bb6d4063aa8558bab"], "statement_hash": "c60eb3598315d881be3eccb1a6430b61a597e0457159bd9304d33bd0c753b70e"}, "url": "/docs/compare/?release=16.15#16.15-4aba6cb90f1218ec", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "b6f5540e817eacbe3e2ce2803c428998", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "未能为对应的共享 hash 表条目获取空间后，清理已损坏的本地 pgstats 条目", "evidence": {"same_day": true, "patch_ids": ["073249ed6bcae15bb6d4063aa8558bab"], "statement_hash": "c60eb3598315d881be3eccb1a6430b61a597e0457159bd9304d33bd0c753b70e"}, "url": "/docs/compare/?release=15.19#15.19-038be6e3a9588b97", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}]}, {"id": "17.11-df7c413d42462d43", "cves": [], "html": "在 PL/Perl 中，避免处理无效的 PostgreSQL::InServer::ARRAY 对象时因解引用 NULL 指针而崩溃（Xing Guo）§
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\n此前，损坏的对象或未处理的异常可能导致解引用 NULL 指针而崩溃。
", "text": "在 PL/Python 中，正确检查处理序列和映射对象时发生的错误（Richard Guo）§ 此前，损坏的对象或未处理的异常可能导致解引用 NULL 指针而崩溃。", "title": "在 PL/Python 中，正确检查处理序列和映射对象时发生的错误", "commits": ["3dc59c173"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "92cd93b5cc231de64abe0b88c8eaaa7550454153c37e13e6d25886fb4ba3d7a9", "section_path": ["变更"], "commit_groups": [["0b7719f74", "12bff46ff", "3dc59c173", "53482fcb9", "8612f0b7c", "e92f23bde"], ["309dc4526"]], "identity_text": "In PL/Python, properly check for errors when working with sequence and mapping objects (Richard Guo) Previously, a broken object or an unhandled exception could result in a NULL pointer dereference crash.", "commit_aliases": ["0b7719f74", "12bff46ff", "309dc4526", "3dc59c173", "53482fcb9", "8612f0b7c", "e92f23bde"], "source_commits": ["309dc4526", "3dc59c173"], "source_entry_id": "17.11/changes/085", "db_id": "5ee9ccfc012c4ede5db692562772a752", "patch_ids": ["82aeda458da615307371e8d49ed0abdd", "a96949fcfb8c6bac8cc1705ad8aa548e"], "statement_hash": "33d469b3040d6c202f91bb0448f11a09e5ddae64c76bb00e48ee5634543c64ee", "relations": [{"rule": 2, "type": "equivalent", "target": "1bcdb1bad2833f07d4dbdd7f3fd25692", "evidence": {"same_day": true, "patch_ids": ["82aeda458da615307371e8d49ed0abdd", "a96949fcfb8c6bac8cc1705ad8aa548e"], "statement_hash": "33d469b3040d6c202f91bb0448f11a09e5ddae64c76bb00e48ee5634543c64ee"}}, {"rule": 2, "type": "equivalent", "target": "7c536b903c2b846285e39de4051f4dda", "evidence": {"same_day": true, "patch_ids": ["82aeda458da615307371e8d49ed0abdd", "a96949fcfb8c6bac8cc1705ad8aa548e"], "statement_hash": "33d469b3040d6c202f91bb0448f11a09e5ddae64c76bb00e48ee5634543c64ee"}}, {"rule": 2, "type": "equivalent", "target": "c6334af88dcf8bb00a0c24becb0804c2", "evidence": {"same_day": true, "patch_ids": ["82aeda458da615307371e8d49ed0abdd", "a96949fcfb8c6bac8cc1705ad8aa548e"], "statement_hash": "33d469b3040d6c202f91bb0448f11a09e5ddae64c76bb00e48ee5634543c64ee"}}, {"rule": 2, "type": "equivalent", "target": "c7d8f5074aecff2a6209080fb7907c5d", "evidence": {"same_day": true, "patch_ids": ["82aeda458da615307371e8d49ed0abdd", "a96949fcfb8c6bac8cc1705ad8aa548e"], "statement_hash": "33d469b3040d6c202f91bb0448f11a09e5ddae64c76bb00e48ee5634543c64ee"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "c6334af88dcf8bb00a0c24becb0804c2", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "在 PL/Python 中，正确检查处理序列和映射对象时发生的错误", "evidence": {"same_day": true, "patch_ids": ["82aeda458da615307371e8d49ed0abdd", "a96949fcfb8c6bac8cc1705ad8aa548e"], "statement_hash": "33d469b3040d6c202f91bb0448f11a09e5ddae64c76bb00e48ee5634543c64ee"}, "url": "/docs/compare/?release=18.6#18.6-728c054c41aaf74d", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "c7d8f5074aecff2a6209080fb7907c5d", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "在 PL/Python 中，正确检查处理序列和映射对象时发生的错误", "evidence": {"same_day": true, "patch_ids": ["82aeda458da615307371e8d49ed0abdd", "a96949fcfb8c6bac8cc1705ad8aa548e"], "statement_hash": "33d469b3040d6c202f91bb0448f11a09e5ddae64c76bb00e48ee5634543c64ee"}, "url": "/docs/compare/?release=16.15#16.15-9e4400c5ffdc6cca", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "7c536b903c2b846285e39de4051f4dda", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "在 PL/Python 中，正确检查处理序列和映射对象时发生的错误", "evidence": {"same_day": true, "patch_ids": ["82aeda458da615307371e8d49ed0abdd", "a96949fcfb8c6bac8cc1705ad8aa548e"], "statement_hash": "33d469b3040d6c202f91bb0448f11a09e5ddae64c76bb00e48ee5634543c64ee"}, "url": "/docs/compare/?release=15.19#15.19-b21d9c4c946d0a95", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "1bcdb1bad2833f07d4dbdd7f3fd25692", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "在 PL/Python 中，正确检查处理序列和映射对象时发生的错误", "evidence": {"same_day": true, "patch_ids": ["82aeda458da615307371e8d49ed0abdd", "a96949fcfb8c6bac8cc1705ad8aa548e"], "statement_hash": "33d469b3040d6c202f91bb0448f11a09e5ddae64c76bb00e48ee5634543c64ee"}, "url": "/docs/compare/?release=14.24#14.24-6e7031366ea0564c", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-ece298bedf647a6a", "cves": [], "html": "在 libpq 中，执行 pqReadData() 时始终排空 SSL 或 GSS 解密缓冲区中所有待处理的字节（Jacob Champion）§ § § §
这可以避免一种边界情况：libpq 或调用它的应用程序等待套接字上有更多数据到达，而实际上所有数据都已经到达。
", "text": "在 libpq 中，执行 pqReadData() 时始终排空 SSL 或 GSS 解密缓冲区中所有待处理的字节（Jacob Champion）§ § § § 这可以避免一种边界情况：libpq 或调用它的应用程序等待套接字上有更多数据到达，而实际上所有数据都已经到达。", "title": "在 libpq 中，执行 pqReadData() 时始终排空 SSL 或 GSS 解密缓冲区中所有待处理的字节", "commits": ["0958c3ea4", "177a2a2e3", "bab0a2db7", "c162810a5"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "f4a41f0b3afb4519e1a4d6be6f23b6a5e750a1b6641160a50a64e42699ace007", "section_path": ["变更"], "commit_groups": [["05908afcd", "177a2a2e3", "343594a26", "477bc27a5", "7f8745543", "bb0a54518", "d3888c90a"], ["0958c3ea4", "21a6c69ea", "27761c015", "536512f34", "6243ea6c3", "d293f0345", "f5f569713"], ["17accbe0f", "56988064b", "5ba13f8c0", "7532f2117", "87c3a79ea", "bab0a2db7", "d9eb70c9c"], ["1b018b5d1", "2167302b7", "4ecba7fa3", "c162810a5", "d3f329656", "eeb2940ae", "ffd080d94"]], "identity_text": "In libpq, always drain all pending bytes from the SSL or GSS decryption buffer during 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\n此前，libpq 的有效性启发规则并未把这种消息类型视为可能很长。此限制会导致参数超过 7498 个的预备查询失败；这种情况虽然不太可能出现，但系统确实支持。
", "text": "允许 libpq 接受超过 30000 字节的 ParameterDescription 消息（Ning Sun）§ 此前，libpq 的有效性启发规则并未把这种消息类型视为可能很长。此限制会导致参数超过 7498 个的预备查询失败；这种情况虽然不太可能出现，但系统确实支持。", "title": "允许 libpq 接受超过 30000 字节的 ParameterDescription 消息", "commits": ["e4183c667"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "27947a9065a0390840bb24fdcc6246e8e8600c15c9eba4eb2f9e05fb3c001490", "section_path": ["变更"], "commit_groups": [["0f63b74a4", "1b79c8d1a", "8d516d2b9", "b1ab4bc52", "e0511883c", "e4183c667"]], "identity_text": "Allow libpq to accept ParameterDescription messages exceeding 30000 bytes (Ning Sun) Previously, this message type was not among those that libpq's validity heuristics believed could be long. The limit resulted in failure for prepared queries having more than 7498 parameters, which is unlikely but supported.", "commit_aliases": ["0f63b74a4", "1b79c8d1a", "8d516d2b9", "b1ab4bc52", "e0511883c", "e4183c667"], "source_commits": ["e4183c667"], "source_entry_id": "17.11/changes/087", "db_id": "97c44cf1d7b9b31d86691416921a75e4", "patch_ids": ["b6b26c4c8b27c2138732ea0f070c591b"], "statement_hash": "2bf8dba03893ccac611f0c0a15dfeaa8cb7ed7f18e2fbb58d26e630ffd77a548", "relations": [{"rule": 2, "type": "equivalent", "target": "5ebbe0622604b80c5219c1c82f7d9aca", "evidence": {"same_day": true, "patch_ids": ["b6b26c4c8b27c2138732ea0f070c591b"], "statement_hash": "2bf8dba03893ccac611f0c0a15dfeaa8cb7ed7f18e2fbb58d26e630ffd77a548"}}, {"rule": 2, "type": "equivalent", "target": "7b36888afdccf5778f4b3d9b3f4d4b19", "evidence": {"same_day": true, "patch_ids": ["b6b26c4c8b27c2138732ea0f070c591b"], "statement_hash": "2bf8dba03893ccac611f0c0a15dfeaa8cb7ed7f18e2fbb58d26e630ffd77a548"}}, {"rule": 2, "type": "equivalent", "target": "96f87cdaa195bfc8af2e374fe5cd785d", "evidence": {"same_day": true, "patch_ids": ["b6b26c4c8b27c2138732ea0f070c591b"], "statement_hash": "2bf8dba03893ccac611f0c0a15dfeaa8cb7ed7f18e2fbb58d26e630ffd77a548"}}, {"rule": 2, "type": "equivalent", "target": "c1e7d9148740f6776370a4a75311e436", "evidence": {"same_day": true, "patch_ids": ["b6b26c4c8b27c2138732ea0f070c591b"], "statement_hash": "2bf8dba03893ccac611f0c0a15dfeaa8cb7ed7f18e2fbb58d26e630ffd77a548"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "c1e7d9148740f6776370a4a75311e436", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "允许 libpq 接受超过 30000 字节的 ParameterDescription 消息", "evidence": {"same_day": true, "patch_ids": ["b6b26c4c8b27c2138732ea0f070c591b"], "statement_hash": "2bf8dba03893ccac611f0c0a15dfeaa8cb7ed7f18e2fbb58d26e630ffd77a548"}, "url": "/docs/compare/?release=18.6#18.6-524638e22a952ee0", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "7b36888afdccf5778f4b3d9b3f4d4b19", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "允许 libpq 接受超过 30000 字节的 ParameterDescription 消息", "evidence": {"same_day": true, "patch_ids": ["b6b26c4c8b27c2138732ea0f070c591b"], "statement_hash": "2bf8dba03893ccac611f0c0a15dfeaa8cb7ed7f18e2fbb58d26e630ffd77a548"}, "url": "/docs/compare/?release=16.15#16.15-d31bbe08eb795d29", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "5ebbe0622604b80c5219c1c82f7d9aca", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "允许 libpq 接受超过 30000 字节的 ParameterDescription 消息", "evidence": {"same_day": true, "patch_ids": ["b6b26c4c8b27c2138732ea0f070c591b"], "statement_hash": "2bf8dba03893ccac611f0c0a15dfeaa8cb7ed7f18e2fbb58d26e630ffd77a548"}, "url": "/docs/compare/?release=15.19#15.19-30059fe54da9df27", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "96f87cdaa195bfc8af2e374fe5cd785d", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "允许 libpq 接受超过 30000 字节的 ParameterDescription 消息", "evidence": {"same_day": true, "patch_ids": ["b6b26c4c8b27c2138732ea0f070c591b"], "statement_hash": "2bf8dba03893ccac611f0c0a15dfeaa8cb7ed7f18e2fbb58d26e630ffd77a548"}, "url": "/docs/compare/?release=14.24#14.24-95bdb4ccbaf1b4f7", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-4edba097ad3499b7", "cves": [], "html": "拒绝 ecpg 的 GET/SET DESCRIPTOR 语句中存在多个描述符首部项（Masashi Kamura）§
此前语法允许这种形式，但会生成有缺陷的 C 代码。现调整语法和文档，只允许一个首部项。
", "text": "拒绝 ecpg 的 GET/SET DESCRIPTOR 语句中存在多个描述符首部项（Masashi Kamura）§ 此前语法允许这种形式，但会生成有缺陷的 C 代码。现调整语法和文档，只允许一个首部项。", "title": "拒绝 ecpg 的 GET/SET DESCRIPTOR 语句中存在多个描述符首部项", "commits": ["fe8c0a762"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "aa484bb70808285fe57f6603ed54e77e7851ac4cba032f594a2a5643eaa09f1b", "section_path": ["变更"], "commit_groups": [["081434b0f", "4484165b0", "4d4b73cfd", "9e8fd9f7a", "bfeddcf09", "fe8c0a762"]], "identity_text": "Reject multiple descriptor header items in ecpg's GET/SET DESCRIPTOR statements (Masashi Kamura) Previously the grammar allowed this syntax, but broken C code was generated. Adjust the grammar and the documentation to allow only one header item.", "commit_aliases": ["081434b0f", "4484165b0", "4d4b73cfd", "9e8fd9f7a", "bfeddcf09", "fe8c0a762"], "source_commits": ["fe8c0a762"], "source_entry_id": "17.11/changes/088", "db_id": "2d1814d3627bd7de23f302bac9690b77", "patch_ids": ["4f4dddcf40354c994e2b6668a43af20d"], "statement_hash": "e3bda298ded00b77261ba1c76b32c15895630f65da4a428ed88a0e425a4414cb", "relations": [{"rule": 2, "type": "equivalent", "target": "aa20c63216e98c98f035fa86491b5b30", "evidence": {"same_day": true, "patch_ids": ["4f4dddcf40354c994e2b6668a43af20d"], "statement_hash": "e3bda298ded00b77261ba1c76b32c15895630f65da4a428ed88a0e425a4414cb"}}, {"rule": 2, "type": "equivalent", "target": "d5ef1996d66a6c71b921d8881446c413", "evidence": {"same_day": true, "patch_ids": ["4f4dddcf40354c994e2b6668a43af20d"], "statement_hash": "e3bda298ded00b77261ba1c76b32c15895630f65da4a428ed88a0e425a4414cb"}}, {"rule": 2, "type": "equivalent", "target": "e7657a963bd66274d46d2b5a9e11a18a", "evidence": {"same_day": true, "patch_ids": ["4f4dddcf40354c994e2b6668a43af20d"], "statement_hash": "e3bda298ded00b77261ba1c76b32c15895630f65da4a428ed88a0e425a4414cb"}}, {"rule": 2, "type": "equivalent", "target": "f619d880f7a5f55846623a2af12abad1", "evidence": {"same_day": true, "patch_ids": ["4f4dddcf40354c994e2b6668a43af20d"], "statement_hash": "e3bda298ded00b77261ba1c76b32c15895630f65da4a428ed88a0e425a4414cb"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "aa20c63216e98c98f035fa86491b5b30", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "拒绝 ecpg 的 GET/SET DESCRIPTOR 语句中存在多个描述符首部项", "evidence": {"same_day": true, "patch_ids": ["4f4dddcf40354c994e2b6668a43af20d"], "statement_hash": "e3bda298ded00b77261ba1c76b32c15895630f65da4a428ed88a0e425a4414cb"}, "url": "/docs/compare/?release=18.6#18.6-f7ec4316771ce1eb", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "f619d880f7a5f55846623a2af12abad1", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "拒绝 ecpg 的 GET/SET DESCRIPTOR 语句中存在多个描述符首部项", "evidence": {"same_day": true, "patch_ids": ["4f4dddcf40354c994e2b6668a43af20d"], "statement_hash": "e3bda298ded00b77261ba1c76b32c15895630f65da4a428ed88a0e425a4414cb"}, "url": "/docs/compare/?release=16.15#16.15-0bc3bd0290f2c7ce", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "e7657a963bd66274d46d2b5a9e11a18a", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "拒绝 ecpg 的 GET/SET DESCRIPTOR 语句中存在多个描述符首部项", "evidence": {"same_day": true, "patch_ids": ["4f4dddcf40354c994e2b6668a43af20d"], "statement_hash": "e3bda298ded00b77261ba1c76b32c15895630f65da4a428ed88a0e425a4414cb"}, "url": "/docs/compare/?release=15.19#15.19-42a85b1c95cc8d74", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "d5ef1996d66a6c71b921d8881446c413", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "拒绝 ecpg 的 GET/SET DESCRIPTOR 语句中存在多个描述符首部项", "evidence": {"same_day": true, "patch_ids": ["4f4dddcf40354c994e2b6668a43af20d"], "statement_hash": "e3bda298ded00b77261ba1c76b32c15895630f65da4a428ed88a0e425a4414cb"}, "url": "/docs/compare/?release=14.24#14.24-fb2fbbf70338d662", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-410e9178511c3bd6", "cves": [], "html": "使 psql 扩展对齐输出格式中的行宽保持一致（Pavel Stehule）§
\n当表的数据行比记录标题行窄时，将数据行加宽到与标题行一致，从而避免输出不美观。
", "text": "使 psql 扩展对齐输出格式中的行宽保持一致（Pavel Stehule）§ 当表的数据行比记录标题行窄时，将数据行加宽到与标题行一致，从而避免输出不美观。", "title": "使 psql 扩展对齐输出格式中的行宽保持一致", "commits": ["efd885d05"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "515effb1fddcec198ad7058fdcddd30594e98dd02f21f44d09140b100b42e269", "section_path": ["变更"], "commit_groups": [["022ba5c61", "07a6c262b", "1edbe6695", "3d0d6741d", "a4ca91ea1", "efd885d05"]], "identity_text": "Make line widths match in psql's expanded aligned output format (Pavel Stehule) When the table's data rows are narrower than the record header lines, widen the data rows to match the headers, avoiding unsightly output.", "commit_aliases": ["022ba5c61", "07a6c262b", "1edbe6695", "3d0d6741d", "a4ca91ea1", "efd885d05"], "source_commits": ["efd885d05"], "source_entry_id": "17.11/changes/089", "db_id": "6a176afe78ae457a5f2e20281e68c1c8", "patch_ids": ["e1ed38dd6fb22dc6b3c388c344a54963"], "statement_hash": "bfb36185dbcab5e46aea9291f19969eb343ad3998992659ae2d4c88cea80e5d6", "relations": [{"rule": 2, "type": "equivalent", "target": "58d0bf8b8ffb214d0f6ab86e01e2ee4d", "evidence": {"same_day": true, "patch_ids": ["e1ed38dd6fb22dc6b3c388c344a54963"], "statement_hash": "bfb36185dbcab5e46aea9291f19969eb343ad3998992659ae2d4c88cea80e5d6"}}, {"rule": 2, "type": "equivalent", "target": "6d353eb0c8713cda0665ed6128c86dc7", "evidence": {"same_day": true, "patch_ids": ["e1ed38dd6fb22dc6b3c388c344a54963"], "statement_hash": "bfb36185dbcab5e46aea9291f19969eb343ad3998992659ae2d4c88cea80e5d6"}}, {"rule": 2, "type": "equivalent", "target": "73be9a684058fbdc9b8dd586127fd52a", "evidence": {"same_day": true, "patch_ids": ["e1ed38dd6fb22dc6b3c388c344a54963"], "statement_hash": "bfb36185dbcab5e46aea9291f19969eb343ad3998992659ae2d4c88cea80e5d6"}}, {"rule": 2, "type": "equivalent", "target": "8c98433b203fc9f697cb6dfef2f22a70", "evidence": {"same_day": true, "patch_ids": ["e1ed38dd6fb22dc6b3c388c344a54963"], "statement_hash": "bfb36185dbcab5e46aea9291f19969eb343ad3998992659ae2d4c88cea80e5d6"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "8c98433b203fc9f697cb6dfef2f22a70", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "使 psql 扩展对齐输出格式中的行宽保持一致", "evidence": {"same_day": true, "patch_ids": ["e1ed38dd6fb22dc6b3c388c344a54963"], "statement_hash": "bfb36185dbcab5e46aea9291f19969eb343ad3998992659ae2d4c88cea80e5d6"}, "url": "/docs/compare/?release=18.6#18.6-e95d42c0b0a749e2", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "73be9a684058fbdc9b8dd586127fd52a", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "使 psql 扩展对齐输出格式中的行宽保持一致", "evidence": {"same_day": true, "patch_ids": ["e1ed38dd6fb22dc6b3c388c344a54963"], "statement_hash": "bfb36185dbcab5e46aea9291f19969eb343ad3998992659ae2d4c88cea80e5d6"}, "url": "/docs/compare/?release=16.15#16.15-4ef439582c28e17a", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "58d0bf8b8ffb214d0f6ab86e01e2ee4d", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "使 psql 扩展对齐输出格式中的行宽保持一致", "evidence": {"same_day": true, "patch_ids": ["e1ed38dd6fb22dc6b3c388c344a54963"], "statement_hash": "bfb36185dbcab5e46aea9291f19969eb343ad3998992659ae2d4c88cea80e5d6"}, "url": "/docs/compare/?release=15.19#15.19-e6841047ca307274", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "6d353eb0c8713cda0665ed6128c86dc7", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "使 psql 扩展对齐输出格式中的行宽保持一致", "evidence": {"same_day": true, "patch_ids": ["e1ed38dd6fb22dc6b3c388c344a54963"], "statement_hash": "bfb36185dbcab5e46aea9291f19969eb343ad3998992659ae2d4c88cea80e5d6"}, "url": "/docs/compare/?release=14.24#14.24-44ddceba221fbb20", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-3336152e1ee6addb", "cves": [], "html": "修复 psql 在 \\l+ 中显示数据库大小时的权限检查（Christoph Berg）§
底层服务器函数允许具有 pg_read_all_stats 权限的用户查看所有数据库的大小，即使他们没有 CONNECT 权限。但 psql 不知道这一规定，除非用户具有 CONNECT 权限，否则不会调用该函数。
修复 psql 对 \\df 的 TAB 补全，使其也涵盖过程（Erik Wienhold）§
修复 pgbench 中的线程安全性缺陷（Fujii Masao）§
\n当 pgbench 使用多个线程和 --verbose-errors 选项运行时，不同线程可能尝试使用同一个缓冲区构造错误消息，导致日志输出损坏。
在 pg_combinebackup 中，防止源文件短于预期时出现无限循环（Peter Eisentraut）§
", "text": "在 pg_combinebackup 中，防止源文件短于预期时出现无限循环（Peter Eisentraut）§", "title": "在 pg_combinebackup 中，防止源文件短于预期时出现无限循环", "commits": ["090ce6934"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "9ead33d6b1ac2783ff5603c8d4568d4aaf5634f83335a387b613181f64ec1753", "section_path": ["变更"], "commit_groups": [["090ce6934", "994f770a0", "d36b72894"]], "identity_text": "In pg_combinebackup, prevent infinite loop if the source file is shorter than expected (Peter Eisentraut)", "commit_aliases": ["090ce6934", "994f770a0", "d36b72894"], "source_commits": ["090ce6934"], "source_entry_id": "17.11/changes/093", "db_id": "0de6b21246ca038db28e1d7e7a8c33a5", "patch_ids": ["0ba00e2ae3a5e83df9d4302186a61a05"], "statement_hash": "761861ecd47105adace712b27a89e3d3f71b32c7571c4e3a163697a77fad30a7", "relations": [{"rule": 2, "type": "equivalent", "target": "c27420aa9b3b249ab663f9b3b7619204", "evidence": {"same_day": true, "patch_ids": ["0ba00e2ae3a5e83df9d4302186a61a05"], "statement_hash": "761861ecd47105adace712b27a89e3d3f71b32c7571c4e3a163697a77fad30a7"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "c27420aa9b3b249ab663f9b3b7619204", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "在 pg_combinebackup 中，防止源文件短于预期时出现无限循环", "evidence": {"same_day": true, "patch_ids": ["0ba00e2ae3a5e83df9d4302186a61a05"], "statement_hash": "761861ecd47105adace712b27a89e3d3f71b32c7571c4e3a163697a77fad30a7"}, "url": "/docs/compare/?release=18.6#18.6-0a368cc2731c2f99", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-48e3e90ffcc9370a", "cves": [], "html": "修复 pg_createsubscriber 出错后对发布端对象的清理（Nisha Moond）§
\n当 pg_createsubscriber 在创建逻辑复制对象后失败时，它应删除在发布端创建的发布和复制槽。某些错误情形未能这样做。
", "text": "修复 pg_createsubscriber 出错后对发布端对象的清理（Nisha Moond）§ 当 pg_createsubscriber 在创建逻辑复制对象后失败时，它应删除在发布端创建的发布和复制槽。某些错误情形未能这样做。", "title": "修复 pg_createsubscriber 出错后对发布端对象的清理", "commits": ["c03784a21"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "a1d75d666e44a60984067015d9d6bcab7f9bc370d87822e0eb6afbafa4d22e93", "section_path": ["变更"], "commit_groups": [["12d000488", "196b4b5ae", "c03784a21"]], "identity_text": "Fix cleanup of publisher-side objects after errors in pg_createsubscriber (Nisha Moond) When pg_createsubscriber fails after creating logical replication objects, it should remove the publication and replication slot that it created on the publisher. Some error cases failed to do so.", "commit_aliases": ["12d000488", "196b4b5ae", "c03784a21"], "source_commits": ["c03784a21"], "source_entry_id": "17.11/changes/094", "db_id": "a5c36038d3fc8268a2ecbdc5f6d205fc", "patch_ids": ["294a0298249f9d0b66c918ec534fd2fa"], "statement_hash": "0b52e9786bbf3135e7724a4cd772716beafec6c0f4a214b285af87f0fd2ba380", "relations": [{"rule": 2, "type": "equivalent", "target": "b3b32d95005620db1dde6737c217ff79", "evidence": {"same_day": true, "patch_ids": ["294a0298249f9d0b66c918ec534fd2fa"], "statement_hash": "0b52e9786bbf3135e7724a4cd772716beafec6c0f4a214b285af87f0fd2ba380"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "b3b32d95005620db1dde6737c217ff79", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 pg_createsubscriber 出错后对发布端对象的清理", "evidence": {"same_day": true, "patch_ids": ["294a0298249f9d0b66c918ec534fd2fa"], "statement_hash": "0b52e9786bbf3135e7724a4cd772716beafec6c0f4a214b285af87f0fd2ba380"}, "url": "/docs/compare/?release=18.6#18.6-280913453570aa34", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}]}, {"id": "17.11-7a66a4f0ad5abf3d", "cves": [], "html": "对 pg_recvlogical 输出文件采用源集簇的文件组读权限（Fujii Masao）§
\n文档声称 pg_recvlogical 会这样做，但它从未实际启用组读权限。
", "text": "对 pg_recvlogical 输出文件采用源集簇的文件组读权限（Fujii Masao）§ 文档声称 pg_recvlogical 会这样做，但它从未实际启用组读权限。", "title": "对 pg_recvlogical 输出文件采用源集簇的文件组读权限", "commits": ["ddd12d1a5"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "2d362a8419c84544506326cf62a517eae4c23ecc6d7d232d922163964cfefbb4", "section_path": ["变更"], "commit_groups": [["263d1e6df", "5552a15a3", "89b4b3ae3", "9590dcfca", "ba9833a75", "ddd12d1a5"]], "identity_text": "Use the source cluster's group-read file permissions for pg_recvlogical output files (Fujii Masao) pg_recvlogical was documented to behave this way, but it never actually enabled group-read.", "commit_aliases": ["263d1e6df", "5552a15a3", "89b4b3ae3", "9590dcfca", "ba9833a75", "ddd12d1a5"], "source_commits": ["ddd12d1a5"], "source_entry_id": "17.11/changes/095", "db_id": "7c4fc2d9507cff650a6e11a00319e316", "patch_ids": ["afbffd5094352bc11bf18ec699c42866"], "statement_hash": "76c08921b60501e09bdf60cd197949c5372599c542dc2702bad076644bfb808e", "relations": [{"rule": 2, "type": "equivalent", "target": "46627f579bf31b5d6613ea2ead9a438c", "evidence": {"same_day": true, "patch_ids": ["afbffd5094352bc11bf18ec699c42866"], "statement_hash": "76c08921b60501e09bdf60cd197949c5372599c542dc2702bad076644bfb808e"}}, {"rule": 2, "type": "equivalent", "target": "5e9c0809074f8046eb23cf8c625f723d", "evidence": {"same_day": true, "patch_ids": ["afbffd5094352bc11bf18ec699c42866"], "statement_hash": "76c08921b60501e09bdf60cd197949c5372599c542dc2702bad076644bfb808e"}}, {"rule": 2, "type": "equivalent", "target": "739e2a6e3be37fb134a81099033e7b88", "evidence": {"same_day": true, "patch_ids": ["afbffd5094352bc11bf18ec699c42866"], "statement_hash": "76c08921b60501e09bdf60cd197949c5372599c542dc2702bad076644bfb808e"}}, {"rule": 2, "type": "equivalent", "target": "f4924985d224acc909a53983f158ebbe", "evidence": {"same_day": true, "patch_ids": ["afbffd5094352bc11bf18ec699c42866"], "statement_hash": "76c08921b60501e09bdf60cd197949c5372599c542dc2702bad076644bfb808e"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "739e2a6e3be37fb134a81099033e7b88", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "对 pg_recvlogical 输出文件采用源集簇的文件组读权限", "evidence": {"same_day": true, "patch_ids": ["afbffd5094352bc11bf18ec699c42866"], "statement_hash": "76c08921b60501e09bdf60cd197949c5372599c542dc2702bad076644bfb808e"}, "url": "/docs/compare/?release=18.6#18.6-ccc1d394ba38511a", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "f4924985d224acc909a53983f158ebbe", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "对 pg_recvlogical 输出文件采用源集簇的文件组读权限", "evidence": {"same_day": true, "patch_ids": ["afbffd5094352bc11bf18ec699c42866"], "statement_hash": "76c08921b60501e09bdf60cd197949c5372599c542dc2702bad076644bfb808e"}, "url": "/docs/compare/?release=16.15#16.15-f3298ba05de83c9a", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "46627f579bf31b5d6613ea2ead9a438c", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "对 pg_recvlogical 输出文件采用源集簇的文件组读权限", "evidence": {"same_day": true, "patch_ids": ["afbffd5094352bc11bf18ec699c42866"], "statement_hash": "76c08921b60501e09bdf60cd197949c5372599c542dc2702bad076644bfb808e"}, "url": "/docs/compare/?release=15.19#15.19-eb042822e75a511b", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "5e9c0809074f8046eb23cf8c625f723d", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "对 pg_recvlogical 输出文件采用源集簇的文件组读权限", "evidence": {"same_day": true, "patch_ids": ["afbffd5094352bc11bf18ec699c42866"], "statement_hash": "76c08921b60501e09bdf60cd197949c5372599c542dc2702bad076644bfb808e"}, "url": "/docs/compare/?release=14.24#14.24-af180ca6c48802b4", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-43173bad4eaa1b27", "cves": [], "html": "在 contrib/amcheck 中，正确处理短头部 varlena Datum（Andrey Borodin）§
此错误可能导致验证 B-树索引时执行多余工作，但似乎没有造成更严重的后果。
", "text": "在 contrib/amcheck 中，正确处理短头部 varlena Datum（Andrey Borodin）§ 此错误可能导致验证 B-树索引时执行多余工作，但似乎没有造成更严重的后果。", "title": "在 contrib/amcheck 中，正确处理短头部 varlena Datum", "commits": ["8abb8a155"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "e018f0b042d64dcca79a21b96b2ea3474917d26dcc23debba5a60a3f14ef8653", "section_path": ["变更"], "commit_groups": [["4284476c0", "897e79486", "8abb8a155", "af09b18cb", "c89a1ca01", "da1eff08a"]], "identity_text": "In contrib/amcheck, handle short-header varlena datums correctly (Andrey Borodin) This error could result in doing excess work while verifying a btree index, but seems not to have had any worse consequences.", "commit_aliases": ["4284476c0", "897e79486", "8abb8a155", "af09b18cb", "c89a1ca01", "da1eff08a"], "source_commits": ["8abb8a155"], "source_entry_id": "17.11/changes/096", "db_id": "3b8c851869278523310ddb5e0cf66c28", "patch_ids": ["d7fc6f8977003129b1104cd80d7d07dc"], "statement_hash": "e472f473c1b1497e339e1735040e13130df76e2534eb81a81dc2b51327126c5d", "relations": [{"rule": 2, "type": "equivalent", "target": "2d507c3ecfdc88b0a54eabbb1a06a7e0", "evidence": {"same_day": true, "patch_ids": ["d7fc6f8977003129b1104cd80d7d07dc"], "statement_hash": "e472f473c1b1497e339e1735040e13130df76e2534eb81a81dc2b51327126c5d"}}, {"rule": 2, "type": "equivalent", "target": "45cd63fac27296a03920e2ac709b0ed6", "evidence": {"same_day": true, "patch_ids": ["d7fc6f8977003129b1104cd80d7d07dc"], "statement_hash": "e472f473c1b1497e339e1735040e13130df76e2534eb81a81dc2b51327126c5d"}}, {"rule": 2, "type": "equivalent", "target": "cdde56de8d6ffe6162fb47b834f39528", "evidence": {"same_day": true, "patch_ids": ["d7fc6f8977003129b1104cd80d7d07dc"], "statement_hash": "e472f473c1b1497e339e1735040e13130df76e2534eb81a81dc2b51327126c5d"}}, {"rule": 2, "type": "equivalent", "target": "e3d3da7d18247e58916c107812921cf0", "evidence": {"same_day": true, "patch_ids": ["d7fc6f8977003129b1104cd80d7d07dc"], "statement_hash": "e472f473c1b1497e339e1735040e13130df76e2534eb81a81dc2b51327126c5d"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "2d507c3ecfdc88b0a54eabbb1a06a7e0", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "在 contrib/amcheck 中，正确处理短头部 varlena Datum", "evidence": {"same_day": true, "patch_ids": ["d7fc6f8977003129b1104cd80d7d07dc"], "statement_hash": "e472f473c1b1497e339e1735040e13130df76e2534eb81a81dc2b51327126c5d"}, "url": "/docs/compare/?release=18.6#18.6-83d0b073d364f75c", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "e3d3da7d18247e58916c107812921cf0", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "在 contrib/amcheck 中，正确处理短头部 varlena Datum", "evidence": {"same_day": true, "patch_ids": ["d7fc6f8977003129b1104cd80d7d07dc"], "statement_hash": "e472f473c1b1497e339e1735040e13130df76e2534eb81a81dc2b51327126c5d"}, "url": "/docs/compare/?release=16.15#16.15-22551bc799d71de7", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "45cd63fac27296a03920e2ac709b0ed6", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "在 contrib/amcheck 中，正确处理短头部 varlena Datum", "evidence": {"same_day": true, "patch_ids": ["d7fc6f8977003129b1104cd80d7d07dc"], "statement_hash": "e472f473c1b1497e339e1735040e13130df76e2534eb81a81dc2b51327126c5d"}, "url": "/docs/compare/?release=15.19#15.19-2872239e215fe909", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "cdde56de8d6ffe6162fb47b834f39528", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "在 contrib/amcheck 中，正确处理短头部 varlena Datum", "evidence": {"same_day": true, "patch_ids": ["d7fc6f8977003129b1104cd80d7d07dc"], "statement_hash": "e472f473c1b1497e339e1735040e13130df76e2534eb81a81dc2b51327126c5d"}, "url": "/docs/compare/?release=14.24#14.24-de8368e77c874cdf", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-62f2c81188559a68", "cves": [], "html": "在 contrib/btree_gist 中，修复 NaN 在 float4 和 float8 操作符类中的处理（Bill Kim、Tom Lane）§
比较以及 GiST penalty 和 distance 函数都没有考虑 NaN，因而在遇到该值时会给出错误结果。建议在安装此更新后对 float 列上的 btree_gist 索引重建索引，前提是这些列中可能存在 NaN 条目。
在 contrib/btree_gist 中，修复使用不等操作符的搜索（Ayush Tiwari）§
对于变长数据类型，扫描非叶索引页的代码使用了错误的比较函数，导致结果错误并可能引发崩溃。
", "text": "在 contrib/btree_gist 中，修复使用不等操作符的搜索（Ayush Tiwari）§ 对于变长数据类型，扫描非叶索引页的代码使用了错误的比较函数，导致结果错误并可能引发崩溃。", "title": "在 contrib/btree_gist 中，修复使用不等操作符的搜索", "commits": ["86992769e"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "91271ddbb65318f6138793fc1a67e677015bbc7b59a2ef372c7e97daa0898fb0", "section_path": ["变更"], "commit_groups": [["0663382c9", "12c519207", "286f9a3ce", "86992769e", "8f2a1b3d3", "eef644e57", "fc6649abe"]], "identity_text": "In contrib/btree_gist, fix searches using a not-equal operator (Ayush Tiwari) For variable-length data types, the code for scanning non-leaf index pages applied the wrong comparison function, leading to wrong results and potentially crashes.", "commit_aliases": ["0663382c9", "12c519207", "286f9a3ce", "86992769e", "8f2a1b3d3", "eef644e57", "fc6649abe"], "source_commits": ["86992769e"], "source_entry_id": "17.11/changes/098", "db_id": "c540681583edc5cf717591e5bf65da83", "patch_ids": ["515eccc8717dfd3bf829ad309ee292d4"], "statement_hash": "2be1ae243cd8ebc1e8e722c0adfd189a77f8b7ec2ce84c5f76afc7ac0990135a", "relations": [{"rule": 2, "type": "equivalent", "target": "635407feb25f134fd4b583a750d226fd", "evidence": {"same_day": true, "patch_ids": ["515eccc8717dfd3bf829ad309ee292d4"], "statement_hash": "2be1ae243cd8ebc1e8e722c0adfd189a77f8b7ec2ce84c5f76afc7ac0990135a"}}, {"rule": 2, "type": "equivalent", "target": "6a17d9b57b1644e479653b086d9a3d5b", "evidence": {"same_day": true, "patch_ids": ["515eccc8717dfd3bf829ad309ee292d4"], "statement_hash": "2be1ae243cd8ebc1e8e722c0adfd189a77f8b7ec2ce84c5f76afc7ac0990135a"}}, {"rule": 2, "type": "equivalent", "target": "72b13e01606442471a1d73d64267d5db", "evidence": {"same_day": true, "patch_ids": ["515eccc8717dfd3bf829ad309ee292d4"], "statement_hash": "2be1ae243cd8ebc1e8e722c0adfd189a77f8b7ec2ce84c5f76afc7ac0990135a"}}, {"rule": 2, "type": "equivalent", "target": "b8f3ffff9bd8249a29d2857d5a2613d1", "evidence": {"same_day": true, "patch_ids": ["515eccc8717dfd3bf829ad309ee292d4"], "statement_hash": "2be1ae243cd8ebc1e8e722c0adfd189a77f8b7ec2ce84c5f76afc7ac0990135a"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "6a17d9b57b1644e479653b086d9a3d5b", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "在 contrib/btree_gist 中，修复使用不等操作符的搜索", "evidence": {"same_day": true, "patch_ids": ["515eccc8717dfd3bf829ad309ee292d4"], "statement_hash": "2be1ae243cd8ebc1e8e722c0adfd189a77f8b7ec2ce84c5f76afc7ac0990135a"}, "url": "/docs/compare/?release=18.6#18.6-ba3d35f49ebe5363", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "72b13e01606442471a1d73d64267d5db", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "在 contrib/btree_gist 中，修复使用不等操作符的搜索", "evidence": {"same_day": true, "patch_ids": ["515eccc8717dfd3bf829ad309ee292d4"], "statement_hash": "2be1ae243cd8ebc1e8e722c0adfd189a77f8b7ec2ce84c5f76afc7ac0990135a"}, "url": "/docs/compare/?release=16.15#16.15-6fd7a5c21c3e59df", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "b8f3ffff9bd8249a29d2857d5a2613d1", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "在 contrib/btree_gist 中，修复使用不等操作符的搜索", "evidence": {"same_day": true, "patch_ids": ["515eccc8717dfd3bf829ad309ee292d4"], "statement_hash": "2be1ae243cd8ebc1e8e722c0adfd189a77f8b7ec2ce84c5f76afc7ac0990135a"}, "url": "/docs/compare/?release=15.19#15.19-400657eaecfa8eb8", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "635407feb25f134fd4b583a750d226fd", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "在 contrib/btree_gist 中，修复使用不等操作符的搜索", "evidence": {"same_day": true, "patch_ids": ["515eccc8717dfd3bf829ad309ee292d4"], "statement_hash": "2be1ae243cd8ebc1e8e722c0adfd189a77f8b7ec2ce84c5f76afc7ac0990135a"}, "url": "/docs/compare/?release=14.24#14.24-294f04d16131e8d5", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-f475bfd70799c254", "cves": [], "html": "修复以下模块中缺少防护的递归和循环：contrib/hstore_plperl、contrib/jsonb_plperl 和 contrib/jsonb_plpython（Aleksander Alekseev）§ §
防止处理深度嵌套的 jsonb 值时发生栈溢出，并允许中断尝试解引用 Perl 对象引用的环状链时造成的无限循环。
修复 contrib/intarray 中遗漏释放统计信息 catcache 条目的问题（Man Zeng）§
此疏漏会导致 “resource was not closed: cache pg_statistic” 之类的警告。
", "text": "修复 contrib/intarray 中遗漏释放统计信息 catcache 条目的问题（Man Zeng）§ 此疏漏会导致 “resource was not closed: cache pg_statistic” 之类的警告。", "title": "修复 contrib/intarray 中遗漏释放统计信息 catcache 条目的问题", "commits": ["94b57ab54"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "c95036cfe30472fc46c4b89de326c6c2235fa31027054ce35df66e53ea8aa32c", "section_path": ["变更"], "commit_groups": [["273be484a", "524cc0f63", "702a6d5f6", "94b57ab54", "a96b051a9", "e7544c518"]], "identity_text": "Fix missed release of statistics catcache entry in contrib/intarray (Man Zeng) This oversight led to warnings like resource was not closed: cache pg_statistic.", "commit_aliases": ["273be484a", "524cc0f63", "702a6d5f6", "94b57ab54", "a96b051a9", "e7544c518"], "source_commits": ["94b57ab54"], "source_entry_id": "17.11/changes/100", "db_id": "29b63a7300df9efc4d5ac1e96dc34cb7", "patch_ids": ["ed91737595bc2b3f155e28dcd1a2eea2"], "statement_hash": "f94e4dacb87f6c952276d56347322f0e3b34e2c00c7f4e555ef6c2806632dec3", "relations": [{"rule": 2, "type": "equivalent", "target": "2c29490e6377bc8f4bb49b5d5ca76323", "evidence": {"same_day": true, "patch_ids": ["ed91737595bc2b3f155e28dcd1a2eea2"], "statement_hash": "f94e4dacb87f6c952276d56347322f0e3b34e2c00c7f4e555ef6c2806632dec3"}}, {"rule": 2, "type": "equivalent", "target": "441b437853466f13724bc66579a3d9c5", "evidence": {"same_day": true, "patch_ids": ["ed91737595bc2b3f155e28dcd1a2eea2"], "statement_hash": "f94e4dacb87f6c952276d56347322f0e3b34e2c00c7f4e555ef6c2806632dec3"}}, {"rule": 2, "type": "equivalent", "target": "531f88cd6dd693227e011632166ae87b", "evidence": {"same_day": true, "patch_ids": ["ed91737595bc2b3f155e28dcd1a2eea2"], "statement_hash": "f94e4dacb87f6c952276d56347322f0e3b34e2c00c7f4e555ef6c2806632dec3"}}, {"rule": 2, "type": "equivalent", "target": "a4dfb26ea114f9668f1e953f8895f530", "evidence": {"same_day": true, "patch_ids": ["ed91737595bc2b3f155e28dcd1a2eea2"], "statement_hash": "f94e4dacb87f6c952276d56347322f0e3b34e2c00c7f4e555ef6c2806632dec3"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "531f88cd6dd693227e011632166ae87b", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 contrib/intarray 中遗漏释放统计信息 catcache 条目的问题", "evidence": {"same_day": true, "patch_ids": ["ed91737595bc2b3f155e28dcd1a2eea2"], "statement_hash": "f94e4dacb87f6c952276d56347322f0e3b34e2c00c7f4e555ef6c2806632dec3"}, "url": "/docs/compare/?release=18.6#18.6-69c78fae0c5ccd69", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "a4dfb26ea114f9668f1e953f8895f530", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 contrib/intarray 中遗漏释放统计信息 catcache 条目的问题", "evidence": {"same_day": true, "patch_ids": ["ed91737595bc2b3f155e28dcd1a2eea2"], "statement_hash": "f94e4dacb87f6c952276d56347322f0e3b34e2c00c7f4e555ef6c2806632dec3"}, "url": "/docs/compare/?release=16.15#16.15-1e6f6b698ab8119b", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "2c29490e6377bc8f4bb49b5d5ca76323", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 contrib/intarray 中遗漏释放统计信息 catcache 条目的问题", "evidence": {"same_day": true, "patch_ids": ["ed91737595bc2b3f155e28dcd1a2eea2"], "statement_hash": "f94e4dacb87f6c952276d56347322f0e3b34e2c00c7f4e555ef6c2806632dec3"}, "url": "/docs/compare/?release=15.19#15.19-ccb32043172a0059", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "441b437853466f13724bc66579a3d9c5", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 contrib/intarray 中遗漏释放统计信息 catcache 条目的问题", "evidence": {"same_day": true, "patch_ids": ["ed91737595bc2b3f155e28dcd1a2eea2"], "statement_hash": "f94e4dacb87f6c952276d56347322f0e3b34e2c00c7f4e555ef6c2806632dec3"}, "url": "/docs/compare/?release=14.24#14.24-88b2eacb476e6d44", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-390646d2843a7323", "cves": [], "html": "在 contrib/ltree 中，修复比较时的整数溢出（Ayush Tiwari）§
包含超过约 14,653 个标签的 ltree 值会因溢出而得到错误的比较结果。如果 B-树索引包含这类值，它很可能已经损坏，应在安装此更新后重建索引。
在 contrib/pgcrypto 中，避免使用 OSSLCipher 对象期间遇到错误后因双重释放而崩溃（Yuelin Wang）§
修复 contrib/pg_surgery 的 heap_force_kill 和 heap_force_freeze 函数中的数组越界写入（Michael Paquier）§
尝试更改偏移号等于 MaxHeapTuplesPerPage 的 TID 时，会在已分配数组的末尾之外写入一个字节，可能导致服务器崩溃。
", "text": "修复 contrib/pg_surgery 的 heap_force_kill 和 heap_force_freeze 函数中的数组越界写入（Michael Paquier）§ 尝试更改偏移号等于 MaxHeapTuplesPerPage 的 TID 时，会在已分配数组的末尾之外写入一个字节，可能导致服务器崩溃。", "title": "修复 contrib/pg_surgery 的 heap_force_kill 和 heap_force_freeze 函数中的数组越界写入", "commits": ["0bcf19c9e"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "cea29e239b3b153c740da1a6320be574b8750640475651f3b35057b947705653", "section_path": ["变更"], "commit_groups": [["0bcf19c9e", "193a4ded9", "1eda3eb07", "2b09f8a91", "51f63ba2b", "daf8bc7d4"]], "identity_text": "Fix array overrun in contrib/pg_surgery's heap_force_kill and heap_force_freeze functions (Michael Paquier) Attempting to change a TID whose offset number equals MaxHeapTuplesPerPage wrote one byte past the end of the allocated array, potentially crashing the server.", "commit_aliases": ["0bcf19c9e", "193a4ded9", "1eda3eb07", "2b09f8a91", "51f63ba2b", "daf8bc7d4"], "source_commits": ["0bcf19c9e"], "source_entry_id": "17.11/changes/103", "db_id": "bfda1df269b11b96600aa8d604c7a26a", "patch_ids": ["eb798217c4bf865d1840668bc6612f6d"], "statement_hash": "0c283cf21db62b067b9adc880d22c26404e9404758237c1adc833a4aa35981ae", "relations": [{"rule": 2, "type": "equivalent", "target": "34c6abdf99153564a44d057cfe4b6dac", "evidence": {"same_day": true, "patch_ids": ["eb798217c4bf865d1840668bc6612f6d"], "statement_hash": "0c283cf21db62b067b9adc880d22c26404e9404758237c1adc833a4aa35981ae"}}, {"rule": 2, "type": "equivalent", "target": "68b2c21176cad03670e2c5de5fd39431", "evidence": {"same_day": true, "patch_ids": ["eb798217c4bf865d1840668bc6612f6d"], "statement_hash": "0c283cf21db62b067b9adc880d22c26404e9404758237c1adc833a4aa35981ae"}}, {"rule": 2, "type": "equivalent", "target": "dd33ec95e198e9db76b741cb251151f9", "evidence": {"same_day": true, "patch_ids": ["eb798217c4bf865d1840668bc6612f6d"], "statement_hash": "0c283cf21db62b067b9adc880d22c26404e9404758237c1adc833a4aa35981ae"}}, {"rule": 2, "type": "equivalent", "target": "f14b53949f2fa5150ed94f6fdbc3af9e", "evidence": {"same_day": true, "patch_ids": ["eb798217c4bf865d1840668bc6612f6d"], "statement_hash": "0c283cf21db62b067b9adc880d22c26404e9404758237c1adc833a4aa35981ae"}}], "version": "17.11", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "34c6abdf99153564a44d057cfe4b6dac", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "修复 contrib/pg_surgery 的 heap_force_kill 和 heap_force_freeze 函数中的数组越界写入", "evidence": {"same_day": true, "patch_ids": ["eb798217c4bf865d1840668bc6612f6d"], "statement_hash": "0c283cf21db62b067b9adc880d22c26404e9404758237c1adc833a4aa35981ae"}, "url": "/docs/compare/?release=18.6#18.6-2f1813bf59f642ea", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "dd33ec95e198e9db76b741cb251151f9", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "修复 contrib/pg_surgery 的 heap_force_kill 和 heap_force_freeze 函数中的数组越界写入", "evidence": {"same_day": true, "patch_ids": ["eb798217c4bf865d1840668bc6612f6d"], "statement_hash": "0c283cf21db62b067b9adc880d22c26404e9404758237c1adc833a4aa35981ae"}, "url": "/docs/compare/?release=16.15#16.15-f726c19b6da9ae90", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "68b2c21176cad03670e2c5de5fd39431", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "修复 contrib/pg_surgery 的 heap_force_kill 和 heap_force_freeze 函数中的数组越界写入", "evidence": {"same_day": true, "patch_ids": ["eb798217c4bf865d1840668bc6612f6d"], "statement_hash": "0c283cf21db62b067b9adc880d22c26404e9404758237c1adc833a4aa35981ae"}, "url": "/docs/compare/?release=15.19#15.19-d4a24c821b2c9a40", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "f14b53949f2fa5150ed94f6fdbc3af9e", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "修复 contrib/pg_surgery 的 heap_force_kill 和 heap_force_freeze 函数中的数组越界写入", "evidence": {"same_day": true, "patch_ids": ["eb798217c4bf865d1840668bc6612f6d"], "statement_hash": "0c283cf21db62b067b9adc880d22c26404e9404758237c1adc833a4aa35981ae"}, "url": "/docs/compare/?release=14.24#14.24-5408ce883ba1bd1f", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-79d5c27db04cf496", "cves": [], "html": "在 contrib/pg_surgery 中，避免包含超过 64K 个元素的 TID 数组导致无限循环（Andrey Rachitskiy）§
避免 contrib/refint 的 check_foreign_key() 中解引用 NULL 指针（Ayush Tiwari）§
在更新时级联的情况下，被引用列的 null 值会导致崩溃。这是 CVE-2026-6637 修复中的一项疏漏，但修复之前的代码也并不真正正确。
", "text": "避免 contrib/refint 的 check_foreign_key() 中解引用 NULL 指针（Ayush Tiwari）§ 在更新时级联的情况下，被引用列的 null 值会导致崩溃。这是 CVE-2026-6637 修复中的一项疏漏，但修复之前的代码也并不真正正确。", "title": "避免 contrib/refint 的 check_foreign_key() 中解引用 NULL 指针", "commits": ["6b4de201e"], "section": "变更", "category": "security", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "6b28a24e84432ef095072dc5818a8589b49386ea01daa0ac2253d50d2ce216b6", "section_path": ["变更"], "commit_groups": [["1de0a711d", "611756948", "6b4de201e", "77b2d18e9", "eb93f10e2", "ed0c4d5af"]], "identity_text": "Avoid NULL-pointer dereference in contrib/refint's check_foreign_key() (Ayush Tiwari) In the on-update-cascade case, a null value of a referenced column led to a crash. This is an oversight in the fix for CVE-2026-6637, but the code that was there before that wasn't really right either.", "commit_aliases": ["1de0a711d", "611756948", "6b4de201e", "77b2d18e9", "eb93f10e2", "ed0c4d5af"], "source_commits": ["6b4de201e"], "source_entry_id": "17.11/changes/105", "db_id": "4a53f44037d5d1ea5b714eb8d91567ee", "patch_ids": ["47510ee01f1ec9c76e280af528461da2"], "statement_hash": "95ffa03f4949f1fbe65efb454898eb0f8b9358951a8110fcc4b0547102b37374", "relations": [{"rule": 2, "type": "equivalent", "target": "1404c503877f8a1f5c524fd84656cf87", "evidence": {"same_day": true, "patch_ids": ["47510ee01f1ec9c76e280af528461da2"], "statement_hash": "95ffa03f4949f1fbe65efb454898eb0f8b9358951a8110fcc4b0547102b37374"}}, {"rule": 2, "type": "equivalent", "target": "220e195253d94eac399969a628bda519", "evidence": {"same_day": true, "patch_ids": ["47510ee01f1ec9c76e280af528461da2"], "statement_hash": "95ffa03f4949f1fbe65efb454898eb0f8b9358951a8110fcc4b0547102b37374"}}, {"rule": 2, "type": "equivalent", "target": "98b367e0c42416fd78e2312f81ec66e2", "evidence": {"same_day": true, "patch_ids": ["47510ee01f1ec9c76e280af528461da2"], "statement_hash": "95ffa03f4949f1fbe65efb454898eb0f8b9358951a8110fcc4b0547102b37374"}}, {"rule": 2, "type": "equivalent", "target": "a4fcc13dcc4b7cf6a5470b40915f7de5", "evidence": {"same_day": true, "patch_ids": ["47510ee01f1ec9c76e280af528461da2"], "statement_hash": "95ffa03f4949f1fbe65efb454898eb0f8b9358951a8110fcc4b0547102b37374"}}], "version": "17.11", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "1404c503877f8a1f5c524fd84656cf87", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "避免 contrib/refint 的 check_foreign_key() 中解引用 NULL 指针", "evidence": {"same_day": true, "patch_ids": ["47510ee01f1ec9c76e280af528461da2"], "statement_hash": "95ffa03f4949f1fbe65efb454898eb0f8b9358951a8110fcc4b0547102b37374"}, "url": "/docs/compare/?release=18.6#18.6-8573bd52d03d8b3e", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "a4fcc13dcc4b7cf6a5470b40915f7de5", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "避免 contrib/refint 的 check_foreign_key() 中解引用 NULL 指针", "evidence": {"same_day": true, "patch_ids": ["47510ee01f1ec9c76e280af528461da2"], "statement_hash": "95ffa03f4949f1fbe65efb454898eb0f8b9358951a8110fcc4b0547102b37374"}, "url": "/docs/compare/?release=16.15#16.15-744702bd470fa361", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "220e195253d94eac399969a628bda519", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "避免 contrib/refint 的 check_foreign_key() 中解引用 NULL 指针", "evidence": {"same_day": true, "patch_ids": ["47510ee01f1ec9c76e280af528461da2"], "statement_hash": "95ffa03f4949f1fbe65efb454898eb0f8b9358951a8110fcc4b0547102b37374"}, "url": "/docs/compare/?release=15.19#15.19-e808c12e0db01138", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "98b367e0c42416fd78e2312f81ec66e2", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "避免 contrib/refint 的 check_foreign_key() 中解引用 NULL 指针", "evidence": {"same_day": true, "patch_ids": ["47510ee01f1ec9c76e280af528461da2"], "statement_hash": "95ffa03f4949f1fbe65efb454898eb0f8b9358951a8110fcc4b0547102b37374"}, "url": "/docs/compare/?release=14.24#14.24-1db62b2c5a9b5839", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-f8ebcb7cb6568363", "cves": [], "html": "修复 contrib/seg，使其正确打印带有 ~ 确定性指示符的线段（Ewan Young）§
由于拼写错误，seg_out() 不会打印附加在线段上界的 ~ 确定性指示符。更糟的是，如果下界带有 ~ 而上界没有指示符，上界会完全不被打印，从而错误地将该值转换为开区间。
修复 contrib/xml2 的 xpath_nodeset() 函数处理命名空间节点时的崩溃（Andrey Chernyy、Michael Paquier）§
支持使用 OpenSSL 4 构建 PostgreSQL（Daniel Gustafsson）§
", "text": "支持使用 OpenSSL 4 构建 PostgreSQL（Daniel Gustafsson）§", "title": "支持使用 OpenSSL 4 构建 PostgreSQL", "commits": ["8bcabfcce"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "47187bf9a81103a5a79cd9ba5b58aea9047d8f3c3068a1db75a7646c8abb4c25", "section_path": ["变更"], "commit_groups": [["086652c02", "27cf3b5af", "89d243d52", "8bcabfcce", "c7f70fa1b", "fb8befa7b"]], "identity_text": "Support building PostgreSQL with OpenSSL 4 (Daniel Gustafsson)", "commit_aliases": ["086652c02", "27cf3b5af", "89d243d52", "8bcabfcce", "c7f70fa1b", "fb8befa7b"], "source_commits": ["8bcabfcce"], "source_entry_id": "17.11/changes/108", "db_id": "3814ca74f63c29149528542a43ad21c5", "patch_ids": ["17c49f696c0a31900846c5a8c98eebd4"], "statement_hash": "c7b934d532c3b5d79d29d9130c3ab4f97028c3c1aa16422bb9101d84ad828729", "relations": [{"rule": 2, "type": "equivalent", "target": "10ee20e58ffd04daecf6e5f030162c87", "evidence": {"same_day": true, "patch_ids": ["17c49f696c0a31900846c5a8c98eebd4"], "statement_hash": "c7b934d532c3b5d79d29d9130c3ab4f97028c3c1aa16422bb9101d84ad828729"}}, {"rule": 2, "type": "equivalent", "target": "5205dd7058f572a69fe179e448446706", "evidence": {"same_day": true, "patch_ids": ["17c49f696c0a31900846c5a8c98eebd4"], "statement_hash": "c7b934d532c3b5d79d29d9130c3ab4f97028c3c1aa16422bb9101d84ad828729"}}, {"rule": 2, "type": "equivalent", "target": "5a9bafbcf49a80b12f21e542e3bae026", "evidence": {"same_day": true, "patch_ids": ["17c49f696c0a31900846c5a8c98eebd4"], "statement_hash": "c7b934d532c3b5d79d29d9130c3ab4f97028c3c1aa16422bb9101d84ad828729"}}, {"rule": 2, "type": "equivalent", "target": "c3287f3d7329f9fd4fb1dead8c819569", "evidence": {"same_day": true, "patch_ids": ["17c49f696c0a31900846c5a8c98eebd4"], "statement_hash": "c7b934d532c3b5d79d29d9130c3ab4f97028c3c1aa16422bb9101d84ad828729"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "c3287f3d7329f9fd4fb1dead8c819569", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "支持使用 OpenSSL 4 构建 PostgreSQL", "evidence": {"same_day": true, "patch_ids": ["17c49f696c0a31900846c5a8c98eebd4"], "statement_hash": "c7b934d532c3b5d79d29d9130c3ab4f97028c3c1aa16422bb9101d84ad828729"}, "url": "/docs/compare/?release=18.6#18.6-48c6d3c86320b73f", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "5205dd7058f572a69fe179e448446706", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "支持使用 OpenSSL 4 构建 PostgreSQL", "evidence": {"same_day": true, "patch_ids": ["17c49f696c0a31900846c5a8c98eebd4"], "statement_hash": "c7b934d532c3b5d79d29d9130c3ab4f97028c3c1aa16422bb9101d84ad828729"}, "url": "/docs/compare/?release=16.15#16.15-1b5271a8f18e77e3", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "5a9bafbcf49a80b12f21e542e3bae026", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "支持使用 OpenSSL 4 构建 PostgreSQL", "evidence": {"same_day": true, "patch_ids": ["17c49f696c0a31900846c5a8c98eebd4"], "statement_hash": "c7b934d532c3b5d79d29d9130c3ab4f97028c3c1aa16422bb9101d84ad828729"}, "url": "/docs/compare/?release=15.19#15.19-50448fe82729f9d3", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "10ee20e58ffd04daecf6e5f030162c87", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "支持使用 OpenSSL 4 构建 PostgreSQL", "evidence": {"same_day": true, "patch_ids": ["17c49f696c0a31900846c5a8c98eebd4"], "statement_hash": "c7b934d532c3b5d79d29d9130c3ab4f97028c3c1aa16422bb9101d84ad828729"}, "url": "/docs/compare/?release=14.24#14.24-192a685e063a0595", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}, {"id": "17.11-8abc326e9afc0d23", "cves": [], "html": "将时区数据文件更新到 tzdata 2026c 发布版本（Tom Lane）§
\nAlberta（America/Edmonton）将从 2026 年 11 月开始全年采用 UTC-06（实际上就是永久 DST）。本次发布假定其 TZ 缩写从那时起为 CST。这看起来可能会改变，但尚不清楚会使用什么新缩写。
Morocco（Africa/Casablanca）将从 2026-09-20 起改为永久 UTC+00，不再进行夏令时转换。
", "text": "将时区数据文件更新到 tzdata 2026c 发布版本（Tom Lane）§ Alberta（America/Edmonton）将从 2026 年 11 月开始全年采用 UTC-06（实际上就是永久 DST）。本次发布假定其 TZ 缩写从那时起为 CST。这看起来可能会改变，但尚不清楚会使用什么新缩写。 Morocco（Africa/Casablanca）将从 2026-09-20 起改为永久 UTC+00，不再进行夏令时转换。", "title": "将时区数据文件更新到 tzdata 2026c 发布版本", "commits": ["669438aed"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.11/#RELEASE-17-11-CHANGES", "source_hash": "1224d33fa7b58251d960edb8bc65ddd58545e891c837e73fedac63d505161fa1", "section_path": ["变更"], "commit_groups": [["3c16aa293", "5f67124fa", "669438aed", "6ca405938", "796c275a0", "812cc1a73", "af7be5672"]], "identity_text": "Update time zone data files to tzdata release 2026c (Tom Lane) Alberta (America/Edmonton) will be on year-round UTC-06 (effectively, permanent DST) beginning in November 2026. This release assumes that their TZ abbreviation will be CST from that time forward. That seems likely to change, but it's unclear what new abbreviation will be used. Morocco (Africa/Casablanca) will move to permanent UTC+00, without daylight saving time transitions, on 2026-09-20.", "commit_aliases": ["3c16aa293", "5f67124fa", "669438aed", "6ca405938", "796c275a0", "812cc1a73", "af7be5672"], "source_commits": ["669438aed"], "source_entry_id": "17.11/changes/109", "db_id": "6c00ccb389c691ec829366a2dd6d8fd7", "patch_ids": ["b4e9971495e6df3bcbb5661de594cfb5"], "statement_hash": "db30f9e9494e81ad745b38acebea395f96ce2c6e6fd0e722f568326a3b8491a7", "relations": [{"rule": 2, "type": "equivalent", "target": "163da88262eec7e167bed3e56a48dcc3", "evidence": {"same_day": true, "patch_ids": ["b4e9971495e6df3bcbb5661de594cfb5"], "statement_hash": "db30f9e9494e81ad745b38acebea395f96ce2c6e6fd0e722f568326a3b8491a7"}}, {"rule": 2, "type": "equivalent", "target": "5d6e219dd117842cc9b25b660af47952", "evidence": {"same_day": true, "patch_ids": ["b4e9971495e6df3bcbb5661de594cfb5"], "statement_hash": "db30f9e9494e81ad745b38acebea395f96ce2c6e6fd0e722f568326a3b8491a7"}}, {"rule": 2, "type": "equivalent", "target": "ae8d1b295c148a9982765709cf1583a9", "evidence": {"same_day": true, "patch_ids": ["b4e9971495e6df3bcbb5661de594cfb5"], "statement_hash": "db30f9e9494e81ad745b38acebea395f96ce2c6e6fd0e722f568326a3b8491a7"}}, {"rule": 2, "type": "equivalent", "target": "afb53916a223205ed20435542f0bacc1", "evidence": {"same_day": true, "patch_ids": ["b4e9971495e6df3bcbb5661de594cfb5"], "statement_hash": "db30f9e9494e81ad745b38acebea395f96ce2c6e6fd0e722f568326a3b8491a7"}}], "version": "17.11", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "5d6e219dd117842cc9b25b660af47952", "kind": "equivalent", "version": "18.6", "label": "18.6", "title": "将时区数据文件更新到 tzdata 2026c 发布版本", "evidence": {"same_day": true, "patch_ids": ["b4e9971495e6df3bcbb5661de594cfb5"], "statement_hash": "db30f9e9494e81ad745b38acebea395f96ce2c6e6fd0e722f568326a3b8491a7"}, "url": "/docs/compare/?release=18.6#18.6-d9abf44820fbecc5", "source_url": "/docs/release/18.6/#RELEASE-18-6-CHANGES"}, {"db_id": "ae8d1b295c148a9982765709cf1583a9", "kind": "equivalent", "version": "16.15", "label": "16.15", "title": "将时区数据文件更新到 tzdata 2026c 发布版本", "evidence": {"same_day": true, "patch_ids": ["b4e9971495e6df3bcbb5661de594cfb5"], "statement_hash": "db30f9e9494e81ad745b38acebea395f96ce2c6e6fd0e722f568326a3b8491a7"}, "url": "/docs/compare/?release=16.15#16.15-d220a135cd5ed833", "source_url": "/docs/release/16.15/#RELEASE-16-15-CHANGES"}, {"db_id": "163da88262eec7e167bed3e56a48dcc3", "kind": "equivalent", "version": "15.19", "label": "15.19", "title": "将时区数据文件更新到 tzdata 2026c 发布版本", "evidence": {"same_day": true, "patch_ids": ["b4e9971495e6df3bcbb5661de594cfb5"], "statement_hash": "db30f9e9494e81ad745b38acebea395f96ce2c6e6fd0e722f568326a3b8491a7"}, "url": "/docs/compare/?release=15.19#15.19-661a397eafb52141", "source_url": "/docs/release/15.19/#RELEASE-15-19-CHANGES"}, {"db_id": "afb53916a223205ed20435542f0bacc1", "kind": "equivalent", "version": "14.24", "label": "14.24", "title": "将时区数据文件更新到 tzdata 2026c 发布版本", "evidence": {"same_day": true, "patch_ids": ["b4e9971495e6df3bcbb5661de594cfb5"], "statement_hash": "db30f9e9494e81ad745b38acebea395f96ce2c6e6fd0e722f568326a3b8491a7"}, "url": "/docs/compare/?release=14.24#14.24-14e27d4d0379635b", "source_url": "/docs/release/14.24/#RELEASE-14-24-CHANGES"}]}]}, {"date": "2026-05-14", "build": "17.10", "major": "17", "minor": 10, "manual": "17", "status": "stable", "doc_git": "", "version": "17.10", "eol_date": "2029-11-08", "date_text": "2026-05-14", "supported": true, "manual_url": "/docs/17/release-17-10.html", "source_url": "/docs/release/17.10/", "entry_count": 58, "placeholder": false, "content_hash": "09a88585edea345fa81699fb56f19704ab17f15b89adab467c5b97513c89d510", "manual_build": "17.11", "source_as_of": "", "changes_count": 58, "doc_loaded_at": "2026-09-26T02:56:35.922301", "migration_html": "对于运行 17.X 的用户，无需执行转储/恢复。
\n但是，如果你从早于 17.6 的版本升级，请参见第 E.6 节。
", "compatibility_count": 0, "label": "17.10", "status_label": "受支持版本", "eol": "2029-11-08", "age_days": 139, "support_days": 1135, "entries": [{"id": "17.10-11e46f0b0085f2d6", "cves": ["CVE-2026-6479"], "html": "防止处理启动包时发生无界递归（Michael Paquier）§ §
\n恶意客户端可以通过无限交替发送被拒绝的 SSL 和 GSS 加密请求，使已连接的后端崩溃。
\nPostgreSQL 项目感谢 Calif.io（与 Claude 和 Anthropic Research 协作）报告此问题。（CVE-2026-6479）
", "text": "防止处理启动包时发生无界递归（Michael Paquier）§ § 恶意客户端可以通过无限交替发送被拒绝的 SSL 和 GSS 加密请求，使已连接的后端崩溃。 PostgreSQL 项目感谢 Calif.io（与 Claude 和 Anthropic Research 协作）报告此问题。（CVE-2026-6479）", "title": "防止处理启动包时发生无界递归", "commits": ["32a4ce55c", "6dffaeb8e"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "1ada86bdd425dd2259fe80bbe1aeb47ff43298d44b1fe94b2fe87651e78d0424", "section_path": ["变更"], "commit_groups": [["14a4a7040", "16fda4df6", "6dffaeb8e", "c2e6ef863"], ["32a4ce55c", "3b4e66739", "3fb66d302", "66cf26b9e", "b63f25bdd", "f7a191f53"]], "identity_text": "Prevent unbounded recursion while processing startup packets (Michael Paquier) A malicious client could crash the connected backend by alternating rejected SSL and GSS encryption requests indefinitely. The PostgreSQL Project thanks Calif.io (in collaboration with Claude and Anthropic Research) for reporting this problem. (CVE-2026-6479)", "commit_aliases": ["14a4a7040", "16fda4df6", "32a4ce55c", "3b4e66739", "3fb66d302", "66cf26b9e", "6dffaeb8e", "b63f25bdd", "c2e6ef863", "f7a191f53"], "source_commits": ["32a4ce55c", "6dffaeb8e"], "source_entry_id": "17.10/changes/001", "db_id": "91cb80c58929d3256c8543b647d98328", "patch_ids": ["4309351724f2df44d6eb12d700f03a90", "fce882e6fdda4deccb44245cc5966b20"], "statement_hash": "879026f1f07a4d172337b9e457cc300e4ed2d558396bcc627770e4ef108f69d4", "relations": [{"rule": 2, "type": "equivalent", "target": "1ca6ff4a849ed2960fad43a403e2b932", "evidence": {"same_day": true, "patch_ids": ["4309351724f2df44d6eb12d700f03a90", "fce882e6fdda4deccb44245cc5966b20"], "statement_hash": "879026f1f07a4d172337b9e457cc300e4ed2d558396bcc627770e4ef108f69d4"}}, {"rule": 2, "type": "equivalent", "target": "3d1e0d9f6f6214fb84bb4b9d4f9402aa", "evidence": {"same_day": true, "patch_ids": ["4309351724f2df44d6eb12d700f03a90", "fce882e6fdda4deccb44245cc5966b20"], "statement_hash": "879026f1f07a4d172337b9e457cc300e4ed2d558396bcc627770e4ef108f69d4"}}, {"rule": 2, "type": "equivalent", "target": "473b135d9b59dfa88e1611d1141570ee", "evidence": {"same_day": true, "patch_ids": ["4309351724f2df44d6eb12d700f03a90", "fce882e6fdda4deccb44245cc5966b20"], "statement_hash": "879026f1f07a4d172337b9e457cc300e4ed2d558396bcc627770e4ef108f69d4"}}, {"rule": 2, "type": "equivalent", "target": "e49a23129f6590195a74fcbcc51115f9", "evidence": {"same_day": true, "patch_ids": ["4309351724f2df44d6eb12d700f03a90", "fce882e6fdda4deccb44245cc5966b20"], "statement_hash": "879026f1f07a4d172337b9e457cc300e4ed2d558396bcc627770e4ef108f69d4"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "1ca6ff4a849ed2960fad43a403e2b932", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防止处理启动包时发生无界递归", "evidence": {"same_day": true, "patch_ids": ["4309351724f2df44d6eb12d700f03a90", "fce882e6fdda4deccb44245cc5966b20"], "statement_hash": "879026f1f07a4d172337b9e457cc300e4ed2d558396bcc627770e4ef108f69d4"}, "url": "/docs/compare/?release=18.4#18.4-63ab78ae660e7424", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "473b135d9b59dfa88e1611d1141570ee", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "防止处理启动包时发生无界递归", "evidence": {"same_day": true, "patch_ids": ["4309351724f2df44d6eb12d700f03a90", "fce882e6fdda4deccb44245cc5966b20"], "statement_hash": "879026f1f07a4d172337b9e457cc300e4ed2d558396bcc627770e4ef108f69d4"}, "url": "/docs/compare/?release=16.14#16.14-f224cad17d1e5128", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "e49a23129f6590195a74fcbcc51115f9", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "防止处理启动包时发生无界递归", "evidence": {"same_day": true, "patch_ids": ["4309351724f2df44d6eb12d700f03a90", "fce882e6fdda4deccb44245cc5966b20"], "statement_hash": "879026f1f07a4d172337b9e457cc300e4ed2d558396bcc627770e4ef108f69d4"}, "url": "/docs/compare/?release=15.18#15.18-6e37155a4c84008d", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "3d1e0d9f6f6214fb84bb4b9d4f9402aa", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "防止处理启动包时发生无界递归", "evidence": {"same_day": true, "patch_ids": ["4309351724f2df44d6eb12d700f03a90", "fce882e6fdda4deccb44245cc5966b20"], "statement_hash": "879026f1f07a4d172337b9e457cc300e4ed2d558396bcc627770e4ef108f69d4"}, "url": "/docs/compare/?release=14.23#14.23-c632f730b154b207", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-a0bf50b47f7c6ba2", "cves": ["CVE-2026-6473"], "html": "修复内存分配计算中的多处整数溢出问题（Tom Lane，Nathan Bossart，Heikki Linnakangas）§ § § § § § § § § §
\n多处代码在计算需要分配多少内存时，未充分注意整数溢出的可能性。溢出会导致分配过小的缓冲区，调用者随后会写过该缓冲区的末尾。这至少会触发服务器崩溃，并且很可能可被利用来执行任意代码。在许多但绝非所有情况下，这种风险只存在于 32 位构建中。
\nPostgreSQL 项目感谢 Xint Code、Bruce Dang、Sven Klemm 和 Pavel Kohout 报告这些问题。（CVE-2026-6473）
", "text": "修复内存分配计算中的多处整数溢出问题（Tom Lane，Nathan Bossart，Heikki Linnakangas）§ § § § § § § § § § 多处代码在计算需要分配多少内存时，未充分注意整数溢出的可能性。溢出会导致分配过小的缓冲区，调用者随后会写过该缓冲区的末尾。这至少会触发服务器崩溃，并且很可能可被利用来执行任意代码。在许多但绝非所有情况下，这种风险只存在于 32 位构建中。 PostgreSQL 项目感谢 Xint Code、Bruce Dang、Sven Klemm 和 Pavel Kohout 报告这些问题。（CVE-2026-6473）", "title": "修复内存分配计算中的多处整数溢出问题", "commits": ["00e243e67", "01b5ef7df", "26dd3cac2", "3c41f5534", "87357a606", "8e909812d", "e3a2bea41", "e5babf754", "ebcfa7867", "fe2720c45"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "d3d25a36426ef2cf407b32f949d6d22a9bfa12410999b2412e4136b5f1057a25", "section_path": ["变更"], "commit_groups": [["00e243e67", "37842f3dc", "924b3e943", "c7fb9f765", "d75b1dc96"], ["01b5ef7df", "01e568b8c", "4032c9d98", "aff71f87b", "c55cea529", "e31ef0720"], ["066b7b144", "3e0eba196", "8d1489d50", "b11c3eadf", "ebcfa7867", "f20b84081"], ["0dc1fdc75", "39bc8f2ca", "7fdb0907e", "a4f089c79", "e3a2bea41", "f3cee4dc4"], ["137013f60", "32c525eb6", "55328e3a9", "6a985e71e", "87357a606", "986753361"], ["26dd3cac2", "b2869ebc4", "bcfd848e7", "c25973124", "dd8af778d", "fb0bc321d"], ["3c41f5534", "67dd6243d", "6d68fcb28", "8e81995de", "e24fb3247", "e49e9590d"], ["3fbec9e50", "8e909812d", "c3f7dde39", "c9447b8bd", "dc6c85ff4", "e42598a41"], ["46593aea0", "61a9b4b6e", "bfc5cea76", "cfb610eaa", "e1c30458a", "fe2720c45"], ["47dae5e74", "6a423a256", "d106295b6", "e5babf754"]], "identity_text": "Fix assorted integer overflows in memory-allocation calculations (Tom Lane, Nathan Bossart, Heikki Linnakangas) Various places were incautious about the possibility of integer overflow in calculations of how much memory to allocate. Overflow would lead to allocating a too-small buffer which the caller would then write past the end of. This would at least trigger server crashes, and probably could be exploited for arbitrary code execution. In many but by no means all cases, the hazard exists only in 32-bit builds. The PostgreSQL Project thanks Xint Code, Bruce Dang, Sven Klemm, and Pavel Kohout for reporting these problems. 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"5ee943f19c8b14a26d6f6e850b4c2e4a", "67e33d81b6d11e90e4032802100b1f9a", "722cd5796fd759e519e27c59ed0f5bc7", "8b4c7be6720ec411561a3216285eb5c2", "9be6f17ccc7861ac218a3159257353f5", "9c6a62a34c14fe610b5925191c0d43bf", "ac6798245b6fb47cbaf616c47755bec8"], "statement_hash": "e134dbaa858fe12a3a5fc6391ac874300d57d4269c0f25b416434cdc943690d8"}, "url": "/docs/compare/?release=16.14#16.14-effcbd2d1a71fba3", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "295b1d4dab2d6e770a4f53cf19a7aaa0", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复内存分配计算中的多处整数溢出问题", "evidence": {"same_day": true, "patch_ids": ["0ef31353c016842f07a477e36bffc11a", "18b75605d90ace7a2cf8047352074614", "522ba1e579ed17edbf8f9a554cef9734", "5ee943f19c8b14a26d6f6e850b4c2e4a", "67e33d81b6d11e90e4032802100b1f9a", "722cd5796fd759e519e27c59ed0f5bc7", "8b4c7be6720ec411561a3216285eb5c2", "9be6f17ccc7861ac218a3159257353f5", "9c6a62a34c14fe610b5925191c0d43bf", "ac6798245b6fb47cbaf616c47755bec8"], "statement_hash": "e134dbaa858fe12a3a5fc6391ac874300d57d4269c0f25b416434cdc943690d8"}, "url": "/docs/compare/?release=15.18#15.18-77623f915f7592d9", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "2566881ea25d8a61c2245b4b04c49f1a", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "修复内存分配计算中的多处整数溢出问题", "evidence": {"same_day": true, "patch_ids": ["0ef31353c016842f07a477e36bffc11a", "18b75605d90ace7a2cf8047352074614", "522ba1e579ed17edbf8f9a554cef9734", "5ee943f19c8b14a26d6f6e850b4c2e4a", "67e33d81b6d11e90e4032802100b1f9a", "722cd5796fd759e519e27c59ed0f5bc7", "8b4c7be6720ec411561a3216285eb5c2", "9be6f17ccc7861ac218a3159257353f5", "9c6a62a34c14fe610b5925191c0d43bf", "ac6798245b6fb47cbaf616c47755bec8"], "statement_hash": "e134dbaa858fe12a3a5fc6391ac874300d57d4269c0f25b416434cdc943690d8"}, "url": "/docs/compare/?release=14.23#14.23-1cae472cd8aafd7d", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-927543ba721f9720", "cves": ["CVE-2026-6476"], "html": "在 pg_createsubscriber 中正确为订阅名称加引号（Nathan Bossart）§
\n给定的订阅名称未经加引号就被插入到 SQL 命令中，因此在订阅名称来自不可信来源的（也许不太可能的）情况下，可能实现 SQL 注入。
\nPostgreSQL 项目感谢 Yu Kunpeng 报告此问题。（CVE-2026-6476）
", "text": "在 pg_createsubscriber 中正确为订阅名称加引号（Nathan Bossart）§ 给定的订阅名称未经加引号就被插入到 SQL 命令中，因此在订阅名称来自不可信来源的（也许不太可能的）情况下，可能实现 SQL 注入。 PostgreSQL 项目感谢 Yu Kunpeng 报告此问题。（CVE-2026-6476）", "title": "在 pg_createsubscriber 中正确为订阅名称加引号", "commits": ["d7de7fa84"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "4807d6f79bb16ec55a0c1ebb8826b5ad865ff50428dc408b9d0b6a5a1f5bbbb3", "section_path": ["变更"], "commit_groups": [["c2e44c370", "d389415ff", "d7de7fa84"]], "identity_text": "Properly quote subscription names in pg_createsubscriber (Nathan Bossart) The given subscription name was inserted into SQL commands without quoting, so that SQL injection could be achieved in the (perhaps unlikely) case that the subscription name comes from an untrusted source. The PostgreSQL Project thanks Yu Kunpeng for reporting this problem. (CVE-2026-6476)", "commit_aliases": ["c2e44c370", "d389415ff", "d7de7fa84"], "source_commits": ["d7de7fa84"], "source_entry_id": "17.10/changes/003", "db_id": "c1016302d421112d19c9bbb963270941", "patch_ids": ["e720680b86f42b77dffa98182668476a"], "statement_hash": "ab8d616fe93986f065230107e451ba6882c134da9ddc1a51188a772cce10dc27", "relations": [{"rule": 2, "type": "equivalent", "target": "eda2bad4600ad30b4d662076df8c2604", "evidence": {"same_day": true, "patch_ids": ["e720680b86f42b77dffa98182668476a"], "statement_hash": "ab8d616fe93986f065230107e451ba6882c134da9ddc1a51188a772cce10dc27"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "eda2bad4600ad30b4d662076df8c2604", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "在 pg_createsubscriber 中正确为订阅名称加引号", "evidence": {"same_day": true, "patch_ids": ["e720680b86f42b77dffa98182668476a"], "statement_hash": "ab8d616fe93986f065230107e451ba6882c134da9ddc1a51188a772cce10dc27"}, "url": "/docs/compare/?release=18.4#18.4-5bdcbd2e82271018", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}]}, {"id": "17.10-fdd0ba1867f4cdc1", "cves": ["CVE-2026-6638"], "html": "在逻辑复制源检查中正确引用对象名称（Pavel Kohout）§
\nALTER SUBSCRIPTION ... REFRESH PUBLICATION 将模式名和关系名未经引用就插入到 SQL 命令中，从而允许在发布者上执行任意 SQL。
PostgreSQL 项目感谢 Pavel Kohout 报告此问题。（CVE-2026-6638）
", "text": "在逻辑复制源检查中正确引用对象名称（Pavel Kohout）§ ALTER SUBSCRIPTION ... REFRESH PUBLICATION 将模式名和关系名未经引用就插入到 SQL 命令中，从而允许在发布者上执行任意 SQL。 PostgreSQL 项目感谢 Pavel Kohout 报告此问题。（CVE-2026-6638）", "title": "在逻辑复制源检查中正确引用对象名称", "commits": ["f0f59b658"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "2e13f748ebe4ad7152ef3046f43d32a61acbc156151d02fd824bb9e886e85d59", "section_path": ["变更"], "commit_groups": [["248a433cd", "46b4f5c11", "cb35d7306", "f0f59b658"]], "identity_text": "Properly quote object names in logical replication origin checks (Pavel Kohout) ALTER SUBSCRIPTION ... REFRESH PUBLICATION interpolated schema and relation names into SQL commands without quoting them, allowing execution of arbitrary SQL on the publisher. The PostgreSQL Project thanks Pavel Kohout for reporting this problem. (CVE-2026-6638)", "commit_aliases": ["248a433cd", "46b4f5c11", "cb35d7306", "f0f59b658"], "source_commits": ["f0f59b658"], "source_entry_id": "17.10/changes/004", "db_id": "6b9ad77c2d8c8cf7ed6c43c56746b015", "patch_ids": ["a9b5d94f4021c4259f919029b9984225"], "statement_hash": "13a92db4a9747d0e4148764ace1c5b2427bc1582543dea88fe555dd3a4b24743", "relations": [{"rule": 2, "type": "equivalent", "target": "160fa6992f90d49b5edf0769aa32c248", "evidence": {"same_day": true, "patch_ids": ["a9b5d94f4021c4259f919029b9984225"], "statement_hash": "13a92db4a9747d0e4148764ace1c5b2427bc1582543dea88fe555dd3a4b24743"}}, {"rule": 2, "type": "equivalent", "target": "f75aecc1c0c865955094a916f7c78463", "evidence": {"same_day": true, "patch_ids": ["a9b5d94f4021c4259f919029b9984225"], "statement_hash": "13a92db4a9747d0e4148764ace1c5b2427bc1582543dea88fe555dd3a4b24743"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "160fa6992f90d49b5edf0769aa32c248", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "在逻辑复制源检查中正确引用对象名称", "evidence": {"same_day": true, "patch_ids": ["a9b5d94f4021c4259f919029b9984225"], "statement_hash": "13a92db4a9747d0e4148764ace1c5b2427bc1582543dea88fe555dd3a4b24743"}, "url": "/docs/compare/?release=18.4#18.4-a09de455386cd30a", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "f75aecc1c0c865955094a916f7c78463", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "在逻辑复制源检查中正确引用对象名称", "evidence": {"same_day": true, "patch_ids": ["a9b5d94f4021c4259f919029b9984225"], "statement_hash": "13a92db4a9747d0e4148764ace1c5b2427bc1582543dea88fe555dd3a4b24743"}, "url": "/docs/compare/?release=16.14#16.14-de346e2ac011900c", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}]}, {"id": "17.10-b66b265350df29d2", "cves": ["CVE-2026-6473"], "html": "拒绝 ts_headline() 中过长的选项（Michael Paquier）§
StartSel、StopSel 和 FragmentDelimiter 字符串的长度不得超过 32Kb，但此前没有对此进行检查。过长的值通常会使服务器崩溃。
PostgreSQL 项目感谢 Xint Code 报告此问题。（CVE-2026-6473）
", "text": "拒绝 ts_headline() 中过长的选项（Michael Paquier）§ StartSel、StopSel 和 FragmentDelimiter 字符串的长度不得超过 32Kb，但此前没有对此进行检查。过长的值通常会使服务器崩溃。 PostgreSQL 项目感谢 Xint Code 报告此问题。（CVE-2026-6473）", "title": "拒绝 ts_headline() 中过长的选项", "commits": ["3ed3dbbf4"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "7cf11858483a91e864077bd53d40c4e8c0400f42e14901b411f7dcfe3eda34e8", "section_path": ["变更"], "commit_groups": [["2d267ffc4", "3ed3dbbf4", "5919e0005", "62ad26266", "7fe365693", "d388e1d7f"]], "identity_text": "Reject over-length options in ts_headline() (Michael Paquier) The StartSel, StopSel and FragmentDelimiter strings must not exceed 32Kb in length, but this was not checked for. An over-length value would typically crash the server. The PostgreSQL Project thanks Xint Code for reporting this problem. (CVE-2026-6473)", "commit_aliases": ["2d267ffc4", "3ed3dbbf4", "5919e0005", "62ad26266", "7fe365693", "d388e1d7f"], "source_commits": ["3ed3dbbf4"], "source_entry_id": "17.10/changes/005", "db_id": "0d396ecb6f57179d943c76706100debf", "patch_ids": ["8457c408eab825cef1442be8b008d331"], "statement_hash": "fa5b62f6b191298714caf3ad9670542a5ca5106f71c0bcc2d9d2de48ba2a0330", "relations": [{"rule": 2, "type": "equivalent", "target": "4e96017be5ce2c6f1d23bf476a962747", "evidence": {"same_day": true, "patch_ids": ["8457c408eab825cef1442be8b008d331"], "statement_hash": "fa5b62f6b191298714caf3ad9670542a5ca5106f71c0bcc2d9d2de48ba2a0330"}}, {"rule": 2, "type": "equivalent", "target": "afe38bbdb09239daec9610fc4bf0002f", "evidence": {"same_day": true, "patch_ids": ["8457c408eab825cef1442be8b008d331"], "statement_hash": "fa5b62f6b191298714caf3ad9670542a5ca5106f71c0bcc2d9d2de48ba2a0330"}}, {"rule": 2, "type": "equivalent", "target": "c2a972753505f1b0a01bf236c883ccad", "evidence": {"same_day": true, "patch_ids": ["8457c408eab825cef1442be8b008d331"], "statement_hash": "fa5b62f6b191298714caf3ad9670542a5ca5106f71c0bcc2d9d2de48ba2a0330"}}, {"rule": 2, "type": "equivalent", "target": "ca39bd1c4d36eb3d5c6808cd66068408", "evidence": {"same_day": true, "patch_ids": ["8457c408eab825cef1442be8b008d331"], "statement_hash": "fa5b62f6b191298714caf3ad9670542a5ca5106f71c0bcc2d9d2de48ba2a0330"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "afe38bbdb09239daec9610fc4bf0002f", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "拒绝 ts_headline() 中过长的选项", "evidence": {"same_day": true, "patch_ids": ["8457c408eab825cef1442be8b008d331"], "statement_hash": "fa5b62f6b191298714caf3ad9670542a5ca5106f71c0bcc2d9d2de48ba2a0330"}, "url": "/docs/compare/?release=18.4#18.4-2463210164fd4e42", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "4e96017be5ce2c6f1d23bf476a962747", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "拒绝 ts_headline() 中过长的选项", "evidence": {"same_day": true, "patch_ids": ["8457c408eab825cef1442be8b008d331"], "statement_hash": "fa5b62f6b191298714caf3ad9670542a5ca5106f71c0bcc2d9d2de48ba2a0330"}, "url": "/docs/compare/?release=16.14#16.14-d9ce899f638fe2e1", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "c2a972753505f1b0a01bf236c883ccad", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "拒绝 ts_headline() 中过长的选项", "evidence": {"same_day": true, "patch_ids": ["8457c408eab825cef1442be8b008d331"], "statement_hash": "fa5b62f6b191298714caf3ad9670542a5ca5106f71c0bcc2d9d2de48ba2a0330"}, "url": "/docs/compare/?release=15.18#15.18-c3608e796458d13b", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "ca39bd1c4d36eb3d5c6808cd66068408", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "拒绝 ts_headline() 中过长的选项", "evidence": {"same_day": true, "patch_ids": ["8457c408eab825cef1442be8b008d331"], "statement_hash": "fa5b62f6b191298714caf3ad9670542a5ca5106f71c0bcc2d9d2de48ba2a0330"}, "url": "/docs/compare/?release=14.23#14.23-c4c6b68f62616df1", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-f68835d296474e15", "cves": ["CVE-2026-6474"], "html": "防范 timeofday() 和 pg_strftime() 中的恶意时区名（Tom Lane）§ §
精心构造的时区设置可能将 % 序列传递给 snprintf()，从而可能造成崩溃或泄露服务器内存。另一条导致类似结果的路径，是让 pg_strftime() 使用的固定大小输出缓冲区溢出。
PostgreSQL 项目感谢 Xint Code 报告此问题。（CVE-2026-6474）
", "text": "防范 timeofday() 和 pg_strftime() 中的恶意时区名（Tom Lane）§ § 精心构造的时区设置可能将 % 序列传递给 snprintf()，从而可能造成崩溃或泄露服务器内存。另一条导致类似结果的路径，是让 pg_strftime() 使用的固定大小输出缓冲区溢出。 PostgreSQL 项目感谢 Xint Code 报告此问题。（CVE-2026-6474）", "title": "防范 timeofday() 和 pg_strftime() 中的恶意时区名", "commits": ["4197c880c", "a386d14fe"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "4fd55743792fde17e697b9bb26fe7c2f6f0be0f2fd47701d165ecf91326990f1", "section_path": ["变更"], "commit_groups": [["126a236ba", "24e0e3254", "4197c880c", "76ab76f87", "a50ae8306", "ba27389c2"], ["2c8226f52", "79b7847c7", "a386d14fe", "c3fff3950", "c6e7a9ef3", "ec8ded4b3"]], "identity_text": "Guard against malicious time zone names in timeofday() and pg_strftime() (Tom Lane) A crafted time zone setting could pass % sequences to snprintf(), potentially causing crashes or disclosure of server memory. Another path to similar results was to overflow the limited-size output buffer used by pg_strftime(). The PostgreSQL Project thanks Xint Code for reporting this problem. (CVE-2026-6474)", "commit_aliases": ["126a236ba", "24e0e3254", "2c8226f52", "4197c880c", "76ab76f87", "79b7847c7", "a386d14fe", "a50ae8306", "ba27389c2", "c3fff3950", "c6e7a9ef3", "ec8ded4b3"], "source_commits": ["4197c880c", "a386d14fe"], "source_entry_id": "17.10/changes/006", "db_id": "943c74b8816c45111e8f6f3e4682a426", "patch_ids": ["3f00e8116f67649860ad5a155650db89", "b65bcdf6c5ef035597912c09e793606a"], "statement_hash": "28222af75396ae38d496fb3a6ca7635e107ba94454753d5b681b8db434552806", "relations": [{"rule": 2, "type": "equivalent", "target": "2a60ebdc5466fdb8ded5b7dd70ff560e", "evidence": {"same_day": true, "patch_ids": ["3f00e8116f67649860ad5a155650db89", "b65bcdf6c5ef035597912c09e793606a"], "statement_hash": "28222af75396ae38d496fb3a6ca7635e107ba94454753d5b681b8db434552806"}}, {"rule": 2, "type": "equivalent", "target": "4746c5c97c413c4b367427dcc53d74f9", "evidence": {"same_day": true, "patch_ids": ["3f00e8116f67649860ad5a155650db89", "b65bcdf6c5ef035597912c09e793606a"], "statement_hash": "28222af75396ae38d496fb3a6ca7635e107ba94454753d5b681b8db434552806"}}, {"rule": 2, "type": "equivalent", "target": "c35bb2a8a5d8d6153139912fa574f1be", "evidence": {"same_day": true, "patch_ids": ["3f00e8116f67649860ad5a155650db89", "b65bcdf6c5ef035597912c09e793606a"], "statement_hash": "28222af75396ae38d496fb3a6ca7635e107ba94454753d5b681b8db434552806"}}, {"rule": 2, "type": "equivalent", "target": "f0c61a3ee0b896c91466e00b431d94ba", "evidence": {"same_day": true, "patch_ids": ["3f00e8116f67649860ad5a155650db89", "b65bcdf6c5ef035597912c09e793606a"], "statement_hash": "28222af75396ae38d496fb3a6ca7635e107ba94454753d5b681b8db434552806"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "2a60ebdc5466fdb8ded5b7dd70ff560e", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防范 timeofday() 和 pg_strftime() 中的恶意时区名", "evidence": {"same_day": true, "patch_ids": ["3f00e8116f67649860ad5a155650db89", "b65bcdf6c5ef035597912c09e793606a"], "statement_hash": "28222af75396ae38d496fb3a6ca7635e107ba94454753d5b681b8db434552806"}, "url": "/docs/compare/?release=18.4#18.4-3645e80ffc91fcb0", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "c35bb2a8a5d8d6153139912fa574f1be", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "防范 timeofday() 和 pg_strftime() 中的恶意时区名", "evidence": {"same_day": true, "patch_ids": ["3f00e8116f67649860ad5a155650db89", "b65bcdf6c5ef035597912c09e793606a"], "statement_hash": "28222af75396ae38d496fb3a6ca7635e107ba94454753d5b681b8db434552806"}, "url": "/docs/compare/?release=16.14#16.14-168ea3bfaefc6d61", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "f0c61a3ee0b896c91466e00b431d94ba", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "防范 timeofday() 和 pg_strftime() 中的恶意时区名", "evidence": {"same_day": true, "patch_ids": ["3f00e8116f67649860ad5a155650db89", "b65bcdf6c5ef035597912c09e793606a"], "statement_hash": "28222af75396ae38d496fb3a6ca7635e107ba94454753d5b681b8db434552806"}, "url": "/docs/compare/?release=15.18#15.18-f5ceddac85b73b26", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "4746c5c97c413c4b367427dcc53d74f9", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "防范 timeofday() 和 pg_strftime() 中的恶意时区名", "evidence": {"same_day": true, "patch_ids": ["3f00e8116f67649860ad5a155650db89", "b65bcdf6c5ef035597912c09e793606a"], "statement_hash": "28222af75396ae38d496fb3a6ca7635e107ba94454753d5b681b8db434552806"}, "url": "/docs/compare/?release=14.23#14.23-4b161a739a37e73b", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-7b894433ca4b5fde", "cves": ["CVE-2026-6472"], "html": "创建多范围类型时，确保用户在为该多范围类型指定的模式上拥有 CREATE 权限（Jelte Fennema-Nio）§
多范围类型可以放入不同于其父范围类型的模式中，但此前在这样做时遗漏了必需的权限检查。
\nPostgreSQL 项目感谢 Jelte Fennema-Nio 报告此问题。（CVE-2026-6472）
", "text": "创建多范围类型时，确保用户在为该多范围类型指定的模式上拥有 CREATE 权限（Jelte Fennema-Nio）§ 多范围类型可以放入不同于其父范围类型的模式中，但此前在这样做时遗漏了必需的权限检查。 PostgreSQL 项目感谢 Jelte Fennema-Nio 报告此问题。（CVE-2026-6472）", "title": "创建多范围类型时，确保用户在为该多范围类型指定的模式上拥有 CREATE 权限", "commits": ["c27ba08cd"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "b9a1dee4e2ef9bf197f9e5b67381deb33fce2904ae28b8062794839bc3fba70e", "section_path": ["变更"], "commit_groups": [["08c397b02", "4793fc41f", "8bca85e9f", "a44780f41", "c27ba08cd", "d92852d62"]], "identity_text": "When creating a multirange type, ensure the user has CREATE privilege on the schema specified for the multirange type (Jelte Fennema-Nio) The multirange type can be put into a different schema than its parent range type, but we neglected to apply the required privilege check when doing so. The PostgreSQL Project thanks Jelte Fennema-Nio for reporting this problem. (CVE-2026-6472)", "commit_aliases": ["08c397b02", "4793fc41f", "8bca85e9f", "a44780f41", "c27ba08cd", "d92852d62"], "source_commits": ["c27ba08cd"], "source_entry_id": "17.10/changes/007", "db_id": "482afe166c3411e42aa15c76ef043f3e", "patch_ids": ["1c201360c1e263b311b7234d83ff89be"], "statement_hash": "d04d5cbb5906b8e6e39e901491618574dca51ad80d7a3a625a786fceaddfddfd", "relations": [{"rule": 2, "type": "equivalent", "target": "65fdc90a340d7a6f096d34d54ccaf154", "evidence": {"same_day": true, "patch_ids": ["1c201360c1e263b311b7234d83ff89be"], "statement_hash": "d04d5cbb5906b8e6e39e901491618574dca51ad80d7a3a625a786fceaddfddfd"}}, {"rule": 2, "type": "equivalent", "target": "8f0e03a85bb45cde24bbedf7f781a5d5", "evidence": {"same_day": true, "patch_ids": ["1c201360c1e263b311b7234d83ff89be"], "statement_hash": "d04d5cbb5906b8e6e39e901491618574dca51ad80d7a3a625a786fceaddfddfd"}}, {"rule": 2, "type": "equivalent", "target": "c06039568f80f491221fd94687f0285e", "evidence": {"same_day": true, "patch_ids": ["1c201360c1e263b311b7234d83ff89be"], "statement_hash": "d04d5cbb5906b8e6e39e901491618574dca51ad80d7a3a625a786fceaddfddfd"}}, {"rule": 2, "type": "equivalent", "target": "d9b882bba9a59b55e34aa99621e22473", "evidence": {"same_day": true, "patch_ids": ["1c201360c1e263b311b7234d83ff89be"], "statement_hash": "d04d5cbb5906b8e6e39e901491618574dca51ad80d7a3a625a786fceaddfddfd"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "d9b882bba9a59b55e34aa99621e22473", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "创建多范围类型时，确保用户在为该多范围类型指定的模式上拥有 CREATE 权限", "evidence": {"same_day": true, "patch_ids": ["1c201360c1e263b311b7234d83ff89be"], "statement_hash": "d04d5cbb5906b8e6e39e901491618574dca51ad80d7a3a625a786fceaddfddfd"}, "url": "/docs/compare/?release=18.4#18.4-5cd7cd57980a1193", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "65fdc90a340d7a6f096d34d54ccaf154", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "创建多范围类型时，确保用户在为该多范围类型指定的模式上拥有 CREATE 权限", "evidence": {"same_day": true, "patch_ids": ["1c201360c1e263b311b7234d83ff89be"], "statement_hash": "d04d5cbb5906b8e6e39e901491618574dca51ad80d7a3a625a786fceaddfddfd"}, "url": "/docs/compare/?release=16.14#16.14-c48a9f98e69b525d", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "8f0e03a85bb45cde24bbedf7f781a5d5", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "创建多范围类型时，确保用户在为该多范围类型指定的模式上拥有 CREATE 权限", "evidence": {"same_day": true, "patch_ids": ["1c201360c1e263b311b7234d83ff89be"], "statement_hash": "d04d5cbb5906b8e6e39e901491618574dca51ad80d7a3a625a786fceaddfddfd"}, "url": "/docs/compare/?release=15.18#15.18-5774e1af35e1add1", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "c06039568f80f491221fd94687f0285e", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "创建多范围类型时，确保用户在为该多范围类型指定的模式上拥有 CREATE 权限", "evidence": {"same_day": true, "patch_ids": ["1c201360c1e263b311b7234d83ff89be"], "statement_hash": "d04d5cbb5906b8e6e39e901491618574dca51ad80d7a3a625a786fceaddfddfd"}, "url": "/docs/compare/?release=14.23#14.23-9d3fa6790baf242e", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-61c7a5bccb286bea", "cves": ["CVE-2026-6478"], "html": "在认证代码中使用时序安全的字符串比较（Michael Paquier）§ §
\n在检查口令、hash 等值时，使用 timingsafe_bcmp() 而不是 memcmp() 或 strcmp()。尚不清楚这些函数的数据依赖性在这些位置是否真的可被有效利用，但为安全起见，将其替换。
PostgreSQL 项目感谢 Joe Conway 报告此问题。（CVE-2026-6478）
", "text": "在认证代码中使用时序安全的字符串比较（Michael Paquier）§ § 在检查口令、hash 等值时，使用 timingsafe_bcmp() 而不是 memcmp() 或 strcmp()。尚不清楚这些函数的数据依赖性在这些位置是否真的可被有效利用，但为安全起见，将其替换。 PostgreSQL 项目感谢 Joe Conway 报告此问题。（CVE-2026-6478）", "title": "在认证代码中使用时序安全的字符串比较", "commits": ["8e34acfda", "c4e7435b3"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "f2d72cb6646d379b1267d67a86b2b61d54a56e50dad1f012554afe36d6d63647", "section_path": ["变更"], "commit_groups": [["00e27235e", "4608619a1", "5924e256c", "c4e7435b3", "c95275f18", "d93ef4131"], ["1604939b2", "8e34acfda", "9dcfcb92f", "b282280e9"]], "identity_text": "Use timing-safe string comparisons in authentication code (Michael Paquier) Use timingsafe_bcmp() instead of memcmp() or strcmp() when checking passwords, hashes, etc. It is not known whether the data dependency of those functions is usefully exploitable in any of these places, but in the interests of safety, replace them. The PostgreSQL Project thanks Joe Conway for reporting this problem. (CVE-2026-6478)", "commit_aliases": ["00e27235e", "1604939b2", "4608619a1", "5924e256c", "8e34acfda", "9dcfcb92f", "b282280e9", "c4e7435b3", "c95275f18", "d93ef4131"], "source_commits": ["8e34acfda", "c4e7435b3"], "source_entry_id": "17.10/changes/008", "db_id": "f4fc92fe7fa973d00f46d80cff768f2c", "patch_ids": ["4f5cfd9b1166f378c5d2d04fe94dad87", "7fbe706dd59ebe4eced7f18fe6cbf482"], "statement_hash": "7b7eca3255c6f7cb268565088cc6e073ca0b27ad15442af2772a39e51cbfd149", "relations": [{"rule": 2, "type": "equivalent", "target": "049d75b9e50ceb48ee3ba2c6a5d0f494", "evidence": {"same_day": true, "patch_ids": ["4f5cfd9b1166f378c5d2d04fe94dad87", "7fbe706dd59ebe4eced7f18fe6cbf482"], "statement_hash": "7b7eca3255c6f7cb268565088cc6e073ca0b27ad15442af2772a39e51cbfd149"}}, {"rule": 2, "type": "equivalent", "target": "0851fa23f0d4449b2336783af8c0b37f", "evidence": {"same_day": true, "patch_ids": ["4f5cfd9b1166f378c5d2d04fe94dad87", "7fbe706dd59ebe4eced7f18fe6cbf482"], "statement_hash": "7b7eca3255c6f7cb268565088cc6e073ca0b27ad15442af2772a39e51cbfd149"}}, {"rule": 2, "type": "equivalent", "target": "15b60135e3ecea3f472e4441792a26d0", "evidence": {"same_day": true, "patch_ids": ["4f5cfd9b1166f378c5d2d04fe94dad87", "7fbe706dd59ebe4eced7f18fe6cbf482"], "statement_hash": "7b7eca3255c6f7cb268565088cc6e073ca0b27ad15442af2772a39e51cbfd149"}}, {"rule": 2, "type": "equivalent", "target": "c468a98baa6993bf40cb569c73528c72", "evidence": {"same_day": true, "patch_ids": ["4f5cfd9b1166f378c5d2d04fe94dad87", "7fbe706dd59ebe4eced7f18fe6cbf482"], "statement_hash": "7b7eca3255c6f7cb268565088cc6e073ca0b27ad15442af2772a39e51cbfd149"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "c468a98baa6993bf40cb569c73528c72", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "在认证代码中使用时序安全的字符串比较", "evidence": {"same_day": true, "patch_ids": ["4f5cfd9b1166f378c5d2d04fe94dad87", "7fbe706dd59ebe4eced7f18fe6cbf482"], "statement_hash": "7b7eca3255c6f7cb268565088cc6e073ca0b27ad15442af2772a39e51cbfd149"}, "url": "/docs/compare/?release=18.4#18.4-81a3fe71f66e6eb4", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "0851fa23f0d4449b2336783af8c0b37f", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "在认证代码中使用时序安全的字符串比较", "evidence": {"same_day": true, "patch_ids": ["4f5cfd9b1166f378c5d2d04fe94dad87", "7fbe706dd59ebe4eced7f18fe6cbf482"], "statement_hash": "7b7eca3255c6f7cb268565088cc6e073ca0b27ad15442af2772a39e51cbfd149"}, "url": "/docs/compare/?release=16.14#16.14-827503d5fab7e32f", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "15b60135e3ecea3f472e4441792a26d0", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "在认证代码中使用时序安全的字符串比较", "evidence": {"same_day": true, "patch_ids": ["4f5cfd9b1166f378c5d2d04fe94dad87", "7fbe706dd59ebe4eced7f18fe6cbf482"], "statement_hash": "7b7eca3255c6f7cb268565088cc6e073ca0b27ad15442af2772a39e51cbfd149"}, "url": "/docs/compare/?release=15.18#15.18-94e55aad3ebd8168", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "049d75b9e50ceb48ee3ba2c6a5d0f494", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "在认证代码中使用时序安全的字符串比较", "evidence": {"same_day": true, "patch_ids": ["4f5cfd9b1166f378c5d2d04fe94dad87", "7fbe706dd59ebe4eced7f18fe6cbf482"], "statement_hash": "7b7eca3255c6f7cb268565088cc6e073ca0b27ad15442af2772a39e51cbfd149"}, "url": "/docs/compare/?release=14.23#14.23-cc5cacc93416a361", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-a3a6ffe2e68f9c70", "cves": ["CVE-2026-6477"], "html": "将 PQfn() 标记为不安全，并避免在 libpq 内部使用它（Nathan Bossart）§
对于非整数结果类型，PQfn() 不会获得输出缓冲区的大小，因此它无法检查服务器返回的数据能否放入缓冲区。恶意服务器因而可能覆盖客户端内存。若不改变 API 就无法修复这一点，所以将该函数标记为已废弃。在 libpq 内部，改用一个能够执行缺失检查的变体版本。
PostgreSQL 项目感谢 Yu Kunpeng 和 Martin Heistermann 报告此问题。（CVE-2026-6477）
", "text": "将 PQfn() 标记为不安全，并避免在 libpq 内部使用它（Nathan Bossart）§ 对于非整数结果类型，PQfn() 不会获得输出缓冲区的大小，因此它无法检查服务器返回的数据能否放入缓冲区。恶意服务器因而可能覆盖客户端内存。若不改变 API 就无法修复这一点，所以将该函数标记为已废弃。在 libpq 内部，改用一个能够执行缺失检查的变体版本。 PostgreSQL 项目感谢 Yu Kunpeng 和 Martin Heistermann 报告此问题。（CVE-2026-6477）", "title": "将 PQfn() 标记为不安全，并避免在 libpq 内部使用它", "commits": ["d88c7be15"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "ee352ae6aa97942af1ad1aa901fcb3e81575a0a92d8ff5aa3132ec277c1962a1", "section_path": ["变更"], "commit_groups": [["614474996", "8ac723b2b", "bd4811493", "be0136440", "d88c7be15", "e3a1f83ea"]], "identity_text": "Mark PQfn() as unsafe, and avoid using it within libpq (Nathan Bossart) For a non-integral result type, PQfn() is not passed the size of the output buffer, so it cannot check that the data returned by the server will fit. A malicious server could therefore overwrite client memory. This is unfixable without an API change, so mark the function as deprecated. Internally to libpq, use a variant version that can apply the missing check. The PostgreSQL Project thanks Yu Kunpeng and Martin Heistermann for reporting this problem. (CVE-2026-6477)", "commit_aliases": ["614474996", "8ac723b2b", "bd4811493", "be0136440", "d88c7be15", "e3a1f83ea"], "source_commits": ["d88c7be15"], "source_entry_id": "17.10/changes/009", "db_id": "5659c5fab9b3c23718775a073679d763", "patch_ids": ["751c917289b90832d6991f8f4911d6cc"], "statement_hash": "1bf9b2e2db6cb6f0cc68cfddc7ca5a446d8e7408a35bce897eda2f59aec7605b", "relations": [{"rule": 2, "type": "equivalent", "target": "4ab9970767b3ef4f9da60c3566967c2b", "evidence": {"same_day": true, "patch_ids": ["751c917289b90832d6991f8f4911d6cc"], "statement_hash": "1bf9b2e2db6cb6f0cc68cfddc7ca5a446d8e7408a35bce897eda2f59aec7605b"}}, {"rule": 2, "type": "equivalent", "target": "847daceb397313a24d7c441b2b0558f1", "evidence": {"same_day": true, "patch_ids": ["751c917289b90832d6991f8f4911d6cc"], "statement_hash": "1bf9b2e2db6cb6f0cc68cfddc7ca5a446d8e7408a35bce897eda2f59aec7605b"}}, {"rule": 2, "type": "equivalent", "target": "954548c0ee471a5891175ee04e881030", "evidence": {"same_day": true, "patch_ids": ["751c917289b90832d6991f8f4911d6cc"], "statement_hash": "1bf9b2e2db6cb6f0cc68cfddc7ca5a446d8e7408a35bce897eda2f59aec7605b"}}, {"rule": 2, "type": "equivalent", "target": "fcce310e332c33500cf3c168aae9bd79", "evidence": {"same_day": true, "patch_ids": ["751c917289b90832d6991f8f4911d6cc"], "statement_hash": "1bf9b2e2db6cb6f0cc68cfddc7ca5a446d8e7408a35bce897eda2f59aec7605b"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "847daceb397313a24d7c441b2b0558f1", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "将 PQfn() 标记为不安全，并避免在 libpq 内部使用它", "evidence": {"same_day": true, "patch_ids": ["751c917289b90832d6991f8f4911d6cc"], "statement_hash": "1bf9b2e2db6cb6f0cc68cfddc7ca5a446d8e7408a35bce897eda2f59aec7605b"}, "url": "/docs/compare/?release=18.4#18.4-d46d3c9f5a15e9ff", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "4ab9970767b3ef4f9da60c3566967c2b", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "将 PQfn() 标记为不安全，并避免在 libpq 内部使用它", "evidence": {"same_day": true, "patch_ids": ["751c917289b90832d6991f8f4911d6cc"], "statement_hash": "1bf9b2e2db6cb6f0cc68cfddc7ca5a446d8e7408a35bce897eda2f59aec7605b"}, "url": "/docs/compare/?release=16.14#16.14-0f3817e9da4bdc58", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "fcce310e332c33500cf3c168aae9bd79", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "将 PQfn() 标记为不安全，并避免在 libpq 内部使用它", "evidence": {"same_day": true, "patch_ids": ["751c917289b90832d6991f8f4911d6cc"], "statement_hash": "1bf9b2e2db6cb6f0cc68cfddc7ca5a446d8e7408a35bce897eda2f59aec7605b"}, "url": "/docs/compare/?release=15.18#15.18-aa006983b88ec66f", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "954548c0ee471a5891175ee04e881030", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "将 PQfn() 标记为不安全，并避免在 libpq 内部使用它", "evidence": {"same_day": true, "patch_ids": ["751c917289b90832d6991f8f4911d6cc"], "statement_hash": "1bf9b2e2db6cb6f0cc68cfddc7ca5a446d8e7408a35bce897eda2f59aec7605b"}, "url": "/docs/compare/?release=14.23#14.23-0894c376482213b5", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-91d502adb9e9905a", "cves": ["CVE-2026-6475"], "html": "防止 pg_basebackup 和 pg_rewind 中的路径遍历（Michael Paquier）§
\n这些应用未能验证从其输入中读取的输出文件路径，因而恶意来源可以覆盖这些应用可写的任意文件。通过拒绝绝对路径或包含父目录引用的路径，约束数据可以写入的位置。
\nPostgreSQL 项目感谢 Tencent Xuanwu Lab 的 XlabAI Team 和 Valery Gubanov 报告此问题。（CVE-2026-6475）
", "text": "防止 pg_basebackup 和 pg_rewind 中的路径遍历（Michael Paquier）§ 这些应用未能验证从其输入中读取的输出文件路径，因而恶意来源可以覆盖这些应用可写的任意文件。通过拒绝绝对路径或包含父目录引用的路径，约束数据可以写入的位置。 PostgreSQL 项目感谢 Tencent Xuanwu Lab 的 XlabAI Team 和 Valery Gubanov 报告此问题。（CVE-2026-6475）", "title": "防止 pg_basebackup 和 pg_rewind 中的路径遍历", "commits": ["8f881e188"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "785ad4ffe16487e93f3d0989e395e309e0c1ccbcfdfb6a37d96c3f43ab1d3a1d", "section_path": ["变更"], "commit_groups": [["0c83fe8e4", "498829dca", "6778af13e", "6a67c540a", "8f881e188", "a1063eece"]], "identity_text": "Prevent path traversal in pg_basebackup and pg_rewind (Michael Paquier) These applications failed to validate output file paths read from their input, so that a malicious source could overwrite any file writable by these applications. Constrain where data can be written by rejecting paths that are absolute or contain parent-directory references. The PostgreSQL Project thanks XlabAI Team of Tencent Xuanwu Lab and Valery Gubanov for reporting this problem. (CVE-2026-6475)", "commit_aliases": ["0c83fe8e4", "498829dca", "6778af13e", "6a67c540a", "8f881e188", "a1063eece"], "source_commits": ["8f881e188"], "source_entry_id": "17.10/changes/010", "db_id": "4bae8e6eba13d8b7f663721c981765fa", "patch_ids": ["642e466aa03c3fea1f14f662cc164373"], "statement_hash": "f4e8ae9e638997395a0957d148112ff560c0e68ac13f1311986f81899f914d10", "relations": [{"rule": 2, "type": "equivalent", "target": "4327318e7057209dbe42b98400f9d4be", "evidence": {"same_day": true, "patch_ids": ["642e466aa03c3fea1f14f662cc164373"], "statement_hash": "f4e8ae9e638997395a0957d148112ff560c0e68ac13f1311986f81899f914d10"}}, {"rule": 2, "type": "equivalent", "target": "5bc8c04625ad184faa480aea65f22c87", "evidence": {"same_day": true, "patch_ids": ["642e466aa03c3fea1f14f662cc164373"], "statement_hash": "f4e8ae9e638997395a0957d148112ff560c0e68ac13f1311986f81899f914d10"}}, {"rule": 2, "type": "equivalent", "target": "869c70a85bc692a897810d4c6c2c8001", "evidence": {"same_day": true, "patch_ids": ["642e466aa03c3fea1f14f662cc164373"], "statement_hash": "f4e8ae9e638997395a0957d148112ff560c0e68ac13f1311986f81899f914d10"}}, {"rule": 2, "type": "equivalent", "target": "a4a793034a07393a1194f5d901c7e563", "evidence": {"same_day": true, "patch_ids": ["642e466aa03c3fea1f14f662cc164373"], "statement_hash": "f4e8ae9e638997395a0957d148112ff560c0e68ac13f1311986f81899f914d10"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "4327318e7057209dbe42b98400f9d4be", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防止 pg_basebackup 和 pg_rewind 中的路径遍历", "evidence": {"same_day": true, "patch_ids": ["642e466aa03c3fea1f14f662cc164373"], "statement_hash": "f4e8ae9e638997395a0957d148112ff560c0e68ac13f1311986f81899f914d10"}, "url": "/docs/compare/?release=18.4#18.4-ad40fa4da3cebaa2", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "5bc8c04625ad184faa480aea65f22c87", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "防止 pg_basebackup 和 pg_rewind 中的路径遍历", "evidence": {"same_day": true, "patch_ids": ["642e466aa03c3fea1f14f662cc164373"], "statement_hash": "f4e8ae9e638997395a0957d148112ff560c0e68ac13f1311986f81899f914d10"}, "url": "/docs/compare/?release=16.14#16.14-4c65f6e78638d7b8", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "a4a793034a07393a1194f5d901c7e563", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "防止 pg_basebackup 和 pg_rewind 中的路径遍历", "evidence": {"same_day": true, "patch_ids": ["642e466aa03c3fea1f14f662cc164373"], "statement_hash": "f4e8ae9e638997395a0957d148112ff560c0e68ac13f1311986f81899f914d10"}, "url": "/docs/compare/?release=15.18#15.18-3178339f2560c1fe", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "869c70a85bc692a897810d4c6c2c8001", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "防止 pg_basebackup 和 pg_rewind 中的路径遍历", "evidence": {"same_day": true, "patch_ids": ["642e466aa03c3fea1f14f662cc164373"], "statement_hash": "f4e8ae9e638997395a0957d148112ff560c0e68ac13f1311986f81899f914d10"}, "url": "/docs/compare/?release=14.23#14.23-1e7e9c27c7b963a2", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-992f2d3fb9146406", "cves": ["CVE-2026-6473"], "html": "防范 contrib/intarray 的 query_int 类型以及 contrib/ltree 的 ltxtquery 类型中的字段溢出（Tom Lane）§ §
这些查询结构的解析没有检查 16 位字段溢出，因而可能构造出无效的查询树。执行该查询时，这可能使服务器崩溃。
\nPostgreSQL 项目感谢 Xint Code 报告此问题。（CVE-2026-6473）
", "text": "防范 contrib/intarray 的 query_int 类型以及 contrib/ltree 的 ltxtquery 类型中的字段溢出（Tom Lane）§ § 这些查询结构的解析没有检查 16 位字段溢出，因而可能构造出无效的查询树。执行该查询时，这可能使服务器崩溃。 PostgreSQL 项目感谢 Xint Code 报告此问题。（CVE-2026-6473）", "title": "防范 contrib/intarray 的 query_int 类型以及 contrib/ltree 的 ltxtquery 类型中的字段溢出", "commits": ["2b429d887", "c4d04cc48"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "e3662143874c82416b5b55fcb817fd41ae3f2abd0a7402ed64ef3fcb7d472f55", "section_path": ["变更"], "commit_groups": [["05e73b5c3", "2b429d887", "479823a71", "6f0bff33d", "906ea101d", "fc1fd3d97"], ["074702525", "43451a7a2", "5c1069c35", "84a9f2641", "c4d04cc48", "c5790ec4f"]], "identity_text": "Guard against field overflow within contrib/intarray's query_int type and contrib/ltree's ltxtquery type (Tom Lane) Parsing of these query structures did not check for overflow of 16-bit fields, so that construction of an invalid query tree was possible. This can crash the server when executing the query. The PostgreSQL Project thanks Xint Code for reporting this problem. (CVE-2026-6473)", "commit_aliases": ["05e73b5c3", "074702525", "2b429d887", "43451a7a2", "479823a71", "5c1069c35", "6f0bff33d", "84a9f2641", "906ea101d", "c4d04cc48", "c5790ec4f", "fc1fd3d97"], "source_commits": ["2b429d887", "c4d04cc48"], "source_entry_id": "17.10/changes/011", "db_id": "9f97314dd0efbba664c1f83e75fb5fa1", "patch_ids": ["6f7401152b77a4e4d59e752f19e8486b", "b419665d09a38659e641b360731e56da"], "statement_hash": "eab56845994726033024137f96b0dd1e892a863aae111c3043e8a088bf26c0d7", "relations": [{"rule": 2, "type": "equivalent", "target": "0423b242e381085c16cb62849b04525f", "evidence": {"same_day": true, "patch_ids": ["6f7401152b77a4e4d59e752f19e8486b", "b419665d09a38659e641b360731e56da"], "statement_hash": "eab56845994726033024137f96b0dd1e892a863aae111c3043e8a088bf26c0d7"}}, {"rule": 2, "type": "equivalent", "target": "2ad1fdfa4b929eb7b74591983f7fe071", "evidence": {"same_day": true, "patch_ids": ["6f7401152b77a4e4d59e752f19e8486b", "b419665d09a38659e641b360731e56da"], "statement_hash": "eab56845994726033024137f96b0dd1e892a863aae111c3043e8a088bf26c0d7"}}, {"rule": 2, "type": "equivalent", "target": "9a6b47b64707d2aaa7ed6ba0484070e5", "evidence": {"same_day": true, "patch_ids": ["6f7401152b77a4e4d59e752f19e8486b", "b419665d09a38659e641b360731e56da"], "statement_hash": "eab56845994726033024137f96b0dd1e892a863aae111c3043e8a088bf26c0d7"}}, {"rule": 2, "type": "equivalent", "target": "d29898a37787b811ca1a66114dcaa530", "evidence": {"same_day": true, "patch_ids": ["6f7401152b77a4e4d59e752f19e8486b", "b419665d09a38659e641b360731e56da"], "statement_hash": "eab56845994726033024137f96b0dd1e892a863aae111c3043e8a088bf26c0d7"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "9a6b47b64707d2aaa7ed6ba0484070e5", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防范 contrib/intarray 的 query_int 类型以及 contrib/ltree 的 ltxtquery 类型中的字段溢出", "evidence": {"same_day": true, "patch_ids": ["6f7401152b77a4e4d59e752f19e8486b", "b419665d09a38659e641b360731e56da"], "statement_hash": "eab56845994726033024137f96b0dd1e892a863aae111c3043e8a088bf26c0d7"}, "url": "/docs/compare/?release=18.4#18.4-2061b554e1b2edfa", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "0423b242e381085c16cb62849b04525f", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "防范 contrib/intarray 的 query_int 类型以及 contrib/ltree 的 ltxtquery 类型中的字段溢出", "evidence": {"same_day": true, "patch_ids": ["6f7401152b77a4e4d59e752f19e8486b", "b419665d09a38659e641b360731e56da"], "statement_hash": "eab56845994726033024137f96b0dd1e892a863aae111c3043e8a088bf26c0d7"}, "url": "/docs/compare/?release=16.14#16.14-21fce6af887a0371", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "2ad1fdfa4b929eb7b74591983f7fe071", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "防范 contrib/intarray 的 query_int 类型以及 contrib/ltree 的 ltxtquery 类型中的字段溢出", "evidence": {"same_day": true, "patch_ids": ["6f7401152b77a4e4d59e752f19e8486b", "b419665d09a38659e641b360731e56da"], "statement_hash": "eab56845994726033024137f96b0dd1e892a863aae111c3043e8a088bf26c0d7"}, "url": "/docs/compare/?release=15.18#15.18-b4e159c1c3614019", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "d29898a37787b811ca1a66114dcaa530", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "防范 contrib/intarray 的 query_int 类型以及 contrib/ltree 的 ltxtquery 类型中的字段溢出", "evidence": {"same_day": true, "patch_ids": ["6f7401152b77a4e4d59e752f19e8486b", "b419665d09a38659e641b360731e56da"], "statement_hash": "eab56845994726033024137f96b0dd1e892a863aae111c3043e8a088bf26c0d7"}, "url": "/docs/compare/?release=14.23#14.23-73b4c72ec19c85bf", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-ac24cc16660e8737", "cves": ["CVE-2026-6473"], "html": "防范 contrib/ltree 的 lquery 类型中过长的值（Michael Paquier）§
包含超过 64K 个项的值会导致内部溢出，可能造成栈破坏或错误结果。
\nPostgreSQL 项目感谢 Vergissmeinnicht、A1ex 和 Jihe Wang 报告此问题。（CVE-2026-6473）
", "text": "防范 contrib/ltree 的 lquery 类型中过长的值（Michael Paquier）§ 包含超过 64K 个项的值会导致内部溢出，可能造成栈破坏或错误结果。 PostgreSQL 项目感谢 Vergissmeinnicht、A1ex 和 Jihe Wang 报告此问题。（CVE-2026-6473）", "title": "防范 contrib/ltree 的 lquery 类型中过长的值", "commits": ["8c3426110"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "cbb63e023e7c48bc8db0a828a1936c9d4fc4819204a06f4652635f0ad8d0dec6", "section_path": ["变更"], "commit_groups": [["2f1b16e86", "6b6b26fde", "7f019f341", "8c3426110", "9c2fa5b6a", "b545c3787"]], "identity_text": "Guard against overly long values of contrib/ltree's lquery type (Michael Paquier) Values with more than 64K items caused internal overflows, potentially resulting in stack smashes or wrong answers. The PostgreSQL Project thanks Vergissmeinnicht, A1ex, and Jihe Wang for reporting this problem. (CVE-2026-6473)", "commit_aliases": ["2f1b16e86", "6b6b26fde", "7f019f341", "8c3426110", "9c2fa5b6a", "b545c3787"], "source_commits": ["8c3426110"], "source_entry_id": "17.10/changes/012", "db_id": "e57528b755cb641d030a2490a8ecb83e", "patch_ids": ["82d1afadeb06a657e558ea1b226d290b"], "statement_hash": "0f082737f7f109cba8da33aebd4d21f85a8ca0c9ac333cd92d1eafa83684e6e1", "relations": [{"rule": 2, "type": "equivalent", "target": "6aa8f69f3021e6633c690bc4d069a359", "evidence": {"same_day": true, "patch_ids": ["82d1afadeb06a657e558ea1b226d290b"], "statement_hash": "0f082737f7f109cba8da33aebd4d21f85a8ca0c9ac333cd92d1eafa83684e6e1"}}, {"rule": 2, "type": "equivalent", "target": "abd21d034ac90949aacffcced38f44c8", "evidence": {"same_day": true, "patch_ids": ["82d1afadeb06a657e558ea1b226d290b"], "statement_hash": "0f082737f7f109cba8da33aebd4d21f85a8ca0c9ac333cd92d1eafa83684e6e1"}}, {"rule": 2, "type": "equivalent", "target": "b026af4117fde9e94388242432e381e0", "evidence": {"same_day": true, "patch_ids": ["82d1afadeb06a657e558ea1b226d290b"], "statement_hash": "0f082737f7f109cba8da33aebd4d21f85a8ca0c9ac333cd92d1eafa83684e6e1"}}, {"rule": 2, "type": "equivalent", "target": "f1ea7b13a59ce4a556a97a665b13ddd9", "evidence": {"same_day": true, "patch_ids": ["82d1afadeb06a657e558ea1b226d290b"], "statement_hash": "0f082737f7f109cba8da33aebd4d21f85a8ca0c9ac333cd92d1eafa83684e6e1"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "f1ea7b13a59ce4a556a97a665b13ddd9", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防范 contrib/ltree 的 lquery 类型中过长的值", "evidence": {"same_day": true, "patch_ids": ["82d1afadeb06a657e558ea1b226d290b"], "statement_hash": "0f082737f7f109cba8da33aebd4d21f85a8ca0c9ac333cd92d1eafa83684e6e1"}, "url": "/docs/compare/?release=18.4#18.4-eb36ae972f5e73e4", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "6aa8f69f3021e6633c690bc4d069a359", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "防范 contrib/ltree 的 lquery 类型中过长的值", "evidence": {"same_day": true, "patch_ids": ["82d1afadeb06a657e558ea1b226d290b"], "statement_hash": "0f082737f7f109cba8da33aebd4d21f85a8ca0c9ac333cd92d1eafa83684e6e1"}, "url": "/docs/compare/?release=16.14#16.14-9f75dab6c6486a53", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "abd21d034ac90949aacffcced38f44c8", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "防范 contrib/ltree 的 lquery 类型中过长的值", "evidence": {"same_day": true, "patch_ids": ["82d1afadeb06a657e558ea1b226d290b"], "statement_hash": "0f082737f7f109cba8da33aebd4d21f85a8ca0c9ac333cd92d1eafa83684e6e1"}, "url": "/docs/compare/?release=15.18#15.18-f7162bdebe6fb249", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "b026af4117fde9e94388242432e381e0", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "防范 contrib/ltree 的 lquery 类型中过长的值", "evidence": {"same_day": true, "patch_ids": ["82d1afadeb06a657e558ea1b226d290b"], "statement_hash": "0f082737f7f109cba8da33aebd4d21f85a8ca0c9ac333cd92d1eafa83684e6e1"}, "url": "/docs/compare/?release=14.23#14.23-466881ae2d66f716", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-24a0ab68af146f7d", "cves": ["CVE-2026-6637"], "html": "防止 contrib/spi 中的 SQL 注入和缓冲区越界写（Nathan Bossart）§
check_foreign_key() 在为键值加引号时不够谨慎，并且还使用固定长度缓冲区构造查询。虽然该模块只是作为示例代码，但仍然不应包含此类危险错误。
PostgreSQL 项目感谢 Nikolay Samokhvalov 报告此问题。（CVE-2026-6637）
", "text": "防止 contrib/spi 中的 SQL 注入和缓冲区越界写（Nathan Bossart）§ check_foreign_key() 在为键值加引号时不够谨慎，并且还使用固定长度缓冲区构造查询。虽然该模块只是作为示例代码，但仍然不应包含此类危险错误。 PostgreSQL 项目感谢 Nikolay Samokhvalov 报告此问题。（CVE-2026-6637）", "title": "防止 contrib/spi 中的 SQL 注入和缓冲区越界写", "commits": ["2dc64ef28"], "section": "变更", "category": "security", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "26a7b8f437438d7d6acfaadcd30b96e83908358857737256dfad055a7b6822e2", "section_path": ["变更"], "commit_groups": [["1ebda7da9", "260e97733", "2b026df29", "2dc64ef28", "710995782", "8053235ab"]], "identity_text": "Prevent SQL injection and buffer overruns in contrib/spi (Nathan Bossart) check_foreign_key() was insufficiently careful about quoting key values, and also used fixed-length buffers for constructing queries. While this module is only meant as example code, it still shouldn't contain such dangerous errors. The PostgreSQL Project thanks Nikolay Samokhvalov for reporting this problem. (CVE-2026-6637)", "commit_aliases": ["1ebda7da9", "260e97733", "2b026df29", "2dc64ef28", "710995782", "8053235ab"], "source_commits": ["2dc64ef28"], "source_entry_id": "17.10/changes/013", "db_id": "80646ad1b79ca8538cfec18dd2e574d7", "patch_ids": ["41547e1e28b3ed62af00bb9fe154772c"], "statement_hash": "7b1c0422aa1716161960ade63e1f312c46555a948c91e3b00a8e5c748e70d047", "relations": [{"rule": 2, "type": "equivalent", "target": "47e292139214a78fca35c140daf58270", "evidence": {"same_day": true, "patch_ids": ["41547e1e28b3ed62af00bb9fe154772c"], "statement_hash": "7b1c0422aa1716161960ade63e1f312c46555a948c91e3b00a8e5c748e70d047"}}, {"rule": 2, "type": "equivalent", "target": "5c27c1f393abf9296bda616730209a61", "evidence": {"same_day": true, "patch_ids": ["41547e1e28b3ed62af00bb9fe154772c"], "statement_hash": "7b1c0422aa1716161960ade63e1f312c46555a948c91e3b00a8e5c748e70d047"}}, {"rule": 2, "type": "equivalent", "target": "7f0c9646c89bca074cd9e0bbd964087f", "evidence": {"same_day": true, "patch_ids": ["41547e1e28b3ed62af00bb9fe154772c"], "statement_hash": "7b1c0422aa1716161960ade63e1f312c46555a948c91e3b00a8e5c748e70d047"}}, {"rule": 2, "type": "equivalent", "target": "b9f0b8c87f7b233c50090282e467d8ed", "evidence": {"same_day": true, "patch_ids": ["41547e1e28b3ed62af00bb9fe154772c"], "statement_hash": "7b1c0422aa1716161960ade63e1f312c46555a948c91e3b00a8e5c748e70d047"}}], "version": "17.10", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "7f0c9646c89bca074cd9e0bbd964087f", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防止 contrib/spi 中的 SQL 注入和缓冲区越界写", "evidence": {"same_day": true, "patch_ids": ["41547e1e28b3ed62af00bb9fe154772c"], "statement_hash": "7b1c0422aa1716161960ade63e1f312c46555a948c91e3b00a8e5c748e70d047"}, "url": "/docs/compare/?release=18.4#18.4-723bbbf2b375795c", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "47e292139214a78fca35c140daf58270", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "防止 contrib/spi 中的 SQL 注入和缓冲区越界写", "evidence": {"same_day": true, "patch_ids": ["41547e1e28b3ed62af00bb9fe154772c"], "statement_hash": "7b1c0422aa1716161960ade63e1f312c46555a948c91e3b00a8e5c748e70d047"}, "url": "/docs/compare/?release=16.14#16.14-5c04fa5074420944", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "5c27c1f393abf9296bda616730209a61", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "防止 contrib/spi 中的 SQL 注入和缓冲区越界写", "evidence": {"same_day": true, "patch_ids": ["41547e1e28b3ed62af00bb9fe154772c"], "statement_hash": "7b1c0422aa1716161960ade63e1f312c46555a948c91e3b00a8e5c748e70d047"}, "url": "/docs/compare/?release=15.18#15.18-9aab90e2decdd59b", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "b9f0b8c87f7b233c50090282e467d8ed", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "防止 contrib/spi 中的 SQL 注入和缓冲区越界写", "evidence": {"same_day": true, "patch_ids": ["41547e1e28b3ed62af00bb9fe154772c"], "statement_hash": "7b1c0422aa1716161960ade63e1f312c46555a948c91e3b00a8e5c748e70d047"}, "url": "/docs/compare/?release=14.23#14.23-6193d19850500f38", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-3d0256182db9ecf0", "cves": [], "html": "在假定支持排序规则的类型上的等值条件意味着唯一性之前，检查是否存在非确定性排序规则（Richard Guo）§ §
\n许多规划器优化都会假定，例如，如果 x 上存在唯一索引，则最多只有一个表行能满足 WHERE x = 'abc'。不过，如果该索引和 WHERE 子句附加了不同的排序规则，一般来说这个结论是不安全的。当两个排序规则都是确定性排序规则时这是安全的，因为该属性本质上要求两个字符串相等就意味着逐位相等。但非确定性排序规则并不如此，因此如果 WHERE 子句或索引任一方具有非确定性排序规则，基于唯一匹配假设进行优化就可能给出错误的查询结果。
修复连接移除期间 RestrictInfo 结构体中关系引用移除不完整的问题（Tom Lane）§ §
已经证明这个疏忽会导致规划器失败，例如意外出现 “FULL JOIN is only supported with merge-joinable or hash-joinable join conditions” 错误。它还可能在其他情况下导致未能考虑有效的计划。
", "text": "修复连接移除期间 RestrictInfo 结构体中关系引用移除不完整的问题（Tom Lane）§ § 已经证明这个疏忽会导致规划器失败，例如意外出现 “FULL JOIN is only supported with merge-joinable or hash-joinable join conditions” 错误。它还可能在其他情况下导致未能考虑有效的计划。", "title": "修复连接移除期间 RestrictInfo 结构体中关系引用移除不完整的问题", "commits": ["53cb4ec1d", "766d40286"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "4945b26db7e5f7301e6cbe90c9b3aaf2bb10d1913e3fd2ce61a6dcc2e1edb11a", "section_path": ["变更"], "commit_groups": [["16fb94605", "766d40286", "cfcd57111", "d509be4ac"], ["53cb4ec1d", "798dabe83", "f0ac6d494"]], "identity_text": "Fix incomplete removal of relation references in RestrictInfo structs during join removal (Tom Lane) This oversight has been shown to result in planner failures such as unexpected FULL JOIN is only supported with merge-joinable or hash-joinable join conditions errors. It may also have caused failure to consider valid plans in other cases.", "commit_aliases": ["16fb94605", "53cb4ec1d", "766d40286", "798dabe83", "cfcd57111", "d509be4ac", "f0ac6d494"], "source_commits": ["53cb4ec1d", "766d40286"], "source_entry_id": "17.10/changes/015", "db_id": "0a61b6485e0144413b6e68fbe7763a8f", "patch_ids": ["22c06d077427cb5284041785d0e8cde1", "8989faf5448f269deb8ac79dc2a63860"], "statement_hash": "bbc0a2274d4af257fa49e43eafaf28ca0f12217996c9c00ed63e12bf89b35109", "relations": [{"rule": 2, "type": "equivalent", "target": "53d5de052cfe73ed3dbffe04ba42ff12", "evidence": {"same_day": true, "patch_ids": ["22c06d077427cb5284041785d0e8cde1", "8989faf5448f269deb8ac79dc2a63860"], "statement_hash": "bbc0a2274d4af257fa49e43eafaf28ca0f12217996c9c00ed63e12bf89b35109"}}, {"rule": 2, "type": "equivalent", "target": "cbba3da86525413deddd8a183780866b", "evidence": {"same_day": true, "patch_ids": ["22c06d077427cb5284041785d0e8cde1", "8989faf5448f269deb8ac79dc2a63860"], "statement_hash": "bbc0a2274d4af257fa49e43eafaf28ca0f12217996c9c00ed63e12bf89b35109"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "cbba3da86525413deddd8a183780866b", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复连接移除期间 RestrictInfo 结构体中关系引用移除不完整的问题", "evidence": {"same_day": true, "patch_ids": ["22c06d077427cb5284041785d0e8cde1", "8989faf5448f269deb8ac79dc2a63860"], "statement_hash": "bbc0a2274d4af257fa49e43eafaf28ca0f12217996c9c00ed63e12bf89b35109"}, "url": "/docs/compare/?release=18.4#18.4-316d774d0290fc1b", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "53d5de052cfe73ed3dbffe04ba42ff12", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复连接移除期间 RestrictInfo 结构体中关系引用移除不完整的问题", "evidence": {"same_day": true, "patch_ids": ["22c06d077427cb5284041785d0e8cde1", "8989faf5448f269deb8ac79dc2a63860"], "statement_hash": "bbc0a2274d4af257fa49e43eafaf28ca0f12217996c9c00ed63e12bf89b35109"}, "url": "/docs/compare/?release=16.14#16.14-f353d43afdeb3aa2", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}]}, {"id": "17.10-5a2d4121326fa353", "cves": [], "html": "修正规则动作和规则限定条件中对 NEW 生成列的错误处理（Richard Guo，Dean Rasheed）§
此前，在 INSERT 情况下，此类列引用会生成 NULL；在 UPDATE 情况下，则等同于 OLD 值。
修复虚假的 “generated columns are not supported in COPY FROM WHERE conditions” 错误（Tom Lane）§
\n在 COPY FROM WHERE 条件中使用系统列时，有时会错误报告此错误。
当 MERGE 在可重复读或可串行化模式下遇到被并发更新的元组时，正确报告串行化失败（Tender Wang）§
此前，这类场景的行为与较低隔离级别中的行为相同。
", "text": "当 MERGE 在可重复读或可串行化模式下遇到被并发更新的元组时，正确报告串行化失败（Tender Wang）§ 此前，这类场景的行为与较低隔离级别中的行为相同。", "title": "当 MERGE 在可重复读或可串行化模式下遇到被并发更新的元组时，正确报告串行化失败", "commits": ["2dcac93c0"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "079852db8b655741d2e5073b29a6901174de745c49803dc097cbe1a804a8b420", "section_path": ["变更"], "commit_groups": [["13fab378e", "177037341", "2dcac93c0", "8bfaae6fb", "f6e63d4b8"]], "identity_text": "Correctly report a serialization failure when MERGE encounters a concurrently-updated tuple in repeatable-read or serializable mode (Tender Wang) Previously, such cases behaved the same as in lower isolation levels.", "commit_aliases": ["13fab378e", "177037341", "2dcac93c0", "8bfaae6fb", "f6e63d4b8"], "source_commits": ["2dcac93c0"], "source_entry_id": "17.10/changes/018", "db_id": "f9969f9244f4ca14ba57359448274286", "patch_ids": ["569476436f6f49fe3fc1c20af4157acf"], "statement_hash": "298c05dfef81a90cfb05f72e7375c2ceb55354d2b8c327b08b686d82ad2857b4", "relations": [{"rule": 2, "type": "equivalent", "target": "3f720165e3e8a599ba151cefd48b97e8", "evidence": {"same_day": true, "patch_ids": ["569476436f6f49fe3fc1c20af4157acf"], "statement_hash": "298c05dfef81a90cfb05f72e7375c2ceb55354d2b8c327b08b686d82ad2857b4"}}, {"rule": 2, "type": "equivalent", "target": "6827747aec40694708ad07aebaf4d3c0", "evidence": {"same_day": true, "patch_ids": ["569476436f6f49fe3fc1c20af4157acf"], "statement_hash": "298c05dfef81a90cfb05f72e7375c2ceb55354d2b8c327b08b686d82ad2857b4"}}, {"rule": 2, "type": "equivalent", "target": "bfb26a4ca22c86d79dfde428bbcc3c24", "evidence": {"same_day": true, "patch_ids": ["569476436f6f49fe3fc1c20af4157acf"], "statement_hash": "298c05dfef81a90cfb05f72e7375c2ceb55354d2b8c327b08b686d82ad2857b4"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "bfb26a4ca22c86d79dfde428bbcc3c24", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "当 MERGE 在可重复读或可串行化模式下遇到被并发更新的元组时，正确报告串行化失败", "evidence": {"same_day": true, "patch_ids": ["569476436f6f49fe3fc1c20af4157acf"], "statement_hash": "298c05dfef81a90cfb05f72e7375c2ceb55354d2b8c327b08b686d82ad2857b4"}, "url": "/docs/compare/?release=18.4#18.4-34de9da81adc1f79", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "6827747aec40694708ad07aebaf4d3c0", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "当 MERGE 在可重复读或可串行化模式下遇到被并发更新的元组时，正确报告串行化失败", "evidence": {"same_day": true, "patch_ids": ["569476436f6f49fe3fc1c20af4157acf"], "statement_hash": "298c05dfef81a90cfb05f72e7375c2ceb55354d2b8c327b08b686d82ad2857b4"}, "url": "/docs/compare/?release=16.14#16.14-f98d5e856950c9e4", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "3f720165e3e8a599ba151cefd48b97e8", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "当 MERGE 在可重复读或可串行化模式下遇到被并发更新的元组时，正确报告串行化失败", "evidence": {"same_day": true, "patch_ids": ["569476436f6f49fe3fc1c20af4157acf"], "statement_hash": "298c05dfef81a90cfb05f72e7375c2ceb55354d2b8c327b08b686d82ad2857b4"}, "url": "/docs/compare/?release=15.18#15.18-7ceac60eaa54d492", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}]}, {"id": "17.10-b893eef62a42d4d7", "cves": [], "html": "修复源表包含已删除列时的 CREATE TABLE ... LIKE ... INCLUDING STATISTICS（Julien Tachoires）§
在这类情况下，扩展统计信息对象可能会被错误复制，或该命令可能给出错误的报错。
", "text": "修复源表包含已删除列时的 CREATE TABLE ... LIKE ... INCLUDING STATISTICS（Julien Tachoires）§ 在这类情况下，扩展统计信息对象可能会被错误复制，或该命令可能给出错误的报错。", "title": "修复源表包含已删除列时的 CREATE TABLE ... LIKE ... INCLUDING STATISTICS", "commits": ["a0104b447"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "c99174cf64b7eea39c68151182ae03a33c00690a47820e0b9a18f5122be4fcc0", "section_path": ["变更"], "commit_groups": [["149c875fc", "6cf49e804", "76d15a7ee", "7bb519635", "81b56b47c", "a0104b447"]], "identity_text": "Fix CREATE TABLE ... LIKE ... INCLUDING STATISTICS for cases where the source table has dropped column(s) (Julien Tachoires) In such cases, extended statistics objects could be copied incorrectly, or the command could give an incorrect error.", "commit_aliases": ["149c875fc", "6cf49e804", "76d15a7ee", "7bb519635", "81b56b47c", "a0104b447"], "source_commits": ["a0104b447"], "source_entry_id": "17.10/changes/019", "db_id": "e7ce3c2946bfdef059fc3d3621ffd79d", "patch_ids": ["910e6f19667b7b2c274a7cfa4cfbf09c"], "statement_hash": "468cd074434d5b124a2f3ad7e4d4363935368333f67c114d461285e65aadff62", "relations": [{"rule": 2, "type": "equivalent", "target": "259f6916a28a7dd3bbeb72cc130b41a9", "evidence": {"same_day": true, "patch_ids": ["910e6f19667b7b2c274a7cfa4cfbf09c"], "statement_hash": "468cd074434d5b124a2f3ad7e4d4363935368333f67c114d461285e65aadff62"}}, {"rule": 2, "type": "equivalent", "target": "2e2724c6cc505b0329f5a78d83fd96cb", "evidence": {"same_day": true, "patch_ids": ["910e6f19667b7b2c274a7cfa4cfbf09c"], "statement_hash": "468cd074434d5b124a2f3ad7e4d4363935368333f67c114d461285e65aadff62"}}, {"rule": 2, "type": "equivalent", "target": "4b8420c7de509df1179d8ee1c1364ee6", "evidence": {"same_day": true, "patch_ids": ["910e6f19667b7b2c274a7cfa4cfbf09c"], "statement_hash": "468cd074434d5b124a2f3ad7e4d4363935368333f67c114d461285e65aadff62"}}, {"rule": 2, "type": "equivalent", "target": "d68baf1e5d412f66c44df3a681238123", "evidence": {"same_day": true, "patch_ids": ["910e6f19667b7b2c274a7cfa4cfbf09c"], "statement_hash": "468cd074434d5b124a2f3ad7e4d4363935368333f67c114d461285e65aadff62"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "4b8420c7de509df1179d8ee1c1364ee6", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复源表包含已删除列时的 CREATE TABLE ... LIKE ... INCLUDING STATISTICS", "evidence": {"same_day": true, "patch_ids": ["910e6f19667b7b2c274a7cfa4cfbf09c"], "statement_hash": "468cd074434d5b124a2f3ad7e4d4363935368333f67c114d461285e65aadff62"}, "url": "/docs/compare/?release=18.4#18.4-da4a103ca5dfdddc", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "d68baf1e5d412f66c44df3a681238123", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复源表包含已删除列时的 CREATE TABLE ... LIKE ... INCLUDING STATISTICS", "evidence": {"same_day": true, "patch_ids": ["910e6f19667b7b2c274a7cfa4cfbf09c"], "statement_hash": "468cd074434d5b124a2f3ad7e4d4363935368333f67c114d461285e65aadff62"}, "url": "/docs/compare/?release=16.14#16.14-659db987f4321cc2", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "259f6916a28a7dd3bbeb72cc130b41a9", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复源表包含已删除列时的 CREATE TABLE ... LIKE ... INCLUDING STATISTICS", "evidence": {"same_day": true, "patch_ids": ["910e6f19667b7b2c274a7cfa4cfbf09c"], "statement_hash": "468cd074434d5b124a2f3ad7e4d4363935368333f67c114d461285e65aadff62"}, "url": "/docs/compare/?release=15.18#15.18-442a4e22f7b920a0", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "2e2724c6cc505b0329f5a78d83fd96cb", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "修复源表包含已删除列时的 CREATE TABLE ... LIKE ... INCLUDING STATISTICS", "evidence": {"same_day": true, "patch_ids": ["910e6f19667b7b2c274a7cfa4cfbf09c"], "statement_hash": "468cd074434d5b124a2f3ad7e4d4363935368333f67c114d461285e65aadff62"}, "url": "/docs/compare/?release=14.23#14.23-8c2e835d537dac09", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-a232240e214fd3cc", "cves": [], "html": "允许 ALTER INDEX ... ATTACH PARTITION 在适当时将父索引标记为有效（Sami Imseih）§
存在一些边界情况：即使分区索引的所有叶子索引均有效，该分区索引仍可能保持被标记为无效。此变更提供了一种机制，使用户可以在不借助手工更新系统目录的情况下纠正这种情况。
", "text": "允许 ALTER INDEX ... ATTACH PARTITION 在适当时将父索引标记为有效（Sami Imseih）§ 存在一些边界情况：即使分区索引的所有叶子索引均有效，该分区索引仍可能保持被标记为无效。此变更提供了一种机制，使用户可以在不借助手工更新系统目录的情况下纠正这种情况。", "title": "允许 ALTER INDEX ... ATTACH PARTITION 在适当时将父索引标记为有效", "commits": ["becf6d269"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "39c45cb24e6043ba94ecb1d9d725935a191b8294323a8e2be61775cb2ec0d7a1", "section_path": ["变更"], "commit_groups": [["0859000d0", "313355d68", "5713ac248", "9d3e094f1", "becf6d269", "d809b16d1"]], "identity_text": "Allow ALTER INDEX ... ATTACH PARTITION to mark the parent index valid if appropriate (Sami Imseih) There are edge cases in which a partitioned index might remain marked as invalid even when all its leaf indexes are valid. This change provides a mechanism whereby a user can correct such a situation without resorting to manual catalog updates.", "commit_aliases": ["0859000d0", "313355d68", "5713ac248", "9d3e094f1", "becf6d269", "d809b16d1"], "source_commits": ["becf6d269"], "source_entry_id": "17.10/changes/020", "db_id": "73eae229fd96afa624d3ae9343724889", "patch_ids": ["6f61faf076a411f9a9c18c51b74befa0"], "statement_hash": "d56280bb59ca7a2079394584e577949d3d1706a31278203bdc18b376a97f5ff5", "relations": [{"rule": 2, "type": "equivalent", "target": "15a0dfb907bce338c1244951e2379584", "evidence": {"same_day": true, "patch_ids": ["6f61faf076a411f9a9c18c51b74befa0"], "statement_hash": "d56280bb59ca7a2079394584e577949d3d1706a31278203bdc18b376a97f5ff5"}}, {"rule": 2, "type": "equivalent", "target": "3b47c18aac1b9d5d839c6ae4de3ae964", "evidence": {"same_day": true, "patch_ids": ["6f61faf076a411f9a9c18c51b74befa0"], "statement_hash": "d56280bb59ca7a2079394584e577949d3d1706a31278203bdc18b376a97f5ff5"}}, {"rule": 2, "type": "equivalent", "target": "9efa82150808ee72d1b174825d7f47d3", "evidence": {"same_day": true, "patch_ids": ["6f61faf076a411f9a9c18c51b74befa0"], "statement_hash": "d56280bb59ca7a2079394584e577949d3d1706a31278203bdc18b376a97f5ff5"}}, {"rule": 2, "type": "equivalent", "target": "ef8cca025501a2f559a921e005a2df3a", "evidence": {"same_day": true, "patch_ids": ["6f61faf076a411f9a9c18c51b74befa0"], "statement_hash": "d56280bb59ca7a2079394584e577949d3d1706a31278203bdc18b376a97f5ff5"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "9efa82150808ee72d1b174825d7f47d3", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "允许 ALTER INDEX ... ATTACH PARTITION 在适当时将父索引标记为有效", "evidence": {"same_day": true, "patch_ids": ["6f61faf076a411f9a9c18c51b74befa0"], "statement_hash": "d56280bb59ca7a2079394584e577949d3d1706a31278203bdc18b376a97f5ff5"}, "url": "/docs/compare/?release=18.4#18.4-720217f77930b818", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "3b47c18aac1b9d5d839c6ae4de3ae964", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "允许 ALTER INDEX ... ATTACH PARTITION 在适当时将父索引标记为有效", "evidence": {"same_day": true, "patch_ids": ["6f61faf076a411f9a9c18c51b74befa0"], "statement_hash": "d56280bb59ca7a2079394584e577949d3d1706a31278203bdc18b376a97f5ff5"}, "url": "/docs/compare/?release=16.14#16.14-afd48d79cce62769", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "15a0dfb907bce338c1244951e2379584", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "允许 ALTER INDEX ... ATTACH PARTITION 在适当时将父索引标记为有效", "evidence": {"same_day": true, "patch_ids": ["6f61faf076a411f9a9c18c51b74befa0"], "statement_hash": "d56280bb59ca7a2079394584e577949d3d1706a31278203bdc18b376a97f5ff5"}, "url": "/docs/compare/?release=15.18#15.18-216b3db2d84f9f35", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "ef8cca025501a2f559a921e005a2df3a", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "允许 ALTER INDEX ... ATTACH PARTITION 在适当时将父索引标记为有效", "evidence": {"same_day": true, "patch_ids": ["6f61faf076a411f9a9c18c51b74befa0"], "statement_hash": "d56280bb59ca7a2079394584e577949d3d1706a31278203bdc18b376a97f5ff5"}, "url": "/docs/compare/?release=14.23#14.23-eb7da046cd9a17ab", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-c4bb8ccc29a46458", "cves": [], "html": "修复 ALTER FOREIGN DATA WRAPPER，使其不要删除包装器对象对其处理器函数的依赖（Jeff Davis）§
不允许复合类型通过多范围成为自身的成员（Heikki Linnakangas）§
\n当中间类型是域、数组、复合类型或范围时，我们已经禁止此类情况；但此前遗漏了多范围。
", "text": "不允许复合类型通过多范围成为自身的成员（Heikki Linnakangas）§ 当中间类型是域、数组、复合类型或范围时，我们已经禁止此类情况；但此前遗漏了多范围。", "title": "不允许复合类型通过多范围成为自身的成员", "commits": ["54343f6f9"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "d3d4f65dcea0cb79998f9b950559b14f52edc3897ec665e0966422c6b5c164fe", "section_path": ["变更"], "commit_groups": [["06e304524", "34ebeb15c", "54343f6f9", "c7a1d5fc6", "dd4069197", "ff8f27d6e"]], "identity_text": "Disallow making a composite type be a member of itself via a multirange (Heikki Linnakangas) We already forbade such cases when the intermediate type is a domain, array, composite type, or range; but multiranges were overlooked.", "commit_aliases": ["06e304524", "34ebeb15c", "54343f6f9", "c7a1d5fc6", "dd4069197", "ff8f27d6e"], "source_commits": ["54343f6f9"], "source_entry_id": "17.10/changes/022", "db_id": "dbfa0390a811562580299aed6addef7f", "patch_ids": ["31c00f6d7ed28a6712dcf1e113075156"], "statement_hash": "6b4527853dd5e8e984500173324ec598d423dfc66e71302f1bdff48a4af1e5d2", "relations": [{"rule": 2, "type": "equivalent", "target": "aaf1253e3301e7ce01966fdecb2168ff", "evidence": {"same_day": true, "patch_ids": ["31c00f6d7ed28a6712dcf1e113075156"], "statement_hash": "6b4527853dd5e8e984500173324ec598d423dfc66e71302f1bdff48a4af1e5d2"}}, {"rule": 2, "type": "equivalent", "target": "db27ce7162c0f5f66e5e36b2b4394be0", "evidence": {"same_day": true, "patch_ids": ["31c00f6d7ed28a6712dcf1e113075156"], "statement_hash": "6b4527853dd5e8e984500173324ec598d423dfc66e71302f1bdff48a4af1e5d2"}}, {"rule": 2, "type": "equivalent", "target": "e0d6011d1ad1750ec99d7b452609aa5c", "evidence": {"same_day": true, "patch_ids": ["31c00f6d7ed28a6712dcf1e113075156"], "statement_hash": "6b4527853dd5e8e984500173324ec598d423dfc66e71302f1bdff48a4af1e5d2"}}, {"rule": 2, "type": "equivalent", "target": "e65839c47b604979321948f58b376888", "evidence": {"same_day": true, "patch_ids": ["31c00f6d7ed28a6712dcf1e113075156"], "statement_hash": "6b4527853dd5e8e984500173324ec598d423dfc66e71302f1bdff48a4af1e5d2"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "e65839c47b604979321948f58b376888", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "不允许复合类型通过多范围成为自身的成员", "evidence": {"same_day": true, "patch_ids": ["31c00f6d7ed28a6712dcf1e113075156"], "statement_hash": "6b4527853dd5e8e984500173324ec598d423dfc66e71302f1bdff48a4af1e5d2"}, "url": "/docs/compare/?release=18.4#18.4-ccc5811ee220170a", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "aaf1253e3301e7ce01966fdecb2168ff", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "不允许复合类型通过多范围成为自身的成员", "evidence": {"same_day": true, "patch_ids": ["31c00f6d7ed28a6712dcf1e113075156"], "statement_hash": "6b4527853dd5e8e984500173324ec598d423dfc66e71302f1bdff48a4af1e5d2"}, "url": "/docs/compare/?release=16.14#16.14-320b63dd288d6613", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "db27ce7162c0f5f66e5e36b2b4394be0", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "不允许复合类型通过多范围成为自身的成员", "evidence": {"same_day": true, "patch_ids": ["31c00f6d7ed28a6712dcf1e113075156"], "statement_hash": "6b4527853dd5e8e984500173324ec598d423dfc66e71302f1bdff48a4af1e5d2"}, "url": "/docs/compare/?release=15.18#15.18-1b434ad500a69006", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "e0d6011d1ad1750ec99d7b452609aa5c", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "不允许复合类型通过多范围成为自身的成员", "evidence": {"same_day": true, "patch_ids": ["31c00f6d7ed28a6712dcf1e113075156"], "statement_hash": "6b4527853dd5e8e984500173324ec598d423dfc66e71302f1bdff48a4af1e5d2"}, "url": "/docs/compare/?release=14.23#14.23-50453b6dffac196c", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-0fb5ea65c461a113", "cves": [], "html": "修复 Datum 镜像比较，使其不受符号扩展差异影响（David Rowley）§
\n这修复了一些此前会导致 “could not find memoization table entry” 错误或错误查询结果的情况。
", "text": "修复 Datum 镜像比较，使其不受符号扩展差异影响（David Rowley）§ 这修复了一些此前会导致 “could not find memoization table entry” 错误或错误查询结果的情况。", "title": "修复 Datum 镜像比较，使其不受符号扩展差异影响", "commits": ["d29808e35"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "ccc9af25f994bd2829c8d173776f703ac30a49ca5ab8fd28baef88660e9624e0", "section_path": ["变更"], "commit_groups": [["0d866282b", "1bd90c887", "49315de0c", "6b2e091f0", "6ce5c310b", "d29808e35"]], "identity_text": "Fix datum-image comparisons to be insensitive to sign-extension variations (David Rowley) This fixes some situations that previously led to could not find memoization table entry errors or wrong query results.", "commit_aliases": ["0d866282b", "1bd90c887", "49315de0c", "6b2e091f0", "6ce5c310b", "d29808e35"], "source_commits": ["d29808e35"], "source_entry_id": "17.10/changes/023", "db_id": "f9a962dc778922758842bad523e4e935", "patch_ids": ["8b2152dc84fbefe58a465b0d497fe197"], "statement_hash": "95b38df8932c40bbb6eed0884f5ec817fd4ee7218c45df42545da1f44dd8095a", "relations": [{"rule": 2, "type": "equivalent", "target": "5cabc37ab2a14b9bb0980c3ed400e023", "evidence": {"same_day": true, "patch_ids": ["8b2152dc84fbefe58a465b0d497fe197"], "statement_hash": "95b38df8932c40bbb6eed0884f5ec817fd4ee7218c45df42545da1f44dd8095a"}}, {"rule": 2, "type": "equivalent", "target": "6de901a8850aaba4f6cb4f60757fd10b", "evidence": {"same_day": true, "patch_ids": ["8b2152dc84fbefe58a465b0d497fe197"], "statement_hash": "95b38df8932c40bbb6eed0884f5ec817fd4ee7218c45df42545da1f44dd8095a"}}, {"rule": 2, "type": "equivalent", "target": "c5c180d0b102c66e23f3e5c67497661a", "evidence": {"same_day": true, "patch_ids": ["8b2152dc84fbefe58a465b0d497fe197"], "statement_hash": "95b38df8932c40bbb6eed0884f5ec817fd4ee7218c45df42545da1f44dd8095a"}}, {"rule": 2, "type": "equivalent", "target": "e186e88d722a03078d4189e25842fa12", "evidence": {"same_day": true, "patch_ids": ["8b2152dc84fbefe58a465b0d497fe197"], "statement_hash": "95b38df8932c40bbb6eed0884f5ec817fd4ee7218c45df42545da1f44dd8095a"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "c5c180d0b102c66e23f3e5c67497661a", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复 Datum 镜像比较，使其不受符号扩展差异影响", "evidence": {"same_day": true, "patch_ids": ["8b2152dc84fbefe58a465b0d497fe197"], "statement_hash": "95b38df8932c40bbb6eed0884f5ec817fd4ee7218c45df42545da1f44dd8095a"}, "url": "/docs/compare/?release=18.4#18.4-4ed3df97c772ff79", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "e186e88d722a03078d4189e25842fa12", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复 Datum 镜像比较，使其不受符号扩展差异影响", "evidence": {"same_day": true, "patch_ids": ["8b2152dc84fbefe58a465b0d497fe197"], "statement_hash": "95b38df8932c40bbb6eed0884f5ec817fd4ee7218c45df42545da1f44dd8095a"}, "url": "/docs/compare/?release=16.14#16.14-8586f1e2f65191db", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "6de901a8850aaba4f6cb4f60757fd10b", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复 Datum 镜像比较，使其不受符号扩展差异影响", "evidence": {"same_day": true, "patch_ids": ["8b2152dc84fbefe58a465b0d497fe197"], "statement_hash": "95b38df8932c40bbb6eed0884f5ec817fd4ee7218c45df42545da1f44dd8095a"}, "url": "/docs/compare/?release=15.18#15.18-35c4133cc110d098", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "5cabc37ab2a14b9bb0980c3ed400e023", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "修复 Datum 镜像比较，使其不受符号扩展差异影响", "evidence": {"same_day": true, "patch_ids": ["8b2152dc84fbefe58a465b0d497fe197"], "statement_hash": "95b38df8932c40bbb6eed0884f5ec817fd4ee7218c45df42545da1f44dd8095a"}, "url": "/docs/compare/?release=14.23#14.23-92e44334a5563e50", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-c7e5a864f1920ba5", "cves": [], "html": "修复带非严格等值操作符的 hash IN/NOT IN 的错误逻辑（Chengpeng Yan）§
此前的代码可能崩溃或给出错误结果。所有内置数据类型都有严格的等值操作符，因此此问题只可能出现在扩展数据类型上。
", "text": "修复带非严格等值操作符的 hash IN/NOT IN 的错误逻辑（Chengpeng Yan）§ 此前的代码可能崩溃或给出错误结果。所有内置数据类型都有严格的等值操作符，因此此问题只可能出现在扩展数据类型上。", "title": "修复带非严格等值操作符的 hash IN/NOT IN 的错误逻辑", "commits": ["3fda3e12f"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "ff77748ad998449b557ee83bd7f3fc29e4d02d37f028ecd87cf49a60a6901213", "section_path": ["变更"], "commit_groups": [["035c520db", "109de35b7", "3fda3e12f", "622f8b530", "94219a73f", "a2a0060d5"]], "identity_text": "Fix incorrect logic for hashed IN/NOT IN with non-strict equality operator (Chengpeng Yan) The previous coding could crash or give wrong answers. All built-in data types have strict equality operators, so that this issue could only arise with an extension data type.", "commit_aliases": ["035c520db", "109de35b7", "3fda3e12f", "622f8b530", "94219a73f", "a2a0060d5"], "source_commits": ["3fda3e12f"], "source_entry_id": "17.10/changes/024", "db_id": "6a9e4a1d32172e81ee680d6f0342ca63", "patch_ids": ["73bcd2dbc996c0415640dea74d4f247f"], "statement_hash": "f620e21c617639503e22ec199ea3bdfd888287e95b5e026131bfa74e2fd18e5d", "relations": [{"rule": 2, "type": "equivalent", "target": "2a86497013a318262f46769723449b63", "evidence": {"same_day": true, "patch_ids": ["73bcd2dbc996c0415640dea74d4f247f"], "statement_hash": "f620e21c617639503e22ec199ea3bdfd888287e95b5e026131bfa74e2fd18e5d"}}, {"rule": 2, "type": "equivalent", "target": "450e4329b437178c4c67084a2ce52024", "evidence": {"same_day": true, "patch_ids": ["73bcd2dbc996c0415640dea74d4f247f"], "statement_hash": "f620e21c617639503e22ec199ea3bdfd888287e95b5e026131bfa74e2fd18e5d"}}, {"rule": 2, "type": "equivalent", "target": "c26aa4cfe9a48bc8f6b4f3924802efa7", "evidence": {"same_day": true, "patch_ids": ["73bcd2dbc996c0415640dea74d4f247f"], "statement_hash": "f620e21c617639503e22ec199ea3bdfd888287e95b5e026131bfa74e2fd18e5d"}}, {"rule": 2, "type": "equivalent", "target": "d1a95a788ffc450fd8a8b393d2c3e55d", "evidence": {"same_day": true, "patch_ids": ["73bcd2dbc996c0415640dea74d4f247f"], "statement_hash": "f620e21c617639503e22ec199ea3bdfd888287e95b5e026131bfa74e2fd18e5d"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "d1a95a788ffc450fd8a8b393d2c3e55d", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复带非严格等值操作符的 hash IN/NOT IN 的错误逻辑", "evidence": {"same_day": true, "patch_ids": ["73bcd2dbc996c0415640dea74d4f247f"], "statement_hash": "f620e21c617639503e22ec199ea3bdfd888287e95b5e026131bfa74e2fd18e5d"}, "url": "/docs/compare/?release=18.4#18.4-e5344bf8a6d35197", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "c26aa4cfe9a48bc8f6b4f3924802efa7", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复带非严格等值操作符的 hash IN/NOT IN 的错误逻辑", "evidence": {"same_day": true, "patch_ids": ["73bcd2dbc996c0415640dea74d4f247f"], "statement_hash": "f620e21c617639503e22ec199ea3bdfd888287e95b5e026131bfa74e2fd18e5d"}, "url": "/docs/compare/?release=16.14#16.14-0eb4bde24f0d6fca", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "450e4329b437178c4c67084a2ce52024", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复带非严格等值操作符的 hash IN/NOT IN 的错误逻辑", "evidence": {"same_day": true, "patch_ids": ["73bcd2dbc996c0415640dea74d4f247f"], "statement_hash": "f620e21c617639503e22ec199ea3bdfd888287e95b5e026131bfa74e2fd18e5d"}, "url": "/docs/compare/?release=15.18#15.18-60c7c179902fa568", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "2a86497013a318262f46769723449b63", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "修复带非严格等值操作符的 hash IN/NOT IN 的错误逻辑", "evidence": {"same_day": true, "patch_ids": ["73bcd2dbc996c0415640dea74d4f247f"], "statement_hash": "f620e21c617639503e22ec199ea3bdfd888287e95b5e026131bfa74e2fd18e5d"}, "url": "/docs/compare/?release=14.23#14.23-7486ce91b98a0959", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-ead7a4370e3d50c0", "cves": [], "html": "在 to_char() 中截断过长的区域设置相关数字符号（Tom Lane）§
如果某个区域设置指定了长度超过 8 字节的货币符号、千位分隔符、小数符号或正负号符号，就可能出现缓冲区越界写。现实世界中不存在这样的区域设置，而且非特权攻击者也不太可能在 Postgres 服务器下安装恶意区域设置定义；但为安全起见，检查过长符号并在需要时截断。
", "text": "在 to_char() 中截断过长的区域设置相关数字符号（Tom Lane）§ 如果某个区域设置指定了长度超过 8 字节的货币符号、千位分隔符、小数符号或正负号符号，就可能出现缓冲区越界写。现实世界中不存在这样的区域设置，而且非特权攻击者也不太可能在 Postgres 服务器下安装恶意区域设置定义；但为安全起见，检查过长符号并在需要时截断。", "title": "在 to_char() 中截断过长的区域设置相关数字符号", "commits": ["c97a28618"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "53cf2ded33c30d4ec26265057cf50e563b91c3c3bebb51b84cc29388502b10a7", "section_path": ["变更"], "commit_groups": [["580e7be88", "8a6f08c0c", "a50777680", "c97a28618", "e1e60f148", "f60d25986"]], "identity_text": "Truncate overly-long locale-specific numeric symbols in to_char() (Tom Lane) If a locale specified a currency symbol, thousands separator, or decimal or sign symbol more than 8 bytes long, a buffer overrun was possible. No such locales exist in the real world, and it's impractical for an unprivileged attacker to install a malicious locale definition underneath a Postgres server; but for safety's sake check for overlength symbols and truncate if needed.", "commit_aliases": ["580e7be88", "8a6f08c0c", "a50777680", "c97a28618", "e1e60f148", "f60d25986"], "source_commits": ["c97a28618"], "source_entry_id": "17.10/changes/025", "db_id": "07daab7dbccbfcc34db05980b3a74098", "patch_ids": ["a55b3cc17f0905d7ae426fd181a6dfc3"], "statement_hash": "faa5531634d9cdfe864f4512cf61a4628efe72bf20a627237eac6e0fc2e723b0", "relations": [{"rule": 2, "type": "equivalent", "target": "29acc0aac3cc6b0ee03ac19b4559887d", "evidence": {"same_day": true, "patch_ids": ["a55b3cc17f0905d7ae426fd181a6dfc3"], "statement_hash": "faa5531634d9cdfe864f4512cf61a4628efe72bf20a627237eac6e0fc2e723b0"}}, {"rule": 2, "type": "equivalent", "target": "606d4464f34532059b31083c8d4b85db", "evidence": {"same_day": true, "patch_ids": ["a55b3cc17f0905d7ae426fd181a6dfc3"], "statement_hash": "faa5531634d9cdfe864f4512cf61a4628efe72bf20a627237eac6e0fc2e723b0"}}, {"rule": 2, "type": "equivalent", "target": "7477baaf42cc60c640f8610e0225343b", "evidence": {"same_day": true, "patch_ids": ["a55b3cc17f0905d7ae426fd181a6dfc3"], "statement_hash": "faa5531634d9cdfe864f4512cf61a4628efe72bf20a627237eac6e0fc2e723b0"}}, {"rule": 2, "type": "equivalent", "target": "da89f430482b72634ad3d2f296bb5a93", "evidence": {"same_day": true, "patch_ids": ["a55b3cc17f0905d7ae426fd181a6dfc3"], "statement_hash": "faa5531634d9cdfe864f4512cf61a4628efe72bf20a627237eac6e0fc2e723b0"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "606d4464f34532059b31083c8d4b85db", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "在 to_char() 中截断过长的区域设置相关数字符号", "evidence": {"same_day": true, "patch_ids": ["a55b3cc17f0905d7ae426fd181a6dfc3"], "statement_hash": "faa5531634d9cdfe864f4512cf61a4628efe72bf20a627237eac6e0fc2e723b0"}, "url": "/docs/compare/?release=18.4#18.4-695d3a73d2ecfb3e", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "7477baaf42cc60c640f8610e0225343b", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "在 to_char() 中截断过长的区域设置相关数字符号", "evidence": {"same_day": true, "patch_ids": ["a55b3cc17f0905d7ae426fd181a6dfc3"], "statement_hash": "faa5531634d9cdfe864f4512cf61a4628efe72bf20a627237eac6e0fc2e723b0"}, "url": "/docs/compare/?release=16.14#16.14-eda4c756b58b4a86", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "29acc0aac3cc6b0ee03ac19b4559887d", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "在 to_char() 中截断过长的区域设置相关数字符号", "evidence": {"same_day": true, "patch_ids": ["a55b3cc17f0905d7ae426fd181a6dfc3"], "statement_hash": "faa5531634d9cdfe864f4512cf61a4628efe72bf20a627237eac6e0fc2e723b0"}, "url": "/docs/compare/?release=15.18#15.18-d044032a493dc642", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "da89f430482b72634ad3d2f296bb5a93", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "在 to_char() 中截断过长的区域设置相关数字符号", "evidence": {"same_day": true, "patch_ids": ["a55b3cc17f0905d7ae426fd181a6dfc3"], "statement_hash": "faa5531634d9cdfe864f4512cf61a4628efe72bf20a627237eac6e0fc2e723b0"}, "url": "/docs/compare/?release=14.23#14.23-a905b9ca587d8842", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-666b81e0c79b2b28", "cves": [], "html": "防止解析 Ispell 字典的词缀文件时发生缓冲区越界写（Tom Lane）§ §
损坏或恶意的词缀文件可能使服务器崩溃。这不被视为安全问题，因为文本检索配置文件被假定为可信，但仍然值得修复。
", "text": "防止解析 Ispell 字典的词缀文件时发生缓冲区越界写（Tom Lane）§ § 损坏或恶意的词缀文件可能使服务器崩溃。这不被视为安全问题，因为文本检索配置文件被假定为可信，但仍然值得修复。", "title": "防止解析 Ispell 字典的词缀文件时发生缓冲区越界写", "commits": ["a5426dbf8", "ea5f0d176"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "f6920ec6017618c6fcbb9b943af3649958ca32d2d839dba22c80d2ba174bd0f2", "section_path": ["变更"], "commit_groups": [["00c6e0819", "0b196d3db", "21a24d709", "42383d32d", "d7970e7e9", "ea5f0d176"], ["17f72e037", "6cae0c2bd", "844bb90d4", "a5426dbf8", "c2bfeb3bb", "f852c9093"]], "identity_text": "Prevent buffer overruns when parsing an affix file for an Ispell dictionary (Tom Lane) A corrupt or malicious affix file could crash the server. This is not considered a security issue because text search configuration files are presumed trustworthy, but it still seems worth fixing.", "commit_aliases": ["00c6e0819", "0b196d3db", "17f72e037", "21a24d709", "42383d32d", "6cae0c2bd", "844bb90d4", "a5426dbf8", "c2bfeb3bb", "d7970e7e9", "ea5f0d176", "f852c9093"], "source_commits": ["a5426dbf8", "ea5f0d176"], "source_entry_id": "17.10/changes/026", "db_id": "2b5095497f4832976becc4b644155c51", "patch_ids": ["3b2347be1395aa44c1c6ae6a8fa24149", "fb61cc9fc6ef6ecc94c4f87d31a648bd"], "statement_hash": "6442ebdc43f39cc7a336c76cc8f8bcdfb68cc5683190ee35457bd8a1cd9e22d8", "relations": [{"rule": 2, "type": "equivalent", "target": "12f322f4feb75f55804ad196b114a9d6", "evidence": {"same_day": true, "patch_ids": ["3b2347be1395aa44c1c6ae6a8fa24149", "fb61cc9fc6ef6ecc94c4f87d31a648bd"], "statement_hash": "6442ebdc43f39cc7a336c76cc8f8bcdfb68cc5683190ee35457bd8a1cd9e22d8"}}, {"rule": 2, "type": "equivalent", "target": "5f8b6d695a4f9576cfb99b263e2e4ff7", "evidence": {"same_day": true, "patch_ids": ["3b2347be1395aa44c1c6ae6a8fa24149", "fb61cc9fc6ef6ecc94c4f87d31a648bd"], "statement_hash": "6442ebdc43f39cc7a336c76cc8f8bcdfb68cc5683190ee35457bd8a1cd9e22d8"}}, {"rule": 2, "type": "equivalent", "target": "cd403cd225ef88fed48df9f593dd683b", "evidence": {"same_day": true, "patch_ids": ["3b2347be1395aa44c1c6ae6a8fa24149", "fb61cc9fc6ef6ecc94c4f87d31a648bd"], "statement_hash": "6442ebdc43f39cc7a336c76cc8f8bcdfb68cc5683190ee35457bd8a1cd9e22d8"}}, {"rule": 2, "type": "equivalent", "target": "f2129c1b029d4e186640295ff2fd808d", "evidence": {"same_day": true, "patch_ids": ["3b2347be1395aa44c1c6ae6a8fa24149", "fb61cc9fc6ef6ecc94c4f87d31a648bd"], "statement_hash": "6442ebdc43f39cc7a336c76cc8f8bcdfb68cc5683190ee35457bd8a1cd9e22d8"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "12f322f4feb75f55804ad196b114a9d6", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防止解析 Ispell 字典的词缀文件时发生缓冲区越界写", "evidence": {"same_day": true, "patch_ids": ["3b2347be1395aa44c1c6ae6a8fa24149", "fb61cc9fc6ef6ecc94c4f87d31a648bd"], "statement_hash": "6442ebdc43f39cc7a336c76cc8f8bcdfb68cc5683190ee35457bd8a1cd9e22d8"}, "url": "/docs/compare/?release=18.4#18.4-e6587b3cd0787b2e", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "cd403cd225ef88fed48df9f593dd683b", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "防止解析 Ispell 字典的词缀文件时发生缓冲区越界写", "evidence": {"same_day": true, "patch_ids": ["3b2347be1395aa44c1c6ae6a8fa24149", "fb61cc9fc6ef6ecc94c4f87d31a648bd"], "statement_hash": "6442ebdc43f39cc7a336c76cc8f8bcdfb68cc5683190ee35457bd8a1cd9e22d8"}, "url": "/docs/compare/?release=16.14#16.14-0a0d8d6349e3929d", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "5f8b6d695a4f9576cfb99b263e2e4ff7", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "防止解析 Ispell 字典的词缀文件时发生缓冲区越界写", "evidence": {"same_day": true, "patch_ids": ["3b2347be1395aa44c1c6ae6a8fa24149", "fb61cc9fc6ef6ecc94c4f87d31a648bd"], "statement_hash": "6442ebdc43f39cc7a336c76cc8f8bcdfb68cc5683190ee35457bd8a1cd9e22d8"}, "url": "/docs/compare/?release=15.18#15.18-87e3f08b5312ecda", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "f2129c1b029d4e186640295ff2fd808d", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "防止解析 Ispell 字典的词缀文件时发生缓冲区越界写", "evidence": {"same_day": true, "patch_ids": ["3b2347be1395aa44c1c6ae6a8fa24149", "fb61cc9fc6ef6ecc94c4f87d31a648bd"], "statement_hash": "6442ebdc43f39cc7a336c76cc8f8bcdfb68cc5683190ee35457bd8a1cd9e22d8"}, "url": "/docs/compare/?release=14.23#14.23-1446a031fd4414f4", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-9cc0aae20d353dbd", "cves": [], "html": "防范窗口聚合的帧起始和结束位置计算中的整数溢出（Richard Guo）§
\n用户指定的极大偏移量（接近 INT64_MAX）可能导致错误或错误的查询结果。
", "text": "防范窗口聚合的帧起始和结束位置计算中的整数溢出（Richard Guo）§ 用户指定的极大偏移量（接近 INT64_MAX）可能导致错误或错误的查询结果。", "title": "防范窗口聚合的帧起始和结束位置计算中的整数溢出", "commits": ["f8736f8bc"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "74fda3083bc64696c73c73794bdb207409c7c3c6fa0cf56465e94020ade48175", "section_path": ["变更"], "commit_groups": [["0fe032e6a", "305cf0df0", "4da71fc37", "8b6c89e37", "bfc7dff26", "f8736f8bc"]], "identity_text": "Guard against integer overflow in calculations of frame start and end positions for window aggregates (Richard Guo) Very large user-specified offsets (close to INT64_MAX) could result in errors or incorrect query results.", "commit_aliases": ["0fe032e6a", "305cf0df0", "4da71fc37", "8b6c89e37", "bfc7dff26", "f8736f8bc"], "source_commits": ["f8736f8bc"], "source_entry_id": "17.10/changes/027", "db_id": "f1cd95144d4553602b7e2fbfe36961ad", "patch_ids": ["55f185c77388b5ccf5f79078a7a19b0b"], "statement_hash": "84aa1ad98df37853c6497eff68ec71c4a468e09bd91604bc168bf3a8ad45d544", "relations": [{"rule": 2, "type": "equivalent", "target": "511c913495519e0301f1fb895b89e0e3", "evidence": {"same_day": true, "patch_ids": ["55f185c77388b5ccf5f79078a7a19b0b"], "statement_hash": "84aa1ad98df37853c6497eff68ec71c4a468e09bd91604bc168bf3a8ad45d544"}}, {"rule": 2, "type": "equivalent", "target": "8ad5f4df6d3f1b7115577a0c720eb3e0", "evidence": {"same_day": true, "patch_ids": ["55f185c77388b5ccf5f79078a7a19b0b"], "statement_hash": "84aa1ad98df37853c6497eff68ec71c4a468e09bd91604bc168bf3a8ad45d544"}}, {"rule": 2, "type": "equivalent", "target": "9a742821f3f95e4a90a5c8c342890d50", "evidence": {"same_day": true, "patch_ids": ["55f185c77388b5ccf5f79078a7a19b0b"], "statement_hash": "84aa1ad98df37853c6497eff68ec71c4a468e09bd91604bc168bf3a8ad45d544"}}, {"rule": 2, "type": "equivalent", "target": "cac7bd4fb899dfb735baa61da9c859ec", "evidence": {"same_day": true, "patch_ids": ["55f185c77388b5ccf5f79078a7a19b0b"], "statement_hash": "84aa1ad98df37853c6497eff68ec71c4a468e09bd91604bc168bf3a8ad45d544"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "511c913495519e0301f1fb895b89e0e3", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防范窗口聚合的帧起始和结束位置计算中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["55f185c77388b5ccf5f79078a7a19b0b"], "statement_hash": "84aa1ad98df37853c6497eff68ec71c4a468e09bd91604bc168bf3a8ad45d544"}, "url": "/docs/compare/?release=18.4#18.4-e679f36c64f131bf", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "9a742821f3f95e4a90a5c8c342890d50", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "防范窗口聚合的帧起始和结束位置计算中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["55f185c77388b5ccf5f79078a7a19b0b"], "statement_hash": "84aa1ad98df37853c6497eff68ec71c4a468e09bd91604bc168bf3a8ad45d544"}, "url": "/docs/compare/?release=16.14#16.14-ed110186d7aac633", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "8ad5f4df6d3f1b7115577a0c720eb3e0", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "防范窗口聚合的帧起始和结束位置计算中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["55f185c77388b5ccf5f79078a7a19b0b"], "statement_hash": "84aa1ad98df37853c6497eff68ec71c4a468e09bd91604bc168bf3a8ad45d544"}, "url": "/docs/compare/?release=15.18#15.18-41f6cd511e262ba3", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "cac7bd4fb899dfb735baa61da9c859ec", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "防范窗口聚合的帧起始和结束位置计算中的整数溢出", "evidence": {"same_day": true, "patch_ids": ["55f185c77388b5ccf5f79078a7a19b0b"], "statement_hash": "84aa1ad98df37853c6497eff68ec71c4a468e09bd91604bc168bf3a8ad45d544"}, "url": "/docs/compare/?release=14.23#14.23-170736a74064aa19", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-62d51a1802de9407", "cves": [], "html": "修复 array_agg_array_combine()，使其正确组合数组的空值位图（Dmytro Astapov）§
此错误导致并行化的 array_agg(anyarray) 计算有时产生不正确输出。
如果 sync_file_range() 返回错误码 EINTR，则进行重试（DaeMyung Kang）§
修复 pg_stat_reset_single_table_counters() 在共享系统目录上的错误行为（Chao Li）§
这类场景会产生重置当前数据库的 stat_reset_timestamp 的副作用，而这不是有意的。
当并行应用工作进程空闲时更新活动统计信息（Zhijie Hou）§
\n以前，刚完成事务的统计信息可能长时间不被报告，尤其在工作负载较轻时。
", "text": "当并行应用工作进程空闲时更新活动统计信息（Zhijie Hou）§ 以前，刚完成事务的统计信息可能长时间不被报告，尤其在工作负载较轻时。", "title": "当并行应用工作进程空闲时更新活动统计信息", "commits": ["88d7fdcc9"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "cb9e6cd136b0bb86d1e09583d4c62584630a1c238ff2e7f3884765b3d7598403", "section_path": ["变更"], "commit_groups": [["090c4297e", "44c8dc280", "88d7fdcc9", "d052f6c7d"]], "identity_text": "Update activity statistics when a parallel apply worker is idle (Zhijie Hou) Previously, statistics from a recently-completed transaction might go unreported for long intervals, particularly if the workload is light.", "commit_aliases": ["090c4297e", "44c8dc280", "88d7fdcc9", "d052f6c7d"], "source_commits": ["88d7fdcc9"], "source_entry_id": "17.10/changes/031", "db_id": "96a3e2b2d17bbc2072d29a84e39fe9f0", "patch_ids": ["2d9114e9de0545265b46f9271e79774e"], "statement_hash": "1425951cf41b73475715e34b86444749dadef32d8dd753ca05fb84c5dcab7db0", "relations": [{"rule": 2, "type": "equivalent", "target": "677b87203fcf8da98790d6378484a333", "evidence": {"same_day": true, "patch_ids": ["2d9114e9de0545265b46f9271e79774e"], "statement_hash": "1425951cf41b73475715e34b86444749dadef32d8dd753ca05fb84c5dcab7db0"}}, {"rule": 2, "type": "equivalent", "target": "980b17cc0e380660feb5723048978d0c", "evidence": {"same_day": true, "patch_ids": ["2d9114e9de0545265b46f9271e79774e"], "statement_hash": "1425951cf41b73475715e34b86444749dadef32d8dd753ca05fb84c5dcab7db0"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "980b17cc0e380660feb5723048978d0c", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "当并行应用工作进程空闲时更新活动统计信息", "evidence": {"same_day": true, "patch_ids": ["2d9114e9de0545265b46f9271e79774e"], "statement_hash": "1425951cf41b73475715e34b86444749dadef32d8dd753ca05fb84c5dcab7db0"}, "url": "/docs/compare/?release=18.4#18.4-c51eded9a9ad369c", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "677b87203fcf8da98790d6378484a333", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "当并行应用工作进程空闲时更新活动统计信息", "evidence": {"same_day": true, "patch_ids": ["2d9114e9de0545265b46f9271e79774e"], "statement_hash": "1425951cf41b73475715e34b86444749dadef32d8dd753ca05fb84c5dcab7db0"}, "url": "/docs/compare/?release=16.14#16.14-46ffad47336d7f40", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}]}, {"id": "17.10-b34c916fe548b623", "cves": [], "html": "修复集合操作中估算数组长度时出现的 “no relation entry for relid 0” 失败（Tender Wang）§
", "text": "修复集合操作中估算数组长度时出现的 “no relation entry for relid 0” 失败（Tender Wang）§", "title": "修复集合操作中估算数组长度时出现的 “no relation entry for relid 0” 失败", "commits": ["93ed18720"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "c2198678d068b878eeead02e98b71dfbe403564a71e7946bd7b5cffa4a812d6b", "section_path": ["变更"], "commit_groups": [["13e20d1c9", "77d0e82e5", "93ed18720"]], "identity_text": "Fix no relation entry for relid 0 failure while estimating array lengths in set operations (Tender Wang)", "commit_aliases": ["13e20d1c9", "77d0e82e5", "93ed18720"], "source_commits": ["93ed18720"], "source_entry_id": "17.10/changes/032", "db_id": "767acd748e88add4e0b136661b09348d", "patch_ids": ["564821c3480587e28f1a951776d143da"], "statement_hash": "79d2c12d4a24236694523bc4108c4ef1ad8487e654635a5140572e534f35ca67", "relations": [{"rule": 2, "type": "equivalent", "target": "8b93ba333f257971520839fdfb923dc8", "evidence": {"same_day": true, "patch_ids": ["564821c3480587e28f1a951776d143da"], "statement_hash": "79d2c12d4a24236694523bc4108c4ef1ad8487e654635a5140572e534f35ca67"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "8b93ba333f257971520839fdfb923dc8", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复集合操作中估算数组长度时出现的 “no relation entry for relid 0” 失败", "evidence": {"same_day": true, "patch_ids": ["564821c3480587e28f1a951776d143da"], "statement_hash": "79d2c12d4a24236694523bc4108c4ef1ad8487e654635a5140572e534f35ca67"}, "url": "/docs/compare/?release=18.4#18.4-9a9061bf537ff043", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}]}, {"id": "17.10-fc2a0ba457a12efa", "cves": [], "html": "修复 pglz_decompress() 接收损坏输入时的缓冲区越界读问题（Andrew Dunstan）§
此前可能读取输入末尾之后的几个字节，在极其不走运的情况下可能导致崩溃。
", "text": "修复 pglz_decompress() 接收损坏输入时的缓冲区越界读问题（Andrew Dunstan）§ 此前可能读取输入末尾之后的几个字节，在极其不走运的情况下可能导致崩溃。", "title": "修复 pglz_decompress() 接收损坏输入时的缓冲区越界读问题", "commits": ["c05c3baf1"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "4b17f906aa7eb8ad7e4507cbd56fe8b41b68db07a64205263a914fd24fb6b1cb", "section_path": ["变更"], "commit_groups": [["2b5ba2a0a", "c05c3baf1", "c3e436b1c", "c88ad3a21", "de32a01e7", "e630f65d0"]], "identity_text": "Fix buffer overread when pglz_decompress() receives corrupt input (Andrew Dunstan) It was possible to read a few bytes past the end of the input, which in very unlucky cases might cause a crash.", "commit_aliases": ["2b5ba2a0a", "c05c3baf1", "c3e436b1c", "c88ad3a21", "de32a01e7", "e630f65d0"], "source_commits": ["c05c3baf1"], "source_entry_id": "17.10/changes/033", "db_id": "7d77c3cf4d2df5b2b05bab302e7d6447", "patch_ids": ["c0bb5d07bdfbe114b7578587383a80fa"], "statement_hash": "bd7b2a40bb8d7d7798cf8ecb76df72f44a9455b09e9d2f6b36769b9fa697b84d", "relations": [{"rule": 2, "type": "equivalent", "target": "0ae0f8c53b17ca5f253bbab76a0d9b74", "evidence": {"same_day": true, "patch_ids": ["c0bb5d07bdfbe114b7578587383a80fa"], "statement_hash": "bd7b2a40bb8d7d7798cf8ecb76df72f44a9455b09e9d2f6b36769b9fa697b84d"}}, {"rule": 2, "type": "equivalent", "target": "31b4e32fc9a04113a1aeaa4d2e794a7e", "evidence": {"same_day": true, "patch_ids": ["c0bb5d07bdfbe114b7578587383a80fa"], "statement_hash": "bd7b2a40bb8d7d7798cf8ecb76df72f44a9455b09e9d2f6b36769b9fa697b84d"}}, {"rule": 2, "type": "equivalent", "target": "8f0710244d42d6ab314f2ef4a78fa91d", "evidence": {"same_day": true, "patch_ids": ["c0bb5d07bdfbe114b7578587383a80fa"], "statement_hash": "bd7b2a40bb8d7d7798cf8ecb76df72f44a9455b09e9d2f6b36769b9fa697b84d"}}, {"rule": 2, "type": "equivalent", "target": "f313199e743d40f3a6df92ac0387bcfa", "evidence": {"same_day": true, "patch_ids": ["c0bb5d07bdfbe114b7578587383a80fa"], "statement_hash": "bd7b2a40bb8d7d7798cf8ecb76df72f44a9455b09e9d2f6b36769b9fa697b84d"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "0ae0f8c53b17ca5f253bbab76a0d9b74", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复 pglz_decompress() 接收损坏输入时的缓冲区越界读问题", "evidence": {"same_day": true, "patch_ids": ["c0bb5d07bdfbe114b7578587383a80fa"], "statement_hash": "bd7b2a40bb8d7d7798cf8ecb76df72f44a9455b09e9d2f6b36769b9fa697b84d"}, "url": "/docs/compare/?release=18.4#18.4-1b7a6be51f8649d8", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "f313199e743d40f3a6df92ac0387bcfa", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复 pglz_decompress() 接收损坏输入时的缓冲区越界读问题", "evidence": {"same_day": true, "patch_ids": ["c0bb5d07bdfbe114b7578587383a80fa"], "statement_hash": "bd7b2a40bb8d7d7798cf8ecb76df72f44a9455b09e9d2f6b36769b9fa697b84d"}, "url": "/docs/compare/?release=16.14#16.14-43db7f38ffec18ea", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "8f0710244d42d6ab314f2ef4a78fa91d", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复 pglz_decompress() 接收损坏输入时的缓冲区越界读问题", "evidence": {"same_day": true, "patch_ids": ["c0bb5d07bdfbe114b7578587383a80fa"], "statement_hash": "bd7b2a40bb8d7d7798cf8ecb76df72f44a9455b09e9d2f6b36769b9fa697b84d"}, "url": "/docs/compare/?release=15.18#15.18-e99de70478646f68", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "31b4e32fc9a04113a1aeaa4d2e794a7e", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "修复 pglz_decompress() 接收损坏输入时的缓冲区越界读问题", "evidence": {"same_day": true, "patch_ids": ["c0bb5d07bdfbe114b7578587383a80fa"], "statement_hash": "bd7b2a40bb8d7d7798cf8ecb76df72f44a9455b09e9d2f6b36769b9fa697b84d"}, "url": "/docs/compare/?release=14.23#14.23-a9f0074e1ae26260", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-4d205143d096f8a7", "cves": [], "html": "修复增量 JSON 解析器对跨输入缓冲区边界的数字词元的处理（Andrew Dunstan）§
\n过去可能接受格式不正确的数字，导致后续失败。
", "text": "修复增量 JSON 解析器对跨输入缓冲区边界的数字词元的处理（Andrew Dunstan）§ 过去可能接受格式不正确的数字，导致后续失败。", "title": "修复增量 JSON 解析器对跨输入缓冲区边界的数字词元的处理", "commits": ["2e373785e"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "33325669276531c82dd02bf7df15732f7f5ae68f70ba2e81bc9b4b4c02141d9b", "section_path": ["变更"], "commit_groups": [["2478bd5db", "2e373785e", "3e4955630"]], "identity_text": "Fix incremental JSON parser's handling of numeric tokens that cross input buffer boundaries (Andrew Dunstan) It was possible to accept an incorrectly-formatted number, leading to failures later.", "commit_aliases": ["2478bd5db", "2e373785e", "3e4955630"], "source_commits": ["2e373785e"], "source_entry_id": "17.10/changes/034", "db_id": "56aacc58e4b3c19869652bc7bccc257f", "patch_ids": ["3a87b59bc06c42cccbaad53a59170a0f"], "statement_hash": "e510b6a330131e0a9e306a9599eda0558466f19ce69118716f8d3a5ac91b7463", "relations": [{"rule": 2, "type": "equivalent", "target": "19c77cbe8cf7f7f6073b8df365b35790", "evidence": {"same_day": true, "patch_ids": ["3a87b59bc06c42cccbaad53a59170a0f"], "statement_hash": "e510b6a330131e0a9e306a9599eda0558466f19ce69118716f8d3a5ac91b7463"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "19c77cbe8cf7f7f6073b8df365b35790", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复增量 JSON 解析器对跨输入缓冲区边界的数字词元的处理", "evidence": {"same_day": true, "patch_ids": ["3a87b59bc06c42cccbaad53a59170a0f"], "statement_hash": "e510b6a330131e0a9e306a9599eda0558466f19ce69118716f8d3a5ac91b7463"}, "url": "/docs/compare/?release=18.4#18.4-dd2acc7c0ea39340", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}]}, {"id": "17.10-1a6869f33820ce4a", "cves": [], "html": "防止恢复增量备份时关系可见性映射膨胀（Robert Haas）§
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", "text": "防止恢复增量备份时关系可见性映射膨胀（Robert Haas）§ 由于错误计算预期文件长度，恢复可能向可见性映射追加许多零块。这不会导致数据损坏，但可能浪费大量磁盘空间。", "title": "防止恢复增量备份时关系可见性映射膨胀", "commits": ["076bc57fa"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "1e80d02fef5aadca82ddebd7cf41b40a0532ba63207742c20123562cc728b8a5", "section_path": ["变更"], "commit_groups": [["076bc57fa", "9540c0e5d", "ffc226ab6"]], "identity_text": "Prevent bloating relation visibility maps during restore of an incremental backup (Robert Haas) Restore could append many blocks of zeroes to a visibility map, due to incorrect computation of the expected file length. This does not result in data corruption, but it could waste a substantial amount of disk space.", "commit_aliases": ["076bc57fa", "9540c0e5d", "ffc226ab6"], "source_commits": ["076bc57fa"], "source_entry_id": "17.10/changes/035", "db_id": "8d78dd5d30d4094d87fbfc3de7307fc9", "patch_ids": ["738fd594a90796c809e728fbc5651d22"], "statement_hash": "8be561d5ad13698eca7d90b5fd9fbde1028f705a3031ab9e786774f2c9f7b3a2", "relations": [{"rule": 2, "type": "equivalent", "target": "53b7f65c3e08f9341b47945f095569e8", "evidence": {"same_day": true, "patch_ids": ["738fd594a90796c809e728fbc5651d22"], "statement_hash": "8be561d5ad13698eca7d90b5fd9fbde1028f705a3031ab9e786774f2c9f7b3a2"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "53b7f65c3e08f9341b47945f095569e8", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防止恢复增量备份时关系可见性映射膨胀", "evidence": {"same_day": true, "patch_ids": ["738fd594a90796c809e728fbc5651d22"], "statement_hash": "8be561d5ad13698eca7d90b5fd9fbde1028f705a3031ab9e786774f2c9f7b3a2"}, "url": "/docs/compare/?release=18.4#18.4-7eaea7144baecfd7", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}]}, {"id": "17.10-a4c0aebef3a26164", "cves": [], "html": "在文本列上的系统目录缓存查找中使用 C 排序规则，而不是数据库的默认排序规则（Jeff Davis）§
\n这避免了某些边缘场景中的失败，例如物理复制启动时没有已确定的数据库，因而无法确定默认排序规则。
", "text": "在文本列上的系统目录缓存查找中使用 C 排序规则，而不是数据库的默认排序规则（Jeff Davis）§ 这避免了某些边缘场景中的失败，例如物理复制启动时没有已确定的数据库，因而无法确定默认排序规则。", "title": "在文本列上的系统目录缓存查找中使用 C 排序规则，而不是数据库的默认排序规则", "commits": ["9dda30dd3"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "881bf17ac375351c42b978fb1777565f85077b618a99451953fc1307ca23fb4d", "section_path": ["变更"], "commit_groups": [["03c4f243e", "9dda30dd3", "dbf217c1c"]], "identity_text": "Use C collation, not the database's default collation, in catalog cache lookups on text columns (Jeff Davis) This avoids failures in edge cases such as physical replication startup, where there is no identified database so that a default collation cannot be determined.", "commit_aliases": ["03c4f243e", "9dda30dd3", "dbf217c1c"], "source_commits": ["9dda30dd3"], "source_entry_id": "17.10/changes/036", "db_id": "b4e242e2dfdaddd1a84c10f08ab6fdb6", "patch_ids": ["1a030429f091c1d56d52205c2930f3cc"], "statement_hash": "c93618f8a7ca56819cbbb9cf9df80953c6fe150819de3e1e7fad58e879a5f52f", "relations": [{"rule": 2, "type": "equivalent", "target": "eedc842000f52b63d80fc16df2a3a7fa", "evidence": {"same_day": true, "patch_ids": ["1a030429f091c1d56d52205c2930f3cc"], "statement_hash": "c93618f8a7ca56819cbbb9cf9df80953c6fe150819de3e1e7fad58e879a5f52f"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "eedc842000f52b63d80fc16df2a3a7fa", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "在文本列上的系统目录缓存查找中使用 C 排序规则，而不是数据库的默认排序规则", "evidence": {"same_day": true, "patch_ids": ["1a030429f091c1d56d52205c2930f3cc"], "statement_hash": "c93618f8a7ca56819cbbb9cf9df80953c6fe150819de3e1e7fad58e879a5f52f"}, "url": "/docs/compare/?release=18.4#18.4-3a216fc3a56d1f2e", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}]}, {"id": "17.10-f9ca5e51b9e70665", "cves": [], "html": "防止卡住的 slotsync 工作进程阻塞备库提升（Nisha Moond、Ajin Cherian）§ § §
\n一个徒劳等待主库响应的工作进程，会让提升延迟一段不合理的时间。
", "text": "防止卡住的 slotsync 工作进程阻塞备库提升（Nisha Moond、Ajin Cherian）§ § § 一个徒劳等待主库响应的工作进程，会让提升延迟一段不合理的时间。", "title": "防止卡住的 slotsync 工作进程阻塞备库提升", "commits": ["15910b1c3", "4bed04d39", "586f4266f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "8c18f1365ef8d4f33d75f546c46b888c3171bd67f6bdb59d957558e4d0f6bee6", "section_path": ["变更"], "commit_groups": [["1362bc33e", "4bed04d39", "94efd308b"], ["15910b1c3", "58c1188a3", "db93032a7"], ["586f4266f", "acf49bfed"]], "identity_text": "Prevent stuck slotsync worker processes from blocking promotion of a standby server (Nisha Moond, Ajin Cherian) A worker process that was vainly waiting for a response from the primary would delay promotion for an unreasonable amount of time.", "commit_aliases": ["1362bc33e", "15910b1c3", "4bed04d39", "586f4266f", "58c1188a3", "94efd308b", "acf49bfed", "db93032a7"], "source_commits": ["15910b1c3", "4bed04d39", "586f4266f"], "source_entry_id": "17.10/changes/037", "db_id": "299696a41fbafef0ba66bb25a5daba56", "patch_ids": ["0631393988a6e439ca6c21edde5e08d0", "d9eacc799b9f25f84495940918c9855b", "f0a73f0938081885d684993c67dca652"], "statement_hash": "86bf0b738194ea614f01e7178f35891e27741d55257e8b4157bf2182cf0b6509", "relations": [{"rule": 2, "type": "equivalent", "target": "e197fe7e68af6fc16360be64080650fb", "evidence": {"same_day": true, "patch_ids": ["0631393988a6e439ca6c21edde5e08d0", "d9eacc799b9f25f84495940918c9855b", "f0a73f0938081885d684993c67dca652"], "statement_hash": "86bf0b738194ea614f01e7178f35891e27741d55257e8b4157bf2182cf0b6509"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "e197fe7e68af6fc16360be64080650fb", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防止卡住的 slotsync 工作进程阻塞备库提升", "evidence": {"same_day": true, "patch_ids": ["0631393988a6e439ca6c21edde5e08d0", "d9eacc799b9f25f84495940918c9855b", "f0a73f0938081885d684993c67dca652"], "statement_hash": "86bf0b738194ea614f01e7178f35891e27741d55257e8b4157bf2182cf0b6509"}, "url": "/docs/compare/?release=18.4#18.4-401593c891e36279", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}]}, {"id": "17.10-f979cb3196409f3b", "cves": [], "html": "修复空闲 slotsync 工作进程产生过多日志输出的问题（Zhijie Hou）§
", "text": "修复空闲 slotsync 工作进程产生过多日志输出的问题（Zhijie Hou）§", "title": "修复空闲 slotsync 工作进程产生过多日志输出的问题", "commits": ["91741b7cb"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "184befbf180482a913e10d475d9913df6db34b1278b0ec8b0fd84da77c7f49f3", "section_path": ["变更"], "commit_groups": [["540fe8fb5", "85c17f612", "91741b7cb"]], "identity_text": "Fix excessive log output from idle slotsync worker processes (Zhijie Hou)", "commit_aliases": ["540fe8fb5", "85c17f612", "91741b7cb"], "source_commits": ["91741b7cb"], "source_entry_id": "17.10/changes/038", "db_id": "823fb36d471b0ef6060bc9363c89e12c", "patch_ids": ["fc452e68c97468e4711e1e83f06f17af"], "statement_hash": "2a2af3205a99361da43475c5da46b1c66376f789f13a1c2ee0f23624cbb849a4", "relations": [{"rule": 2, "type": "equivalent", "target": "695bd513323417fe3250f7a82dc60ff8", "evidence": {"same_day": true, "patch_ids": ["fc452e68c97468e4711e1e83f06f17af"], "statement_hash": "2a2af3205a99361da43475c5da46b1c66376f789f13a1c2ee0f23624cbb849a4"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "695bd513323417fe3250f7a82dc60ff8", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复空闲 slotsync 工作进程产生过多日志输出的问题", "evidence": {"same_day": true, "patch_ids": ["fc452e68c97468e4711e1e83f06f17af"], "statement_hash": "2a2af3205a99361da43475c5da46b1c66376f789f13a1c2ee0f23624cbb849a4"}, "url": "/docs/compare/?release=18.4#18.4-59479740d5b1c42c", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}]}, {"id": "17.10-c10485892a0cc1b6", "cves": [], "html": "确保即使发生错误后，tuplestore 数据结构在内部也保持一致（Tom Lane）§
\n此前代码对此不够谨慎，这在大多数时候没有问题，但对于支撑 WITH HOLD 游标的 tuplestore 则有问题。在 v15 及更早版本中，这会导致容易重现的崩溃；目前尚不知道较新分支是否易受影响，但最好在所有分支中保持一致性。
修复 pg_stat_replication 中过早报告 NULL 延迟的问题（Shinya Kato）§
即使复制活动正在发生，延迟列也经常读作 NULL。
", "text": "修复 pg_stat_replication 中过早报告 NULL 延迟的问题（Shinya Kato）§ 即使复制活动正在发生，延迟列也经常读作 NULL。", "title": "修复 pg_stat_replication 中过早报告 NULL 延迟的问题", "commits": ["fdce5de55"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "936e36df3b44ffa2909dacd5d2f1bf73c91e0d1cbccb740c7a29cd9171819085", "section_path": ["变更"], "commit_groups": [["246c296f0", "98e96e579", "bf7ecf353", "eef1ba704", "f42105001", "fdce5de55"]], "identity_text": "Fix premature NULL lag reporting in pg_stat_replication (Shinya Kato) The lag columns frequently read as NULL even while replication activity was happening.", "commit_aliases": ["246c296f0", "98e96e579", "bf7ecf353", "eef1ba704", "f42105001", "fdce5de55"], "source_commits": ["fdce5de55"], "source_entry_id": "17.10/changes/040", "db_id": "5851dbb38f0eb77c8633d934a8c81fbc", "patch_ids": ["7704c6b94c92f272f76de1954c53eb5b"], "statement_hash": "bcd10a6c1d43f2b961925210744b26778b15baa46851120a0a4df4d6146ed920", "relations": [{"rule": 2, "type": "equivalent", "target": "65eb4d53da31a74e1d2b5ae72a4b3f98", "evidence": {"same_day": true, "patch_ids": ["7704c6b94c92f272f76de1954c53eb5b"], "statement_hash": "bcd10a6c1d43f2b961925210744b26778b15baa46851120a0a4df4d6146ed920"}}, {"rule": 2, "type": "equivalent", "target": "8f5d9efb9934b105d69fddf797f34e0b", "evidence": {"same_day": true, "patch_ids": ["7704c6b94c92f272f76de1954c53eb5b"], "statement_hash": "bcd10a6c1d43f2b961925210744b26778b15baa46851120a0a4df4d6146ed920"}}, {"rule": 2, "type": "equivalent", "target": "915ec8a085b4d90eb64720a431768f9b", "evidence": {"same_day": true, "patch_ids": ["7704c6b94c92f272f76de1954c53eb5b"], "statement_hash": "bcd10a6c1d43f2b961925210744b26778b15baa46851120a0a4df4d6146ed920"}}, {"rule": 2, "type": "equivalent", "target": "bf6218705be170d40b881423fbe0391f", "evidence": {"same_day": true, "patch_ids": ["7704c6b94c92f272f76de1954c53eb5b"], "statement_hash": "bcd10a6c1d43f2b961925210744b26778b15baa46851120a0a4df4d6146ed920"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "bf6218705be170d40b881423fbe0391f", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复 pg_stat_replication 中过早报告 NULL 延迟的问题", "evidence": {"same_day": true, "patch_ids": ["7704c6b94c92f272f76de1954c53eb5b"], "statement_hash": "bcd10a6c1d43f2b961925210744b26778b15baa46851120a0a4df4d6146ed920"}, "url": "/docs/compare/?release=18.4#18.4-8789ffc8666b33f9", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "65eb4d53da31a74e1d2b5ae72a4b3f98", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复 pg_stat_replication 中过早报告 NULL 延迟的问题", "evidence": {"same_day": true, "patch_ids": ["7704c6b94c92f272f76de1954c53eb5b"], "statement_hash": "bcd10a6c1d43f2b961925210744b26778b15baa46851120a0a4df4d6146ed920"}, "url": "/docs/compare/?release=16.14#16.14-f26d51c0546fa772", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "915ec8a085b4d90eb64720a431768f9b", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复 pg_stat_replication 中过早报告 NULL 延迟的问题", "evidence": {"same_day": true, "patch_ids": ["7704c6b94c92f272f76de1954c53eb5b"], "statement_hash": "bcd10a6c1d43f2b961925210744b26778b15baa46851120a0a4df4d6146ed920"}, "url": "/docs/compare/?release=15.18#15.18-fea30dc889e7ae5f", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "8f5d9efb9934b105d69fddf797f34e0b", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "修复 pg_stat_replication 中过早报告 NULL 延迟的问题", "evidence": {"same_day": true, "patch_ids": ["7704c6b94c92f272f76de1954c53eb5b"], "statement_hash": "bcd10a6c1d43f2b961925210744b26778b15baa46851120a0a4df4d6146ed920"}, "url": "/docs/compare/?release=14.23#14.23-bcb3e939d63d9120", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-81df83553a9e021a", "cves": [], "html": "避免处理不记录 WAL 的 GiST 索引时罕见的刷盘失败（Tomas Vondra）§
\n不记录 WAL 的 GiST 索引有时仍可能产生 “xlog flush request n/nnnn is not satisfied” 错误，原因是错误地选择了一个“假 LSN” 来表示插入点。
修复对非常规大小的段所需 DSA 页面映射大小的低估问题（Paul Bunn）§
\n此误算导致越界访问，并进而造成服务器崩溃。
", "text": "修复对非常规大小的段所需 DSA 页面映射大小的低估问题（Paul Bunn）§ 此误算导致越界访问，并进而造成服务器崩溃。", "title": "修复对非常规大小的段所需 DSA 页面映射大小的低估问题", "commits": ["2543b9ea9"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "61684a91bb1434333b16a9febd67c0487557bddb01b1c33c7f68a1cfe1fbb7a5", "section_path": ["变更"], "commit_groups": [["0af5e64e9", "2543b9ea9", "46c93b705", "4da2afd01", "a0f38604d", "eb11d7a91"]], "identity_text": "Fix underestimate of required size of DSA page maps for odd-size segments (Paul Bunn) This miscalculation led to out-of-bounds accesses and hence server crashes.", "commit_aliases": ["0af5e64e9", "2543b9ea9", "46c93b705", "4da2afd01", "a0f38604d", "eb11d7a91"], "source_commits": ["2543b9ea9"], "source_entry_id": "17.10/changes/042", "db_id": "feb50a4056ee0c9561081c3bd1a5fd94", "patch_ids": ["51396541ad50c671641591d5c032f25c"], "statement_hash": "b77594e65c1a09137763e6965f04edfa079771b8c115cc6bbea72232ff10e97e", "relations": [{"rule": 2, "type": "equivalent", "target": "132eccad33a03f9808709ff243633e21", "evidence": {"same_day": true, "patch_ids": ["51396541ad50c671641591d5c032f25c"], "statement_hash": "b77594e65c1a09137763e6965f04edfa079771b8c115cc6bbea72232ff10e97e"}}, {"rule": 2, "type": "equivalent", "target": "6c9b24cf6c2959b6e084b0f1468cc147", "evidence": {"same_day": true, "patch_ids": ["51396541ad50c671641591d5c032f25c"], "statement_hash": "b77594e65c1a09137763e6965f04edfa079771b8c115cc6bbea72232ff10e97e"}}, {"rule": 2, "type": "equivalent", "target": "c0162fa5c8bd731ee869a6a910d5a618", "evidence": {"same_day": true, "patch_ids": ["51396541ad50c671641591d5c032f25c"], "statement_hash": "b77594e65c1a09137763e6965f04edfa079771b8c115cc6bbea72232ff10e97e"}}, {"rule": 2, "type": "equivalent", "target": "d358ff7daadf000c76becae39274dcc8", "evidence": {"same_day": true, "patch_ids": ["51396541ad50c671641591d5c032f25c"], "statement_hash": "b77594e65c1a09137763e6965f04edfa079771b8c115cc6bbea72232ff10e97e"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "c0162fa5c8bd731ee869a6a910d5a618", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复对非常规大小的段所需 DSA 页面映射大小的低估问题", "evidence": {"same_day": true, "patch_ids": ["51396541ad50c671641591d5c032f25c"], "statement_hash": "b77594e65c1a09137763e6965f04edfa079771b8c115cc6bbea72232ff10e97e"}, "url": "/docs/compare/?release=18.4#18.4-6a31304d211cadfa", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "6c9b24cf6c2959b6e084b0f1468cc147", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复对非常规大小的段所需 DSA 页面映射大小的低估问题", "evidence": {"same_day": true, "patch_ids": ["51396541ad50c671641591d5c032f25c"], "statement_hash": "b77594e65c1a09137763e6965f04edfa079771b8c115cc6bbea72232ff10e97e"}, "url": "/docs/compare/?release=16.14#16.14-8bb5b1022d86c764", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "132eccad33a03f9808709ff243633e21", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复对非常规大小的段所需 DSA 页面映射大小的低估问题", "evidence": {"same_day": true, "patch_ids": ["51396541ad50c671641591d5c032f25c"], "statement_hash": "b77594e65c1a09137763e6965f04edfa079771b8c115cc6bbea72232ff10e97e"}, "url": "/docs/compare/?release=15.18#15.18-1a4308d681901087", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "d358ff7daadf000c76becae39274dcc8", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "修复对非常规大小的段所需 DSA 页面映射大小的低估问题", "evidence": {"same_day": true, "patch_ids": ["51396541ad50c671641591d5c032f25c"], "statement_hash": "b77594e65c1a09137763e6965f04edfa079771b8c115cc6bbea72232ff10e97e"}, "url": "/docs/compare/?release=14.23#14.23-11bc13dcca69d74b", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-cfa55dcb71d57c12", "cves": [], "html": "修复共享内存中 oldest-multixact 数组的索引（Yura Sokolov）§ §
\n这一错误可能导致一个已预备但尚未提交的事务所持有的行锁在其他会话看来不可见，或者导致该事务结果出现其他可见性问题。在 max_connections 设置非常小时，也可能发生内存踩踏。
", "text": "修复共享内存中 oldest-multixact 数组的索引（Yura Sokolov）§ § 这一错误可能导致一个已预备但尚未提交的事务所持有的行锁在其他会话看来不可见，或者导致该事务结果出现其他可见性问题。在 max_connections 设置非常小时，也可能发生内存踩踏。", "title": "修复共享内存中 oldest-multixact 数组的索引", "commits": ["969576dab", "dcd9c06a4"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "676444ac6c37147ba6d109f63e56a7ebc3f8a2f2ecd35fc1f603f44408cc766f", "section_path": ["变更"], "commit_groups": [["0a50ef094", "ccae90abd", "dcd9c06a4"], ["969576dab", "fa3b328e6", "fe08113ae"]], "identity_text": "Fix indexing of oldest-multixact arrays in shared memory (Yura Sokolov) This mistake could cause a prepared-but-not-yet-committed transaction's row locks to appear invisible to other sessions, or other visibility issues for the results of such a transaction. With a very small max_connections setting, memory stomps were also possible.", "commit_aliases": ["0a50ef094", "969576dab", "ccae90abd", "dcd9c06a4", "fa3b328e6", "fe08113ae"], "source_commits": ["969576dab", "dcd9c06a4"], "source_entry_id": "17.10/changes/043", "db_id": "440f1367bcb7bd58aa010daa1ed5105b", "patch_ids": ["9f4b51556384588dee12dabbaa9a5068", "c295c29115de3784af1baea84dd9ddfc"], "statement_hash": "e8c1956b7f46db612ff4602b13580b3f19536358ea0d47bc73cf87584e556dac", "relations": [{"rule": 2, "type": "equivalent", "target": "257e52645de77966b485d158daff2049", "evidence": {"same_day": true, "patch_ids": ["9f4b51556384588dee12dabbaa9a5068", "c295c29115de3784af1baea84dd9ddfc"], "statement_hash": "e8c1956b7f46db612ff4602b13580b3f19536358ea0d47bc73cf87584e556dac"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "257e52645de77966b485d158daff2049", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复共享内存中 oldest-multixact 数组的索引", "evidence": {"same_day": true, "patch_ids": ["9f4b51556384588dee12dabbaa9a5068", "c295c29115de3784af1baea84dd9ddfc"], "statement_hash": "e8c1956b7f46db612ff4602b13580b3f19536358ea0d47bc73cf87584e556dac"}, "url": "/docs/compare/?release=18.4#18.4-d3cfc20eaff1d676", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}]}, {"id": "17.10-55b28f30732d7db3", "cves": [], "html": "修复处理扩展数据类型表达式上的扩展统计信息时可能发生的服务器崩溃（Michael Paquier）§
\n如果该数据类型的 typanalyze 函数没有计算任何有用的统计信息，就可能发生 NULL 指针解引用。核心内置的 typanalyze 函数都不会这样表现，但扩展可能会如此。
", "text": "修复处理扩展数据类型表达式上的扩展统计信息时可能发生的服务器崩溃（Michael Paquier）§ 如果该数据类型的 typanalyze 函数没有计算任何有用的统计信息，就可能发生 NULL 指针解引用。核心内置的 typanalyze 函数都不会这样表现，但扩展可能会如此。", "title": "修复处理扩展数据类型表达式上的扩展统计信息时可能发生的服务器崩溃", "commits": ["530b6b02f"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "a50b7d8142e111ecd2bc93acc53477635dab3f7a0640b55bb25baa2683e51c8d", "section_path": ["变更"], "commit_groups": [["038c7d4a3", "04745ba9c", "3b7a6fa15", "530b6b02f", "83671c0da", "f033abc6c"]], "identity_text": "Fix possible server crash when processing extended statistics on expressions of extension data types (Michael Paquier) NULL pointer dereferences were possible if the data type's typanalyze function does not compute any useful statistics. No in-core typanalyze function behaves that way, but extensions could.", "commit_aliases": ["038c7d4a3", "04745ba9c", "3b7a6fa15", "530b6b02f", "83671c0da", "f033abc6c"], "source_commits": ["530b6b02f"], "source_entry_id": "17.10/changes/044", "db_id": "80939c27c6a18cbd33af67b54738ffbb", "patch_ids": ["57808080730ecfb17eedfbeb01bceb92"], "statement_hash": "0b6cefc1fdc0c8f91af788bfe5a8b6d0b6b4059af142c8779ab898a1590a8d8a", "relations": [{"rule": 2, "type": "equivalent", "target": "11bb9497f3c67aace227015bc936b98e", "evidence": {"same_day": true, "patch_ids": ["57808080730ecfb17eedfbeb01bceb92"], "statement_hash": "0b6cefc1fdc0c8f91af788bfe5a8b6d0b6b4059af142c8779ab898a1590a8d8a"}}, {"rule": 2, "type": "equivalent", "target": "1c1afd4ac22d6baac4a29928c824292c", "evidence": {"same_day": true, "patch_ids": ["57808080730ecfb17eedfbeb01bceb92"], "statement_hash": "0b6cefc1fdc0c8f91af788bfe5a8b6d0b6b4059af142c8779ab898a1590a8d8a"}}, {"rule": 2, "type": "equivalent", "target": "7060172e893faabd38e47a052f25c75c", "evidence": {"same_day": true, "patch_ids": ["57808080730ecfb17eedfbeb01bceb92"], "statement_hash": "0b6cefc1fdc0c8f91af788bfe5a8b6d0b6b4059af142c8779ab898a1590a8d8a"}}, {"rule": 2, "type": "equivalent", "target": "e3fcd13894196d38b7fdafd82a39872b", "evidence": {"same_day": true, "patch_ids": ["57808080730ecfb17eedfbeb01bceb92"], "statement_hash": "0b6cefc1fdc0c8f91af788bfe5a8b6d0b6b4059af142c8779ab898a1590a8d8a"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "e3fcd13894196d38b7fdafd82a39872b", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复处理扩展数据类型表达式上的扩展统计信息时可能发生的服务器崩溃", "evidence": {"same_day": true, "patch_ids": ["57808080730ecfb17eedfbeb01bceb92"], "statement_hash": "0b6cefc1fdc0c8f91af788bfe5a8b6d0b6b4059af142c8779ab898a1590a8d8a"}, "url": "/docs/compare/?release=18.4#18.4-d17ff570c253e2a4", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "1c1afd4ac22d6baac4a29928c824292c", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复处理扩展数据类型表达式上的扩展统计信息时可能发生的服务器崩溃", "evidence": {"same_day": true, "patch_ids": ["57808080730ecfb17eedfbeb01bceb92"], "statement_hash": "0b6cefc1fdc0c8f91af788bfe5a8b6d0b6b4059af142c8779ab898a1590a8d8a"}, "url": "/docs/compare/?release=16.14#16.14-0be3354f36793154", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "7060172e893faabd38e47a052f25c75c", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复处理扩展数据类型表达式上的扩展统计信息时可能发生的服务器崩溃", "evidence": {"same_day": true, "patch_ids": ["57808080730ecfb17eedfbeb01bceb92"], "statement_hash": "0b6cefc1fdc0c8f91af788bfe5a8b6d0b6b4059af142c8779ab898a1590a8d8a"}, "url": "/docs/compare/?release=15.18#15.18-66aee329c6813e82", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "11bb9497f3c67aace227015bc936b98e", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "修复处理扩展数据类型表达式上的扩展统计信息时可能发生的服务器崩溃", "evidence": {"same_day": true, "patch_ids": ["57808080730ecfb17eedfbeb01bceb92"], "statement_hash": "0b6cefc1fdc0c8f91af788bfe5a8b6d0b6b4059af142c8779ab898a1590a8d8a"}, "url": "/docs/compare/?release=14.23#14.23-4ba256fc57391391", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-e802516615666acf", "cves": [], "html": "修复基于 ICU 的字符串处理中轻微的内存泄漏（Jeff Davis）§
", "text": "修复基于 ICU 的字符串处理中轻微的内存泄漏（Jeff Davis）§", "title": "修复基于 ICU 的字符串处理中轻微的内存泄漏", "commits": ["4761f2eee"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "ba69d6b7d1f90c012ec84fd21898e70f572ec42d5e5b94ec3c9f8df012f9a826", "section_path": ["变更"], "commit_groups": [["4761f2eee", "4abf63c62", "a4515c9b4", "d942511f0"]], "identity_text": "Fix minor memory leaks in ICU-based string processing (Jeff Davis)", "commit_aliases": ["4761f2eee", "4abf63c62", "a4515c9b4", "d942511f0"], "source_commits": ["4761f2eee"], "source_entry_id": "17.10/changes/045", "db_id": "bd584e4f7982ffc4b076ab2f17b9df9c", "patch_ids": ["6d9d38d08dbad42448b9071321caaf61"], "statement_hash": "b7a1562c011305e92a0b8937cd9fca1c2e7a7555c23e50eef91b5ced9490aa97", "relations": [{"rule": 2, "type": "equivalent", "target": "50b72add33aaee1a9925c87cbf7716b3", "evidence": {"same_day": true, "patch_ids": ["6d9d38d08dbad42448b9071321caaf61"], "statement_hash": "b7a1562c011305e92a0b8937cd9fca1c2e7a7555c23e50eef91b5ced9490aa97"}}, {"rule": 2, "type": "equivalent", "target": "837bd67b8c3f6368b3c27a6551f80927", "evidence": {"same_day": true, "patch_ids": ["6d9d38d08dbad42448b9071321caaf61"], "statement_hash": "b7a1562c011305e92a0b8937cd9fca1c2e7a7555c23e50eef91b5ced9490aa97"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "837bd67b8c3f6368b3c27a6551f80927", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复基于 ICU 的字符串处理中轻微的内存泄漏", "evidence": {"same_day": true, "patch_ids": ["6d9d38d08dbad42448b9071321caaf61"], "statement_hash": "b7a1562c011305e92a0b8937cd9fca1c2e7a7555c23e50eef91b5ced9490aa97"}, "url": "/docs/compare/?release=18.4#18.4-d03de691fc9de456", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "50b72add33aaee1a9925c87cbf7716b3", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复基于 ICU 的字符串处理中轻微的内存泄漏", "evidence": {"same_day": true, "patch_ids": ["6d9d38d08dbad42448b9071321caaf61"], "statement_hash": "b7a1562c011305e92a0b8937cd9fca1c2e7a7555c23e50eef91b5ced9490aa97"}, "url": "/docs/compare/?release=16.14#16.14-9c6d58940b19e710", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}]}, {"id": "17.10-ae6a8b961252ec16", "cves": [], "html": "如果启动进程失败，在 postmaster 退出前正确关闭其他子进程（Ayush Tiwari）§
\n对此情况的处理依赖于一个早已过时的假定：启动进程运行时不存在其他 postmaster 子进程，因此可以立即退出 postmaster。孤立的子进程最终会注意到 postmaster 已死亡并自行退出，但更干净的关闭过程仍然是可取的。
", "text": "如果启动进程失败，在 postmaster 退出前正确关闭其他子进程（Ayush Tiwari）§ 对此情况的处理依赖于一个早已过时的假定：启动进程运行时不存在其他 postmaster 子进程，因此可以立即退出 postmaster。孤立的子进程最终会注意到 postmaster 已死亡并自行退出，但更干净的关闭过程仍然是可取的。", "title": "如果启动进程失败，在 postmaster 退出前正确关闭其他子进程", "commits": ["e381843cf"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "a71fbe38cda7e7697f7fe8e09dcb20abeeca36e994d2d2246215eac18ae908ff", "section_path": ["变更"], "commit_groups": [["23cebf672", "2d347f2cd", "9b43e6793", "affdb2dd5", "e381843cf"]], "identity_text": "If the startup process fails, properly shut down other child processes before exiting the postmaster (Ayush Tiwari) The handling of this situation relied on a long-obsolete assumption that no other postmaster children exist while the startup process is running, so that immediate postmaster exit is acceptable. Orphaned children would eventually notice the postmaster's death and exit on their own, but a cleaner shutdown procedure is desirable.", "commit_aliases": ["23cebf672", "2d347f2cd", "9b43e6793", "affdb2dd5", "e381843cf"], "source_commits": ["e381843cf"], "source_entry_id": "17.10/changes/046", "db_id": "1258e1d70ad8d20566f8bef565afb542", "patch_ids": ["336655f61a8e613f6d655ff5a808f10d"], "statement_hash": "cb4e5d59e127aafd8bb2c9e2c73437dd551d9591dd8c7309ec60a48a3299d4f5", "relations": [{"rule": 2, "type": "equivalent", "target": "2a31a83d114004ec62a45d4511e6eea8", "evidence": {"same_day": true, "patch_ids": ["336655f61a8e613f6d655ff5a808f10d"], "statement_hash": "cb4e5d59e127aafd8bb2c9e2c73437dd551d9591dd8c7309ec60a48a3299d4f5"}}, {"rule": 2, "type": "equivalent", "target": "35889e010982e213ace67b19129690cc", "evidence": {"same_day": true, "patch_ids": ["336655f61a8e613f6d655ff5a808f10d"], "statement_hash": "cb4e5d59e127aafd8bb2c9e2c73437dd551d9591dd8c7309ec60a48a3299d4f5"}}, {"rule": 2, "type": "equivalent", "target": "60187dd7a7a6b60a0c3449316b65aa78", "evidence": {"same_day": true, "patch_ids": ["336655f61a8e613f6d655ff5a808f10d"], "statement_hash": "cb4e5d59e127aafd8bb2c9e2c73437dd551d9591dd8c7309ec60a48a3299d4f5"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "60187dd7a7a6b60a0c3449316b65aa78", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "如果启动进程失败，在 postmaster 退出前正确关闭其他子进程", "evidence": {"same_day": true, "patch_ids": ["336655f61a8e613f6d655ff5a808f10d"], "statement_hash": "cb4e5d59e127aafd8bb2c9e2c73437dd551d9591dd8c7309ec60a48a3299d4f5"}, "url": "/docs/compare/?release=18.4#18.4-fbb8a60e8a0fb7fa", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "35889e010982e213ace67b19129690cc", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "如果启动进程失败，在 postmaster 退出前正确关闭其他子进程", "evidence": {"same_day": true, "patch_ids": ["336655f61a8e613f6d655ff5a808f10d"], "statement_hash": "cb4e5d59e127aafd8bb2c9e2c73437dd551d9591dd8c7309ec60a48a3299d4f5"}, "url": "/docs/compare/?release=16.14#16.14-0b7f6a3235e38857", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "2a31a83d114004ec62a45d4511e6eea8", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "如果启动进程失败，在 postmaster 退出前正确关闭其他子进程", "evidence": {"same_day": true, "patch_ids": ["336655f61a8e613f6d655ff5a808f10d"], "statement_hash": "cb4e5d59e127aafd8bb2c9e2c73437dd551d9591dd8c7309ec60a48a3299d4f5"}, "url": "/docs/compare/?release=15.18#15.18-59e230aa6a0adc1d", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}]}, {"id": "17.10-b851403e0c059925", "cves": [], "html": "修复检查点 WAL 重放与多事务 ID 创建之间的竞态条件（Heikki Linnakangas）§
\n跟随来自较旧小版本主库的 WAL 的备库，可能陷入反复崩溃和重启的循环，并抱怨 “could not access status of transaction”。
", "text": "修复检查点 WAL 重放与多事务 ID 创建之间的竞态条件（Heikki Linnakangas）§ 跟随来自较旧小版本主库的 WAL 的备库，可能陷入反复崩溃和重启的循环，并抱怨 “could not access status of transaction”。", "title": "修复检查点 WAL 重放与多事务 ID 创建之间的竞态条件", "commits": ["1ca385032"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "61979bfd660e0fa6770622b7a05714d887d0babcd41cb2c7a008ce624cc6cf4c", "section_path": ["变更"], "commit_groups": [["0852643e1", "1ca385032", "77dff5d93", "a5f412107", "e35e466f6"]], "identity_text": "Fix race condition between WAL replay of checkpoints and multixact ID creations (Heikki Linnakangas) A standby server following WAL from a primary of an older minor version could get into a crash-and-restart loop complaining about could not access status of transaction.", "commit_aliases": ["0852643e1", "1ca385032", "77dff5d93", "a5f412107", "e35e466f6"], "source_commits": ["1ca385032"], "source_entry_id": "17.10/changes/047", "db_id": "7656c6c266fb5f623679c473e6534cb4", "patch_ids": ["bc2293c8457ac75a2ee41b1da5cae860"], "statement_hash": "966d18f3bd64c03cfe6fcbf5ad572276df81e74e4f0e0228686357c47c7ba192", "relations": [{"rule": 2, "type": "equivalent", "target": "2dd877a931aebbb79cf02748fddc6985", "evidence": {"same_day": true, "patch_ids": ["bc2293c8457ac75a2ee41b1da5cae860"], "statement_hash": "966d18f3bd64c03cfe6fcbf5ad572276df81e74e4f0e0228686357c47c7ba192"}}, {"rule": 2, "type": "equivalent", "target": "61f30ae9ddadfa030207bdea7cb12e70", "evidence": {"same_day": true, "patch_ids": ["bc2293c8457ac75a2ee41b1da5cae860"], "statement_hash": "966d18f3bd64c03cfe6fcbf5ad572276df81e74e4f0e0228686357c47c7ba192"}}, {"rule": 2, "type": "equivalent", "target": "85b276d385b6533daa45fb10a83fcdc6", "evidence": {"same_day": true, "patch_ids": ["bc2293c8457ac75a2ee41b1da5cae860"], "statement_hash": "966d18f3bd64c03cfe6fcbf5ad572276df81e74e4f0e0228686357c47c7ba192"}}, {"rule": 2, "type": "equivalent", "target": "bdf695af62de33084d77c352623dcee3", "evidence": {"same_day": true, "patch_ids": ["bc2293c8457ac75a2ee41b1da5cae860"], "statement_hash": "966d18f3bd64c03cfe6fcbf5ad572276df81e74e4f0e0228686357c47c7ba192"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "2dd877a931aebbb79cf02748fddc6985", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复检查点 WAL 重放与多事务 ID 创建之间的竞态条件", "evidence": {"same_day": true, "patch_ids": ["bc2293c8457ac75a2ee41b1da5cae860"], "statement_hash": "966d18f3bd64c03cfe6fcbf5ad572276df81e74e4f0e0228686357c47c7ba192"}, "url": "/docs/compare/?release=18.4#18.4-b95009e302c19df6", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "bdf695af62de33084d77c352623dcee3", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复检查点 WAL 重放与多事务 ID 创建之间的竞态条件", "evidence": {"same_day": true, "patch_ids": ["bc2293c8457ac75a2ee41b1da5cae860"], "statement_hash": "966d18f3bd64c03cfe6fcbf5ad572276df81e74e4f0e0228686357c47c7ba192"}, "url": "/docs/compare/?release=16.14#16.14-b3cb622e85e826dc", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "85b276d385b6533daa45fb10a83fcdc6", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复检查点 WAL 重放与多事务 ID 创建之间的竞态条件", "evidence": {"same_day": true, "patch_ids": ["bc2293c8457ac75a2ee41b1da5cae860"], "statement_hash": "966d18f3bd64c03cfe6fcbf5ad572276df81e74e4f0e0228686357c47c7ba192"}, "url": "/docs/compare/?release=15.18#15.18-729165d8f77b8c3e", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "61f30ae9ddadfa030207bdea7cb12e70", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "修复检查点 WAL 重放与多事务 ID 创建之间的竞态条件", "evidence": {"same_day": true, "patch_ids": ["bc2293c8457ac75a2ee41b1da5cae860"], "statement_hash": "966d18f3bd64c03cfe6fcbf5ad572276df81e74e4f0e0228686357c47c7ba192"}, "url": "/docs/compare/?release=14.23#14.23-c6d1cb4b3f13c969", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-3ccf02812257acd0", "cves": [], "html": "防止 WAL 发送进程关闭时无限期等待（Anthonin Bonnefoy）§ §
\n在发布逻辑复制数据的集簇关闭时，WAL 发送进程会等待所有待处理 WAL 被写出。但它没有正确请求执行此操作，因此在某些情况下这可能变成无限期等待。
", "text": "防止 WAL 发送进程关闭时无限期等待（Anthonin Bonnefoy）§ § 在发布逻辑复制数据的集簇关闭时，WAL 发送进程会等待所有待处理 WAL 被写出。但它没有正确请求执行此操作，因此在某些情况下这可能变成无限期等待。", "title": "防止 WAL 发送进程关闭时无限期等待", "commits": ["8ee536c89", "bbbc0888b"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "001a22a95454b9347ed8a035a05a463fad268f8c978b0ec43c8e56d5a65cf69f", "section_path": ["变更"], "commit_groups": [["3bf6f22ce", "3eb2fecdb", "42734f296", "6eedb2a5f", "82935467a", "bbbc0888b"], ["8ee536c89", "980498138", "d927b4bd9", "da21ecf57", "f15471464", "fa9f2e317"]], "identity_text": "Prevent indefinite wait in shutdown of a walsender process (Anthonin Bonnefoy) At shutdown of a cluster that is publishing logical replication data, the walsender waits for all pending WAL to be written out. But it did not correctly request that to happen, so that in some cases this could become an indefinite wait.", "commit_aliases": ["3bf6f22ce", "3eb2fecdb", "42734f296", "6eedb2a5f", "82935467a", "8ee536c89", "980498138", "bbbc0888b", "d927b4bd9", "da21ecf57", "f15471464", "fa9f2e317"], "source_commits": ["8ee536c89", "bbbc0888b"], "source_entry_id": "17.10/changes/048", "db_id": "a7b932fcfa614135f399c6d16936a3ee", "patch_ids": ["472a5975808282fa6bd581c79c39f9ea", "76b367fc789f138e1eeabf0d364392af"], "statement_hash": "82e19a553da5241f427aaa49312a19ba9fb5200bffa8a85355d78e7c64e1a530", "relations": [{"rule": 2, "type": "equivalent", "target": "45420fcd1c11fe55a25c2e6f51f48363", "evidence": {"same_day": true, "patch_ids": ["472a5975808282fa6bd581c79c39f9ea", "76b367fc789f138e1eeabf0d364392af"], "statement_hash": "82e19a553da5241f427aaa49312a19ba9fb5200bffa8a85355d78e7c64e1a530"}}, {"rule": 2, "type": "equivalent", "target": "58a67f2d4d7fff6342315f22db6849a6", "evidence": {"same_day": true, "patch_ids": ["472a5975808282fa6bd581c79c39f9ea", "76b367fc789f138e1eeabf0d364392af"], "statement_hash": "82e19a553da5241f427aaa49312a19ba9fb5200bffa8a85355d78e7c64e1a530"}}, {"rule": 2, "type": "equivalent", "target": "dd2e9c6da8c31f99c801d2fd16385b3c", "evidence": {"same_day": true, "patch_ids": ["472a5975808282fa6bd581c79c39f9ea", "76b367fc789f138e1eeabf0d364392af"], "statement_hash": "82e19a553da5241f427aaa49312a19ba9fb5200bffa8a85355d78e7c64e1a530"}}, {"rule": 2, "type": "equivalent", "target": "f5dd9be5d5ba1e08ae8e1a43cf926484", "evidence": {"same_day": true, "patch_ids": ["472a5975808282fa6bd581c79c39f9ea", "76b367fc789f138e1eeabf0d364392af"], "statement_hash": "82e19a553da5241f427aaa49312a19ba9fb5200bffa8a85355d78e7c64e1a530"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "dd2e9c6da8c31f99c801d2fd16385b3c", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "防止 WAL 发送进程关闭时无限期等待", "evidence": {"same_day": true, "patch_ids": ["472a5975808282fa6bd581c79c39f9ea", "76b367fc789f138e1eeabf0d364392af"], "statement_hash": "82e19a553da5241f427aaa49312a19ba9fb5200bffa8a85355d78e7c64e1a530"}, "url": "/docs/compare/?release=18.4#18.4-a9cb192589c0f7aa", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "58a67f2d4d7fff6342315f22db6849a6", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "防止 WAL 发送进程关闭时无限期等待", "evidence": {"same_day": true, "patch_ids": ["472a5975808282fa6bd581c79c39f9ea", "76b367fc789f138e1eeabf0d364392af"], "statement_hash": "82e19a553da5241f427aaa49312a19ba9fb5200bffa8a85355d78e7c64e1a530"}, "url": "/docs/compare/?release=16.14#16.14-817a820bc49c0dcf", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "45420fcd1c11fe55a25c2e6f51f48363", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "防止 WAL 发送进程关闭时无限期等待", "evidence": {"same_day": true, "patch_ids": ["472a5975808282fa6bd581c79c39f9ea", "76b367fc789f138e1eeabf0d364392af"], "statement_hash": "82e19a553da5241f427aaa49312a19ba9fb5200bffa8a85355d78e7c64e1a530"}, "url": "/docs/compare/?release=15.18#15.18-1a0fb49c7d011cf8", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "f5dd9be5d5ba1e08ae8e1a43cf926484", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "防止 WAL 发送进程关闭时无限期等待", "evidence": {"same_day": true, "patch_ids": ["472a5975808282fa6bd581c79c39f9ea", "76b367fc789f138e1eeabf0d364392af"], "statement_hash": "82e19a553da5241f427aaa49312a19ba9fb5200bffa8a85355d78e7c64e1a530"}, "url": "/docs/compare/?release=14.23#14.23-b352d254dd3297f4", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-fe407982706e6121", "cves": [], "html": "确保恢复期间对表空闲空间映射的更改会被持久化（Alexey Makhmutov）§
\n此前，在重放应当改变空闲空间映射的操作时，WAL 重放确实会更新该映射；但如果启用了校验和，映射页缓冲区不会被标记为脏，因此这些更改可能永远不会被写出。在备库上，随着时间推移，这会导致映射与表的实际内容严重不符。虽然该映射只作为提示使用，但在备库被提升为活跃服务器后，直到大部分映射被更新修复之前，这种情况可能在一段时间内造成显著性能下降。
", "text": "确保恢复期间对表空闲空间映射的更改会被持久化（Alexey Makhmutov）§ 此前，在重放应当改变空闲空间映射的操作时，WAL 重放确实会更新该映射；但如果启用了校验和，映射页缓冲区不会被标记为脏，因此这些更改可能永远不会被写出。在备库上，随着时间推移，这会导致映射与表的实际内容严重不符。虽然该映射只作为提示使用，但在备库被提升为活跃服务器后，直到大部分映射被更新修复之前，这种情况可能在一段时间内造成显著性能下降。", "title": "确保恢复期间对表空闲空间映射的更改会被持久化", "commits": ["1cf010f21"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "904dff0aac615f433ce1cbec4b7b1f9fe8c7392f99b23ae5c483cd4fcb851e95", "section_path": ["变更"], "commit_groups": [["1cf010f21", "54537de35", "ac3b97db3", "c06d1a4ba", "ca259b084", "f5d1038d9"]], "identity_text": "Ensure that changes to tables' free space maps are persisted during recovery (Alexey Makhmutov) Previously, while WAL replay did update the free space map while replaying operations that should change it, the map page buffer did not get marked dirty if checksums are enabled, so that the changes might never get written out. On a standby server, over time this would result in a map wildly at variance with the table's actual contents. While the map is only used as a hint, this condition could cause significant performance degradation for some period of time after the standby server is promoted to be active, until most of the map has been repaired by updates.", "commit_aliases": ["1cf010f21", "54537de35", "ac3b97db3", "c06d1a4ba", "ca259b084", "f5d1038d9"], "source_commits": ["1cf010f21"], "source_entry_id": "17.10/changes/049", "db_id": "d0b2b7eb40b300341a738f0c8f9b9486", "patch_ids": ["290b85a9a01972ea333ff078f1b803bd"], "statement_hash": "94dbd19b3ba5c2d1d6d0c3e547d4c2b99593a3f783f7d830b8bd54b62553c5ba", "relations": [{"rule": 2, "type": "equivalent", "target": "0a850a82a0e101c371b76446a16834eb", "evidence": {"same_day": true, "patch_ids": ["290b85a9a01972ea333ff078f1b803bd"], "statement_hash": "94dbd19b3ba5c2d1d6d0c3e547d4c2b99593a3f783f7d830b8bd54b62553c5ba"}}, {"rule": 2, "type": "equivalent", "target": "0ab544ccf54b9ef9d9a67d11e0edd7e6", "evidence": {"same_day": true, "patch_ids": ["290b85a9a01972ea333ff078f1b803bd"], "statement_hash": "94dbd19b3ba5c2d1d6d0c3e547d4c2b99593a3f783f7d830b8bd54b62553c5ba"}}, {"rule": 2, "type": "equivalent", "target": "5d55832b6f7b480606ba52039c22d06e", "evidence": {"same_day": true, "patch_ids": ["290b85a9a01972ea333ff078f1b803bd"], "statement_hash": "94dbd19b3ba5c2d1d6d0c3e547d4c2b99593a3f783f7d830b8bd54b62553c5ba"}}, {"rule": 2, "type": "equivalent", "target": "ef79709e772e43cd7f13cd40fd54ce08", "evidence": {"same_day": true, "patch_ids": ["290b85a9a01972ea333ff078f1b803bd"], "statement_hash": "94dbd19b3ba5c2d1d6d0c3e547d4c2b99593a3f783f7d830b8bd54b62553c5ba"}}], "version": "17.10", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "0ab544ccf54b9ef9d9a67d11e0edd7e6", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "确保恢复期间对表空闲空间映射的更改会被持久化", "evidence": {"same_day": true, "patch_ids": ["290b85a9a01972ea333ff078f1b803bd"], "statement_hash": "94dbd19b3ba5c2d1d6d0c3e547d4c2b99593a3f783f7d830b8bd54b62553c5ba"}, "url": "/docs/compare/?release=18.4#18.4-97e2910c41fa9a19", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "ef79709e772e43cd7f13cd40fd54ce08", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "确保恢复期间对表空闲空间映射的更改会被持久化", "evidence": {"same_day": true, "patch_ids": ["290b85a9a01972ea333ff078f1b803bd"], "statement_hash": "94dbd19b3ba5c2d1d6d0c3e547d4c2b99593a3f783f7d830b8bd54b62553c5ba"}, "url": "/docs/compare/?release=16.14#16.14-8125cf51d6ed071a", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "0a850a82a0e101c371b76446a16834eb", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "确保恢复期间对表空闲空间映射的更改会被持久化", "evidence": {"same_day": true, "patch_ids": ["290b85a9a01972ea333ff078f1b803bd"], "statement_hash": "94dbd19b3ba5c2d1d6d0c3e547d4c2b99593a3f783f7d830b8bd54b62553c5ba"}, "url": "/docs/compare/?release=15.18#15.18-c1ccf41821cc2c15", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "5d55832b6f7b480606ba52039c22d06e", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "确保恢复期间对表空闲空间映射的更改会被持久化", "evidence": {"same_day": true, "patch_ids": ["290b85a9a01972ea333ff078f1b803bd"], "statement_hash": "94dbd19b3ba5c2d1d6d0c3e547d4c2b99593a3f783f7d830b8bd54b62553c5ba"}, "url": "/docs/compare/?release=14.23#14.23-01e5d1d4b9c66a74", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-4e8f75e7518f8860", "cves": [], "html": "修复某些 ecpg 函数在没有已建立连接的情况下被调用时的崩溃（Shruthi Gowda）§
", "text": "修复某些 ecpg 函数在没有已建立连接的情况下被调用时的崩溃（Shruthi Gowda）§", "title": "修复某些 ecpg 函数在没有已建立连接的情况下被调用时的崩溃", "commits": ["5d67549d9"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "ebf95698cce6b4a2cc0ef14585389a7e9fa1c7e602f0f0da443d3e6219a4ae23", "section_path": ["变更"], "commit_groups": [["5d67549d9", "6916f4410", "7e4c871f4", "c34a280c8", "e2688ea5e", "f0e3f9732"]], "identity_text": "Fix crashes in some ecpg functions when called without any established connection (Shruthi Gowda)", "commit_aliases": ["5d67549d9", "6916f4410", "7e4c871f4", "c34a280c8", "e2688ea5e", "f0e3f9732"], "source_commits": ["5d67549d9"], "source_entry_id": "17.10/changes/050", "db_id": "bdf9527e3b31fa7d5ae8f9823d072d3d", "patch_ids": ["c7a6bafc62f4feae4e980b1e35da2b80"], "statement_hash": "d082bcf56e345df427e58be27130fd3aa6a1679e210b9c2dac559e63adb7e00a", "relations": [{"rule": 2, "type": "equivalent", "target": "7907242716f81b2600bf11b638097726", "evidence": {"same_day": true, "patch_ids": ["c7a6bafc62f4feae4e980b1e35da2b80"], "statement_hash": "d082bcf56e345df427e58be27130fd3aa6a1679e210b9c2dac559e63adb7e00a"}}, {"rule": 2, "type": "equivalent", "target": "80c1fd60cd9f0d7c266d99b227c860c1", "evidence": {"same_day": true, "patch_ids": ["c7a6bafc62f4feae4e980b1e35da2b80"], "statement_hash": "d082bcf56e345df427e58be27130fd3aa6a1679e210b9c2dac559e63adb7e00a"}}, {"rule": 2, "type": "equivalent", "target": "c0c7dfbc8d8c6bcae16ae7205d190917", "evidence": {"same_day": true, "patch_ids": ["c7a6bafc62f4feae4e980b1e35da2b80"], "statement_hash": "d082bcf56e345df427e58be27130fd3aa6a1679e210b9c2dac559e63adb7e00a"}}, {"rule": 2, "type": "equivalent", "target": "feefd46320fbb1731e40ec3e06323dbb", "evidence": {"same_day": true, "patch_ids": ["c7a6bafc62f4feae4e980b1e35da2b80"], "statement_hash": "d082bcf56e345df427e58be27130fd3aa6a1679e210b9c2dac559e63adb7e00a"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "c0c7dfbc8d8c6bcae16ae7205d190917", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复某些 ecpg 函数在没有已建立连接的情况下被调用时的崩溃", "evidence": {"same_day": true, "patch_ids": ["c7a6bafc62f4feae4e980b1e35da2b80"], "statement_hash": "d082bcf56e345df427e58be27130fd3aa6a1679e210b9c2dac559e63adb7e00a"}, "url": "/docs/compare/?release=18.4#18.4-7aa817666dd07903", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "7907242716f81b2600bf11b638097726", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复某些 ecpg 函数在没有已建立连接的情况下被调用时的崩溃", "evidence": {"same_day": true, "patch_ids": ["c7a6bafc62f4feae4e980b1e35da2b80"], "statement_hash": "d082bcf56e345df427e58be27130fd3aa6a1679e210b9c2dac559e63adb7e00a"}, "url": "/docs/compare/?release=16.14#16.14-44793a559af5c464", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "80c1fd60cd9f0d7c266d99b227c860c1", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复某些 ecpg 函数在没有已建立连接的情况下被调用时的崩溃", "evidence": {"same_day": true, "patch_ids": ["c7a6bafc62f4feae4e980b1e35da2b80"], "statement_hash": "d082bcf56e345df427e58be27130fd3aa6a1679e210b9c2dac559e63adb7e00a"}, "url": "/docs/compare/?release=15.18#15.18-c008865e32c5c2bd", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "feefd46320fbb1731e40ec3e06323dbb", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "修复某些 ecpg 函数在没有已建立连接的情况下被调用时的崩溃", "evidence": {"same_day": true, "patch_ids": ["c7a6bafc62f4feae4e980b1e35da2b80"], "statement_hash": "d082bcf56e345df427e58be27130fd3aa6a1679e210b9c2dac559e63adb7e00a"}, "url": "/docs/compare/?release=14.23#14.23-0d4724d0f0edd35d", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-608dfcd402c79cc9", "cves": [], "html": "修复备份解压和 tar 解析代码中的多项错误（Andrew Dunstan, Tom Lane, Chao Li）§ § §
\npg_basebackup 和 pg_verifybackup 中使用的解压和 tar 文件读取代码，会错误处理 tar 文件填充数据，在边界情况下可能损坏 LZ4 压缩数据，未检查一些异常错误条件，压缩/解压错误后未退出（导致级联错误报告），并且会泄漏内存。
", "text": "修复备份解压和 tar 解析代码中的多项错误（Andrew Dunstan, Tom Lane, Chao Li）§ § § pg_basebackup 和 pg_verifybackup 中使用的解压和 tar 文件读取代码，会错误处理 tar 文件填充数据，在边界情况下可能损坏 LZ4 压缩数据，未检查一些异常错误条件，压缩/解压错误后未退出（导致级联错误报告），并且会泄漏内存。", "title": "修复备份解压和 tar 解析代码中的多项错误", "commits": ["2640c5ba7", "8b198b093", "f1298a4c2"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "e94f69be37df14faa58e45f7131f37ef653046ed6266eac12ba6af6358301087", "section_path": ["变更"], "commit_groups": [["01d58d7e3", "1590723f0", "5095f3f4a", "d3bb7841b", "f1298a4c2"], ["2640c5ba7", "415cc943f", "4548e8746", "78dc9a808", "c70f6dc6b"], ["8b198b093", "9a42888a3", "a01a592b1", "ac0accafd", "cce939c71"]], "identity_text": "Fix assorted bugs in backup decompression and tar-parsing code (Andrew Dunstan, Tom Lane, Chao Li) The decompression and tar-file reading code used in pg_basebackup and pg_verifybackup mishandled tar-file padding data, could corrupt LZ4-compressed data in edge cases, failed to check for some unusual error conditions, failed to exit after compression/decompression errors (leading to cascading error reports), and leaked memory.", "commit_aliases": ["01d58d7e3", "1590723f0", "2640c5ba7", "415cc943f", "4548e8746", "5095f3f4a", "78dc9a808", "8b198b093", "9a42888a3", "a01a592b1", "ac0accafd", "c70f6dc6b", "cce939c71", "d3bb7841b", "f1298a4c2"], "source_commits": ["2640c5ba7", "8b198b093", "f1298a4c2"], "source_entry_id": "17.10/changes/051", "db_id": "bb9e0889e1a5adbf796ceaf3f2bba54a", "patch_ids": ["776d5a67dae4e90312023436a1a121e4", "a09bdaf76ce8e50fc1ed232d629496d1", "e611dc8dc55e1b7e28e7918dce0a5440"], "statement_hash": "14975a7d452ebd245adc06195cb53e296e97faf277282e3324587b2fcb641829", "relations": [{"rule": 2, "type": "equivalent", "target": "212902cab1e6fcee0bcc358f8fa492ef", "evidence": {"same_day": true, "patch_ids": ["776d5a67dae4e90312023436a1a121e4", "a09bdaf76ce8e50fc1ed232d629496d1", "e611dc8dc55e1b7e28e7918dce0a5440"], "statement_hash": "14975a7d452ebd245adc06195cb53e296e97faf277282e3324587b2fcb641829"}}, {"rule": 2, "type": "equivalent", "target": "2c1767e33fbd2c5b0ad76b3984a83f2d", "evidence": {"same_day": true, "patch_ids": ["776d5a67dae4e90312023436a1a121e4", "a09bdaf76ce8e50fc1ed232d629496d1", "e611dc8dc55e1b7e28e7918dce0a5440"], "statement_hash": "14975a7d452ebd245adc06195cb53e296e97faf277282e3324587b2fcb641829"}}, {"rule": 2, "type": "equivalent", "target": "34c5828614b646d0ee1635c733748049", "evidence": {"same_day": true, "patch_ids": ["776d5a67dae4e90312023436a1a121e4", "a09bdaf76ce8e50fc1ed232d629496d1", "e611dc8dc55e1b7e28e7918dce0a5440"], "statement_hash": "14975a7d452ebd245adc06195cb53e296e97faf277282e3324587b2fcb641829"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "2c1767e33fbd2c5b0ad76b3984a83f2d", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "修复备份解压和 tar 解析代码中的多项错误", "evidence": {"same_day": true, "patch_ids": ["776d5a67dae4e90312023436a1a121e4", "a09bdaf76ce8e50fc1ed232d629496d1", "e611dc8dc55e1b7e28e7918dce0a5440"], "statement_hash": "14975a7d452ebd245adc06195cb53e296e97faf277282e3324587b2fcb641829"}, "url": "/docs/compare/?release=18.4#18.4-3efb2ed246686260", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "212902cab1e6fcee0bcc358f8fa492ef", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "修复备份解压和 tar 解析代码中的多项错误", "evidence": {"same_day": true, "patch_ids": ["776d5a67dae4e90312023436a1a121e4", "a09bdaf76ce8e50fc1ed232d629496d1", "e611dc8dc55e1b7e28e7918dce0a5440"], "statement_hash": "14975a7d452ebd245adc06195cb53e296e97faf277282e3324587b2fcb641829"}, "url": "/docs/compare/?release=16.14#16.14-55b8ddc2c336b3f6", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "34c5828614b646d0ee1635c733748049", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "修复备份解压和 tar 解析代码中的多项错误", "evidence": {"same_day": true, "patch_ids": ["776d5a67dae4e90312023436a1a121e4", "a09bdaf76ce8e50fc1ed232d629496d1", "e611dc8dc55e1b7e28e7918dce0a5440"], "statement_hash": "14975a7d452ebd245adc06195cb53e296e97faf277282e3324587b2fcb641829"}, "url": "/docs/compare/?release=15.18#15.18-bb7e1f982c3d3fbb", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}]}, {"id": "17.10-abb35676e2703512", "cves": [], "html": "在 pg_dumpall 中，不要跳过具有悬挂授权者 OID 的角色 GRANT（Tom Lane）§
作为替代，像 v16 之前那样，通过发出不带任何 GRANTED BY 子句的 GRANT 来处理此类情况。这可以避免在可预见的情况下丢失授权，因为 v16 之前的服务器不会阻止删除授权者角色。继续针对缺失的授权者发出警告，但仅当源服务器为 v16 或更高版本时才这样做。
在 pg_upgrade 中，连接到较旧源服务器时注意使用正确的协议版本（Jacob Champion）§
\n在尝试从 2018 年以前的服务器升级时，这可能会造成问题。
", "text": "在 pg_upgrade 中，连接到较旧源服务器时注意使用正确的协议版本（Jacob Champion）§ 在尝试从 2018 年以前的服务器升级时，这可能会造成问题。", "title": "在 pg_upgrade 中，连接到较旧源服务器时注意使用正确的协议版本", "commits": ["ad7fc3f1f"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "485074045be8dbbd23ff097775c921fa4d4784ab798c5994ad12d8b0ec170f57", "section_path": ["变更"], "commit_groups": [["1b2773179", "a38ed212f", "a60a10338", "ad7fc3f1f", "c47744ede", "e726620d2"]], "identity_text": "In pg_upgrade, take care to use the correct protocol version when connecting to older source servers (Jacob Champion) This could be problematic when attempting to upgrade from a pre-2018 server.", "commit_aliases": ["1b2773179", "a38ed212f", "a60a10338", "ad7fc3f1f", "c47744ede", "e726620d2"], "source_commits": ["ad7fc3f1f"], "source_entry_id": "17.10/changes/053", "db_id": "29ee5ab07783ca431d54fc60a7a68ac6", "patch_ids": ["566020049e5cf4849b3dd9a9935a3aba"], "statement_hash": "6ea9a20b0f199ebe33de09e3497f924a73ae542c7d6af134326d0792ad8e087c", "relations": [{"rule": 2, "type": "equivalent", "target": "330e067151809e2b5b18a2ce11b3f4a8", "evidence": {"same_day": true, "patch_ids": ["566020049e5cf4849b3dd9a9935a3aba"], "statement_hash": "6ea9a20b0f199ebe33de09e3497f924a73ae542c7d6af134326d0792ad8e087c"}}, {"rule": 2, "type": "equivalent", "target": "6e7bc01c77ad0b62b80fffc021e1f621", "evidence": {"same_day": true, "patch_ids": ["566020049e5cf4849b3dd9a9935a3aba"], "statement_hash": "6ea9a20b0f199ebe33de09e3497f924a73ae542c7d6af134326d0792ad8e087c"}}, {"rule": 2, "type": "equivalent", "target": "b441ea3af4b648902039f9d5d3831785", "evidence": {"same_day": true, "patch_ids": ["566020049e5cf4849b3dd9a9935a3aba"], "statement_hash": "6ea9a20b0f199ebe33de09e3497f924a73ae542c7d6af134326d0792ad8e087c"}}, {"rule": 2, "type": "equivalent", "target": "df5ddbd0c6e2f445b5c35f53b9f74046", "evidence": {"same_day": true, "patch_ids": ["566020049e5cf4849b3dd9a9935a3aba"], "statement_hash": "6ea9a20b0f199ebe33de09e3497f924a73ae542c7d6af134326d0792ad8e087c"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "b441ea3af4b648902039f9d5d3831785", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "在 pg_upgrade 中，连接到较旧源服务器时注意使用正确的协议版本", "evidence": {"same_day": true, "patch_ids": ["566020049e5cf4849b3dd9a9935a3aba"], "statement_hash": "6ea9a20b0f199ebe33de09e3497f924a73ae542c7d6af134326d0792ad8e087c"}, "url": "/docs/compare/?release=18.4#18.4-f5f35647f03db5de", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "df5ddbd0c6e2f445b5c35f53b9f74046", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "在 pg_upgrade 中，连接到较旧源服务器时注意使用正确的协议版本", "evidence": {"same_day": true, "patch_ids": ["566020049e5cf4849b3dd9a9935a3aba"], "statement_hash": "6ea9a20b0f199ebe33de09e3497f924a73ae542c7d6af134326d0792ad8e087c"}, "url": "/docs/compare/?release=16.14#16.14-187bc32bd33adec9", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "330e067151809e2b5b18a2ce11b3f4a8", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "在 pg_upgrade 中，连接到较旧源服务器时注意使用正确的协议版本", "evidence": {"same_day": true, "patch_ids": ["566020049e5cf4849b3dd9a9935a3aba"], "statement_hash": "6ea9a20b0f199ebe33de09e3497f924a73ae542c7d6af134326d0792ad8e087c"}, "url": "/docs/compare/?release=15.18#15.18-e68e0ef207bfd5a9", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "6e7bc01c77ad0b62b80fffc021e1f621", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "在 pg_upgrade 中，连接到较旧源服务器时注意使用正确的协议版本", "evidence": {"same_day": true, "patch_ids": ["566020049e5cf4849b3dd9a9935a3aba"], "statement_hash": "6ea9a20b0f199ebe33de09e3497f924a73ae542c7d6af134326d0792ad8e087c"}, "url": "/docs/compare/?release=14.23#14.23-2b24a61f4f7f3458", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-760c43569faae613", "cves": [], "html": "在 contrib/basic_archive 中，允许启动时归档目录不存在（Nathan Bossart）§
此前，如果 basic_archive.archive_directory 的设置没有指向一个已存在的目录，就会被拒绝。这并不理想，因为即使该目录稍后出现，归档也会无限期卡住。
修复 contrib/ltree，使其能够处理大小写折叠改变字符串字节长度的情况（Jeff Davis）§
此前，指定大小写不敏感匹配的 lquery 模式，可能无法匹配本应匹配的标签。
在 contrib/pg_stat_statements 中，如果解析 pgss_query_texts.stat 文件时发生错误，不要泄漏内存（Heikki Linnakangas）§
在 contrib/postgres_fdw 中，避免因过早清理失败连接而崩溃（Etsuro Fujita）§
如果远程连接的中止清理失败，我们就不能再使用它。但要将关闭连接对象延迟到事务结束时执行，因为打开的游标等数据结构中可能仍有对它的引用。
", "text": "在 contrib/postgres_fdw 中，避免因过早清理失败连接而崩溃（Etsuro Fujita）§ 如果远程连接的中止清理失败，我们就不能再使用它。但要将关闭连接对象延迟到事务结束时执行，因为打开的游标等数据结构中可能仍有对它的引用。", "title": "在 contrib/postgres_fdw 中，避免因过早清理失败连接而崩溃", "commits": ["af8f9248f"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.10/#RELEASE-17-10-CHANGES", "source_hash": "84ce363096cf71d57f6c5553a14d4ce2882ced43fc2e05a7b774e01833077b0a", "section_path": ["变更"], "commit_groups": [["1352651c2", "34c18a225", "648818ba3", "af8f9248f", "c318777da", "fd5b36ab1"]], "identity_text": "In contrib/postgres_fdw, avoid crash due to premature cleanup of a failed connection (Etsuro Fujita) If a remote connection fails abort cleanup, we can't use it any longer. But delay closing the connection object until end of transaction, because there might still be references to it within data structures such as open cursors.", "commit_aliases": ["1352651c2", "34c18a225", "648818ba3", "af8f9248f", "c318777da", "fd5b36ab1"], "source_commits": ["af8f9248f"], "source_entry_id": "17.10/changes/057", "db_id": "9bcb1c284d9f8abb68fce372f4df9301", "patch_ids": ["73eecb88ff1f4197b1eb6900521746ca"], "statement_hash": "c7e9961353a3aad5643e55ab0c89f89d4bd050418724e45b79a4a1fb13cd1c48", "relations": [{"rule": 2, "type": "equivalent", "target": "5debbdff219f6645c34f0afc23c6c9a8", "evidence": {"same_day": true, "patch_ids": ["73eecb88ff1f4197b1eb6900521746ca"], "statement_hash": "c7e9961353a3aad5643e55ab0c89f89d4bd050418724e45b79a4a1fb13cd1c48"}}, {"rule": 2, "type": "equivalent", "target": "701d8322decc496c951bc0d7ecfdd513", "evidence": {"same_day": true, "patch_ids": ["73eecb88ff1f4197b1eb6900521746ca"], "statement_hash": "c7e9961353a3aad5643e55ab0c89f89d4bd050418724e45b79a4a1fb13cd1c48"}}, {"rule": 2, "type": "equivalent", "target": "8c8ea6b283a201d99cb3d8c9f57cd142", "evidence": {"same_day": true, "patch_ids": ["73eecb88ff1f4197b1eb6900521746ca"], "statement_hash": "c7e9961353a3aad5643e55ab0c89f89d4bd050418724e45b79a4a1fb13cd1c48"}}, {"rule": 2, "type": "equivalent", "target": "b0783885375212755fb05950c3052a4a", "evidence": {"same_day": true, "patch_ids": ["73eecb88ff1f4197b1eb6900521746ca"], "statement_hash": "c7e9961353a3aad5643e55ab0c89f89d4bd050418724e45b79a4a1fb13cd1c48"}}], "version": "17.10", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "5debbdff219f6645c34f0afc23c6c9a8", "kind": "equivalent", "version": "18.4", "label": "18.4", "title": "在 contrib/postgres_fdw 中，避免因过早清理失败连接而崩溃", "evidence": {"same_day": true, "patch_ids": ["73eecb88ff1f4197b1eb6900521746ca"], "statement_hash": "c7e9961353a3aad5643e55ab0c89f89d4bd050418724e45b79a4a1fb13cd1c48"}, "url": "/docs/compare/?release=18.4#18.4-78a75773cc77437b", "source_url": "/docs/release/18.4/#RELEASE-18-4-CHANGES"}, {"db_id": "8c8ea6b283a201d99cb3d8c9f57cd142", "kind": "equivalent", "version": "16.14", "label": "16.14", "title": "在 contrib/postgres_fdw 中，避免因过早清理失败连接而崩溃", "evidence": {"same_day": true, "patch_ids": ["73eecb88ff1f4197b1eb6900521746ca"], "statement_hash": "c7e9961353a3aad5643e55ab0c89f89d4bd050418724e45b79a4a1fb13cd1c48"}, "url": "/docs/compare/?release=16.14#16.14-c88b56bc0749f951", "source_url": "/docs/release/16.14/#RELEASE-16-14-CHANGES"}, {"db_id": "701d8322decc496c951bc0d7ecfdd513", "kind": "equivalent", "version": "15.18", "label": "15.18", "title": "在 contrib/postgres_fdw 中，避免因过早清理失败连接而崩溃", "evidence": {"same_day": true, "patch_ids": ["73eecb88ff1f4197b1eb6900521746ca"], "statement_hash": "c7e9961353a3aad5643e55ab0c89f89d4bd050418724e45b79a4a1fb13cd1c48"}, "url": "/docs/compare/?release=15.18#15.18-9110118db586478d", "source_url": "/docs/release/15.18/#RELEASE-15-18-CHANGES"}, {"db_id": "b0783885375212755fb05950c3052a4a", "kind": "equivalent", "version": "14.23", "label": "14.23", "title": "在 contrib/postgres_fdw 中，避免因过早清理失败连接而崩溃", "evidence": {"same_day": true, "patch_ids": ["73eecb88ff1f4197b1eb6900521746ca"], "statement_hash": "c7e9961353a3aad5643e55ab0c89f89d4bd050418724e45b79a4a1fb13cd1c48"}, "url": "/docs/compare/?release=14.23#14.23-c4a00b3d7115895d", "source_url": "/docs/release/14.23/#RELEASE-14-23-CHANGES"}]}, {"id": "17.10-1e6fcd0fa95c5ce6", "cves": [], "html": "将时区数据文件更新到 tzdata 2026b 发布版本（Tom Lane）§
\nBritish Columbia（America/Vancouver）将从 2026 年 11 月开始全年采用 UTC-07（实际上就是永久 DST）。本次发布假定其 TZ 缩写从那时起为 MST。这看起来可能会改变，但尚不清楚会使用什么新缩写。另外还有一项针对 Moldova 的历史修正：自 2022 年以来，他们一直遵循 EU 的 DST 转换时间。
对于运行 17.X 的用户，无需执行转储/恢复。
\n但是，如果你从早于 17.6 的版本升级，请参见第 E.6 节。
", "compatibility_count": 0, "label": "17.9", "status_label": "受支持版本", "eol": "2029-11-08", "age_days": 216, "support_days": 1135, "entries": [{"id": "17.9-80ecbcad5117683e", "cves": [], "html": "修复在重放由较旧小版本生成的 WAL 多事务 ID 截断记录后发生失败的问题（Heikki Linnakangas）§
\n为兼容旧版本处理多事务 ID 回卷方式而编写的错误逻辑，会导致重放失败，并出现诸如 “could not access status of transaction” 之类的消息。一种典型场景是：最新小版本的备库正在消费来自较旧版本主库的 WAL。
", "text": "修复在重放由较旧小版本生成的 WAL 多事务 ID 截断记录后发生失败的问题（Heikki Linnakangas）§ 为兼容旧版本处理多事务 ID 回卷方式而编写的错误逻辑，会导致重放失败，并出现诸如 “could not access status of transaction” 之类的消息。一种典型场景是：最新小版本的备库正在消费来自较旧版本主库的 WAL。", "title": "修复在重放由较旧小版本生成的 WAL 多事务 ID 截断记录后发生失败的问题", "commits": ["4a36c89f1"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.9/#RELEASE-17-9-CHANGES", "source_hash": "5301788c87a3db984faace17c7bd4a7a012ab0d7cc19a79a859c975b284beed6", "section_path": ["变更"], "commit_groups": [["23064542f", "4a36c89f1", "547a8aaa7", "817f74600", "899de38d8"]], "identity_text": "Fix failure after replaying a multixid truncation record from WAL that was generated by an older minor version (Heikki Linnakangas) Erroneous logic for coping with the way that previous versions handled multixid wraparound led to replay failure, with messages like could not access status of transaction. A typical scenario in which this could occur is a standby server of the latest minor version consuming WAL from a primary server of an older version.", "commit_aliases": ["23064542f", "4a36c89f1", "547a8aaa7", "817f74600", "899de38d8"], "source_commits": ["4a36c89f1"], "source_entry_id": "17.9/changes/001", "db_id": "269e20cac41b248d80f469e35fb3be04", "patch_ids": ["e8c592597fe0c522a838714ea94d192e"], "statement_hash": "cf611d327c6efbb05b8c3c3eec25baadc4b81f3015eda12031c5dfd70647d75d", "relations": [{"rule": 2, "type": "equivalent", "target": "54acee06ad9ee6f00cba048e48dfdadc", "evidence": {"same_day": true, "patch_ids": ["e8c592597fe0c522a838714ea94d192e"], "statement_hash": "cf611d327c6efbb05b8c3c3eec25baadc4b81f3015eda12031c5dfd70647d75d"}}, {"rule": 2, "type": "equivalent", "target": "6d7df9238b789e2555fe1290d455a61a", "evidence": {"same_day": true, "patch_ids": ["e8c592597fe0c522a838714ea94d192e"], "statement_hash": "cf611d327c6efbb05b8c3c3eec25baadc4b81f3015eda12031c5dfd70647d75d"}}, {"rule": 2, "type": "equivalent", "target": "ac9d069b97f39c99f4c9540523c6dd01", "evidence": {"same_day": true, "patch_ids": ["e8c592597fe0c522a838714ea94d192e"], "statement_hash": "cf611d327c6efbb05b8c3c3eec25baadc4b81f3015eda12031c5dfd70647d75d"}}, {"rule": 2, "type": "equivalent", "target": "bb4c9dfad3173d99906963ab569e5990", "evidence": {"same_day": true, "patch_ids": ["e8c592597fe0c522a838714ea94d192e"], "statement_hash": "cf611d327c6efbb05b8c3c3eec25baadc4b81f3015eda12031c5dfd70647d75d"}}], "version": "17.9", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "6d7df9238b789e2555fe1290d455a61a", "kind": "equivalent", "version": "18.3", "label": "18.3", "title": "修复在重放由较旧小版本生成的 WAL 多事务 ID 截断记录后发生失败的问题", "evidence": {"same_day": true, "patch_ids": ["e8c592597fe0c522a838714ea94d192e"], "statement_hash": "cf611d327c6efbb05b8c3c3eec25baadc4b81f3015eda12031c5dfd70647d75d"}, "url": "/docs/compare/?release=18.3#18.3-ad611cd1e209983f", "source_url": "/docs/release/18.3/#RELEASE-18-3-CHANGES"}, {"db_id": "54acee06ad9ee6f00cba048e48dfdadc", "kind": "equivalent", "version": "16.13", "label": "16.13", "title": "修复在重放由较旧小版本生成的 WAL 多事务 ID 截断记录后发生失败的问题", "evidence": {"same_day": true, "patch_ids": ["e8c592597fe0c522a838714ea94d192e"], "statement_hash": "cf611d327c6efbb05b8c3c3eec25baadc4b81f3015eda12031c5dfd70647d75d"}, "url": "/docs/compare/?release=16.13#16.13-2ec40dc78a340503", "source_url": "/docs/release/16.13/#RELEASE-16-13-CHANGES"}, {"db_id": "ac9d069b97f39c99f4c9540523c6dd01", "kind": "equivalent", "version": "15.17", "label": "15.17", "title": "修复在重放由较旧小版本生成的 WAL 多事务 ID 截断记录后发生失败的问题", "evidence": {"same_day": true, "patch_ids": ["e8c592597fe0c522a838714ea94d192e"], "statement_hash": "cf611d327c6efbb05b8c3c3eec25baadc4b81f3015eda12031c5dfd70647d75d"}, "url": "/docs/compare/?release=15.17#15.17-b825392cb651a3f2", "source_url": "/docs/release/15.17/#ZH-AUTO-RELEASE-15-SECT2-2"}, {"db_id": "bb4c9dfad3173d99906963ab569e5990", "kind": "equivalent", "version": "14.22", "label": "14.22", "title": "修复在重放由较旧小版本生成的 WAL 多事务 ID 截断记录后发生失败的问题", "evidence": {"same_day": true, "patch_ids": ["e8c592597fe0c522a838714ea94d192e"], "statement_hash": "cf611d327c6efbb05b8c3c3eec25baadc4b81f3015eda12031c5dfd70647d75d"}, "url": "/docs/compare/?release=14.22#14.22-b825392cb651a3f2", "source_url": "/docs/release/14.22/#ZH-AUTO-RELEASE-14-SECT2-2"}]}, {"id": "17.9-24d7e69f6ec0ae9a", "cves": ["CVE-2026-2006"], "html": "避免在对“经过 TOAST 处理”的数据应用 substring() 时误报无效编码（Noah Misch）§ § §
针对 CVE-2026-2006 的修复过于激进，在原本合法的情况下也可能报出字符不完整错误。
", "text": "避免在对“经过 TOAST 处理”的数据应用 substring() 时误报无效编码（Noah Misch）§ § § 针对 CVE-2026-2006 的修复过于激进，在原本合法的情况下也可能报出字符不完整错误。", "title": "避免在对“经过 TOAST 处理”的数据应用 substring() 时误报无效编码", "commits": ["50d361f62", "5d5232bc3", "8e73530f1"], "section": "变更", "category": "security", "source_url": "/docs/release/17.9/#RELEASE-17-9-CHANGES", "source_hash": "f66079943109d09ab5df6de739fc355e5c2d722d3c278d0cc7fdcdd0da281fcd", "section_path": ["变更"], "commit_groups": [["14b1fd617", "5d5232bc3", "6e045e1a6", "9f4fd119b", "a20eb248c", "bdfb37228"], ["2280ab354", "50d361f62", "8cef93d8a", "a0769e74d", "d04b34d68", "ec86152e0"], ["4174e41b9", "44fc85bbf", "45eb47230", "4644f8b23", "5b305ebcc", "8e73530f1"]], "identity_text": "Avoid incorrect complaint of invalid encoding when substring() is applied to toasted data (Noah Misch) The fix for CVE-2026-2006 was too aggressive and could raise an error about an incomplete character in cases that are actually valid.", "commit_aliases": ["14b1fd617", "2280ab354", "4174e41b9", "44fc85bbf", "45eb47230", "4644f8b23", "50d361f62", "5b305ebcc", "5d5232bc3", "6e045e1a6", "8cef93d8a", "8e73530f1", "9f4fd119b", "a0769e74d", "a20eb248c", "bdfb37228", "d04b34d68", "ec86152e0"], "source_commits": ["50d361f62", "5d5232bc3", "8e73530f1"], "source_entry_id": "17.9/changes/002", "db_id": "91516991913d971894a1428891e4772e", "patch_ids": ["924bc2a7b62c922890c6948fec9b1504", "b621552d0483c3fe9118c60e77f297ab", "fe6380c6909ab3efff6be8983b7f18a1"], "statement_hash": "b34aae4222592f29a7ecee54df249e73bebb9346d81b2e5c859347ba8c1ea747", "relations": [{"rule": 2, "type": "equivalent", "target": "2913b28e99dd666bc31951814a799735", "evidence": {"same_day": true, "patch_ids": ["924bc2a7b62c922890c6948fec9b1504", "b621552d0483c3fe9118c60e77f297ab", "fe6380c6909ab3efff6be8983b7f18a1"], "statement_hash": "b34aae4222592f29a7ecee54df249e73bebb9346d81b2e5c859347ba8c1ea747"}}, {"rule": 2, "type": "equivalent", "target": "9b63cad6030353d772f1330dfd687e9f", "evidence": {"same_day": true, "patch_ids": ["924bc2a7b62c922890c6948fec9b1504", "b621552d0483c3fe9118c60e77f297ab", "fe6380c6909ab3efff6be8983b7f18a1"], "statement_hash": "b34aae4222592f29a7ecee54df249e73bebb9346d81b2e5c859347ba8c1ea747"}}, {"rule": 2, "type": "equivalent", "target": "da9fc04e8b825c72955bd70be9fd53ee", "evidence": {"same_day": true, "patch_ids": ["924bc2a7b62c922890c6948fec9b1504", "b621552d0483c3fe9118c60e77f297ab", "fe6380c6909ab3efff6be8983b7f18a1"], "statement_hash": "b34aae4222592f29a7ecee54df249e73bebb9346d81b2e5c859347ba8c1ea747"}}, {"rule": 2, "type": "equivalent", "target": "fe28a154c085da9085a635db8d9d4460", "evidence": {"same_day": true, "patch_ids": ["924bc2a7b62c922890c6948fec9b1504", "b621552d0483c3fe9118c60e77f297ab", "fe6380c6909ab3efff6be8983b7f18a1"], "statement_hash": "b34aae4222592f29a7ecee54df249e73bebb9346d81b2e5c859347ba8c1ea747"}}], "version": "17.9", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "9b63cad6030353d772f1330dfd687e9f", "kind": "equivalent", "version": "18.3", "label": "18.3", "title": "避免在对“经过 TOAST 处理”的数据应用 substring() 时误报无效编码", "evidence": {"same_day": true, "patch_ids": ["924bc2a7b62c922890c6948fec9b1504", "b621552d0483c3fe9118c60e77f297ab", "fe6380c6909ab3efff6be8983b7f18a1"], "statement_hash": "b34aae4222592f29a7ecee54df249e73bebb9346d81b2e5c859347ba8c1ea747"}, "url": "/docs/compare/?release=18.3#18.3-77113f5b52409590", "source_url": "/docs/release/18.3/#RELEASE-18-3-CHANGES"}, {"db_id": "fe28a154c085da9085a635db8d9d4460", "kind": "equivalent", "version": "16.13", "label": "16.13", "title": "避免在对“经过 TOAST 处理”的数据应用 substring() 时误报无效编码", "evidence": {"same_day": true, "patch_ids": ["924bc2a7b62c922890c6948fec9b1504", "b621552d0483c3fe9118c60e77f297ab", "fe6380c6909ab3efff6be8983b7f18a1"], "statement_hash": "b34aae4222592f29a7ecee54df249e73bebb9346d81b2e5c859347ba8c1ea747"}, "url": "/docs/compare/?release=16.13#16.13-46657f359d7a6c06", "source_url": "/docs/release/16.13/#RELEASE-16-13-CHANGES"}, {"db_id": "2913b28e99dd666bc31951814a799735", "kind": "equivalent", "version": "15.17", "label": "15.17", "title": "避免在对“经过 TOAST 处理”的数据应用 substring() 时误报无效编码", "evidence": {"same_day": true, "patch_ids": ["924bc2a7b62c922890c6948fec9b1504", "b621552d0483c3fe9118c60e77f297ab", "fe6380c6909ab3efff6be8983b7f18a1"], "statement_hash": "b34aae4222592f29a7ecee54df249e73bebb9346d81b2e5c859347ba8c1ea747"}, "url": "/docs/compare/?release=15.17#15.17-ed7a109835c41923", "source_url": "/docs/release/15.17/#ZH-AUTO-RELEASE-15-SECT2-2"}, {"db_id": "da9fc04e8b825c72955bd70be9fd53ee", "kind": "equivalent", "version": "14.22", "label": "14.22", "title": "避免在对“经过 TOAST 处理”的数据应用 substring() 时误报无效编码", "evidence": {"same_day": true, "patch_ids": ["924bc2a7b62c922890c6948fec9b1504", "b621552d0483c3fe9118c60e77f297ab", "fe6380c6909ab3efff6be8983b7f18a1"], "statement_hash": "b34aae4222592f29a7ecee54df249e73bebb9346d81b2e5c859347ba8c1ea747"}, "url": "/docs/compare/?release=14.22#14.22-0e619c964c972dcb", "source_url": "/docs/release/14.22/#ZH-AUTO-RELEASE-14-SECT2-2"}]}, {"id": "17.9-1441e21296f1914d", "cves": [], "html": "修复对 LATERAL UNION ALL 子查询输出可能将其置空的外连接集合的计算（Richard Guo）§
这一错误可能导致系统误以为某些 NOT NULL 测试没有必要，从而跳过这些测试，最终产生错误的查询结果。
修复 pg_stat_get_backend_wait_event() 和 pg_stat_get_backend_wait_event_type()，使其能够为辅助进程返回值（Heikki Linnakangas）§
此前，这些函数对辅助进程返回 NULL，但这与 pg_stat_activity 视图的行为不一致。
修复在从 PL/pgSQL 函数返回其值时，将复合类型变量转换为域类型的问题（Tom Lane）§
\n如果该变量的值为 NULL，则会出现 “cache lookup failed for type 0” 错误。
", "text": "修复在从 PL/pgSQL 函数返回其值时，将复合类型变量转换为域类型的问题（Tom Lane）§ 如果该变量的值为 NULL，则会出现 “cache lookup failed for type 0” 错误。", "title": "修复在从 PL/pgSQL 函数返回其值时，将复合类型变量转换为域类型的问题", "commits": ["dfd850980"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.9/#RELEASE-17-9-CHANGES", "source_hash": "8609a1b3bab14b3c4cbecc4cce37cf565bb82d9fbe4e1193bf5243274eacf17c", "section_path": ["变更"], "commit_groups": [["254b15cbf", "2b93d3820", "9863c9075", "c66f4cff1", "ce4b7e3a1", "dfd850980"]], "identity_text": "Fix casting a composite-type variable to a domain type when returning its value from a PL/pgSQL function (Tom Lane) If the variable's value is NULL, a cache lookup failed for type 0 error resulted.", "commit_aliases": ["254b15cbf", "2b93d3820", "9863c9075", "c66f4cff1", "ce4b7e3a1", "dfd850980"], "source_commits": ["dfd850980"], "source_entry_id": "17.9/changes/005", "db_id": "1f6375c5be0406ebaeab1ddd1281f48a", "patch_ids": ["4682bfcc99694f6b7bf7c07af3082c2e"], "statement_hash": "257a19cad310234769985e6594cf9f32698b7849a63b72427ee23e58e321e7d5", "relations": [{"rule": 2, "type": "equivalent", "target": "08e9766e078b0f98d664963d7351568a", "evidence": {"same_day": true, "patch_ids": ["4682bfcc99694f6b7bf7c07af3082c2e"], "statement_hash": "257a19cad310234769985e6594cf9f32698b7849a63b72427ee23e58e321e7d5"}}, {"rule": 2, "type": "equivalent", "target": "509c9d18c03750ab5a1af4533e9e3f71", "evidence": {"same_day": true, "patch_ids": ["4682bfcc99694f6b7bf7c07af3082c2e"], "statement_hash": "257a19cad310234769985e6594cf9f32698b7849a63b72427ee23e58e321e7d5"}}, {"rule": 2, "type": "equivalent", "target": "b3e55b2d8440115c6283ddb4434aed5d", "evidence": {"same_day": true, "patch_ids": ["4682bfcc99694f6b7bf7c07af3082c2e"], "statement_hash": "257a19cad310234769985e6594cf9f32698b7849a63b72427ee23e58e321e7d5"}}, {"rule": 2, "type": "equivalent", "target": "d7289871637eb477a52d704b8b129dee", "evidence": {"same_day": true, "patch_ids": ["4682bfcc99694f6b7bf7c07af3082c2e"], "statement_hash": "257a19cad310234769985e6594cf9f32698b7849a63b72427ee23e58e321e7d5"}}], "version": "17.9", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "d7289871637eb477a52d704b8b129dee", "kind": "equivalent", "version": "18.3", "label": "18.3", "title": "修复在从 PL/pgSQL 函数返回其值时，将复合类型变量转换为域类型的问题", "evidence": {"same_day": true, "patch_ids": ["4682bfcc99694f6b7bf7c07af3082c2e"], "statement_hash": "257a19cad310234769985e6594cf9f32698b7849a63b72427ee23e58e321e7d5"}, "url": "/docs/compare/?release=18.3#18.3-68534f113dfbb27d", "source_url": "/docs/release/18.3/#RELEASE-18-3-CHANGES"}, {"db_id": "b3e55b2d8440115c6283ddb4434aed5d", "kind": "equivalent", "version": "16.13", "label": "16.13", "title": "修复在从 PL/pgSQL 函数返回其值时，将复合类型变量转换为域类型的问题", "evidence": {"same_day": true, "patch_ids": ["4682bfcc99694f6b7bf7c07af3082c2e"], "statement_hash": "257a19cad310234769985e6594cf9f32698b7849a63b72427ee23e58e321e7d5"}, "url": "/docs/compare/?release=16.13#16.13-63ccf52c03df56be", "source_url": "/docs/release/16.13/#RELEASE-16-13-CHANGES"}, {"db_id": "509c9d18c03750ab5a1af4533e9e3f71", "kind": "equivalent", "version": "15.17", "label": "15.17", "title": "修复在从 PL/pgSQL 函数返回其值时，将复合类型变量转换为域类型的问题", "evidence": {"same_day": true, "patch_ids": ["4682bfcc99694f6b7bf7c07af3082c2e"], "statement_hash": "257a19cad310234769985e6594cf9f32698b7849a63b72427ee23e58e321e7d5"}, "url": "/docs/compare/?release=15.17#15.17-f14d3ac393cef450", "source_url": "/docs/release/15.17/#ZH-AUTO-RELEASE-15-SECT2-2"}, {"db_id": "08e9766e078b0f98d664963d7351568a", "kind": "equivalent", "version": "14.22", "label": "14.22", "title": "修复在从 PL/pgSQL 函数返回其值时，将复合类型变量转换为域类型的问题", "evidence": {"same_day": true, "patch_ids": ["4682bfcc99694f6b7bf7c07af3082c2e"], "statement_hash": "257a19cad310234769985e6594cf9f32698b7849a63b72427ee23e58e321e7d5"}, "url": "/docs/compare/?release=14.22#14.22-3b6651931176e1ab", "source_url": "/docs/release/14.22/#ZH-AUTO-RELEASE-14-SECT2-2"}]}, {"id": "17.9-09236fba7643dbb2", "cves": [], "html": "修复 contrib/hstore 二进制输入函数中潜在的空指针解引用问题（Michael Paquier）§
hstore 的接收函数在输入包含重复键时会崩溃。由 PostgreSQL 生成的 hstore 值永远不会包含重复键，因此这一错误一直未被发现。恶意构造或损坏的数据都可能触发该崩溃。
对于运行 17.X 的用户，无需执行转储/恢复。
\n但是，如果你从早于 17.6 的版本升级，请参见第 E.6 节。
", "compatibility_count": 0, "label": "17.8", "status_label": "受支持版本", "eol": "2029-11-08", "age_days": 230, "support_days": 1135, "entries": [{"id": "17.8-a1109c4f32ae03d0", "cves": ["CVE-2026-2003"], "html": "防止 oidvector/int2vector 出现意外的维度（Tom Lane）§
这些数据类型预期为不含空值的一维数组，但某些类型转换路径允许违背这些预期。现已为一些原本依赖这些预期却未加验证的函数补充检查，因为它们可能因此产生错误行为。
\nPostgreSQL 项目感谢 Altan Birler 报告此问题。（CVE-2026-2003）
", "text": "防止 oidvector/int2vector 出现意外的维度（Tom Lane）§ 这些数据类型预期为不含空值的一维数组，但某些类型转换路径允许违背这些预期。现已为一些原本依赖这些预期却未加验证的函数补充检查，因为它们可能因此产生错误行为。 PostgreSQL 项目感谢 Altan Birler 报告此问题。（CVE-2026-2003）", "title": "防止 oidvector/int2vector 出现意外的维度", "commits": ["3d160401b"], "section": "变更", "category": "security", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "d6f2ff312bd9c8c763279e53fb67886bc23756a9c53acaeff115450bf0778edc", "section_path": ["变更"], "commit_groups": [["3b6588cd9", "3d160401b", "429aeaebd", "595956fc7", "60e7ae41a", "b39d38139"]], "identity_text": "Guard against unexpected dimensions of oidvector/int2vector (Tom Lane) These data types are expected to be 1-dimensional arrays containing no nulls, but there are cast pathways that permit violating those expectations. Add checks to some functions that were depending on those expectations without verifying them, and could misbehave in consequence. The PostgreSQL Project thanks Altan Birler for reporting this problem. (CVE-2026-2003)", "commit_aliases": ["3b6588cd9", "3d160401b", "429aeaebd", "595956fc7", "60e7ae41a", "b39d38139"], "source_commits": ["3d160401b"], "source_entry_id": "17.8/changes/001", "db_id": "dadfe1bd35a127e4b2350a876ce5f39d", "patch_ids": ["e625ea93052fd4dfb5ad354c3e4c3569"], "statement_hash": "ce3b678bc249d2400e6f33b017d19a152d1f885b7690423e0e17ba0530a55787", "relations": [{"rule": 2, "type": "equivalent", "target": "020aec6d98ff35dcd4eca87ecb7d21fd", "evidence": {"same_day": true, "patch_ids": ["e625ea93052fd4dfb5ad354c3e4c3569"], "statement_hash": "ce3b678bc249d2400e6f33b017d19a152d1f885b7690423e0e17ba0530a55787"}}, {"rule": 2, "type": "equivalent", "target": "8db55cd2cacfbefb7d8380baee0440a5", "evidence": {"same_day": true, "patch_ids": ["e625ea93052fd4dfb5ad354c3e4c3569"], "statement_hash": "ce3b678bc249d2400e6f33b017d19a152d1f885b7690423e0e17ba0530a55787"}}, {"rule": 2, "type": "equivalent", "target": "93680dc2fc005fc9bc0a92b7d80ee23b", "evidence": {"same_day": true, "patch_ids": ["e625ea93052fd4dfb5ad354c3e4c3569"], "statement_hash": "ce3b678bc249d2400e6f33b017d19a152d1f885b7690423e0e17ba0530a55787"}}, {"rule": 2, "type": "equivalent", "target": "d474cd2cf9a4505bba396d502fe366fe", "evidence": {"same_day": true, "patch_ids": ["e625ea93052fd4dfb5ad354c3e4c3569"], "statement_hash": "ce3b678bc249d2400e6f33b017d19a152d1f885b7690423e0e17ba0530a55787"}}], "version": "17.8", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "020aec6d98ff35dcd4eca87ecb7d21fd", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "防止 oidvector/int2vector 出现意外的维度", "evidence": {"same_day": true, "patch_ids": ["e625ea93052fd4dfb5ad354c3e4c3569"], "statement_hash": "ce3b678bc249d2400e6f33b017d19a152d1f885b7690423e0e17ba0530a55787"}, "url": "/docs/compare/?release=18.2#18.2-5c52afa7301594c6", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "93680dc2fc005fc9bc0a92b7d80ee23b", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "防止 oidvector/int2vector 出现意外的维度", "evidence": {"same_day": true, "patch_ids": ["e625ea93052fd4dfb5ad354c3e4c3569"], "statement_hash": "ce3b678bc249d2400e6f33b017d19a152d1f885b7690423e0e17ba0530a55787"}, "url": "/docs/compare/?release=16.12#16.12-289361027e903f71", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "8db55cd2cacfbefb7d8380baee0440a5", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "防止 oidvector/int2vector 出现意外的维度", "evidence": {"same_day": true, "patch_ids": ["e625ea93052fd4dfb5ad354c3e4c3569"], "statement_hash": "ce3b678bc249d2400e6f33b017d19a152d1f885b7690423e0e17ba0530a55787"}, "url": "/docs/compare/?release=15.16#15.16-cffa85682917fc25", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "d474cd2cf9a4505bba396d502fe366fe", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "防止 oidvector/int2vector 出现意外的维度", "evidence": {"same_day": true, "patch_ids": ["e625ea93052fd4dfb5ad354c3e4c3569"], "statement_hash": "ce3b678bc249d2400e6f33b017d19a152d1f885b7690423e0e17ba0530a55787"}, "url": "/docs/compare/?release=14.21#14.21-182abf620be79725", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-66e960e22441cfaa", "cves": ["CVE-2026-2004"], "html": "增强选择率估算器在被附加到接受非预期数据类型的操作符时的防护（Tom Lane）§ § §
\ncontrib/intarray 包含一个选择率估算函数；由于它未检查输入是否为预期的数据类型，该函数可被滥用来执行任意代码。第三方扩展也应检查是否存在类似风险，并采用 intarray 现在使用的技术来增加防护。由于此类扩展的修复需要时间，我们现在要求具有超级用户权限，才能将非内置的选择率估算器附加到操作符上。
PostgreSQL 项目感谢 Daniel Firer（zeroday.cloud 成员）报告此问题。（CVE-2026-2004）
", "text": "增强选择率估算器在被附加到接受非预期数据类型的操作符时的防护（Tom Lane）§ § § contrib/intarray 包含一个选择率估算函数；由于它未检查输入是否为预期的数据类型，该函数可被滥用来执行任意代码。第三方扩展也应检查是否存在类似风险，并采用 intarray 现在使用的技术来增加防护。由于此类扩展的修复需要时间，我们现在要求具有超级用户权限，才能将非内置的选择率估算器附加到操作符上。 PostgreSQL 项目感谢 Daniel Firer（zeroday.cloud 成员）报告此问题。（CVE-2026-2004）", "title": "增强选择率估算器在被附加到接受非预期数据类型的操作符时的防护", "commits": ["bbf5bcf58", "dbb09fd8e", "dd3ad2a4d"], "section": "变更", "category": "security", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "a00d40efc8ae577ccc246661e137fe4f7abc81b3f58595861b4c47e8d4faa418", "section_path": ["变更"], "commit_groups": [["3ecc84cce", "9fa38c572", "d484bc260", "dbb09fd8e"], ["66ddac698", "841d42cc4", "91d7c0bfd", "b764b26f2", "bbf5bcf58", "ea3bf3498"], ["7e82d9a04", "8ebdf41c2", "b69af3dda", "c0887b39d", "dd3ad2a4d", "deb464a40"]], "identity_text": "Harden selectivity estimators against being attached to operators that accept unexpected data types (Tom Lane) contrib/intarray contained a selectivity estimation function that could be abused for arbitrary code execution, because it did not check that its input was of the expected data type. Third-party extensions should check for similar hazards and add defenses using the technique intarray now uses. Since such extension fixes will take time, we now require superuser privilege to attach a non-built-in selectivity estimator to an operator. The PostgreSQL Project thanks Daniel Firer, as part of zeroday.cloud, for reporting this problem. 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解密带有超长会话密钥的精心构造消息会导致缓冲区溢出，严重时甚至可能执行任意代码。
\nPostgreSQL 项目感谢 Team Xint Code（zeroday.cloud 成员）报告此问题。（CVE-2026-2005）
", "text": "修复 contrib/pgcrypto PGP 解密函数中的缓冲区溢出问题（Michael Paquier）§ 解密带有超长会话密钥的精心构造消息会导致缓冲区溢出，严重时甚至可能执行任意代码。 PostgreSQL 项目感谢 Team Xint Code（zeroday.cloud 成员）报告此问题。（CVE-2026-2005）", "title": "修复 contrib/pgcrypto PGP 解密函数中的缓冲区溢出问题", "commits": ["7a7d9693c"], "section": "变更", "category": "security", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "923d16f7f40f0f2013f149ad35364455b08193ae08e5a9c043f7a02700494a37", "section_path": ["变更"], "commit_groups": [["01de2e32d", "209f387b8", "379695d3c", "527b730f4", "7a7d9693c", "9a9982ec6"]], "identity_text": "Fix buffer overrun in contrib/pgcrypto's PGP decryption functions (Michael Paquier) Decrypting a crafted message with an overlength session key caused a buffer overrun, with consequences as bad as arbitrary code execution. The PostgreSQL Project thanks Team Xint Code, as part of zeroday.cloud, for reporting this problem. (CVE-2026-2005)", "commit_aliases": ["01de2e32d", "209f387b8", "379695d3c", "527b730f4", "7a7d9693c", "9a9982ec6"], "source_commits": ["7a7d9693c"], "source_entry_id": "17.8/changes/003", "db_id": "d0b0ce25a07e9ad598056180477520b6", "patch_ids": ["8812c5ce4844c4609945e75b3dad003d"], "statement_hash": "643330e49824e6c84ee06b67cc1febd73b94c839951a2861efc8c384a23e8307", "relations": [{"rule": 2, "type": "equivalent", "target": "bdd4104dfc3659a38e0f0389ee19b847", "evidence": {"same_day": true, "patch_ids": ["8812c5ce4844c4609945e75b3dad003d"], "statement_hash": "643330e49824e6c84ee06b67cc1febd73b94c839951a2861efc8c384a23e8307"}}, {"rule": 2, "type": "equivalent", "target": "e4dd47f240a98be34ae099044d8a2b56", "evidence": {"same_day": true, "patch_ids": ["8812c5ce4844c4609945e75b3dad003d"], "statement_hash": "643330e49824e6c84ee06b67cc1febd73b94c839951a2861efc8c384a23e8307"}}, {"rule": 2, "type": "equivalent", "target": "e7bf20473d33d5835462a40fa9fd5552", "evidence": {"same_day": true, "patch_ids": ["8812c5ce4844c4609945e75b3dad003d"], "statement_hash": "643330e49824e6c84ee06b67cc1febd73b94c839951a2861efc8c384a23e8307"}}, {"rule": 2, "type": "equivalent", "target": "ef4c4d388861428d41d8694448d1ec90", "evidence": {"same_day": true, "patch_ids": ["8812c5ce4844c4609945e75b3dad003d"], "statement_hash": "643330e49824e6c84ee06b67cc1febd73b94c839951a2861efc8c384a23e8307"}}], "version": "17.8", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "ef4c4d388861428d41d8694448d1ec90", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复 contrib/pgcrypto PGP 解密函数中的缓冲区溢出问题", "evidence": {"same_day": true, "patch_ids": ["8812c5ce4844c4609945e75b3dad003d"], "statement_hash": "643330e49824e6c84ee06b67cc1febd73b94c839951a2861efc8c384a23e8307"}, "url": "/docs/compare/?release=18.2#18.2-c6669984145bd55c", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "e7bf20473d33d5835462a40fa9fd5552", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复 contrib/pgcrypto PGP 解密函数中的缓冲区溢出问题", "evidence": {"same_day": true, "patch_ids": ["8812c5ce4844c4609945e75b3dad003d"], "statement_hash": "643330e49824e6c84ee06b67cc1febd73b94c839951a2861efc8c384a23e8307"}, "url": "/docs/compare/?release=16.12#16.12-a3ed183e10806004", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "e4dd47f240a98be34ae099044d8a2b56", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "修复 contrib/pgcrypto PGP 解密函数中的缓冲区溢出问题", "evidence": {"same_day": true, "patch_ids": ["8812c5ce4844c4609945e75b3dad003d"], "statement_hash": "643330e49824e6c84ee06b67cc1febd73b94c839951a2861efc8c384a23e8307"}, "url": "/docs/compare/?release=15.16#15.16-55f620c5255ec99f", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "bdd4104dfc3659a38e0f0389ee19b847", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "修复 contrib/pgcrypto PGP 解密函数中的缓冲区溢出问题", "evidence": {"same_day": true, "patch_ids": ["8812c5ce4844c4609945e75b3dad003d"], "statement_hash": "643330e49824e6c84ee06b67cc1febd73b94c839951a2861efc8c384a23e8307"}, "url": "/docs/compare/?release=14.21#14.21-8072e6858a1ccb57", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-0378679c62701a5e", "cves": ["CVE-2026-2006"], "html": "修复多字节字符长度验证不充分的问题（Thomas Munro，Noah Misch）§ § § § § §
\n多处漏洞使攻击者只要能够发出精心构造的 SQL，就可能溢出字符串缓冲区，严重时甚至可以执行任意代码。应用这些修复后，当字符串函数处理数据库中存储的无效文本时，应用程序可能会看到 “invalid byte sequence for encoding” 错误。
\nPostgreSQL 项目感谢 Paul Gerste 和 Moritz Sanft（zeroday.cloud 成员）报告此问题。（CVE-2026-2006）
", "text": "修复多字节字符长度验证不充分的问题（Thomas Munro，Noah Misch）§ § § § § § 多处漏洞使攻击者只要能够发出精心构造的 SQL，就可能溢出字符串缓冲区，严重时甚至可以执行任意代码。应用这些修复后，当字符串函数处理数据库中存储的无效文本时，应用程序可能会看到 “invalid byte sequence for encoding” 错误。 PostgreSQL 项目感谢 Paul Gerste 和 Moritz Sanft（zeroday.cloud 成员）报告此问题。（CVE-2026-2006）", "title": "修复多字节字符长度验证不充分的问题", "commits": ["10ebc4bd6", "319e8a644", "7a522039f", "838248b1b", "955433ebd", "dc072a09a"], "section": "变更", "category": "security", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "238f0fc4dda91173712b65ba74cb4edb0f612ba90410f7930399ed1efdd9b3b5", "section_path": ["变更"], "commit_groups": [["0c33d5608", "8373ed094", "8f8b1ffac", "b42709194", "d536aee55", "dc072a09a"], ["10ebc4bd6", "4c08960d9", "757bf8145", "b0f5d25bc", "c67bef3f3", "e7591254c"], ["1e7fe06c1", "319e8a644", "7b5fc85be", "cecedb912", "d837fb029", "fd82ddb67"], ["2a53db21e", "70ff9ede5", "838248b1b", "af79c30dc", "b2c81ac86", "df0852fe0"], ["4543b02af", "5301b2b7d", "6f741bcb6", "763671b74", "955433ebd", "c5dc75479"], ["50863be0b", "6ed116046", "74ee636cc", "7a522039f", "b0e3f5cf9", "efef05ba9"]], "identity_text": "Fix inadequate validation of multibyte character lengths (Thomas Munro, Noah Misch) Assorted bugs allowed an attacker able to issue crafted SQL to overrun string buffers, with consequences as bad as arbitrary code execution. After these fixes, applications may observe invalid byte sequence for encoding errors when string functions process invalid text that has been stored in the database. The PostgreSQL Project thanks Paul Gerste and Moritz Sanft, as part of zeroday.cloud, for reporting this problem. 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"a8ccf4d965aea8d430069f2b4025b384", "b98e99e748716baf094e4d11553e19ae", "e1e546efb1e21ef2c167c052b7fc2c27", "ef48875931b707685e95ea56147ddbe5"], "statement_hash": "6c6e0d081c08625c5f6ce833f7e79f2bb277ec939453acd9d359f724272d34eb"}, "url": "/docs/compare/?release=14.21#14.21-0170b76fb58a4a02", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-69605b7e08548aa0", "cves": [], "html": "不允许由子查询中的 CTE 引用决定聚合函数的语义层级（Tom Lane）§
\n此变更撤销了两个小版本之前引入的一项更改；现在，如果某个子查询引用的 CTE 所处层级低于按标准 SQL 规则依据其中的列引用和聚合所判定的聚合语义层级，将抛出错误。先前的修复方案本身也带来了问题，而且目前尚不清楚应如何处理。由于 SQL 标准本就完全不允许在聚合中包含子查询，将此类情况视为错误似乎已经足够。
", "text": "不允许由子查询中的 CTE 引用决定聚合函数的语义层级（Tom Lane）§ 此变更撤销了两个小版本之前引入的一项更改；现在，如果某个子查询引用的 CTE 所处层级低于按标准 SQL 规则依据其中的列引用和聚合所判定的聚合语义层级，将抛出错误。先前的修复方案本身也带来了问题，而且目前尚不清楚应如何处理。由于 SQL 标准本就完全不允许在聚合中包含子查询，将此类情况视为错误似乎已经足够。", "title": "不允许由子查询中的 CTE 引用决定聚合函数的语义层级", "commits": ["075a763e2"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "366fd2104235cda7c6d90b71c0667bf4f55ec1bd9c380ea58391127dd4d40a05", "section_path": ["变更"], "commit_groups": [["075a763e2", "12bc32917", "1c8c3206f", "35b5c62c3", "9f5a58aac", "b85397481"]], "identity_text": "Don't allow CTE references in sub-selects to determine semantic levels of aggregate functions (Tom Lane) This change undoes a change made two minor releases ago, instead throwing an error if a sub-select references a CTE that's below the semantic level that standard SQL rules would assign to the aggregate based on contained column references and aggregates. The attempted fix turned out to cause problems of its own, and it's unclear what to do instead. Since sub-selects within aggregates are disallowed altogether by the SQL standard, treating such cases as errors seems sufficient.", "commit_aliases": ["075a763e2", "12bc32917", "1c8c3206f", "35b5c62c3", "9f5a58aac", "b85397481"], "source_commits": ["075a763e2"], "source_entry_id": "17.8/changes/005", "db_id": "128a16829eb01aeea2a683fa84040725", "patch_ids": ["b900772ffaf16070ad5c6f3ee9476799"], "statement_hash": "aca5184caeda78eb5d5b9152a6295b4c451d3d7324fcbaae36c120961950e059", "relations": [{"rule": 2, "type": "equivalent", "target": "4864352d8953061a7f3e2f942fd405e2", "evidence": {"same_day": true, "patch_ids": ["b900772ffaf16070ad5c6f3ee9476799"], "statement_hash": "aca5184caeda78eb5d5b9152a6295b4c451d3d7324fcbaae36c120961950e059"}}, {"rule": 2, "type": "equivalent", "target": "968c190ce539c030cfe3824a0cddc761", "evidence": {"same_day": true, "patch_ids": ["b900772ffaf16070ad5c6f3ee9476799"], "statement_hash": "aca5184caeda78eb5d5b9152a6295b4c451d3d7324fcbaae36c120961950e059"}}, {"rule": 2, "type": "equivalent", "target": "cc9e6465c86b962c0dda27e8afcac193", "evidence": {"same_day": true, "patch_ids": ["b900772ffaf16070ad5c6f3ee9476799"], "statement_hash": "aca5184caeda78eb5d5b9152a6295b4c451d3d7324fcbaae36c120961950e059"}}, {"rule": 2, "type": "equivalent", "target": "dcc6e6d85b35d0422b8e17422a731c4a", "evidence": {"same_day": true, "patch_ids": ["b900772ffaf16070ad5c6f3ee9476799"], "statement_hash": "aca5184caeda78eb5d5b9152a6295b4c451d3d7324fcbaae36c120961950e059"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "968c190ce539c030cfe3824a0cddc761", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "不允许由子查询中的 CTE 引用决定聚合函数的语义层级", "evidence": {"same_day": true, "patch_ids": ["b900772ffaf16070ad5c6f3ee9476799"], "statement_hash": "aca5184caeda78eb5d5b9152a6295b4c451d3d7324fcbaae36c120961950e059"}, "url": "/docs/compare/?release=18.2#18.2-d6f0ddb2f2597bb2", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "cc9e6465c86b962c0dda27e8afcac193", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "不允许由子查询中的 CTE 引用决定聚合函数的语义层级", "evidence": {"same_day": true, "patch_ids": ["b900772ffaf16070ad5c6f3ee9476799"], "statement_hash": "aca5184caeda78eb5d5b9152a6295b4c451d3d7324fcbaae36c120961950e059"}, "url": "/docs/compare/?release=16.12#16.12-e79313988f03e883", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "4864352d8953061a7f3e2f942fd405e2", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "不允许由子查询中的 CTE 引用决定聚合函数的语义层级", "evidence": {"same_day": true, "patch_ids": ["b900772ffaf16070ad5c6f3ee9476799"], "statement_hash": "aca5184caeda78eb5d5b9152a6295b4c451d3d7324fcbaae36c120961950e059"}, "url": "/docs/compare/?release=15.16#15.16-dc510262703bad79", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "dcc6e6d85b35d0422b8e17422a731c4a", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "不允许由子查询中的 CTE 引用决定聚合函数的语义层级", "evidence": {"same_day": true, "patch_ids": ["b900772ffaf16070ad5c6f3ee9476799"], "statement_hash": "aca5184caeda78eb5d5b9152a6295b4c451d3d7324fcbaae36c120961950e059"}, "url": "/docs/compare/?release=14.21#14.21-9f3dcc608f8165a8", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-a05a36b6df4c6b60", "cves": [], "html": "修复 CTE 查询中 MERGE 的触发器过渡表捕获问题（Dean Rasheed）§
当执行包含 MERGE 和另一个对具有语句级 AFTER 触发器的表的 DML 操作的数据修改 CTE 查询时，传递给触发器的过渡表将不包含 MERGE 影响的行，而只包含其他操作影响的行。
修复当分区目标表的所有子表在 UPDATE 或 DELETE 操作中都被剪枝时的失败问题（Amit Langote）§
\n在这种情况下，执行器可能报告 “could not find junk ctid column” 错误，即使实际上无需执行任何操作。
", "text": "修复当分区目标表的所有子表在 UPDATE 或 DELETE 操作中都被剪枝时的失败问题（Amit Langote）§ 在这种情况下，执行器可能报告 “could not find junk ctid column” 错误，即使实际上无需执行任何操作。", "title": "修复当分区目标表的所有子表在 UPDATE 或 DELETE 操作中都被剪枝时的失败问题", "commits": ["933f67fb6"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "c083bbe031a95efa1c012a12bb38733aa4b659acfa9061e5f42389683b529c8e", "section_path": ["变更"], "commit_groups": [["687533b39", "6d2fa44d2", "933f67fb6", "9f4b7bfc5", "f9a468c66", "fab386f74"]], "identity_text": "Fix failure when all children of a partitioned target table of an update or delete have been pruned (Amit Langote) In such cases, the executor could report could not find junk ctid column errors, even though nothing needs to be done.", "commit_aliases": ["687533b39", "6d2fa44d2", "933f67fb6", "9f4b7bfc5", "f9a468c66", "fab386f74"], "source_commits": ["933f67fb6"], "source_entry_id": "17.8/changes/007", "db_id": "63da9c3d80fbdcaacf4a6c8e130df7a3", "patch_ids": ["9a0dd248bccac339f799f84ddd7d8025"], "statement_hash": "2d865ce2ec1c605811a5336cc6b79b917602006b9d88ed02a66f1499e94eb2b3", "relations": [{"rule": 2, "type": "equivalent", "target": "179b2113d34cec63f6ed7d3339773014", "evidence": {"same_day": true, "patch_ids": ["9a0dd248bccac339f799f84ddd7d8025"], "statement_hash": "2d865ce2ec1c605811a5336cc6b79b917602006b9d88ed02a66f1499e94eb2b3"}}, {"rule": 2, "type": "equivalent", "target": "4ced629daa2801c0202dec91097dd571", "evidence": {"same_day": true, "patch_ids": ["9a0dd248bccac339f799f84ddd7d8025"], "statement_hash": "2d865ce2ec1c605811a5336cc6b79b917602006b9d88ed02a66f1499e94eb2b3"}}, {"rule": 2, "type": "equivalent", "target": "7a4315af35989c84209f54d435f1bc39", "evidence": {"same_day": true, "patch_ids": ["9a0dd248bccac339f799f84ddd7d8025"], "statement_hash": "2d865ce2ec1c605811a5336cc6b79b917602006b9d88ed02a66f1499e94eb2b3"}}, {"rule": 2, "type": "equivalent", "target": "f4b5a0c770a80f36d1c78eef1f635128", "evidence": {"same_day": true, "patch_ids": ["9a0dd248bccac339f799f84ddd7d8025"], "statement_hash": "2d865ce2ec1c605811a5336cc6b79b917602006b9d88ed02a66f1499e94eb2b3"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "f4b5a0c770a80f36d1c78eef1f635128", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复当分区目标表的所有子表在 UPDATE 或 DELETE 操作中都被剪枝时的失败问题", "evidence": {"same_day": true, "patch_ids": ["9a0dd248bccac339f799f84ddd7d8025"], "statement_hash": "2d865ce2ec1c605811a5336cc6b79b917602006b9d88ed02a66f1499e94eb2b3"}, "url": "/docs/compare/?release=18.2#18.2-6f5d6058ff3801ed", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "7a4315af35989c84209f54d435f1bc39", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复当分区目标表的所有子表在 UPDATE 或 DELETE 操作中都被剪枝时的失败问题", "evidence": {"same_day": true, "patch_ids": ["9a0dd248bccac339f799f84ddd7d8025"], "statement_hash": "2d865ce2ec1c605811a5336cc6b79b917602006b9d88ed02a66f1499e94eb2b3"}, "url": "/docs/compare/?release=16.12#16.12-4f022f27b3f533c3", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "179b2113d34cec63f6ed7d3339773014", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "修复当分区目标表的所有子表在 UPDATE 或 DELETE 操作中都被剪枝时的失败问题", "evidence": {"same_day": true, "patch_ids": ["9a0dd248bccac339f799f84ddd7d8025"], "statement_hash": "2d865ce2ec1c605811a5336cc6b79b917602006b9d88ed02a66f1499e94eb2b3"}, "url": "/docs/compare/?release=15.16#15.16-fc6e34c9815a3a0c", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "4ced629daa2801c0202dec91097dd571", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "修复当分区目标表的所有子表在 UPDATE 或 DELETE 操作中都被剪枝时的失败问题", "evidence": {"same_day": true, "patch_ids": ["9a0dd248bccac339f799f84ddd7d8025"], "statement_hash": "2d865ce2ec1c605811a5336cc6b79b917602006b9d88ed02a66f1499e94eb2b3"}, "url": "/docs/compare/?release=14.21#14.21-807fef0437b28900", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-a2c5213ddb6acb5c", "cves": [], "html": "避免当查询包含重复的窗口函数调用时规划器可能出现的失败（Meng Zhang，David Rowley）§
\n对此类调用去重时的混淆可能导致诸如 “WindowFunc with winref 2 assigned to WindowAgg with winref 1” 之类的错误。
", "text": "避免当查询包含重复的窗口函数调用时规划器可能出现的失败（Meng Zhang，David Rowley）§ 对此类调用去重时的混淆可能导致诸如 “WindowFunc with winref 2 assigned to WindowAgg with winref 1” 之类的错误。", "title": "避免当查询包含重复的窗口函数调用时规划器可能出现的失败", "commits": ["cae812741"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "6db7b46f8f3a3c462f30ed00c39f1a45bde1b455b14e3fa77cdb6fada2bca501", "section_path": ["变更"], "commit_groups": [["4297a3519", "7027dd499", "cae812741", "ccde5be68"]], "identity_text": "Avoid possible planner failure when a query contains duplicate window function calls (Meng Zhang, David Rowley) Confusion over de-duplication of such calls could result in errors like WindowFunc with winref 2 assigned to WindowAgg with winref 1.", "commit_aliases": ["4297a3519", "7027dd499", "cae812741", "ccde5be68"], "source_commits": ["cae812741"], "source_entry_id": "17.8/changes/008", "db_id": "7ac52809fbfe8babeb50e09de2f149dc", "patch_ids": ["fa4bfd3b1304bc4a95cf26b478914aab"], "statement_hash": "392afbf3348f0707bd8555b9a123869d33484aee1e6cef1a77967d81fcb6e73e", "relations": [{"rule": 2, "type": "equivalent", "target": "4b3957065e21f608944a30199fa8b0a3", "evidence": {"same_day": true, "patch_ids": ["fa4bfd3b1304bc4a95cf26b478914aab"], "statement_hash": "392afbf3348f0707bd8555b9a123869d33484aee1e6cef1a77967d81fcb6e73e"}}, {"rule": 2, "type": "equivalent", "target": "74b77b8e6ab0ea1bc12ae9243c478255", "evidence": {"same_day": true, "patch_ids": ["fa4bfd3b1304bc4a95cf26b478914aab"], "statement_hash": "392afbf3348f0707bd8555b9a123869d33484aee1e6cef1a77967d81fcb6e73e"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "4b3957065e21f608944a30199fa8b0a3", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "避免当查询包含重复的窗口函数调用时规划器可能出现的失败", "evidence": {"same_day": true, "patch_ids": ["fa4bfd3b1304bc4a95cf26b478914aab"], "statement_hash": "392afbf3348f0707bd8555b9a123869d33484aee1e6cef1a77967d81fcb6e73e"}, "url": "/docs/compare/?release=18.2#18.2-339f2dc7a8d3edca", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "74b77b8e6ab0ea1bc12ae9243c478255", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "避免当查询包含重复的窗口函数调用时规划器可能出现的失败", "evidence": {"same_day": true, "patch_ids": ["fa4bfd3b1304bc4a95cf26b478914aab"], "statement_hash": "392afbf3348f0707bd8555b9a123869d33484aee1e6cef1a77967d81fcb6e73e"}, "url": "/docs/compare/?release=16.12#16.12-8fbbc59398435d48", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}]}, {"id": "17.8-845083cdcffc5df5", "cves": [], "html": "允许在部分 hash 索引上进行索引扫描，即使索引的谓词蕴含 WHERE 子句的真值（Tom Lane）§
\n通常我们会删除被谓词蕴含的 WHERE 子句，因为测试它没有意义——对于每个索引条目，该条件必然成立。然而，如果索引是需要在前导索引键上有 WHERE 子句的类型（如 hash 索引），这样做可能阻止创建索引扫描计划。在考虑此类索引时，不要删除被蕴含的子句。
", "text": "允许在部分 hash 索引上进行索引扫描，即使索引的谓词蕴含 WHERE 子句的真值（Tom Lane）§ 通常我们会删除被谓词蕴含的 WHERE 子句，因为测试它没有意义——对于每个索引条目，该条件必然成立。然而，如果索引是需要在前导索引键上有 WHERE 子句的类型（如 hash 索引），这样做可能阻止创建索引扫描计划。在考虑此类索引时，不要删除被蕴含的子句。", "title": "允许在部分 hash 索引上进行索引扫描，即使索引的谓词蕴含 WHERE 子句的真值", "commits": ["e79b27662"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "770c0f30e04264a1bf6777fad19f5cd3fe1a691284c7669cc3c4f98b06bcf061", "section_path": ["变更"], "commit_groups": [["5528e8d10", "9e77323fc", "a212877dc", "b497766a8", "e79b27662", "f19502f04"]], "identity_text": "Allow indexscans on partial hash indexes even when the index's predicate implies the truth of the WHERE clause (Tom Lane) Normally we drop a WHERE clause that is implied by the predicate, since it's pointless to test it; it must hold for every index entry. However that can prevent creation of an indexscan plan if the index is one that requires a WHERE clause on the leading index key, as hash indexes do. Don't drop implied clauses when considering such an index.", "commit_aliases": ["5528e8d10", "9e77323fc", "a212877dc", "b497766a8", "e79b27662", "f19502f04"], "source_commits": ["e79b27662"], "source_entry_id": "17.8/changes/009", "db_id": "46491fe43c6b06ae0b36463bb9ec508d", "patch_ids": ["371e0fb22b0b4c3ce7000e6e8780d0ab"], "statement_hash": "978f69342e3def3b8ca6380a3dacf1634fda30feb1db7c0f20d33cad5e6b4dac", "relations": [{"rule": 2, "type": "equivalent", "target": "b1cd37aac266a35b85d498fbf852a341", "evidence": {"same_day": true, "patch_ids": ["371e0fb22b0b4c3ce7000e6e8780d0ab"], "statement_hash": "978f69342e3def3b8ca6380a3dacf1634fda30feb1db7c0f20d33cad5e6b4dac"}}, {"rule": 2, "type": "equivalent", "target": "be90b044d06ac445fb5ba563113882da", "evidence": {"same_day": true, "patch_ids": ["371e0fb22b0b4c3ce7000e6e8780d0ab"], "statement_hash": "978f69342e3def3b8ca6380a3dacf1634fda30feb1db7c0f20d33cad5e6b4dac"}}, {"rule": 2, "type": "equivalent", "target": "ed2a57d1a47eb0ac687c6d995081429b", "evidence": {"same_day": true, "patch_ids": ["371e0fb22b0b4c3ce7000e6e8780d0ab"], "statement_hash": "978f69342e3def3b8ca6380a3dacf1634fda30feb1db7c0f20d33cad5e6b4dac"}}, {"rule": 2, "type": "equivalent", "target": "f2b4b6b2c2b28f97888464f6ce6ad3fa", "evidence": {"same_day": true, "patch_ids": ["371e0fb22b0b4c3ce7000e6e8780d0ab"], "statement_hash": "978f69342e3def3b8ca6380a3dacf1634fda30feb1db7c0f20d33cad5e6b4dac"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "ed2a57d1a47eb0ac687c6d995081429b", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "允许在部分 hash 索引上进行索引扫描，即使索引的谓词蕴含 WHERE 子句的真值", "evidence": {"same_day": true, "patch_ids": ["371e0fb22b0b4c3ce7000e6e8780d0ab"], "statement_hash": "978f69342e3def3b8ca6380a3dacf1634fda30feb1db7c0f20d33cad5e6b4dac"}, "url": "/docs/compare/?release=18.2#18.2-61e225cdb2ce1f36", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "be90b044d06ac445fb5ba563113882da", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "允许在部分 hash 索引上进行索引扫描，即使索引的谓词蕴含 WHERE 子句的真值", "evidence": {"same_day": true, "patch_ids": ["371e0fb22b0b4c3ce7000e6e8780d0ab"], "statement_hash": "978f69342e3def3b8ca6380a3dacf1634fda30feb1db7c0f20d33cad5e6b4dac"}, "url": "/docs/compare/?release=16.12#16.12-576930101da7e4de", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "b1cd37aac266a35b85d498fbf852a341", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "允许在部分 hash 索引上进行索引扫描，即使索引的谓词蕴含 WHERE 子句的真值", "evidence": {"same_day": true, "patch_ids": ["371e0fb22b0b4c3ce7000e6e8780d0ab"], "statement_hash": "978f69342e3def3b8ca6380a3dacf1634fda30feb1db7c0f20d33cad5e6b4dac"}, "url": "/docs/compare/?release=15.16#15.16-818eabd46b773ca1", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "f2b4b6b2c2b28f97888464f6ce6ad3fa", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "允许在部分 hash 索引上进行索引扫描，即使索引的谓词蕴含 WHERE 子句的真值", "evidence": {"same_day": true, "patch_ids": ["371e0fb22b0b4c3ce7000e6e8780d0ab"], "statement_hash": "978f69342e3def3b8ca6380a3dacf1634fda30feb1db7c0f20d33cad5e6b4dac"}, "url": "/docs/compare/?release=14.21#14.21-a5950a5bc8025cc6", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-91a20d38e502ab15", "cves": [], "html": "不要为不记录 WAL 的 BRIN 索引生成 WAL（Kirill Reshke）§
\n一条很少执行到的代码路径错误地为 BRIN 索引生成了 WAL 记录，即使该索引被标记为不记录 WAL。崩溃恢复时将无法重放该记录，并报告文件已存在的错误。
", "text": "不要为不记录 WAL 的 BRIN 索引生成 WAL（Kirill Reshke）§ 一条很少执行到的代码路径错误地为 BRIN 索引生成了 WAL 记录，即使该索引被标记为不记录 WAL。崩溃恢复时将无法重放该记录，并报告文件已存在的错误。", "title": "不要为不记录 WAL 的 BRIN 索引生成 WAL", "commits": ["4b6d096a0"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "2ae64889251c756300604127ceb68d5d8fc0c912bce2f2ecc85e0814bb9bbc61", "section_path": ["变更"], "commit_groups": [["460d97020", "4b6d096a0", "951b60f7a", "a5277700e", "ab4256869", "d77a5f981"]], "identity_text": "Do not emit WAL for unlogged BRIN indexes (Kirill Reshke) One seldom-taken code path incorrectly emitted a WAL record relating to a BRIN index even if the index was marked unlogged. Crash recovery would then fail to replay that record, complaining that the file already exists.", "commit_aliases": ["460d97020", "4b6d096a0", "951b60f7a", "a5277700e", "ab4256869", "d77a5f981"], "source_commits": ["4b6d096a0"], "source_entry_id": "17.8/changes/010", "db_id": "293acf13040f24b30864b10bd699a3a0", "patch_ids": ["548b71793684eb7a3b4dc68f7e774931"], "statement_hash": "14bc5b9ab44a24425a2aaf5ae8e65539cd475fa7e779fdd338932c2bec859e4f", "relations": [{"rule": 2, "type": "equivalent", "target": "0937f4c4aaa8ff37a519ed8e315b4268", "evidence": {"same_day": true, "patch_ids": ["548b71793684eb7a3b4dc68f7e774931"], "statement_hash": "14bc5b9ab44a24425a2aaf5ae8e65539cd475fa7e779fdd338932c2bec859e4f"}}, {"rule": 2, "type": "equivalent", "target": "5e595f6d6c44016c34bfdd305d261a1f", "evidence": {"same_day": true, "patch_ids": ["548b71793684eb7a3b4dc68f7e774931"], "statement_hash": "14bc5b9ab44a24425a2aaf5ae8e65539cd475fa7e779fdd338932c2bec859e4f"}}, {"rule": 2, "type": "equivalent", "target": "a7d18f384393c9a111537f87704719de", "evidence": {"same_day": true, "patch_ids": ["548b71793684eb7a3b4dc68f7e774931"], "statement_hash": "14bc5b9ab44a24425a2aaf5ae8e65539cd475fa7e779fdd338932c2bec859e4f"}}, {"rule": 2, "type": "equivalent", "target": "e2905bab9de145b119d05715dee49169", "evidence": {"same_day": true, "patch_ids": ["548b71793684eb7a3b4dc68f7e774931"], "statement_hash": "14bc5b9ab44a24425a2aaf5ae8e65539cd475fa7e779fdd338932c2bec859e4f"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "0937f4c4aaa8ff37a519ed8e315b4268", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "不要为不记录 WAL 的 BRIN 索引生成 WAL", "evidence": {"same_day": true, "patch_ids": ["548b71793684eb7a3b4dc68f7e774931"], "statement_hash": "14bc5b9ab44a24425a2aaf5ae8e65539cd475fa7e779fdd338932c2bec859e4f"}, "url": "/docs/compare/?release=18.2#18.2-569b26ba06e60ceb", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "a7d18f384393c9a111537f87704719de", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "不要为不记录 WAL 的 BRIN 索引生成 WAL", "evidence": {"same_day": true, "patch_ids": ["548b71793684eb7a3b4dc68f7e774931"], "statement_hash": "14bc5b9ab44a24425a2aaf5ae8e65539cd475fa7e779fdd338932c2bec859e4f"}, "url": "/docs/compare/?release=16.12#16.12-1d78fb1ed6b323ce", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "5e595f6d6c44016c34bfdd305d261a1f", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "不要为不记录 WAL 的 BRIN 索引生成 WAL", "evidence": {"same_day": true, "patch_ids": ["548b71793684eb7a3b4dc68f7e774931"], "statement_hash": "14bc5b9ab44a24425a2aaf5ae8e65539cd475fa7e779fdd338932c2bec859e4f"}, "url": "/docs/compare/?release=15.16#15.16-a50c7a9a9c1966f8", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "e2905bab9de145b119d05715dee49169", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "不要为不记录 WAL 的 BRIN 索引生成 WAL", "evidence": {"same_day": true, "patch_ids": ["548b71793684eb7a3b4dc68f7e774931"], "statement_hash": "14bc5b9ab44a24425a2aaf5ae8e65539cd475fa7e779fdd338932c2bec859e4f"}, "url": "/docs/compare/?release=14.21#14.21-7a0553ecbce106c9", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-4391ac8372980d16", "cves": [], "html": "防止截断未读 NOTIFY 消息仍然需要的 CLOG（Joel Jacobson，Heikki Linnakangas）§ § §
此修复防止了当后端进程吸收 NOTIFY 消息较慢时出现的 “could not access status of transaction” 错误。
将 NOTIFY 消息处理期间发生的错误升级为 FATAL，即关闭连接（Heikki Linnakangas）§
以前，如果后端在吸收 NOTIFY 消息时遇到错误，它会跳过该消息，向客户端报告错误，然后继续运行。但这种行为存在很多问题。一个主要问题是，客户端没有好的方法来知道通知丢失了，更无法知道通知的内容是什么。根据应用逻辑的不同，错过一条通知可能导致应用程序卡在等待状态。此外，剩余的消息在有人发送新的 NOTIFY 之前不会被处理。
另外，如果连接在接收到 NOTIFY 信号时处于空闲状态，由于无关的原因，任何 ERROR 都会被升级为 FATAL。因此，我们选择在所有情况下都这样做，以保持一致性，并向应用程序提供一个明确的信号，表明它可能错过了一些通知。
修复在发生并发更新时 EXPLAIN ANALYZE MERGE 对更新计数错误的问题（Dean Rasheed）§
这种情况会导致 EXPLAIN 输出中的 “skipped” 元组计数错误，或者在启用断言的构建中引发断言失败。
修复在锁定元组时跟踪更新链的错误（Jasper Smit）§
\n此代码路径忽略了检查更新链中第一个新元组的 xmin，使得在原始更新者中止且空间被 VACUUM 立即回收并重新使用的情况下，可能会锁定一个不相关的元组。这可能导致意外的事务延迟或死锁。与识别到错误元组相关的错误也已被观察到。
修复原地更新系统目录时的问题（Noah Misch）§ § §
\n对于原地更新，发送非事务性的失效消息，因为此类更新在事务回滚后仍会保留。同时，确保该更新在其他会话可见之前已经写入 WAL。这些修复主要防止关系的 frozen-XID 属性出现不一致，从而避免 CLOG 被过早截断并随后出现 “could not access status of transaction” 错误。
", "text": "修复原地更新系统目录时的问题（Noah Misch）§ § § 对于原地更新，发送非事务性的失效消息，因为此类更新在事务回滚后仍会保留。同时，确保该更新在其他会话可见之前已经写入 WAL。这些修复主要防止关系的 frozen-XID 属性出现不一致，从而避免 CLOG 被过早截断并随后出现 “could not access status of transaction” 错误。", "title": "修复原地更新系统目录时的问题", "commits": ["0f69bedde", "bcb784e7d", "d3e5d8950"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "af0dd5d9953146cdd38d153f968f4bcfb04abcf63b67128386f241a1a686902d", "section_path": ["变更"], "commit_groups": [["05d605b6c", "0f69bedde", "1d7b02711", "811422471"], ["0dfbd191a", "27e4fad98", "86091202a", "bcb784e7d"], ["20a48c156", "720e9304f", "d3e5d8950", "e4b1986b9"]], "identity_text": "Fix issues around in-place catalog updates (Noah Misch) Send a nontransactional invalidation message for an in-place update, since such an update will survive transaction rollback. Also ensure that the update is WAL-logged before other sessions can see it. These fixes primarily prevent scenarios in which relations' frozen-XID attributes become inconsistent, possibly allowing premature CLOG truncation and subsequent could not access status of transaction errors.", "commit_aliases": ["05d605b6c", "0dfbd191a", "0f69bedde", "1d7b02711", "20a48c156", "27e4fad98", "720e9304f", "811422471", "86091202a", "bcb784e7d", "d3e5d8950", "e4b1986b9"], "source_commits": ["0f69bedde", "bcb784e7d", "d3e5d8950"], "source_entry_id": "17.8/changes/015", "db_id": "577989fe6b9f208495ce6a7ab6b002c6", "patch_ids": ["1d2a4559a8d7276dbf544ec3c3139d64", "810b6ce6361bfec35a8994954d64ee9a", "eed66ab080408c0e6d006c6433746be2"], "statement_hash": "33139139d6db8add9f0014229fa4e27308c3f7fb8f4aeed7bb35cbc7df54153a", "relations": [{"rule": 2, "type": "equivalent", "target": "1a1ca89a6f8b8a26e2fdc5c3adffee40", "evidence": {"same_day": true, "patch_ids": ["1d2a4559a8d7276dbf544ec3c3139d64", "810b6ce6361bfec35a8994954d64ee9a", "eed66ab080408c0e6d006c6433746be2"], "statement_hash": "33139139d6db8add9f0014229fa4e27308c3f7fb8f4aeed7bb35cbc7df54153a"}}, {"rule": 2, "type": "equivalent", "target": "24d2c263d61d870ad15e04e37b9be312", "evidence": {"same_day": true, "patch_ids": ["1d2a4559a8d7276dbf544ec3c3139d64", "810b6ce6361bfec35a8994954d64ee9a", "eed66ab080408c0e6d006c6433746be2"], "statement_hash": "33139139d6db8add9f0014229fa4e27308c3f7fb8f4aeed7bb35cbc7df54153a"}}, {"rule": 2, "type": "equivalent", "target": "7e9c59cfc9b17218ff9e506d4b425a25", "evidence": {"same_day": true, "patch_ids": ["1d2a4559a8d7276dbf544ec3c3139d64", "810b6ce6361bfec35a8994954d64ee9a", "eed66ab080408c0e6d006c6433746be2"], "statement_hash": "33139139d6db8add9f0014229fa4e27308c3f7fb8f4aeed7bb35cbc7df54153a"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "24d2c263d61d870ad15e04e37b9be312", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复原地更新系统目录时的问题", "evidence": {"same_day": true, "patch_ids": ["1d2a4559a8d7276dbf544ec3c3139d64", "810b6ce6361bfec35a8994954d64ee9a", "eed66ab080408c0e6d006c6433746be2"], "statement_hash": "33139139d6db8add9f0014229fa4e27308c3f7fb8f4aeed7bb35cbc7df54153a"}, "url": "/docs/compare/?release=16.12#16.12-3bb47161eed5f310", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "1a1ca89a6f8b8a26e2fdc5c3adffee40", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "修复原地更新系统目录时的问题", "evidence": {"same_day": true, "patch_ids": ["1d2a4559a8d7276dbf544ec3c3139d64", "810b6ce6361bfec35a8994954d64ee9a", "eed66ab080408c0e6d006c6433746be2"], "statement_hash": "33139139d6db8add9f0014229fa4e27308c3f7fb8f4aeed7bb35cbc7df54153a"}, "url": "/docs/compare/?release=15.16#15.16-3bb47161eed5f310", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "7e9c59cfc9b17218ff9e506d4b425a25", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "修复原地更新系统目录时的问题", "evidence": {"same_day": true, "patch_ids": ["1d2a4559a8d7276dbf544ec3c3139d64", "810b6ce6361bfec35a8994954d64ee9a", "eed66ab080408c0e6d006c6433746be2"], "statement_hash": "33139139d6db8add9f0014229fa4e27308c3f7fb8f4aeed7bb35cbc7df54153a"}, "url": "/docs/compare/?release=14.21#14.21-3bb47161eed5f310", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-9171e2849738082f", "cves": [], "html": "修复对大表增量备份处理不正确的问题（Robert Haas、Oleg Tkachenko）§
\n如果一个超过 1GB 的表（更一般地说，超过安装的段大小的表）在基础备份和增量备份之间被 VACUUM 截断，pg_combinebackup 可能会因 “truncation block length in excess of segment size” 错误而失败，从而无法恢复该增量备份。
修复后端进程在退出时由于尝试在已取消映射的共享内存段中释放锁而可能崩溃的问题（Rahila Syed）§
", "text": "修复后端进程在退出时由于尝试在已取消映射的共享内存段中释放锁而可能崩溃的问题（Rahila Syed）§", "title": "修复后端进程在退出时由于尝试在已取消映射的共享内存段中释放锁而可能崩溃的问题", "commits": ["4071fe900"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "9083f4f6522b163b1b2786ae037c69cacbae890835a8a3956a2f58bbfd79f92f", "section_path": ["变更"], "commit_groups": [["1943ceb38", "4071fe900", "980b7c736", "9cbb1d21d", "b926ff137", "f6df78173"]], "identity_text": "Fix potential backend process crash at process exit due to trying to release a lock in an already-unmapped shared memory segment (Rahila Syed)", "commit_aliases": ["1943ceb38", "4071fe900", "980b7c736", "9cbb1d21d", "b926ff137", "f6df78173"], "source_commits": ["4071fe900"], "source_entry_id": "17.8/changes/017", "db_id": "d2811b8c558ee3336f69ce2dee648262", "patch_ids": ["126653f8f3297278586a3928c56e06f3"], "statement_hash": "92dcd4d1c3bd738dad9644948eb1cd6efd94bdefcd3219e424732f890c0bceb3", "relations": [{"rule": 2, "type": "equivalent", "target": "125f7282ee77b2dbf96db553539c22c4", "evidence": {"same_day": true, "patch_ids": ["126653f8f3297278586a3928c56e06f3"], "statement_hash": "92dcd4d1c3bd738dad9644948eb1cd6efd94bdefcd3219e424732f890c0bceb3"}}, {"rule": 2, "type": "equivalent", "target": "45af7190ae2808ef37392b8f701626cf", "evidence": {"same_day": true, "patch_ids": ["126653f8f3297278586a3928c56e06f3"], "statement_hash": "92dcd4d1c3bd738dad9644948eb1cd6efd94bdefcd3219e424732f890c0bceb3"}}, {"rule": 2, "type": "equivalent", "target": "5ad3db5c0edaa4934f3f9d9b4709c52d", "evidence": {"same_day": true, "patch_ids": ["126653f8f3297278586a3928c56e06f3"], "statement_hash": "92dcd4d1c3bd738dad9644948eb1cd6efd94bdefcd3219e424732f890c0bceb3"}}, {"rule": 2, "type": "equivalent", "target": "7be6eebc70de0b6a710a45541a4092f0", "evidence": {"same_day": true, "patch_ids": ["126653f8f3297278586a3928c56e06f3"], "statement_hash": "92dcd4d1c3bd738dad9644948eb1cd6efd94bdefcd3219e424732f890c0bceb3"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "5ad3db5c0edaa4934f3f9d9b4709c52d", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复后端进程在退出时由于尝试在已取消映射的共享内存段中释放锁而可能崩溃的问题", "evidence": {"same_day": true, "patch_ids": ["126653f8f3297278586a3928c56e06f3"], "statement_hash": "92dcd4d1c3bd738dad9644948eb1cd6efd94bdefcd3219e424732f890c0bceb3"}, "url": "/docs/compare/?release=18.2#18.2-c5a2be58244ca433", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "7be6eebc70de0b6a710a45541a4092f0", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复后端进程在退出时由于尝试在已取消映射的共享内存段中释放锁而可能崩溃的问题", "evidence": {"same_day": true, "patch_ids": ["126653f8f3297278586a3928c56e06f3"], "statement_hash": "92dcd4d1c3bd738dad9644948eb1cd6efd94bdefcd3219e424732f890c0bceb3"}, "url": "/docs/compare/?release=16.12#16.12-a697dba42d12b45f", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "125f7282ee77b2dbf96db553539c22c4", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "修复后端进程在退出时由于尝试在已取消映射的共享内存段中释放锁而可能崩溃的问题", "evidence": {"same_day": true, "patch_ids": ["126653f8f3297278586a3928c56e06f3"], "statement_hash": "92dcd4d1c3bd738dad9644948eb1cd6efd94bdefcd3219e424732f890c0bceb3"}, "url": "/docs/compare/?release=15.16#15.16-4db75c5b481234d4", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "45af7190ae2808ef37392b8f701626cf", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "修复后端进程在退出时由于尝试在已取消映射的共享内存段中释放锁而可能崩溃的问题", "evidence": {"same_day": true, "patch_ids": ["126653f8f3297278586a3928c56e06f3"], "statement_hash": "92dcd4d1c3bd738dad9644948eb1cd6efd94bdefcd3219e424732f890c0bceb3"}, "url": "/docs/compare/?release=14.21#14.21-c6d749d8181b360c", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-9e854c237f5aabf9", "cves": [], "html": "防止崩溃后多事务日志被错误截断（Heikki Linnakangas）§
", "text": "防止崩溃后多事务日志被错误截断（Heikki Linnakangas）§", "title": "防止崩溃后多事务日志被错误截断", "commits": ["d3ad4cef6"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "d15c1d0c5dc3e478fc6042712d9657566501a872a8b859a05e95e9e951f597b9", "section_path": ["变更"], "commit_groups": [["09532a78b", "102bdaa9b", "46be454ca", "a563ac619", "c7946e6f3", "d3ad4cef6"]], "identity_text": "Guard against incorrect truncation of the multixact log after a crash (Heikki Linnakangas)", "commit_aliases": ["09532a78b", "102bdaa9b", "46be454ca", "a563ac619", "c7946e6f3", "d3ad4cef6"], "source_commits": ["d3ad4cef6"], "source_entry_id": "17.8/changes/018", "db_id": "423a226c0afa155ba2f8b3bf4d809b9b", "patch_ids": ["67a73a4872f6b3f005ad7fe4e9077027"], "statement_hash": "dfecdaac190eb4e172c44ceae68abad6d5cc283f60c6a947351bcef843a944ad", "relations": [{"rule": 2, "type": "equivalent", "target": "06c8d0231b48925fde45dbbe5447711a", "evidence": {"same_day": true, "patch_ids": ["67a73a4872f6b3f005ad7fe4e9077027"], "statement_hash": "dfecdaac190eb4e172c44ceae68abad6d5cc283f60c6a947351bcef843a944ad"}}, {"rule": 2, "type": "equivalent", "target": "3a7694cde691f1c0a64647d256362d79", "evidence": {"same_day": true, "patch_ids": ["67a73a4872f6b3f005ad7fe4e9077027"], "statement_hash": "dfecdaac190eb4e172c44ceae68abad6d5cc283f60c6a947351bcef843a944ad"}}, {"rule": 2, "type": "equivalent", "target": "543d98a0d64e54acd061d5327cda0d92", "evidence": {"same_day": true, "patch_ids": ["67a73a4872f6b3f005ad7fe4e9077027"], "statement_hash": "dfecdaac190eb4e172c44ceae68abad6d5cc283f60c6a947351bcef843a944ad"}}, {"rule": 2, "type": "equivalent", "target": "98b43daf45e235647020ad11a022bebb", "evidence": {"same_day": true, "patch_ids": ["67a73a4872f6b3f005ad7fe4e9077027"], "statement_hash": "dfecdaac190eb4e172c44ceae68abad6d5cc283f60c6a947351bcef843a944ad"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "3a7694cde691f1c0a64647d256362d79", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "防止崩溃后多事务日志被错误截断", "evidence": {"same_day": true, "patch_ids": ["67a73a4872f6b3f005ad7fe4e9077027"], "statement_hash": "dfecdaac190eb4e172c44ceae68abad6d5cc283f60c6a947351bcef843a944ad"}, "url": "/docs/compare/?release=18.2#18.2-8b23c352cad22240", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "543d98a0d64e54acd061d5327cda0d92", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "防止崩溃后多事务日志被错误截断", "evidence": {"same_day": true, "patch_ids": ["67a73a4872f6b3f005ad7fe4e9077027"], "statement_hash": "dfecdaac190eb4e172c44ceae68abad6d5cc283f60c6a947351bcef843a944ad"}, "url": "/docs/compare/?release=16.12#16.12-1dcc130cbed466e7", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "98b43daf45e235647020ad11a022bebb", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "防止崩溃后多事务日志被错误截断", "evidence": {"same_day": true, "patch_ids": ["67a73a4872f6b3f005ad7fe4e9077027"], "statement_hash": "dfecdaac190eb4e172c44ceae68abad6d5cc283f60c6a947351bcef843a944ad"}, "url": "/docs/compare/?release=15.16#15.16-1c33da61822d76af", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "06c8d0231b48925fde45dbbe5447711a", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "防止崩溃后多事务日志被错误截断", "evidence": {"same_day": true, "patch_ids": ["67a73a4872f6b3f005ad7fe4e9077027"], "statement_hash": "dfecdaac190eb4e172c44ceae68abad6d5cc283f60c6a947351bcef843a944ad"}, "url": "/docs/compare/?release=14.21#14.21-82a8e8c00098deab", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-5b4587fee1692efc", "cves": [], "html": "修复 pg_stat_get_backend_activity() 可能返回编码错误的结果的问题（Chao Li）§
保存会话活动字符串的共享内存缓冲区末尾可能包含不完整的多字节字符。读取者应该截断掉任何此类不完整字符，但此函数未能做到这一点。
", "text": "修复 pg_stat_get_backend_activity() 可能返回编码错误的结果的问题（Chao Li）§ 保存会话活动字符串的共享内存缓冲区末尾可能包含不完整的多字节字符。读取者应该截断掉任何此类不完整字符，但此函数未能做到这一点。", "title": "修复 pg_stat_get_backend_activity() 可能返回编码错误的结果的问题", "commits": ["52b27f585"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "c376ee42551e0a693b2083038ef873dc7a6a3d36a88e15eb4c998682c33e7e83", "section_path": ["变更"], "commit_groups": [["06907e864", "300575fe2", "36b8f4974", "52b27f585", "c48829ed8", "ea3524cff"]], "identity_text": "Fix possibly mis-encoded result of pg_stat_get_backend_activity() (Chao Li) The shared-memory buffer holding a session's activity string can end with an incomplete multibyte character. Readers are supposed to truncate off any such incomplete character, but this function failed to do so.", "commit_aliases": ["06907e864", "300575fe2", "36b8f4974", "52b27f585", "c48829ed8", "ea3524cff"], "source_commits": ["52b27f585"], "source_entry_id": "17.8/changes/019", "db_id": "962171149258cdfb98c25d6f7cda03e4", "patch_ids": ["b809be4e7827182df22fb9f71f25cf1d"], "statement_hash": "18f9c2bfb3fe8f5033800a59729a09db060ed74ea247b46aee7ee09268737178", "relations": [{"rule": 2, "type": "equivalent", "target": "1d61f99b846c4ede8289346c443c6eab", "evidence": {"same_day": true, "patch_ids": ["b809be4e7827182df22fb9f71f25cf1d"], "statement_hash": "18f9c2bfb3fe8f5033800a59729a09db060ed74ea247b46aee7ee09268737178"}}, {"rule": 2, "type": "equivalent", "target": "2011af15ea6d97b67e6182e61860c8c7", "evidence": {"same_day": true, "patch_ids": ["b809be4e7827182df22fb9f71f25cf1d"], "statement_hash": "18f9c2bfb3fe8f5033800a59729a09db060ed74ea247b46aee7ee09268737178"}}, {"rule": 2, "type": "equivalent", "target": "3fc6fbb291fd58ddb3732e1040a55913", "evidence": {"same_day": true, "patch_ids": ["b809be4e7827182df22fb9f71f25cf1d"], "statement_hash": "18f9c2bfb3fe8f5033800a59729a09db060ed74ea247b46aee7ee09268737178"}}, {"rule": 2, "type": "equivalent", "target": "c6e97abc5a7f6b7dd2f4f8bbf960d054", "evidence": {"same_day": true, "patch_ids": ["b809be4e7827182df22fb9f71f25cf1d"], "statement_hash": "18f9c2bfb3fe8f5033800a59729a09db060ed74ea247b46aee7ee09268737178"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "2011af15ea6d97b67e6182e61860c8c7", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复 pg_stat_get_backend_activity() 可能返回编码错误的结果的问题", "evidence": {"same_day": true, "patch_ids": ["b809be4e7827182df22fb9f71f25cf1d"], "statement_hash": "18f9c2bfb3fe8f5033800a59729a09db060ed74ea247b46aee7ee09268737178"}, "url": "/docs/compare/?release=18.2#18.2-08c685de487e23d3", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "3fc6fbb291fd58ddb3732e1040a55913", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复 pg_stat_get_backend_activity() 可能返回编码错误的结果的问题", "evidence": {"same_day": true, "patch_ids": ["b809be4e7827182df22fb9f71f25cf1d"], "statement_hash": "18f9c2bfb3fe8f5033800a59729a09db060ed74ea247b46aee7ee09268737178"}, "url": "/docs/compare/?release=16.12#16.12-5dda0d4807cb6225", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "c6e97abc5a7f6b7dd2f4f8bbf960d054", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "修复 pg_stat_get_backend_activity() 可能返回编码错误的结果的问题", "evidence": {"same_day": true, "patch_ids": ["b809be4e7827182df22fb9f71f25cf1d"], "statement_hash": "18f9c2bfb3fe8f5033800a59729a09db060ed74ea247b46aee7ee09268737178"}, "url": "/docs/compare/?release=15.16#15.16-cd833dd2d455a71f", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "1d61f99b846c4ede8289346c443c6eab", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "修复 pg_stat_get_backend_activity() 可能返回编码错误的结果的问题", "evidence": {"same_day": true, "patch_ids": ["b809be4e7827182df22fb9f71f25cf1d"], "statement_hash": "18f9c2bfb3fe8f5033800a59729a09db060ed74ea247b46aee7ee09268737178"}, "url": "/docs/compare/?release=14.21#14.21-e2ab71f43353e5cd", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-a1b611399d727246", "cves": [], "html": "防止递归的内存上下文日志记录（Fujii Masao）§
\n持续不断的请求内存上下文日志记录的信号流可能导致日志记录代码的递归执行，理论上可能导致栈溢出。
", "text": "防止递归的内存上下文日志记录（Fujii Masao）§ 持续不断的请求内存上下文日志记录的信号流可能导致日志记录代码的递归执行，理论上可能导致栈溢出。", "title": "防止递归的内存上下文日志记录", "commits": ["699293d27"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "61ee8bd74049d1cd9cd5af4917dece881e453c8083ec236ad57e047861176204", "section_path": ["变更"], "commit_groups": [["0fc2f533a", "1a9a49699", "3853f6168", "699293d27", "b3ccb0a2c", "b863d8d87"]], "identity_text": "Guard against recursive memory context logging (Fujii Masao) A constant flow of signals requesting memory context logging could cause recursive execution of the logging code, which in theory could lead to stack overflow.", "commit_aliases": ["0fc2f533a", "1a9a49699", "3853f6168", "699293d27", "b3ccb0a2c", "b863d8d87"], "source_commits": ["699293d27"], "source_entry_id": "17.8/changes/020", "db_id": "76d6a4cdde5956fd5fdf83af6a0f6953", "patch_ids": ["5f2e29ee0f0a335aba7ffbb8c5262c9e"], "statement_hash": "b5c2d3f4f692a615b47c23616523ca27bef0dcd03455868cfc0d756ea0575dd4", "relations": [{"rule": 2, "type": "equivalent", "target": "6911fcfb9b3a10c2cb527c328b7e80dd", "evidence": {"same_day": true, "patch_ids": ["5f2e29ee0f0a335aba7ffbb8c5262c9e"], "statement_hash": "b5c2d3f4f692a615b47c23616523ca27bef0dcd03455868cfc0d756ea0575dd4"}}, {"rule": 2, "type": "equivalent", "target": "69b5630e62f581864e385c3537959829", "evidence": {"same_day": true, "patch_ids": ["5f2e29ee0f0a335aba7ffbb8c5262c9e"], "statement_hash": "b5c2d3f4f692a615b47c23616523ca27bef0dcd03455868cfc0d756ea0575dd4"}}, {"rule": 2, "type": "equivalent", "target": "cdc054743d9f7923ca54a8a0dd5eba4d", "evidence": {"same_day": true, "patch_ids": ["5f2e29ee0f0a335aba7ffbb8c5262c9e"], "statement_hash": "b5c2d3f4f692a615b47c23616523ca27bef0dcd03455868cfc0d756ea0575dd4"}}, {"rule": 2, "type": "equivalent", "target": "e532d3e562a8bcd039083d7610c4fe02", "evidence": {"same_day": true, "patch_ids": ["5f2e29ee0f0a335aba7ffbb8c5262c9e"], "statement_hash": "b5c2d3f4f692a615b47c23616523ca27bef0dcd03455868cfc0d756ea0575dd4"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "e532d3e562a8bcd039083d7610c4fe02", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "防止递归的内存上下文日志记录", "evidence": {"same_day": true, "patch_ids": ["5f2e29ee0f0a335aba7ffbb8c5262c9e"], "statement_hash": "b5c2d3f4f692a615b47c23616523ca27bef0dcd03455868cfc0d756ea0575dd4"}, "url": "/docs/compare/?release=18.2#18.2-92cabc87c606add7", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "cdc054743d9f7923ca54a8a0dd5eba4d", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "防止递归的内存上下文日志记录", "evidence": {"same_day": true, "patch_ids": ["5f2e29ee0f0a335aba7ffbb8c5262c9e"], "statement_hash": "b5c2d3f4f692a615b47c23616523ca27bef0dcd03455868cfc0d756ea0575dd4"}, "url": "/docs/compare/?release=16.12#16.12-2616fc2b052bb88f", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "6911fcfb9b3a10c2cb527c328b7e80dd", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "防止递归的内存上下文日志记录", "evidence": {"same_day": true, "patch_ids": ["5f2e29ee0f0a335aba7ffbb8c5262c9e"], "statement_hash": "b5c2d3f4f692a615b47c23616523ca27bef0dcd03455868cfc0d756ea0575dd4"}, "url": "/docs/compare/?release=15.16#15.16-c5eabf46f29ea686", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "69b5630e62f581864e385c3537959829", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "防止递归的内存上下文日志记录", "evidence": {"same_day": true, "patch_ids": ["5f2e29ee0f0a335aba7ffbb8c5262c9e"], "statement_hash": "b5c2d3f4f692a615b47c23616523ca27bef0dcd03455868cfc0d756ea0575dd4"}, "url": "/docs/compare/?release=14.21#14.21-0397158066e277a7", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-cdcf22c5f5200747", "cves": [], "html": "修复重新初始化并行执行上下文时的内存上下文使用问题（Jakub Wartak，Jeevan Chalke）§
\n此错误可能由于附属数据结构的生命周期比并行上下文更短而导致崩溃。目前尚未发现仅使用 PostgreSQL 核心就能触发该问题的情况，但我们收到了扩展中出现问题的报告。
", "text": "修复重新初始化并行执行上下文时的内存上下文使用问题（Jakub Wartak，Jeevan Chalke）§ 此错误可能由于附属数据结构的生命周期比并行上下文更短而导致崩溃。目前尚未发现仅使用 PostgreSQL 核心就能触发该问题的情况，但我们收到了扩展中出现问题的报告。", "title": "修复重新初始化并行执行上下文时的内存上下文使用问题", "commits": ["1d0fc2499"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "bb5a62b2fb3bf6bbb4149b00fd387afd1a14c8c756e85bafee83092877bdb0df", "section_path": ["变更"], "commit_groups": [["12c2f843c", "1d0fc2499", "1d9f7fbba", "57df5ab80", "bd2726d3e", "f1a6e622b"]], "identity_text": "Fix memory context usage when reinitializing a parallel execution context (Jakub Wartak, Jeevan Chalke) This error could result in a crash due to a subsidiary data structure having a shorter lifespan than the parallel context. The problem is not known to be reachable using only core PostgreSQL, but we have reports of trouble in extensions.", "commit_aliases": ["12c2f843c", "1d0fc2499", "1d9f7fbba", "57df5ab80", "bd2726d3e", "f1a6e622b"], "source_commits": ["1d0fc2499"], "source_entry_id": "17.8/changes/021", "db_id": "c0e0fccdb1ff80df5a7c450903b3c742", "patch_ids": ["4c076010d0ab56e908326be07c1b73c6"], "statement_hash": "b3c3fe87f6d12f96eb766c99214c419b7d35f4a67646f0e2ac1a8abac3576cb0", "relations": [{"rule": 2, "type": "equivalent", "target": "0e538a4d4cac5aac8cab0d86cc46e6d8", "evidence": {"same_day": true, "patch_ids": ["4c076010d0ab56e908326be07c1b73c6"], "statement_hash": "b3c3fe87f6d12f96eb766c99214c419b7d35f4a67646f0e2ac1a8abac3576cb0"}}, {"rule": 2, "type": "equivalent", "target": "770932eb6650d49472c43e2db5c83969", "evidence": {"same_day": true, "patch_ids": ["4c076010d0ab56e908326be07c1b73c6"], "statement_hash": "b3c3fe87f6d12f96eb766c99214c419b7d35f4a67646f0e2ac1a8abac3576cb0"}}, {"rule": 2, "type": "equivalent", "target": "82f0fec30baf25cedac6f47fedd86a1a", "evidence": {"same_day": true, "patch_ids": ["4c076010d0ab56e908326be07c1b73c6"], "statement_hash": "b3c3fe87f6d12f96eb766c99214c419b7d35f4a67646f0e2ac1a8abac3576cb0"}}, {"rule": 2, "type": "equivalent", "target": "a0538505db5e86d813d403a8571068b8", "evidence": {"same_day": true, "patch_ids": ["4c076010d0ab56e908326be07c1b73c6"], "statement_hash": "b3c3fe87f6d12f96eb766c99214c419b7d35f4a67646f0e2ac1a8abac3576cb0"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "a0538505db5e86d813d403a8571068b8", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复重新初始化并行执行上下文时的内存上下文使用问题", "evidence": {"same_day": true, "patch_ids": ["4c076010d0ab56e908326be07c1b73c6"], "statement_hash": "b3c3fe87f6d12f96eb766c99214c419b7d35f4a67646f0e2ac1a8abac3576cb0"}, "url": "/docs/compare/?release=18.2#18.2-f56daebc6196999a", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "0e538a4d4cac5aac8cab0d86cc46e6d8", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复重新初始化并行执行上下文时的内存上下文使用问题", "evidence": {"same_day": true, "patch_ids": ["4c076010d0ab56e908326be07c1b73c6"], "statement_hash": "b3c3fe87f6d12f96eb766c99214c419b7d35f4a67646f0e2ac1a8abac3576cb0"}, "url": "/docs/compare/?release=16.12#16.12-9d7bd150ce599d54", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "82f0fec30baf25cedac6f47fedd86a1a", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "修复重新初始化并行执行上下文时的内存上下文使用问题", "evidence": {"same_day": true, "patch_ids": ["4c076010d0ab56e908326be07c1b73c6"], "statement_hash": "b3c3fe87f6d12f96eb766c99214c419b7d35f4a67646f0e2ac1a8abac3576cb0"}, "url": "/docs/compare/?release=15.16#15.16-d2b6dee5909338ef", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "770932eb6650d49472c43e2db5c83969", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "修复重新初始化并行执行上下文时的内存上下文使用问题", "evidence": {"same_day": true, "patch_ids": ["4c076010d0ab56e908326be07c1b73c6"], "statement_hash": "b3c3fe87f6d12f96eb766c99214c419b7d35f4a67646f0e2ac1a8abac3576cb0"}, "url": "/docs/compare/?release=14.21#14.21-06477385d1974f88", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-351e263e26b0031c", "cves": [], "html": "在创建新的多事务 ID 时设置下一个多事务 ID 的偏移量，以消除在边界情况下所需的等待循环（Andrey Borodin）§ §
\n之前的逻辑可能会卡在等待一个永远不会发生的更新上。
", "text": "在创建新的多事务 ID 时设置下一个多事务 ID 的偏移量，以消除在边界情况下所需的等待循环（Andrey Borodin）§ § 之前的逻辑可能会卡在等待一个永远不会发生的更新上。", "title": "在创建新的多事务 ID 时设置下一个多事务 ID 的偏移量，以消除在边界情况下所需的等待循环", "commits": ["8ba61bc06", "cad40cec2"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "41903876420fbf0d3c0c6a1d2c9fcbade9301a3c6d178da35658b3f30eea0e94", "section_path": ["变更"], "commit_groups": [["02ba5e3be", "489695554", "4d689a176", "4d936c3ff", "b9a02b978", "cad40cec2"], ["635166913", "789d65364", "81416e101", "8ba61bc06", "8cfb174a6", "e46041fd9"]], "identity_text": "Set next multixid's offset when creating a new multixid, to remove the wait loop that was needed in corner cases (Andrey Borodin) The previous logic could get stuck waiting for an update that would never occur.", "commit_aliases": ["02ba5e3be", "489695554", "4d689a176", "4d936c3ff", "635166913", "789d65364", "81416e101", "8ba61bc06", "8cfb174a6", "b9a02b978", "cad40cec2", "e46041fd9"], "source_commits": ["8ba61bc06", "cad40cec2"], "source_entry_id": "17.8/changes/022", "db_id": "df073012abdc28126571ebecafb9c308", "patch_ids": ["7a935cadcf10c6b2317e3231e31323b6", "ee608729a6ebedc95a84b653d7e6f795"], "statement_hash": "3820414d3ddce5f6a358db922abd2d2d57a70d8990ca5c41a3b91f78a7e3261d", "relations": [{"rule": 2, "type": "equivalent", "target": "1d8beb2475d7ec3ee5619d442f62f4e4", "evidence": {"same_day": true, "patch_ids": ["7a935cadcf10c6b2317e3231e31323b6", "ee608729a6ebedc95a84b653d7e6f795"], "statement_hash": "3820414d3ddce5f6a358db922abd2d2d57a70d8990ca5c41a3b91f78a7e3261d"}}, {"rule": 2, "type": "equivalent", "target": "2b4c07606e0901ac70bb0fbb4680ebbe", "evidence": {"same_day": true, "patch_ids": ["7a935cadcf10c6b2317e3231e31323b6", "ee608729a6ebedc95a84b653d7e6f795"], "statement_hash": "3820414d3ddce5f6a358db922abd2d2d57a70d8990ca5c41a3b91f78a7e3261d"}}, {"rule": 2, "type": "equivalent", "target": "9d39be361a73eeb011b1508852d458c4", "evidence": {"same_day": true, "patch_ids": ["7a935cadcf10c6b2317e3231e31323b6", "ee608729a6ebedc95a84b653d7e6f795"], "statement_hash": "3820414d3ddce5f6a358db922abd2d2d57a70d8990ca5c41a3b91f78a7e3261d"}}, {"rule": 2, "type": "equivalent", "target": "fff819d80d05a70e4ebf82ab7f9c951a", "evidence": {"same_day": true, "patch_ids": ["7a935cadcf10c6b2317e3231e31323b6", "ee608729a6ebedc95a84b653d7e6f795"], "statement_hash": "3820414d3ddce5f6a358db922abd2d2d57a70d8990ca5c41a3b91f78a7e3261d"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "9d39be361a73eeb011b1508852d458c4", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "在创建新的多事务 ID 时设置下一个多事务 ID 的偏移量，以消除在边界情况下所需的等待循环", "evidence": {"same_day": true, "patch_ids": ["7a935cadcf10c6b2317e3231e31323b6", "ee608729a6ebedc95a84b653d7e6f795"], "statement_hash": "3820414d3ddce5f6a358db922abd2d2d57a70d8990ca5c41a3b91f78a7e3261d"}, "url": "/docs/compare/?release=18.2#18.2-0eb611cc5bc18380", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "1d8beb2475d7ec3ee5619d442f62f4e4", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "在创建新的多事务 ID 时设置下一个多事务 ID 的偏移量，以消除在边界情况下所需的等待循环", "evidence": {"same_day": true, "patch_ids": ["7a935cadcf10c6b2317e3231e31323b6", "ee608729a6ebedc95a84b653d7e6f795"], "statement_hash": "3820414d3ddce5f6a358db922abd2d2d57a70d8990ca5c41a3b91f78a7e3261d"}, "url": "/docs/compare/?release=16.12#16.12-90168bc8332f7a84", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "2b4c07606e0901ac70bb0fbb4680ebbe", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "在创建新的多事务 ID 时设置下一个多事务 ID 的偏移量，以消除在边界情况下所需的等待循环", "evidence": {"same_day": true, "patch_ids": ["7a935cadcf10c6b2317e3231e31323b6", "ee608729a6ebedc95a84b653d7e6f795"], "statement_hash": "3820414d3ddce5f6a358db922abd2d2d57a70d8990ca5c41a3b91f78a7e3261d"}, "url": "/docs/compare/?release=15.16#15.16-639bc1c588a62efb", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "fff819d80d05a70e4ebf82ab7f9c951a", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "在创建新的多事务 ID 时设置下一个多事务 ID 的偏移量，以消除在边界情况下所需的等待循环", "evidence": {"same_day": true, "patch_ids": ["7a935cadcf10c6b2317e3231e31323b6", "ee608729a6ebedc95a84b653d7e6f795"], "statement_hash": "3820414d3ddce5f6a358db922abd2d2d57a70d8990ca5c41a3b91f78a7e3261d"}, "url": "/docs/compare/?release=14.21#14.21-fc1711f590b7a7c5", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-fed0bc33b201283d", "cves": [], "html": "避免多次重写数据修改 CTE（Bernice Southey，Dean Rasheed）§
\n以前，在更新自动可更新视图或带规则的关系时，如果原始查询含有数据修改 CTE，重写器会由于递归而多次重写这些 CTE。这不仅低效，而且当 CTE 包含对GENERATED ALWAYS 列的更新时可能产生虚假错误。
", "text": "避免多次重写数据修改 CTE（Bernice Southey，Dean Rasheed）§ 以前，在更新自动可更新视图或带规则的关系时，如果原始查询含有数据修改 CTE，重写器会由于递归而多次重写这些 CTE。这不仅低效，而且当 CTE 包含对GENERATED ALWAYS 列的更新时可能产生虚假错误。", "title": "避免多次重写数据修改 CTE", "commits": ["c09096503"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "6aa5c8380dc37f7c77aa85c4927b090f4c3898d30a10bef390cb8f3d602459df", "section_path": ["变更"], "commit_groups": [["134a8ee22", "2d5b97b8c", "3881561d7", "4d288e33b", "b880d9a02", "c09096503"]], "identity_text": "Avoid rewriting data-modifying CTEs more than once (Bernice Southey, Dean Rasheed) Formerly, when updating an auto-updatable view or a relation with rules, if the original query had any data-modifying CTEs, the rewriter would rewrite those CTEs multiple times due to recursion. This was inefficient and could produce false errors if a CTE included an update of an always-generated column.", "commit_aliases": ["134a8ee22", "2d5b97b8c", "3881561d7", "4d288e33b", "b880d9a02", "c09096503"], "source_commits": ["c09096503"], "source_entry_id": "17.8/changes/023", "db_id": "f467408bfd650872bf1654f4ee4ec70d", "patch_ids": ["e0f79f9c321f69bef485ae997c61c414"], "statement_hash": "45d7e282599aa005c97ba4f77c0f61900b8c96a1633aa3b113857a26515155bb", "relations": [{"rule": 2, "type": "equivalent", "target": "6e6c8a0f6889fba17b9d4ea6308a8d7a", "evidence": {"same_day": true, "patch_ids": ["e0f79f9c321f69bef485ae997c61c414"], "statement_hash": "45d7e282599aa005c97ba4f77c0f61900b8c96a1633aa3b113857a26515155bb"}}, {"rule": 2, "type": "equivalent", "target": "b1252119d1b5ac0ac5230ba9b7fb844b", "evidence": {"same_day": true, "patch_ids": ["e0f79f9c321f69bef485ae997c61c414"], "statement_hash": "45d7e282599aa005c97ba4f77c0f61900b8c96a1633aa3b113857a26515155bb"}}, {"rule": 2, "type": "equivalent", "target": "c9710e1b97bbf384a5536e25246c2c1e", "evidence": {"same_day": true, "patch_ids": ["e0f79f9c321f69bef485ae997c61c414"], "statement_hash": "45d7e282599aa005c97ba4f77c0f61900b8c96a1633aa3b113857a26515155bb"}}, {"rule": 2, "type": "equivalent", "target": "fa9d76713707441eef7a725233377166", "evidence": {"same_day": true, "patch_ids": ["e0f79f9c321f69bef485ae997c61c414"], "statement_hash": "45d7e282599aa005c97ba4f77c0f61900b8c96a1633aa3b113857a26515155bb"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "b1252119d1b5ac0ac5230ba9b7fb844b", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "避免多次重写数据修改 CTE", "evidence": {"same_day": true, "patch_ids": ["e0f79f9c321f69bef485ae997c61c414"], "statement_hash": "45d7e282599aa005c97ba4f77c0f61900b8c96a1633aa3b113857a26515155bb"}, "url": "/docs/compare/?release=18.2#18.2-598e6b46a303e445", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "c9710e1b97bbf384a5536e25246c2c1e", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "避免多次重写数据修改 CTE", "evidence": {"same_day": true, "patch_ids": ["e0f79f9c321f69bef485ae997c61c414"], "statement_hash": "45d7e282599aa005c97ba4f77c0f61900b8c96a1633aa3b113857a26515155bb"}, "url": "/docs/compare/?release=16.12#16.12-806ed942f9c5fd64", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "fa9d76713707441eef7a725233377166", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "避免多次重写数据修改 CTE", "evidence": {"same_day": true, "patch_ids": ["e0f79f9c321f69bef485ae997c61c414"], "statement_hash": "45d7e282599aa005c97ba4f77c0f61900b8c96a1633aa3b113857a26515155bb"}, "url": "/docs/compare/?release=15.16#15.16-fdb06078edbce9e9", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "6e6c8a0f6889fba17b9d4ea6308a8d7a", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "避免多次重写数据修改 CTE", "evidence": {"same_day": true, "patch_ids": ["e0f79f9c321f69bef485ae997c61c414"], "statement_hash": "45d7e282599aa005c97ba4f77c0f61900b8c96a1633aa3b113857a26515155bb"}, "url": "/docs/compare/?release=14.21#14.21-7e5820de57d7faff", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-be3128d810d25a5b", "cves": [], "html": "允许重试 DSM 注册表条目的初始化（Nathan Bossart）§
\n如果动态共享内存条目的初始化进行到一半失败，允许下一次尝试使用该条目时重新初始化。此前，该条目会永久处于失败状态。
", "text": "允许重试 DSM 注册表条目的初始化（Nathan Bossart）§ 如果动态共享内存条目的初始化进行到一半失败，允许下一次尝试使用该条目时重新初始化。此前，该条目会永久处于失败状态。", "title": "允许重试 DSM 注册表条目的初始化", "commits": ["2fc5c5062"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "a45a73fcc752e430671563f43425e02dfb18c096961fc057ef86a9d32b6e112e", "section_path": ["变更"], "commit_groups": [["2fc5c5062", "b83bcc0df", "dbdc717ac"]], "identity_text": "Allow retrying initialization of a DSM registry entry (Nathan Bossart) If we fail partway through initialization of a dynamic shared memory entry, allow the next attempt to use that entry to retry initialization. Previously the entry was left in a permanently-failed state.", "commit_aliases": ["2fc5c5062", "b83bcc0df", "dbdc717ac"], "source_commits": ["2fc5c5062"], "source_entry_id": "17.8/changes/024", "db_id": "5039c49f944e0ea8e42e7eb5859d47f5", "patch_ids": ["e358cc1d91845e3da8aaed14c787dcd0"], "statement_hash": "6f8c9dfe61ba11aac117897b8a16e2c125090ad069d80ce5e2ebe812b2891a73", "relations": [{"rule": 2, "type": "equivalent", "target": "35cb139db6fcca1cb726591686762d5e", "evidence": {"same_day": true, "patch_ids": ["e358cc1d91845e3da8aaed14c787dcd0"], "statement_hash": "6f8c9dfe61ba11aac117897b8a16e2c125090ad069d80ce5e2ebe812b2891a73"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "35cb139db6fcca1cb726591686762d5e", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "允许重试 DSM 注册表条目的初始化", "evidence": {"same_day": true, "patch_ids": ["e358cc1d91845e3da8aaed14c787dcd0"], "statement_hash": "6f8c9dfe61ba11aac117897b8a16e2c125090ad069d80ce5e2ebe812b2891a73"}, "url": "/docs/compare/?release=18.2#18.2-44b11be419e13584", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}]}, {"id": "17.8-3d4d2474ea729f43", "cves": [], "html": "如果 WAL 未涵盖检查点记录指示的重做点，则使恢复失败（Nitin Jadhav）§
\n在开始恢复之前添加一个显式检查，以确保不会造成损害并提供有用的错误消息。以前，在这种情况下恢复可能会崩溃或损坏数据库。
", "text": "如果 WAL 未涵盖检查点记录指示的重做点，则使恢复失败（Nitin Jadhav）§ 在开始恢复之前添加一个显式检查，以确保不会造成损害并提供有用的错误消息。以前，在这种情况下恢复可能会崩溃或损坏数据库。", "title": "如果 WAL 未涵盖检查点记录指示的重做点，则使恢复失败", "commits": ["f5927da4f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "41c74c2b03ccb47c4645512c9e78a23ff51eb6579a036b5dd261ff4fe87b27fc", "section_path": ["变更"], "commit_groups": [["14161bca4", "1aa57e9ed", "68ebdf2b0", "95ef6f490", "dc7c77f82", "f5927da4f"]], "identity_text": "Fail recovery if WAL does not exist back to the redo point indicated by the checkpoint record (Nitin Jadhav) Add an explicit check for this before starting recovery, so that no harm is done and a useful error message is provided. Previously, recovery might crash or corrupt the database in this situation.", "commit_aliases": ["14161bca4", "1aa57e9ed", "68ebdf2b0", "95ef6f490", "dc7c77f82", "f5927da4f"], "source_commits": ["f5927da4f"], "source_entry_id": "17.8/changes/025", "db_id": "3f4035b04c1c0e9ba08acef72e76fc91", "patch_ids": ["4b87107464945d5170bed63f81ff3790"], "statement_hash": "3acaee6f8628ca0f43630afaa8799cc5ced91cfb215bf493f91ad515f4af1034", "relations": [{"rule": 2, "type": "equivalent", "target": "011195db7fe270680db938124518987b", "evidence": {"same_day": true, "patch_ids": ["4b87107464945d5170bed63f81ff3790"], "statement_hash": "3acaee6f8628ca0f43630afaa8799cc5ced91cfb215bf493f91ad515f4af1034"}}, {"rule": 2, "type": "equivalent", "target": "7e009c5e3ee2635f5a3f2d6750f1a823", "evidence": {"same_day": true, "patch_ids": ["4b87107464945d5170bed63f81ff3790"], "statement_hash": "3acaee6f8628ca0f43630afaa8799cc5ced91cfb215bf493f91ad515f4af1034"}}, {"rule": 2, "type": "equivalent", "target": "afebd143b96e516829ea82f80f213765", "evidence": {"same_day": true, "patch_ids": ["4b87107464945d5170bed63f81ff3790"], "statement_hash": "3acaee6f8628ca0f43630afaa8799cc5ced91cfb215bf493f91ad515f4af1034"}}, {"rule": 2, "type": "equivalent", "target": "ea5f140766dc7aa68dd175c861036247", "evidence": {"same_day": true, "patch_ids": ["4b87107464945d5170bed63f81ff3790"], "statement_hash": "3acaee6f8628ca0f43630afaa8799cc5ced91cfb215bf493f91ad515f4af1034"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "afebd143b96e516829ea82f80f213765", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "如果 WAL 未涵盖检查点记录指示的重做点，则使恢复失败", "evidence": {"same_day": true, "patch_ids": ["4b87107464945d5170bed63f81ff3790"], "statement_hash": "3acaee6f8628ca0f43630afaa8799cc5ced91cfb215bf493f91ad515f4af1034"}, "url": "/docs/compare/?release=18.2#18.2-48e29718af30085d", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "7e009c5e3ee2635f5a3f2d6750f1a823", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "如果 WAL 未涵盖检查点记录指示的重做点，则使恢复失败", "evidence": {"same_day": true, "patch_ids": ["4b87107464945d5170bed63f81ff3790"], "statement_hash": "3acaee6f8628ca0f43630afaa8799cc5ced91cfb215bf493f91ad515f4af1034"}, "url": "/docs/compare/?release=16.12#16.12-ac8c469b0c901db5", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "ea5f140766dc7aa68dd175c861036247", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "如果 WAL 未涵盖检查点记录指示的重做点，则使恢复失败", "evidence": {"same_day": true, "patch_ids": ["4b87107464945d5170bed63f81ff3790"], "statement_hash": "3acaee6f8628ca0f43630afaa8799cc5ced91cfb215bf493f91ad515f4af1034"}, "url": "/docs/compare/?release=15.16#15.16-61074b4b2db3b9f8", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "011195db7fe270680db938124518987b", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "如果 WAL 未涵盖检查点记录指示的重做点，则使恢复失败", "evidence": {"same_day": true, "patch_ids": ["4b87107464945d5170bed63f81ff3790"], "statement_hash": "3acaee6f8628ca0f43630afaa8799cc5ced91cfb215bf493f91ad515f4af1034"}, "url": "/docs/compare/?release=14.21#14.21-c97498907e799420", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-51768104ffbbb8b1", "cves": [], "html": "避免在 ALTER PUBLICATION 期间修改源查询树（Sunil S）§
此错误的可见效果是，为该查询触发的事件触发器只能看到第一个 publish 选项，即使指定了多个选项。如果此类查询被设置为预备语句，重新执行时也会出现错误行为。
将 CREATE SUBSCRIPTION ... CONNECTION 中指定的连接选项传递给发布端的 walsender 进程（Fujii Masao）§
在此修复之前，options 连接选项（如果有的话）会被忽略，因此，例如无法在 walsender 会话中设置自定义服务器参数值。该功能本应正常工作；在 PostgreSQL 15 中的重构破坏它之前，它也确实一直是正常工作的，因此这里恢复了先前的行为。
防止新创建或新同步的复制槽被无效化（Zhijie Hou）§ § §
\n与并发检查点的竞争条件可能导致复制槽所需的 WAL 被删除，使得该槽立即被标记为无效。
", "text": "防止新创建或新同步的复制槽被无效化（Zhijie Hou）§ § § 与并发检查点的竞争条件可能导致复制槽所需的 WAL 被删除，使得该槽立即被标记为无效。", "title": "防止新创建或新同步的复制槽被无效化", "commits": ["3243c0177", "3510ebeb0", "9649f1adf"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "4b9986d9cec82ca0857c9c964b131d78f9e63d5b9a4ce921d592d9e7f82573bb", "section_path": ["变更"], "commit_groups": [["006dd4b2e", "24cce33c3", "3510ebeb0", "7406df605", "aae05622a", "d3ceb2084"], ["1c60f7236", "3a98f989e", "9649f1adf"], ["3243c0177", "851f6649c", "919c9fa13"]], "identity_text": "Prevent invalidation of newly created or newly synced replication slots (Zhijie Hou) A race condition with a concurrent checkpoint could allow WAL to be removed that is needed by the replication slot, causing the slot to immediately get marked invalid.", "commit_aliases": ["006dd4b2e", "1c60f7236", "24cce33c3", "3243c0177", "3510ebeb0", "3a98f989e", "7406df605", "851f6649c", "919c9fa13", "9649f1adf", "aae05622a", "d3ceb2084"], "source_commits": ["3243c0177", "3510ebeb0", "9649f1adf"], "source_entry_id": "17.8/changes/028", "db_id": "2e44c2dcd00ca731067ba5c1a7a9a31c", "patch_ids": ["52eeca007f2cc833bd086bea5398b6dd", "e27e8fc7ff675146f1b638a98637021e", "fd534fc2f99acb10d2ff04bf0f822f81"], "statement_hash": "a7634872b97f0a43a006c3dc4f9851bc65d8af6cd588b4009553b843b6ae22d9", "relations": [{"rule": 2, "type": "equivalent", "target": "54b2a393bc7cb86ab19eb7c660bb2004", "evidence": {"same_day": true, "patch_ids": ["52eeca007f2cc833bd086bea5398b6dd", "e27e8fc7ff675146f1b638a98637021e", "fd534fc2f99acb10d2ff04bf0f822f81"], "statement_hash": "a7634872b97f0a43a006c3dc4f9851bc65d8af6cd588b4009553b843b6ae22d9"}}, {"rule": 2, "type": "equivalent", "target": "7045b64c3c70e172ffa2ef8c1ae90896", "evidence": {"same_day": true, "patch_ids": ["52eeca007f2cc833bd086bea5398b6dd", "e27e8fc7ff675146f1b638a98637021e", "fd534fc2f99acb10d2ff04bf0f822f81"], "statement_hash": "a7634872b97f0a43a006c3dc4f9851bc65d8af6cd588b4009553b843b6ae22d9"}}, {"rule": 2, "type": "equivalent", "target": "cb75695174eb56fb419b9a98e09580cc", "evidence": {"same_day": true, "patch_ids": ["52eeca007f2cc833bd086bea5398b6dd", "e27e8fc7ff675146f1b638a98637021e", "fd534fc2f99acb10d2ff04bf0f822f81"], "statement_hash": "a7634872b97f0a43a006c3dc4f9851bc65d8af6cd588b4009553b843b6ae22d9"}}, {"rule": 2, "type": "equivalent", "target": "d1a860dc00a9dc81973d46ece96b0748", "evidence": {"same_day": true, "patch_ids": ["52eeca007f2cc833bd086bea5398b6dd", "e27e8fc7ff675146f1b638a98637021e", "fd534fc2f99acb10d2ff04bf0f822f81"], "statement_hash": "a7634872b97f0a43a006c3dc4f9851bc65d8af6cd588b4009553b843b6ae22d9"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "cb75695174eb56fb419b9a98e09580cc", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "防止新创建或新同步的复制槽被无效化", "evidence": {"same_day": true, "patch_ids": ["52eeca007f2cc833bd086bea5398b6dd", "e27e8fc7ff675146f1b638a98637021e", "fd534fc2f99acb10d2ff04bf0f822f81"], "statement_hash": "a7634872b97f0a43a006c3dc4f9851bc65d8af6cd588b4009553b843b6ae22d9"}, "url": "/docs/compare/?release=18.2#18.2-882569f761ef0610", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "7045b64c3c70e172ffa2ef8c1ae90896", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "防止新创建或新同步的复制槽被无效化", "evidence": {"same_day": true, "patch_ids": ["52eeca007f2cc833bd086bea5398b6dd", "e27e8fc7ff675146f1b638a98637021e", "fd534fc2f99acb10d2ff04bf0f822f81"], "statement_hash": "a7634872b97f0a43a006c3dc4f9851bc65d8af6cd588b4009553b843b6ae22d9"}, "url": "/docs/compare/?release=16.12#16.12-2c0a03a7293625cd", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "54b2a393bc7cb86ab19eb7c660bb2004", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "防止新创建或新同步的复制槽被无效化", "evidence": {"same_day": true, "patch_ids": ["52eeca007f2cc833bd086bea5398b6dd", "e27e8fc7ff675146f1b638a98637021e", "fd534fc2f99acb10d2ff04bf0f822f81"], "statement_hash": "a7634872b97f0a43a006c3dc4f9851bc65d8af6cd588b4009553b843b6ae22d9"}, "url": "/docs/compare/?release=15.16#15.16-2523a9b1b515d26f", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "d1a860dc00a9dc81973d46ece96b0748", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "防止新创建或新同步的复制槽被无效化", "evidence": {"same_day": true, "patch_ids": ["52eeca007f2cc833bd086bea5398b6dd", "e27e8fc7ff675146f1b638a98637021e", "fd534fc2f99acb10d2ff04bf0f822f81"], "statement_hash": "a7634872b97f0a43a006c3dc4f9851bc65d8af6cd588b4009553b843b6ae22d9"}, "url": "/docs/compare/?release=14.21#14.21-39c6194420a5bf2b", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-73bf563728deef29", "cves": [], "html": "修复计算复制槽所需 xmin 时的竞争条件（Zhijie Hou）§
\n这可能导致错误 “cannot build an initial slot snapshot as oldest safe xid follows snapshot's xmin”。
", "text": "修复计算复制槽所需 xmin 时的竞争条件（Zhijie Hou）§ 这可能导致错误 “cannot build an initial slot snapshot as oldest safe xid follows snapshot's xmin”。", "title": "修复计算复制槽所需 xmin 时的竞争条件", "commits": ["123b851ab"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "2885b065e4ca25c4575226e4cca7e6ae6728b31b6bf0c52ac355b07c8243b6c1", "section_path": ["变更"], "commit_groups": [["123b851ab", "2a5225b99", "57048d6e1", "821466722", "fa557d300", "fd7c86cfa"]], "identity_text": "Fix race condition in computing a replication slot's required xmin (Zhijie Hou) This could lead to the error cannot build an initial slot snapshot as oldest safe xid follows snapshot's xmin.", "commit_aliases": ["123b851ab", "2a5225b99", "57048d6e1", "821466722", "fa557d300", "fd7c86cfa"], "source_commits": ["123b851ab"], "source_entry_id": "17.8/changes/029", "db_id": "5b75bdc74484bae30e1e7fdc965c9335", "patch_ids": ["c967ad30d8508306bc9949d6c7504333"], "statement_hash": "8dd9f0879870a4299a9d543db5674a7348ed2b9228376a7028ea153ac3afb369", "relations": [{"rule": 2, "type": "equivalent", "target": "669fa902ee7eb1553fc960938aa0101f", "evidence": {"same_day": true, "patch_ids": ["c967ad30d8508306bc9949d6c7504333"], "statement_hash": "8dd9f0879870a4299a9d543db5674a7348ed2b9228376a7028ea153ac3afb369"}}, {"rule": 2, "type": "equivalent", "target": "8dfd1735c21afd64306b7ba15b0a34a0", "evidence": {"same_day": true, "patch_ids": ["c967ad30d8508306bc9949d6c7504333"], "statement_hash": "8dd9f0879870a4299a9d543db5674a7348ed2b9228376a7028ea153ac3afb369"}}, {"rule": 2, "type": "equivalent", "target": "97d0bb3c79bb34e32cf7ac9c088a6cc5", "evidence": {"same_day": true, "patch_ids": ["c967ad30d8508306bc9949d6c7504333"], "statement_hash": "8dd9f0879870a4299a9d543db5674a7348ed2b9228376a7028ea153ac3afb369"}}, {"rule": 2, "type": "equivalent", "target": "ed4968909e48309a69552757b02c2ad7", "evidence": {"same_day": true, "patch_ids": ["c967ad30d8508306bc9949d6c7504333"], "statement_hash": "8dd9f0879870a4299a9d543db5674a7348ed2b9228376a7028ea153ac3afb369"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "669fa902ee7eb1553fc960938aa0101f", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复计算复制槽所需 xmin 时的竞争条件", "evidence": {"same_day": true, "patch_ids": ["c967ad30d8508306bc9949d6c7504333"], "statement_hash": "8dd9f0879870a4299a9d543db5674a7348ed2b9228376a7028ea153ac3afb369"}, "url": "/docs/compare/?release=18.2#18.2-7907d70dfbb36d36", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "97d0bb3c79bb34e32cf7ac9c088a6cc5", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复计算复制槽所需 xmin 时的竞争条件", "evidence": {"same_day": true, "patch_ids": ["c967ad30d8508306bc9949d6c7504333"], "statement_hash": "8dd9f0879870a4299a9d543db5674a7348ed2b9228376a7028ea153ac3afb369"}, "url": "/docs/compare/?release=16.12#16.12-dc6c53055853a66a", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "8dfd1735c21afd64306b7ba15b0a34a0", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "修复计算复制槽所需 xmin 时的竞争条件", "evidence": {"same_day": true, "patch_ids": ["c967ad30d8508306bc9949d6c7504333"], "statement_hash": "8dd9f0879870a4299a9d543db5674a7348ed2b9228376a7028ea153ac3afb369"}, "url": "/docs/compare/?release=15.16#15.16-a49381efba5b11d0", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "ed4968909e48309a69552757b02c2ad7", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "修复计算复制槽所需 xmin 时的竞争条件", "evidence": {"same_day": true, "patch_ids": ["c967ad30d8508306bc9949d6c7504333"], "statement_hash": "8dd9f0879870a4299a9d543db5674a7348ed2b9228376a7028ea153ac3afb369"}, "url": "/docs/compare/?release=14.21#14.21-e0ac9a9b715f44f3", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-e95d66b2b17f79c5", "cves": [], "html": "在逻辑复制订阅的初始同步期间，在开始复制数据之前提交 pg_replication_origin 条目的添加（Zhijie Hou）§
以前，如果复制步骤失败，新的 pg_replication_origin 条目会因事务回滚而丢失，从而导致共享内存中的状态不一致。
在并行工作进程应用失败后不推进逻辑复制进度（Zhijie Hou）§
\n之前的行为允许订阅者丢失事务。
", "text": "在并行工作进程应用失败后不推进逻辑复制进度（Zhijie Hou）§ 之前的行为允许订阅者丢失事务。", "title": "在并行工作进程应用失败后不推进逻辑复制进度", "commits": ["0ed8f1afb"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "28505f1fc0f067397ecf58c1b764b3f80fb61985841686e1336157a7dfbffd06", "section_path": ["变更"], "commit_groups": [["0ed8f1afb", "1528b0d89", "2f7ffe124", "63a65adf4"]], "identity_text": "Don't advance logical replication progress after a parallel worker apply failure (Zhijie Hou) The previous behavior allowed transactions to be lost by a subscriber.", "commit_aliases": ["0ed8f1afb", "1528b0d89", "2f7ffe124", "63a65adf4"], "source_commits": ["0ed8f1afb"], "source_entry_id": "17.8/changes/031", "db_id": "d3f0ce1d0627ffd85c57f5963d822b33", "patch_ids": ["9d8b1309e987cb63c5164f0ac19628f4"], "statement_hash": "843a95a8685d2abb66e22dcecb3ca218c807c27fb6410d57c5646106423458aa", "relations": [{"rule": 2, "type": "equivalent", "target": "0f5fb8d4e546a502c86c3683cd965e48", "evidence": {"same_day": true, "patch_ids": ["9d8b1309e987cb63c5164f0ac19628f4"], "statement_hash": "843a95a8685d2abb66e22dcecb3ca218c807c27fb6410d57c5646106423458aa"}}, {"rule": 2, "type": "equivalent", "target": "3e82f89211515507e8f8677f313d3799", "evidence": {"same_day": true, "patch_ids": ["9d8b1309e987cb63c5164f0ac19628f4"], "statement_hash": "843a95a8685d2abb66e22dcecb3ca218c807c27fb6410d57c5646106423458aa"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "3e82f89211515507e8f8677f313d3799", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "在并行工作进程应用失败后不推进逻辑复制进度", "evidence": {"same_day": true, "patch_ids": ["9d8b1309e987cb63c5164f0ac19628f4"], "statement_hash": "843a95a8685d2abb66e22dcecb3ca218c807c27fb6410d57c5646106423458aa"}, "url": "/docs/compare/?release=18.2#18.2-434a2b6b0d42abc4", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "0f5fb8d4e546a502c86c3683cd965e48", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "在并行工作进程应用失败后不推进逻辑复制进度", "evidence": {"same_day": true, "patch_ids": ["9d8b1309e987cb63c5164f0ac19628f4"], "statement_hash": "843a95a8685d2abb66e22dcecb3ca218c807c27fb6410d57c5646106423458aa"}, "url": "/docs/compare/?release=16.12#16.12-3caf153e1345719c", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}]}, {"id": "17.8-f2b54a080f4d7fca", "cves": [], "html": "修复逻辑复制 slotsync 工作进程对 LOCK_TIMEOUT 信号的处理（Zhijie Hou）§
\n以前，这类超时信号实际上会被忽略。
", "text": "修复逻辑复制 slotsync 工作进程对 LOCK_TIMEOUT 信号的处理（Zhijie Hou）§ 以前，这类超时信号实际上会被忽略。", "title": "修复逻辑复制 slotsync 工作进程对 LOCK_TIMEOUT 信号的处理", "commits": ["f2818868a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "ed3db420b3ce0538723c7fd80ca7c8d0dbb3e471a79ffa01895418c452543678", "section_path": ["变更"], "commit_groups": [["04396eacd", "6c61c69d5", "f2818868a"]], "identity_text": "Fix logical replication slotsync worker processes to handle LOCK_TIMEOUT signals correctly (Zhijie Hou) Previously, timeout signals were effectively ignored.", "commit_aliases": ["04396eacd", "6c61c69d5", "f2818868a"], "source_commits": ["f2818868a"], "source_entry_id": "17.8/changes/032", "db_id": "516169d81baba61d618e37237bc53276", "patch_ids": ["bdd6c0273fd3cdf835c31867877f6167"], "statement_hash": "f0b98267cefa8d08da7ffcca6c441a22dd2c4323a5763263e96b18dd48ae7fc5", "relations": [{"rule": 2, "type": "equivalent", "target": "b79cdfd53c29fdec5dd1d0dff7f08fee", "evidence": {"same_day": true, "patch_ids": ["bdd6c0273fd3cdf835c31867877f6167"], "statement_hash": "f0b98267cefa8d08da7ffcca6c441a22dd2c4323a5763263e96b18dd48ae7fc5"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "b79cdfd53c29fdec5dd1d0dff7f08fee", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复逻辑复制 slotsync 工作进程对 LOCK_TIMEOUT 信号的处理", "evidence": {"same_day": true, "patch_ids": ["bdd6c0273fd3cdf835c31867877f6167"], "statement_hash": "f0b98267cefa8d08da7ffcca6c441a22dd2c4323a5763263e96b18dd48ae7fc5"}, "url": "/docs/compare/?release=18.2#18.2-2a6c1c4c27f67acd", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}]}, {"id": "17.8-ca1e290b0cb2dd09", "cves": [], "html": "修复流复制副本服务器重启期间可能出现的 “unexpected data beyond EOF” 失败问题（Anthonin Bonnefoy）§
", "text": "修复流复制副本服务器重启期间可能出现的 “unexpected data beyond EOF” 失败问题（Anthonin Bonnefoy）§", "title": "修复流复制副本服务器重启期间可能出现的 “unexpected data beyond EOF” 失败问题", "commits": ["c3770181c"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "5c0dd5ed1b78782d221ab6b0b704ca55b5c886b82dd607f5477b02b815f39133", "section_path": ["变更"], "commit_groups": [["23b25586d", "2514f1c77", "9ed411e08", "a2eeb04f3", "c3770181c", "ef8465588"]], "identity_text": "Fix possible failure with unexpected data beyond EOF during restart of a streaming replica server (Anthonin Bonnefoy)", "commit_aliases": ["23b25586d", "2514f1c77", "9ed411e08", "a2eeb04f3", "c3770181c", "ef8465588"], "source_commits": ["c3770181c"], "source_entry_id": "17.8/changes/033", "db_id": "a79b7d220801497e224783e6369f7957", "patch_ids": ["5162c78b0f9af44ee53c5daf07030ba8"], "statement_hash": "6b8e19ac39d2a905a6b06a59a41de464bc6a62cc815b31c6e858ae96438db9ab", "relations": [{"rule": 2, "type": "equivalent", "target": "06594efa4344da118700b1c48988f5e4", "evidence": {"same_day": true, "patch_ids": ["5162c78b0f9af44ee53c5daf07030ba8"], "statement_hash": "6b8e19ac39d2a905a6b06a59a41de464bc6a62cc815b31c6e858ae96438db9ab"}}, {"rule": 2, "type": "equivalent", "target": "668c3f03c522a5db8d076f179e064027", "evidence": {"same_day": true, "patch_ids": ["5162c78b0f9af44ee53c5daf07030ba8"], "statement_hash": "6b8e19ac39d2a905a6b06a59a41de464bc6a62cc815b31c6e858ae96438db9ab"}}, {"rule": 2, "type": "equivalent", "target": "8d924571fb5bee478b47c49ff89fa7f5", "evidence": {"same_day": true, "patch_ids": ["5162c78b0f9af44ee53c5daf07030ba8"], "statement_hash": "6b8e19ac39d2a905a6b06a59a41de464bc6a62cc815b31c6e858ae96438db9ab"}}, {"rule": 2, "type": "equivalent", "target": "a321a63cf72d9e7f3afd2ff1e5a2c814", "evidence": {"same_day": true, "patch_ids": ["5162c78b0f9af44ee53c5daf07030ba8"], "statement_hash": "6b8e19ac39d2a905a6b06a59a41de464bc6a62cc815b31c6e858ae96438db9ab"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "06594efa4344da118700b1c48988f5e4", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复流复制副本服务器重启期间可能出现的 “unexpected data beyond EOF” 失败问题", "evidence": {"same_day": true, "patch_ids": ["5162c78b0f9af44ee53c5daf07030ba8"], "statement_hash": "6b8e19ac39d2a905a6b06a59a41de464bc6a62cc815b31c6e858ae96438db9ab"}, "url": "/docs/compare/?release=18.2#18.2-c52d288613257e1b", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "a321a63cf72d9e7f3afd2ff1e5a2c814", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复流复制副本服务器重启期间可能出现的 “unexpected data beyond EOF” 失败问题", "evidence": {"same_day": true, "patch_ids": ["5162c78b0f9af44ee53c5daf07030ba8"], "statement_hash": "6b8e19ac39d2a905a6b06a59a41de464bc6a62cc815b31c6e858ae96438db9ab"}, "url": "/docs/compare/?release=16.12#16.12-ce78056abed06c7f", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "668c3f03c522a5db8d076f179e064027", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "修复流复制副本服务器重启期间可能出现的 “unexpected data beyond EOF” 失败问题", "evidence": {"same_day": true, "patch_ids": ["5162c78b0f9af44ee53c5daf07030ba8"], "statement_hash": "6b8e19ac39d2a905a6b06a59a41de464bc6a62cc815b31c6e858ae96438db9ab"}, "url": "/docs/compare/?release=15.16#15.16-ba8bb5d9e4033d19", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "8d924571fb5bee478b47c49ff89fa7f5", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "修复流复制副本服务器重启期间可能出现的 “unexpected data beyond EOF” 失败问题", "evidence": {"same_day": true, "patch_ids": ["5162c78b0f9af44ee53c5daf07030ba8"], "statement_hash": "6b8e19ac39d2a905a6b06a59a41de464bc6a62cc815b31c6e858ae96438db9ab"}, "url": "/docs/compare/?release=14.21#14.21-56f9977d411ed1a0", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-2a0ef06d727eafaf", "cves": [], "html": "修复 SQL/JSON 路径类型不匹配时的错误报告（Jian He）§
\n该代码原本应报告路径表达式类型不正确，却可能产生 “cache lookup failed for type 0” 错误。
", "text": "修复 SQL/JSON 路径类型不匹配时的错误报告（Jian He）§ 该代码原本应报告路径表达式类型不正确，却可能产生 “cache lookup failed for type 0” 错误。", "title": "修复 SQL/JSON 路径类型不匹配时的错误报告", "commits": ["b5511fed5"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "235cc3f3ee46b8fcd9023618e87cbc7250f3b9e0388ae165eddbd36b4ffd2582", "section_path": ["变更"], "commit_groups": [["15ba0702c", "519fa0433", "b5511fed5"]], "identity_text": "Fix error reporting for SQL/JSON path type mismatches (Jian He) The code could produce a cache lookup failed for type 0 error instead of the intended complaint about the path expression not being of the right type.", "commit_aliases": ["15ba0702c", "519fa0433", "b5511fed5"], "source_commits": ["b5511fed5"], "source_entry_id": "17.8/changes/034", "db_id": "8483ae615f87a4c8e095a563aecd48c8", "patch_ids": ["280990af5b3469c06fb7ff61c204b4ef"], "statement_hash": "125204f7b1e9d0130c0fb80a18be78fa7ce15ceea1fb46138ad538ba516556af", "relations": [{"rule": 2, "type": "equivalent", "target": "54166f9d89f4ebad4b6522ec9d70d5f6", "evidence": {"same_day": true, "patch_ids": ["280990af5b3469c06fb7ff61c204b4ef"], "statement_hash": "125204f7b1e9d0130c0fb80a18be78fa7ce15ceea1fb46138ad538ba516556af"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "54166f9d89f4ebad4b6522ec9d70d5f6", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复 SQL/JSON 路径类型不匹配时的错误报告", "evidence": {"same_day": true, "patch_ids": ["280990af5b3469c06fb7ff61c204b4ef"], "statement_hash": "125204f7b1e9d0130c0fb80a18be78fa7ce15ceea1fb46138ad538ba516556af"}, "url": "/docs/compare/?release=18.2#18.2-a3a0f5425174a83a", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}]}, {"id": "17.8-1ae71997df1c5c19", "cves": [], "html": "修复解析分区范围边界时对列位置的错误跟踪（myzhen）§
\n这可能导致在关于将分区边界值转换为列的数据类型的错误消息中引用错误的列名。
", "text": "修复解析分区范围边界时对列位置的错误跟踪（myzhen）§ 这可能导致在关于将分区边界值转换为列的数据类型的错误消息中引用错误的列名。", "title": "修复解析分区范围边界时对列位置的错误跟踪", "commits": ["84b787ae6"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "3802c023fa767d9a7cc6c8d787ca6a68ed5663c8715e031f004110d8899b1bc3", "section_path": ["变更"], "commit_groups": [["349107537", "3ad05640b", "821c4d27b", "84b787ae6", "a65995947", "c35e5dd9a"]], "identity_text": "Fix erroneous tracking of column position when parsing partition range bounds (myzhen) This could, for example, lead to the wrong column name being cited in error messages about casting partition bound values to the column's data type.", "commit_aliases": ["349107537", "3ad05640b", "821c4d27b", "84b787ae6", "a65995947", "c35e5dd9a"], "source_commits": ["84b787ae6"], "source_entry_id": "17.8/changes/035", "db_id": "3d999c9c39b345cf00d6c149f77369bc", "patch_ids": ["6f0c6912e975c2e11453b9af7373ff2b"], "statement_hash": "99c55def0f9f50d97f55530e56d1c92347af0e9dedfe788a482bbfd2a5b86232", "relations": [{"rule": 2, "type": "equivalent", "target": "775ee6e8b3e233efe9c85fc527d0a5d4", "evidence": {"same_day": true, "patch_ids": ["6f0c6912e975c2e11453b9af7373ff2b"], "statement_hash": "99c55def0f9f50d97f55530e56d1c92347af0e9dedfe788a482bbfd2a5b86232"}}, {"rule": 2, "type": "equivalent", "target": "8da33c76c87cf129799d93a7efd47d96", "evidence": {"same_day": true, "patch_ids": ["6f0c6912e975c2e11453b9af7373ff2b"], "statement_hash": "99c55def0f9f50d97f55530e56d1c92347af0e9dedfe788a482bbfd2a5b86232"}}, {"rule": 2, "type": "equivalent", "target": "bb4e430870bc5f4909df899b3e4e6a47", "evidence": {"same_day": true, "patch_ids": ["6f0c6912e975c2e11453b9af7373ff2b"], "statement_hash": "99c55def0f9f50d97f55530e56d1c92347af0e9dedfe788a482bbfd2a5b86232"}}, {"rule": 2, "type": "equivalent", "target": "bcd807761d1a951aa85d661bf8df019c", "evidence": {"same_day": true, "patch_ids": ["6f0c6912e975c2e11453b9af7373ff2b"], "statement_hash": "99c55def0f9f50d97f55530e56d1c92347af0e9dedfe788a482bbfd2a5b86232"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "bcd807761d1a951aa85d661bf8df019c", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复解析分区范围边界时对列位置的错误跟踪", "evidence": {"same_day": true, "patch_ids": ["6f0c6912e975c2e11453b9af7373ff2b"], "statement_hash": "99c55def0f9f50d97f55530e56d1c92347af0e9dedfe788a482bbfd2a5b86232"}, "url": "/docs/compare/?release=18.2#18.2-3915ae13b44752be", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "bb4e430870bc5f4909df899b3e4e6a47", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复解析分区范围边界时对列位置的错误跟踪", "evidence": {"same_day": true, "patch_ids": ["6f0c6912e975c2e11453b9af7373ff2b"], "statement_hash": "99c55def0f9f50d97f55530e56d1c92347af0e9dedfe788a482bbfd2a5b86232"}, "url": "/docs/compare/?release=16.12#16.12-cf6cf28e524760ac", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "775ee6e8b3e233efe9c85fc527d0a5d4", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "修复解析分区范围边界时对列位置的错误跟踪", "evidence": {"same_day": true, "patch_ids": ["6f0c6912e975c2e11453b9af7373ff2b"], "statement_hash": "99c55def0f9f50d97f55530e56d1c92347af0e9dedfe788a482bbfd2a5b86232"}, "url": "/docs/compare/?release=15.16#15.16-ed7528c4bca01a17", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "8da33c76c87cf129799d93a7efd47d96", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "修复解析分区范围边界时对列位置的错误跟踪", "evidence": {"same_day": true, "patch_ids": ["6f0c6912e975c2e11453b9af7373ff2b"], "statement_hash": "99c55def0f9f50d97f55530e56d1c92347af0e9dedfe788a482bbfd2a5b86232"}, "url": "/docs/compare/?release=14.21#14.21-cd4c9b00fed268c0", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-4eafc20a792cccfc", "cves": [], "html": "修复错误消息中的各种小错误（Man Zeng，Tianchen Zhang）§ § § § §
\n例如，关于备份清单中时间线编号不匹配的错误报告在应该显示结束时间线编号的地方显示了起始时间线编号。
", "text": "修复错误消息中的各种小错误（Man Zeng，Tianchen Zhang）§ § § § § 例如，关于备份清单中时间线编号不匹配的错误报告在应该显示结束时间线编号的地方显示了起始时间线编号。", "title": "修复错误消息中的各种小错误", "commits": ["05ef2371a", "263af458e", "5449fd261", "5995135f1", "67ad4387b"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "d11f9d44eb20229b3ccd2863975791a8da413af9512a0e257db9d5ece6aa6862", "section_path": ["变更"], "commit_groups": [["05ef2371a", "69ee81932", "6bca4b50d", "e8fd6c9fd", "f1dc7a5b7", "fbf8df580"], ["1653ce523", "3e7bb39df", "5449fd261", "9dcd0b3de", "a7bdbbada", "cff2ef984"], ["263af458e", "2ca4464b6", "c8ec74713"], ["4ec943f7d", "67ad4387b", "74a116a79", "977a17a3e", "acfa422c3", "d32e17160"], ["5995135f1", "a9afa021e", "ab61f0087"]], "identity_text": "Fix assorted minor errors in error messages (Man Zeng, Tianchen Zhang) For example, an error report about mismatched timeline number in a backup manifest showed the starting timeline number where it meant to show the 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PostgreSQL 版本 16 及更高版本会使用 posix_fallocate()（如果平台提供的话）来扩展关系文件。然而，据报告这与某些文件系统交互不良：BTRFS 压缩会因使用 posix_fallocate() 而被禁用，而在较旧的 Linux 内核版本中 XFS 可能会产生虚假的 ENOSPC 错误。为提供一种解决方案，引入了这个新的服务器参数。将 file_extend_method 设置为 write_zeros 将使服务器回退到通过写入全零数据块来扩展文件的旧方法。
在 Windows 上遵守 open() 的 O_CLOEXEC 标志（Bryan Green，Thomas Munro）§ § §
使此标志像在 POSIX 平台上一样工作，以避免将文件句柄泄漏到子进程（如 COPY TO/FROM PROGRAM）中。虽然该泄漏没有造成太多问题，但它似乎是不可取的。
修复在使用 meson 构建的 Solaris 可执行文件中无法解析服务器命令行长选项的问题（Tom Lane）§
", "text": "修复在使用 meson 构建的 Solaris 可执行文件中无法解析服务器命令行长选项的问题（Tom Lane）§", "title": "修复在使用 meson 构建的 Solaris 可执行文件中无法解析服务器命令行长选项的问题", "commits": ["59c2f7efa"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "168ef6f4c1379c57415fe337baf76e5fa27b181eaafa28b0c3c17ae8fa4eb368", "section_path": ["变更"], "commit_groups": [["59c2f7efa", "5eac1d68f", "7369656fa", "c0bf15729"]], "identity_text": "Fix failure to parse long options on the server command line in Solaris executables built with meson (Tom Lane)", "commit_aliases": ["59c2f7efa", "5eac1d68f", "7369656fa", "c0bf15729"], "source_commits": ["59c2f7efa"], "source_entry_id": "17.8/changes/041", "db_id": "563cd6c38790a66a34d7d2cbdab27f36", "patch_ids": ["133a9f9fce49cbd34f1b9ba0b7dee391"], "statement_hash": "5ef581baf9ed7ef45975ff2c7d893c9da8f950d13c68cd98fea4606121f2a7ac", "relations": [{"rule": 2, "type": "equivalent", "target": "ae36e9e2da103cf26dac76edbf8412a6", "evidence": {"same_day": true, "patch_ids": ["133a9f9fce49cbd34f1b9ba0b7dee391"], "statement_hash": "5ef581baf9ed7ef45975ff2c7d893c9da8f950d13c68cd98fea4606121f2a7ac"}}, {"rule": 2, "type": "equivalent", "target": "c730bdc0e2bcae412d1b558e6989e803", "evidence": {"same_day": true, "patch_ids": ["133a9f9fce49cbd34f1b9ba0b7dee391"], "statement_hash": "5ef581baf9ed7ef45975ff2c7d893c9da8f950d13c68cd98fea4606121f2a7ac"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "c730bdc0e2bcae412d1b558e6989e803", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复在使用 meson 构建的 Solaris 可执行文件中无法解析服务器命令行长选项的问题", "evidence": {"same_day": true, "patch_ids": ["133a9f9fce49cbd34f1b9ba0b7dee391"], "statement_hash": "5ef581baf9ed7ef45975ff2c7d893c9da8f950d13c68cd98fea4606121f2a7ac"}, "url": "/docs/compare/?release=18.2#18.2-ca3da398904bd780", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "ae36e9e2da103cf26dac76edbf8412a6", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复在使用 meson 构建的 Solaris 可执行文件中无法解析服务器命令行长选项的问题", "evidence": {"same_day": true, "patch_ids": ["133a9f9fce49cbd34f1b9ba0b7dee391"], "statement_hash": "5ef581baf9ed7ef45975ff2c7d893c9da8f950d13c68cd98fea4606121f2a7ac"}, "url": "/docs/compare/?release=16.12#16.12-19e3352e6e937b69", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}]}, {"id": "17.8-3cbfa3eb5e11672e", "cves": [], "html": "支持在 GNU/Hurd 上更改进程标题（Michael Banck）§
", "text": "支持在 GNU/Hurd 上更改进程标题（Michael Banck）§", "title": "支持在 GNU/Hurd 上更改进程标题", "commits": ["d66a922f9"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "4ab9d090d0b782309a436d28963920b22c5aaf01b0cf8466091198d4684582ae", "section_path": ["变更"], "commit_groups": [["29a3e22f3", "32b236644", "3995e4a9d", "a1407dade", "bcfca332f", "d66a922f9"]], "identity_text": "Support process title changes on GNU/Hurd (Michael Banck)", "commit_aliases": ["29a3e22f3", "32b236644", "3995e4a9d", "a1407dade", "bcfca332f", "d66a922f9"], "source_commits": ["d66a922f9"], "source_entry_id": "17.8/changes/042", "db_id": "b14342e6824ed37b82078bd9a6cc21e1", "patch_ids": ["f27aa5a2659577ffa2455a4c94564743"], "statement_hash": "c996e792f260f0d512b6a6524e3b46eed7769d4f17a4584a012601680f44fc4f", "relations": [{"rule": 2, "type": "equivalent", "target": "45f431c4bd4cad50e4053b47f371bd3f", "evidence": {"same_day": true, "patch_ids": ["f27aa5a2659577ffa2455a4c94564743"], "statement_hash": "c996e792f260f0d512b6a6524e3b46eed7769d4f17a4584a012601680f44fc4f"}}, {"rule": 2, "type": "equivalent", "target": "465d44f8b93dc009feaa8d1fac573196", "evidence": {"same_day": true, "patch_ids": ["f27aa5a2659577ffa2455a4c94564743"], "statement_hash": "c996e792f260f0d512b6a6524e3b46eed7769d4f17a4584a012601680f44fc4f"}}, {"rule": 2, "type": "equivalent", "target": "92b88e55c652dfa1fcdde3f0953f3285", "evidence": {"same_day": true, "patch_ids": ["f27aa5a2659577ffa2455a4c94564743"], "statement_hash": "c996e792f260f0d512b6a6524e3b46eed7769d4f17a4584a012601680f44fc4f"}}, {"rule": 2, "type": "equivalent", "target": "d2f91f9760f28a721378c4e8d76ef619", "evidence": {"same_day": true, "patch_ids": ["f27aa5a2659577ffa2455a4c94564743"], "statement_hash": "c996e792f260f0d512b6a6524e3b46eed7769d4f17a4584a012601680f44fc4f"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "92b88e55c652dfa1fcdde3f0953f3285", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "支持在 GNU/Hurd 上更改进程标题", "evidence": {"same_day": true, "patch_ids": ["f27aa5a2659577ffa2455a4c94564743"], "statement_hash": "c996e792f260f0d512b6a6524e3b46eed7769d4f17a4584a012601680f44fc4f"}, "url": "/docs/compare/?release=18.2#18.2-e1336b6079ff8d5b", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "45f431c4bd4cad50e4053b47f371bd3f", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "支持在 GNU/Hurd 上更改进程标题", "evidence": {"same_day": true, "patch_ids": ["f27aa5a2659577ffa2455a4c94564743"], "statement_hash": "c996e792f260f0d512b6a6524e3b46eed7769d4f17a4584a012601680f44fc4f"}, "url": "/docs/compare/?release=16.12#16.12-518eec4d74a9bdf5", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "d2f91f9760f28a721378c4e8d76ef619", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "支持在 GNU/Hurd 上更改进程标题", "evidence": {"same_day": true, "patch_ids": ["f27aa5a2659577ffa2455a4c94564743"], "statement_hash": "c996e792f260f0d512b6a6524e3b46eed7769d4f17a4584a012601680f44fc4f"}, "url": "/docs/compare/?release=15.16#15.16-03e934debe8d5e92", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "465d44f8b93dc009feaa8d1fac573196", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "支持在 GNU/Hurd 上更改进程标题", "evidence": {"same_day": true, "patch_ids": ["f27aa5a2659577ffa2455a4c94564743"], "statement_hash": "c996e792f260f0d512b6a6524e3b46eed7769d4f17a4584a012601680f44fc4f"}, "url": "/docs/compare/?release=14.21#14.21-d81eba7f3eeb9460", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-fb87d1ddb8333f9e", "cves": [], "html": "避免 pg_dump 在 binary-upgrade 模式下触发断言失败（Vignesh C）§
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", "text": "避免 pg_dump 在 binary-upgrade 模式下触发断言失败（Vignesh C）§ 对象排序代码未能处理订阅关系对象，从而触发断言，不过在生产构建中并未发现严重的实际影响。", "title": "避免 pg_dump 在 binary-upgrade 模式下触发断言失败", "commits": ["1cdc07ad5"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "ed7d79cb9961b490e3f9ffbf38da15b1d7d990403424fa446a4c670c9f36c928", "section_path": ["变更"], "commit_groups": [["1cdc07ad5", "573e679a2", "d49936f30"]], "identity_text": "Avoid pg_dump assertion failure in binary-upgrade mode (Vignesh C) Failure to handle subscription-relation objects in the object sorting code triggered an assertion, though there were no serious ill effects in production builds.", "commit_aliases": ["1cdc07ad5", "573e679a2", "d49936f30"], "source_commits": ["1cdc07ad5"], "source_entry_id": "17.8/changes/043", "db_id": "4494339208c66bea624ef04f8e7162d7", "patch_ids": ["ed0dc1c369ce52f90f050a02c31cfe22"], "statement_hash": "305d4ecb2b90454723cac5826da3903c1efb32bfae398fdc085bfa0cabab291a", "relations": [{"rule": 2, "type": "equivalent", "target": "df5cb5704fef8f74897251fa0c3be081", "evidence": {"same_day": true, "patch_ids": ["ed0dc1c369ce52f90f050a02c31cfe22"], "statement_hash": "305d4ecb2b90454723cac5826da3903c1efb32bfae398fdc085bfa0cabab291a"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "df5cb5704fef8f74897251fa0c3be081", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "避免 pg_dump 在 binary-upgrade 模式下触发断言失败", "evidence": {"same_day": true, "patch_ids": ["ed0dc1c369ce52f90f050a02c31cfe22"], "statement_hash": "305d4ecb2b90454723cac5826da3903c1efb32bfae398fdc085bfa0cabab291a"}, "url": "/docs/compare/?release=18.2#18.2-ee37d4b2b910a503", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}]}, {"id": "17.8-db3cf1766c83bbad", "cves": [], "html": "修复 pipeline 模式下 pgbench 在有多个 \\syncpipeline 命令时的错误处理问题（Yugo Nagata）§
如果在查询错误之后又遇到多个 \\syncpipeline 命令，pgbench 会报告 “failed to exit pipeline mode”，或者在启用断言的构建中触发断言失败。
使 pg_resetwal 在更改 OldestXID 时打印更新后的值（Heikki Linnakangas）§
\n它对可以更改的其他每个变量都已经这样做了。
", "text": "使 pg_resetwal 在更改 OldestXID 时打印更新后的值（Heikki Linnakangas）§ 它对可以更改的其他每个变量都已经这样做了。", "title": "使 pg_resetwal 在更改 OldestXID 时打印更新后的值", "commits": ["f2e0ca0af"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "4e0a5cfd168653c353fcfc7dbe158becf92e7cc3ce67a1251d1309381b4e1964", "section_path": ["变更"], "commit_groups": [["11cc0f452", "19594271c", "7c494072b", "890cc81b6", "d5b4f3a6d", "f2e0ca0af"]], "identity_text": "Make pg_resetwal print the updated value when changing OldestXID (Heikki Linnakangas) It already did that for every other variable it can change.", "commit_aliases": ["11cc0f452", "19594271c", "7c494072b", "890cc81b6", "d5b4f3a6d", "f2e0ca0af"], "source_commits": ["f2e0ca0af"], "source_entry_id": "17.8/changes/045", "db_id": "500d9d80888f7caeb4b4801bee95301d", "patch_ids": ["f29e862445ceccbb303aaae2f778a19b"], "statement_hash": "7e00b6482e7aa0b9a1cb427214f076ddb806bf1fa199c1cf0ab023c54c2dd96a", "relations": [{"rule": 2, "type": "equivalent", "target": "22be50f61755ecf5187af28b01545b41", "evidence": {"same_day": true, "patch_ids": ["f29e862445ceccbb303aaae2f778a19b"], "statement_hash": "7e00b6482e7aa0b9a1cb427214f076ddb806bf1fa199c1cf0ab023c54c2dd96a"}}, {"rule": 2, "type": "equivalent", "target": "47e617ce37a58405cf4c7f033f26b641", "evidence": {"same_day": true, "patch_ids": ["f29e862445ceccbb303aaae2f778a19b"], "statement_hash": "7e00b6482e7aa0b9a1cb427214f076ddb806bf1fa199c1cf0ab023c54c2dd96a"}}, {"rule": 2, "type": "equivalent", "target": "5f928cd7f1a940e12cd51a8ce19d06f6", "evidence": {"same_day": true, "patch_ids": ["f29e862445ceccbb303aaae2f778a19b"], "statement_hash": "7e00b6482e7aa0b9a1cb427214f076ddb806bf1fa199c1cf0ab023c54c2dd96a"}}, {"rule": 2, "type": "equivalent", "target": "94c5ea9aed8ffadf4043f33f201ed4e5", "evidence": {"same_day": true, "patch_ids": ["f29e862445ceccbb303aaae2f778a19b"], "statement_hash": "7e00b6482e7aa0b9a1cb427214f076ddb806bf1fa199c1cf0ab023c54c2dd96a"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "5f928cd7f1a940e12cd51a8ce19d06f6", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "使 pg_resetwal 在更改 OldestXID 时打印更新后的值", "evidence": {"same_day": true, "patch_ids": ["f29e862445ceccbb303aaae2f778a19b"], "statement_hash": "7e00b6482e7aa0b9a1cb427214f076ddb806bf1fa199c1cf0ab023c54c2dd96a"}, "url": "/docs/compare/?release=18.2#18.2-12ea46c5ca32b0f2", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "94c5ea9aed8ffadf4043f33f201ed4e5", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "使 pg_resetwal 在更改 OldestXID 时打印更新后的值", "evidence": {"same_day": true, "patch_ids": ["f29e862445ceccbb303aaae2f778a19b"], "statement_hash": "7e00b6482e7aa0b9a1cb427214f076ddb806bf1fa199c1cf0ab023c54c2dd96a"}, "url": "/docs/compare/?release=16.12#16.12-49d7c6db55fd3d90", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "47e617ce37a58405cf4c7f033f26b641", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "使 pg_resetwal 在更改 OldestXID 时打印更新后的值", "evidence": {"same_day": true, "patch_ids": ["f29e862445ceccbb303aaae2f778a19b"], "statement_hash": "7e00b6482e7aa0b9a1cb427214f076ddb806bf1fa199c1cf0ab023c54c2dd96a"}, "url": "/docs/compare/?release=15.16#15.16-3d69fa0131d029ba", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "22be50f61755ecf5187af28b01545b41", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "使 pg_resetwal 在更改 OldestXID 时打印更新后的值", "evidence": {"same_day": true, "patch_ids": ["f29e862445ceccbb303aaae2f778a19b"], "statement_hash": "7e00b6482e7aa0b9a1cb427214f076ddb806bf1fa199c1cf0ab023c54c2dd96a"}, "url": "/docs/compare/?release=14.21#14.21-cd08367401e4956d", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-6a1deb077e1799c1", "cves": [], "html": "使 pg_resetwal 允许将下一个多事务 xid 设置为 0 或将下一个多事务偏移量设置为 UINT32_MAX（Maxim Orlov）§
\n这些是有效的值，因此拒绝它们是不正确的。在最坏的情况下，如果恰好在多事务回卷点尝试 pg_upgrade，升级将失败。
", "text": "使 pg_resetwal 允许将下一个多事务 xid 设置为 0 或将下一个多事务偏移量设置为 UINT32_MAX（Maxim Orlov）§ 这些是有效的值，因此拒绝它们是不正确的。在最坏的情况下，如果恰好在多事务回卷点尝试 pg_upgrade，升级将失败。", "title": "使 pg_resetwal 允许将下一个多事务 xid 设置为 0 或将下一个多事务偏移量设置为 UINT32_MAX", "commits": ["cb2ef0e92"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "ca7ba490136c2a09fd21824920c582511406677ef84fee507c340ce1be3f83ac", "section_path": ["变更"], "commit_groups": [["8747b969f", "94939c5f3", "97cd4b65a", "cb2ef0e92", "e039b09f8"]], "identity_text": "Make pg_resetwal allow setting next multixact xid to 0 or next multixact offset to UINT32_MAX (Maxim Orlov) These are valid values, so rejecting them was incorrect. In the worst case, if a pg_upgrade is attempted when exactly at the point of multixact wraparound, the upgrade would fail.", "commit_aliases": ["8747b969f", "94939c5f3", "97cd4b65a", "cb2ef0e92", "e039b09f8"], "source_commits": ["cb2ef0e92"], "source_entry_id": "17.8/changes/046", "db_id": "ba56a98c48c3c98e929510554c2c7d1f", "patch_ids": ["0f6a9848b48d4b26e3e4691043d1c86b"], "statement_hash": "55f06afcc35f279a01bd7723ea6dc23f0393b803bcd2fbe9ea5c0600d99ed0ea", "relations": [{"rule": 2, "type": "equivalent", "target": "4da7f3aac2517d05e54bea6d3c1ab25e", "evidence": {"same_day": true, "patch_ids": ["0f6a9848b48d4b26e3e4691043d1c86b"], "statement_hash": "55f06afcc35f279a01bd7723ea6dc23f0393b803bcd2fbe9ea5c0600d99ed0ea"}}, {"rule": 2, "type": "equivalent", "target": "89127b250f2abea1a64f754f71c48c77", "evidence": {"same_day": true, "patch_ids": ["0f6a9848b48d4b26e3e4691043d1c86b"], "statement_hash": "55f06afcc35f279a01bd7723ea6dc23f0393b803bcd2fbe9ea5c0600d99ed0ea"}}, {"rule": 2, "type": "equivalent", "target": "a4ce7629005a43b316bb9b4fbdb478ad", "evidence": {"same_day": true, "patch_ids": ["0f6a9848b48d4b26e3e4691043d1c86b"], "statement_hash": "55f06afcc35f279a01bd7723ea6dc23f0393b803bcd2fbe9ea5c0600d99ed0ea"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "a4ce7629005a43b316bb9b4fbdb478ad", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "使 pg_resetwal 允许将下一个多事务 xid 设置为 0 或将下一个多事务偏移量设置为 UINT32_MAX", "evidence": {"same_day": true, "patch_ids": ["0f6a9848b48d4b26e3e4691043d1c86b"], "statement_hash": "55f06afcc35f279a01bd7723ea6dc23f0393b803bcd2fbe9ea5c0600d99ed0ea"}, "url": "/docs/compare/?release=18.2#18.2-b3adbf7cc127bf87", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "89127b250f2abea1a64f754f71c48c77", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "使 pg_resetwal 允许将下一个多事务 xid 设置为 0 或将下一个多事务偏移量设置为 UINT32_MAX", "evidence": {"same_day": true, "patch_ids": ["0f6a9848b48d4b26e3e4691043d1c86b"], "statement_hash": "55f06afcc35f279a01bd7723ea6dc23f0393b803bcd2fbe9ea5c0600d99ed0ea"}, "url": "/docs/compare/?release=16.12#16.12-be4ccb27fcd54b62", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "4da7f3aac2517d05e54bea6d3c1ab25e", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "使 pg_resetwal 允许将下一个多事务 xid 设置为 0 或将下一个多事务偏移量设置为 UINT32_MAX", "evidence": {"same_day": true, "patch_ids": ["0f6a9848b48d4b26e3e4691043d1c86b"], "statement_hash": "55f06afcc35f279a01bd7723ea6dc23f0393b803bcd2fbe9ea5c0600d99ed0ea"}, "url": "/docs/compare/?release=15.16#15.16-fed3a8dfafe193ba", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}]}, {"id": "17.8-ab740b8bd4036a5f", "cves": [], "html": "在 contrib/amcheck 中，为 B-树索引父节点检查使用正确的快照（Mihail Nikalayeu）§ §
之前的代码在检查使用 CREATE INDEX CONCURRENTLY 创建的索引时会产生虚假错误。
修复 contrib/amcheck 以正确处理“半死亡” B-树索引页面（Heikki Linnakangas）§
amcheck 期望此类页面有一个父级下行链接，但实际上没有，导致关于 “mismatch between parent key and child high key” 的虚假错误报告。
修复 contrib/amcheck 以正确处理不完整的 B-树根页面分裂（Heikki Linnakangas）§
amcheck 可能会报告关于 “block is not true root” 的虚假错误。
修复 contrib/intarray 中 @@ 选择率估算器的边界情况整数溢出问题（Chao Li）§
这可能导致在涉及最大整数值的情况下产生不准确的选择率估算。
", "text": "修复 contrib/intarray 中 @@ 选择率估算器的边界情况整数溢出问题（Chao Li）§ 这可能导致在涉及最大整数值的情况下产生不准确的选择率估算。", "title": "修复 contrib/intarray 中 @@ 选择率估算器的边界情况整数溢出问题", "commits": ["a5f2dc421"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "c4c37e0f7a6e07f06d83e21ea456994fce6b45225bccff9bad2e6c7d7cdcc3ec", "section_path": ["变更"], "commit_groups": [["07c1c6ec5", "4f49e4b55", "54f82c4aa", "67a6fd507", "a5f2dc421", "c89510431"]], "identity_text": "Fix edge-case integer overflow in contrib/intarray's selectivity estimator for @@ (Chao Li) This could cause poor selectivity estimates to be produced for cases involving the maximum integer value.", "commit_aliases": ["07c1c6ec5", "4f49e4b55", "54f82c4aa", "67a6fd507", "a5f2dc421", "c89510431"], "source_commits": ["a5f2dc421"], "source_entry_id": "17.8/changes/050", "db_id": "8280d414e29b698e7a7b5bdab7d65a67", "patch_ids": ["6827108dafb7fb952c98263cf81bfb12"], "statement_hash": "15b336d5589f6d629fe8bb0549cd193d78524753cdd06cfede921f7dce003daf", "relations": [{"rule": 2, "type": "equivalent", "target": "1285579c66ecba8872eb8b17f3bc4e1b", "evidence": {"same_day": true, "patch_ids": ["6827108dafb7fb952c98263cf81bfb12"], "statement_hash": "15b336d5589f6d629fe8bb0549cd193d78524753cdd06cfede921f7dce003daf"}}, {"rule": 2, "type": "equivalent", "target": "59e2d3bf9637de09505f940988dcd182", "evidence": {"same_day": true, "patch_ids": ["6827108dafb7fb952c98263cf81bfb12"], "statement_hash": "15b336d5589f6d629fe8bb0549cd193d78524753cdd06cfede921f7dce003daf"}}, {"rule": 2, "type": "equivalent", "target": "81dbabd3964ac7d16575fec8b0e775d4", "evidence": {"same_day": true, "patch_ids": ["6827108dafb7fb952c98263cf81bfb12"], "statement_hash": "15b336d5589f6d629fe8bb0549cd193d78524753cdd06cfede921f7dce003daf"}}, {"rule": 2, "type": "equivalent", "target": "e129aabe6a0e432884befb054f303449", "evidence": {"same_day": true, "patch_ids": ["6827108dafb7fb952c98263cf81bfb12"], "statement_hash": "15b336d5589f6d629fe8bb0549cd193d78524753cdd06cfede921f7dce003daf"}}], "version": "17.8", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "e129aabe6a0e432884befb054f303449", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "修复 contrib/intarray 中 @@ 选择率估算器的边界情况整数溢出问题", "evidence": {"same_day": true, "patch_ids": ["6827108dafb7fb952c98263cf81bfb12"], "statement_hash": "15b336d5589f6d629fe8bb0549cd193d78524753cdd06cfede921f7dce003daf"}, "url": "/docs/compare/?release=18.2#18.2-a45188e655691d38", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "1285579c66ecba8872eb8b17f3bc4e1b", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "修复 contrib/intarray 中 @@ 选择率估算器的边界情况整数溢出问题", "evidence": {"same_day": true, "patch_ids": ["6827108dafb7fb952c98263cf81bfb12"], "statement_hash": "15b336d5589f6d629fe8bb0549cd193d78524753cdd06cfede921f7dce003daf"}, "url": "/docs/compare/?release=16.12#16.12-5a125ae178db396f", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "81dbabd3964ac7d16575fec8b0e775d4", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "修复 contrib/intarray 中 @@ 选择率估算器的边界情况整数溢出问题", "evidence": {"same_day": true, "patch_ids": ["6827108dafb7fb952c98263cf81bfb12"], "statement_hash": "15b336d5589f6d629fe8bb0549cd193d78524753cdd06cfede921f7dce003daf"}, "url": "/docs/compare/?release=15.16#15.16-f389445655314c8a", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "59e2d3bf9637de09505f940988dcd182", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "修复 contrib/intarray 中 @@ 选择率估算器的边界情况整数溢出问题", "evidence": {"same_day": true, "patch_ids": ["6827108dafb7fb952c98263cf81bfb12"], "statement_hash": "15b336d5589f6d629fe8bb0549cd193d78524753cdd06cfede921f7dce003daf"}, "url": "/docs/compare/?release=14.21#14.21-b90e49b89a9df63b", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}, {"id": "17.8-cb9f9359b4259ec9", "cves": [], "html": "修复 contrib/ltree 中的多字节编码问题（Jeff Davis）§
之前的代码可能将不完整的多字节字符传递给 lower()，可能导致不正确的行为。
将时区数据文件更新到 tzdata 2025c 版本（Tom Lane）§
\n唯一的变更是下加利福尼亚 1976 年之前时间戳的历史数据。
", "text": "将时区数据文件更新到 tzdata 2025c 版本（Tom Lane）§ 唯一的变更是下加利福尼亚 1976 年之前时间戳的历史数据。", "title": "将时区数据文件更新到 tzdata 2025c 版本", "commits": ["f87c0b84e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.8/#RELEASE-17-8-CHANGES", "source_hash": "4a4a5c14c16055f8cc102eae34ef59364d05a4f004b401d042290d4646ff609a", "section_path": ["变更"], "commit_groups": [["00410b76d", "228fe0c3e", "6574bee64", "8bbf28191", "d852d105e", "f87c0b84e"]], "identity_text": "Update time zone data files to tzdata release 2025c (Tom Lane) The only change is in historical data for pre-1976 timestamps in Baja California.", "commit_aliases": ["00410b76d", "228fe0c3e", "6574bee64", "8bbf28191", "d852d105e", "f87c0b84e"], "source_commits": ["f87c0b84e"], "source_entry_id": "17.8/changes/052", "db_id": "e11e7a4857357ba2a4255391b7eb4033", "patch_ids": ["248cd6c3eee33cd4c82f09ee1d6af621"], "statement_hash": "da0a28a77bd7a205873150e5d6559af4853f986168d43f9537c2dbe1b0158a5b", "relations": [{"rule": 2, "type": "equivalent", "target": "1e212940a15748de8b9d8f9f8a00221c", "evidence": {"same_day": true, "patch_ids": ["248cd6c3eee33cd4c82f09ee1d6af621"], "statement_hash": "da0a28a77bd7a205873150e5d6559af4853f986168d43f9537c2dbe1b0158a5b"}}, {"rule": 2, "type": "equivalent", "target": "6a2a6f129d457a35195c94f742bac1c7", "evidence": {"same_day": true, "patch_ids": ["248cd6c3eee33cd4c82f09ee1d6af621"], "statement_hash": "da0a28a77bd7a205873150e5d6559af4853f986168d43f9537c2dbe1b0158a5b"}}, {"rule": 2, "type": "equivalent", "target": "8fe4829a60aad3b491b6cf8cc56b6b67", "evidence": {"same_day": true, "patch_ids": ["248cd6c3eee33cd4c82f09ee1d6af621"], "statement_hash": "da0a28a77bd7a205873150e5d6559af4853f986168d43f9537c2dbe1b0158a5b"}}, {"rule": 2, "type": "equivalent", "target": "af6fece6fb7485ca9609d00ddf419b69", "evidence": {"same_day": true, "patch_ids": ["248cd6c3eee33cd4c82f09ee1d6af621"], "statement_hash": "da0a28a77bd7a205873150e5d6559af4853f986168d43f9537c2dbe1b0158a5b"}}], "version": "17.8", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "1e212940a15748de8b9d8f9f8a00221c", "kind": "equivalent", "version": "18.2", "label": "18.2", "title": "将时区数据文件更新到 tzdata 2025c 版本", "evidence": {"same_day": true, "patch_ids": ["248cd6c3eee33cd4c82f09ee1d6af621"], "statement_hash": "da0a28a77bd7a205873150e5d6559af4853f986168d43f9537c2dbe1b0158a5b"}, "url": "/docs/compare/?release=18.2#18.2-4cbf16ee6dc57970", "source_url": "/docs/release/18.2/#RELEASE-18-2-CHANGES"}, {"db_id": "6a2a6f129d457a35195c94f742bac1c7", "kind": "equivalent", "version": "16.12", "label": "16.12", "title": "将时区数据文件更新到 tzdata 2025c 版本", "evidence": {"same_day": true, "patch_ids": ["248cd6c3eee33cd4c82f09ee1d6af621"], "statement_hash": "da0a28a77bd7a205873150e5d6559af4853f986168d43f9537c2dbe1b0158a5b"}, "url": "/docs/compare/?release=16.12#16.12-6eb2ba686b659281", "source_url": "/docs/release/16.12/#RELEASE-16-12-CHANGES"}, {"db_id": "8fe4829a60aad3b491b6cf8cc56b6b67", "kind": "equivalent", "version": "15.16", "label": "15.16", "title": "将时区数据文件更新到 tzdata 2025c 版本", "evidence": {"same_day": true, "patch_ids": ["248cd6c3eee33cd4c82f09ee1d6af621"], "statement_hash": "da0a28a77bd7a205873150e5d6559af4853f986168d43f9537c2dbe1b0158a5b"}, "url": "/docs/compare/?release=15.16#15.16-c4e519f4ba92f2b8", "source_url": "/docs/release/15.16/#ZH-AUTO-RELEASE-15-SECT2-4"}, {"db_id": "af6fece6fb7485ca9609d00ddf419b69", "kind": "equivalent", "version": "14.21", "label": "14.21", "title": "将时区数据文件更新到 tzdata 2025c 版本", "evidence": {"same_day": true, "patch_ids": ["248cd6c3eee33cd4c82f09ee1d6af621"], "statement_hash": "da0a28a77bd7a205873150e5d6559af4853f986168d43f9537c2dbe1b0158a5b"}, "url": "/docs/compare/?release=14.21#14.21-af62fd071fbac039", "source_url": "/docs/release/14.21/#ZH-AUTO-RELEASE-14-SECT2-4"}]}]}, {"date": "2025-11-13", "build": "17.7", "major": "17", "minor": 7, "manual": "17", "status": "stable", "doc_git": "", "version": "17.7", "eol_date": "2029-11-08", "date_text": "2025-11-13", "supported": true, "manual_url": "/docs/17/release-17-7.html", "source_url": "/docs/release/17.7/", "entry_count": 65, "placeholder": false, "content_hash": "6935d69d61b12a81d218a6168328d7f7a61739a55f8dd18b36b4bc3a4f554f03", "manual_build": "17.11", "source_as_of": "", "changes_count": 65, "doc_loaded_at": "2026-09-26T02:56:35.922301", "migration_html": "对于运行 17.X 的用户，无需执行转储/恢复。
\n但是，如果你从早于 17.6 的版本升级，请参见第 E.6 节。
", "compatibility_count": 0, "label": "17.7", "status_label": "受支持版本", "eol": "2029-11-08", "age_days": 321, "support_days": 1135, "entries": [{"id": "17.7-36aab10e5138d3d1", "cves": ["CVE-2025-12817"], "html": "检查 CREATE STATISTICS 中模式的 CREATE 权限（Jelte Fennema-Nio）§
此遗漏允许表的所有者在任何模式中创建统计对象，可能导致意外的命名冲突。
\nPostgreSQL 项目感谢 Jelte Fennema-Nio 报告此问题。（CVE-2025-12817）
", "text": "检查 CREATE STATISTICS 中模式的 CREATE 权限（Jelte Fennema-Nio）§ 此遗漏允许表的所有者在任何模式中创建统计对象，可能导致意外的命名冲突。 PostgreSQL 项目感谢 Jelte Fennema-Nio 报告此问题。（CVE-2025-12817）", "title": "检查 CREATE STATISTICS 中模式的 CREATE 权限", "commits": ["e2fb3dfa8"], "section": "变更", "category": "security", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "f826f25aac531e3be729dd225713fc979af6e3da3e6dddf245ec738d78d4e1b2", "section_path": ["变更"], "commit_groups": [["00eb646ea", "2393d374a", "5e4fcbe53", "8a2530ebc", "95cce5669", "d20abb587", "e2fb3dfa8"]], "identity_text": "Check for CREATE privileges on the schema in CREATE STATISTICS (Jelte Fennema-Nio) This omission allowed table owners to create statistics in any schema, potentially leading to unexpected naming conflicts. The PostgreSQL Project thanks Jelte Fennema-Nio for reporting this problem. (CVE-2025-12817)", "commit_aliases": ["00eb646ea", "2393d374a", "5e4fcbe53", "8a2530ebc", "95cce5669", "d20abb587", "e2fb3dfa8"], "source_commits": ["e2fb3dfa8"], "source_entry_id": "17.7/changes/001", "db_id": "6167ff71ba63659939df7295a1784bd5", "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704", "relations": [{"rule": 2, "type": "equivalent", "target": "0b1db4254a2e3444434b0ca4004ea84b", "evidence": {"same_day": true, "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704"}}, {"rule": 2, "type": "equivalent", "target": "3aabd99e8b497ed573a9c3988472f89b", "evidence": {"same_day": true, "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704"}}, {"rule": 2, "type": "equivalent", "target": "5434410099d24e095f2f3662e9b084be", "evidence": {"same_day": true, "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704"}}, {"rule": 2, "type": "equivalent", "target": "7a542e168dfd911c88c2817105ab4eb1", "evidence": {"same_day": true, "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704"}}, {"rule": 2, "type": "equivalent", "target": "fc4febff3c2281775597453f96dfd148", "evidence": {"same_day": true, "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704"}}], "version": "17.7", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "0b1db4254a2e3444434b0ca4004ea84b", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "检查 CREATE STATISTICS 中模式的 CREATE 权限", "evidence": {"same_day": true, "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704"}, "url": "/docs/compare/?release=18.1#18.1-45bd7bfaea1c1e6c", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "fc4febff3c2281775597453f96dfd148", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "检查 CREATE STATISTICS 中模式的 CREATE 权限", "evidence": {"same_day": true, "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704"}, "url": "/docs/compare/?release=16.11#16.11-de601249f8288957", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "3aabd99e8b497ed573a9c3988472f89b", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "检查 CREATE STATISTICS 中模式的 CREATE 权限", "evidence": {"same_day": true, "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704"}, "url": "/docs/compare/?release=15.15#15.15-41d0e2da68ae7d2f", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "7a542e168dfd911c88c2817105ab4eb1", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "检查 CREATE STATISTICS 中模式的 CREATE 权限", "evidence": {"same_day": true, "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704"}, "url": "/docs/compare/?release=14.20#14.20-1acfdd0cd4bbd28d", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "5434410099d24e095f2f3662e9b084be", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "检查 CREATE STATISTICS 中模式的 CREATE 权限", "evidence": {"same_day": true, "patch_ids": ["99e1ddd8be3f2e70a07b173bce56eec6"], "statement_hash": "2fdab1083a50be24b1dca00ede9ffd5906a617c6df360497714a885f6ff9f704"}, "url": "/docs/compare/?release=13.23#13.23-5bf870f01e021d82", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-a326b8fad6479f02", "cves": ["CVE-2025-12818"], "html": "避免 libpq 中分配大小计算的整数溢出（Jacob Champion）§
\nlibpq 中有多处对内存分配所需大小的计算不够谨慎。足够大的输入可能导致整数溢出，从而分配一个不够大的缓冲区，进而导致写入超出缓冲区的末尾。
\nPostgreSQL 项目感谢 Positive Technologies 的 Aleksey Solovev 报告此问题。（CVE-2025-12818）
", "text": "避免 libpq 中分配大小计算的整数溢出（Jacob Champion）§ libpq 中有多处对内存分配所需大小的计算不够谨慎。足够大的输入可能导致整数溢出，从而分配一个不够大的缓冲区，进而导致写入超出缓冲区的末尾。 PostgreSQL 项目感谢 Positive Technologies 的 Aleksey Solovev 报告此问题。（CVE-2025-12818）", "title": "避免 libpq 中分配大小计算的整数溢出", "commits": ["f5999f018"], "section": "变更", "category": "security", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "ec34e56ba8a3959c94d5734e1e78072976f6bf9226c9ca765b5dfc68eb4dc3a6", "section_path": ["变更"], "commit_groups": [["585fd9b3c", "600086f47", "7eb8fcad8", "91421565f", "96d2c7e96", "d6f0c0d6d", "f5999f018"]], "identity_text": "Avoid integer overflow in allocation-size calculations within libpq (Jacob Champion) Several places in libpq were not sufficiently careful about computing the required size of a memory allocation. Sufficiently large inputs could cause integer overflow, resulting in an undersized buffer, which would then lead to writing past the end of the buffer. The PostgreSQL Project thanks Aleksey Solovev of Positive Technologies for reporting this problem. 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正确地将 JSON 构造器表达式（如 JSON_OBJECT()）视为非严格的（Tender Wang，Richard Guo）§
在某些情况下，这些表达式即使有一个或多个空值输入也能产生非空结果，因此它们是非严格的。规划器错误地将它们分类为严格的，从而可能执行不正确的查询转换。
", "text": "正确地将 JSON 构造器表达式（如 JSON_OBJECT()）视为非严格的（Tender Wang，Richard Guo）§ 在某些情况下，这些表达式即使有一个或多个空值输入也能产生非空结果，因此它们是非严格的。规划器错误地将它们分类为严格的，从而可能执行不正确的查询转换。", "title": "正确地将 JSON 构造器表达式（如 JSON_OBJECT()）视为非严格的", "commits": ["d719e2ecb"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "853836b6373321cb25de6a02651f24388e40fa54cc6e4fd5ea60d56863b72535", "section_path": ["变更"], "commit_groups": [["62397bb18", "b63a82245", "d29a3f4b4", "d719e2ecb"]], "identity_text": "Correctly treat JSON constructor expressions, such as JSON_OBJECT(), as non-strict (Tender Wang, Richard Guo) In some cases these expressions can yield a non-null result despite having one or more null inputs, making them non-strict. The planner incorrectly classified them as strict and could perform incorrect query transformations as a result.", "commit_aliases": ["62397bb18", "b63a82245", "d29a3f4b4", "d719e2ecb"], "source_commits": ["d719e2ecb"], "source_entry_id": "17.7/changes/004", "db_id": "28ca27a9683f6edc13774e976e73c4f2", "patch_ids": ["994768e319ddd31b17a796ae0bc14fc0"], "statement_hash": "17f21d168180cbfc4ac2eceb68889872e92791f0dbc08276ff5e6e1fa9206296", "relations": [{"rule": 2, "type": "equivalent", "target": "5ba5639ee67023888c89c2a8f0438210", "evidence": {"same_day": true, "patch_ids": ["994768e319ddd31b17a796ae0bc14fc0"], "statement_hash": "17f21d168180cbfc4ac2eceb68889872e92791f0dbc08276ff5e6e1fa9206296"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "5ba5639ee67023888c89c2a8f0438210", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "正确地将 JSON 构造器表达式（如 JSON_OBJECT()）视为非严格的", "evidence": {"same_day": true, "patch_ids": ["994768e319ddd31b17a796ae0bc14fc0"], "statement_hash": "17f21d168180cbfc4ac2eceb68889872e92791f0dbc08276ff5e6e1fa9206296"}, "url": "/docs/compare/?release=16.11#16.11-8b752ba182c1f710", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}]}, {"id": "17.7-da7ba63a6535d5ee", "cves": [], "html": "进一步修复 SIMILAR TO 正则表达式中字符类的处理（Laurenz Albe）§
之前将 SIMILAR TO 模式匹配表达式转换为 POSIX 风格正则表达式的修复破坏了一个之前有效的边界情况：如果在左方括号之后紧接着一个转义字符，然后在转义序列之后紧接着一个右方括号（例如 [\\w]），右方括号将不再被视为字符类的终止符。
修复对参数包含子查询且该子查询中有 FROM 引用聚合函数外部 CTE 的聚合函数的解析问题（Tom Lane）§
这样的 CTE 引用在确定聚合的语义层级时必须像外层列引用一样处理，但之前没有被考虑在内，导致了晦涩的规划器或执行器错误。
", "text": "修复对参数包含子查询且该子查询中有 FROM 引用聚合函数外部 CTE 的聚合函数的解析问题（Tom Lane）§ 这样的 CTE 引用在确定聚合的语义层级时必须像外层列引用一样处理，但之前没有被考虑在内，导致了晦涩的规划器或执行器错误。", "title": "修复对参数包含子查询且该子查询中有 FROM 引用聚合函数外部 CTE 的聚合函数的解析问题", "commits": ["e830896c1"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "95b141aceea6c2d3339037d6b4a4494564e9fab991e4833ce0c98a82bb5e4cbc", "section_path": ["变更"], "commit_groups": [["31bf09632", "4eab45649", "7df74e635", "afd18f276", "b0cc0a71e", "b649ef244", "e830896c1"]], "identity_text": "Fix parsing of aggregate functions whose arguments contain a sub-select with a FROM reference to a CTE outside the aggregate function (Tom Lane) Such a CTE reference must act like a outer-level column reference when determining the aggregate's semantic level; but it was not being accounted for, leading to obscure planner or executor errors.", "commit_aliases": ["31bf09632", "4eab45649", "7df74e635", "afd18f276", "b0cc0a71e", "b649ef244", "e830896c1"], "source_commits": ["e830896c1"], "source_entry_id": "17.7/changes/006", "db_id": "9b994a98438fd30222b16d67c861c04f", "patch_ids": ["764fe240bdd6c66a1ae1b512c5f9d9fa"], "statement_hash": "6c59c9afd476bfa04a78114953d6cd6ef60d44b7f7b6d29030c3250fc71c6e8f", "relations": [{"rule": 2, "type": "equivalent", "target": "48bd01e91a13d4e5586eb1d5e90f7841", "evidence": {"same_day": true, "patch_ids": ["764fe240bdd6c66a1ae1b512c5f9d9fa"], "statement_hash": "6c59c9afd476bfa04a78114953d6cd6ef60d44b7f7b6d29030c3250fc71c6e8f"}}, {"rule": 2, "type": "equivalent", "target": "496274d3f10dbd29bc080049d8d677b1", "evidence": {"same_day": true, "patch_ids": ["764fe240bdd6c66a1ae1b512c5f9d9fa"], "statement_hash": "6c59c9afd476bfa04a78114953d6cd6ef60d44b7f7b6d29030c3250fc71c6e8f"}}, {"rule": 2, "type": "equivalent", "target": "655b2c30e54df5842d2bbb82e898c78f", "evidence": {"same_day": true, "patch_ids": ["764fe240bdd6c66a1ae1b512c5f9d9fa"], "statement_hash": "6c59c9afd476bfa04a78114953d6cd6ef60d44b7f7b6d29030c3250fc71c6e8f"}}, {"rule": 2, "type": "equivalent", "target": "ea36580551561ed6223f1508f1946e4e", "evidence": {"same_day": true, "patch_ids": ["764fe240bdd6c66a1ae1b512c5f9d9fa"], "statement_hash": "6c59c9afd476bfa04a78114953d6cd6ef60d44b7f7b6d29030c3250fc71c6e8f"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "655b2c30e54df5842d2bbb82e898c78f", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复对参数包含子查询且该子查询中有 FROM 引用聚合函数外部 CTE 的聚合函数的解析问题", "evidence": {"same_day": true, "patch_ids": ["764fe240bdd6c66a1ae1b512c5f9d9fa"], "statement_hash": "6c59c9afd476bfa04a78114953d6cd6ef60d44b7f7b6d29030c3250fc71c6e8f"}, "url": "/docs/compare/?release=16.11#16.11-197cbe6bbef1cc79", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "496274d3f10dbd29bc080049d8d677b1", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复对参数包含子查询且该子查询中有 FROM 引用聚合函数外部 CTE 的聚合函数的解析问题", "evidence": {"same_day": true, "patch_ids": ["764fe240bdd6c66a1ae1b512c5f9d9fa"], "statement_hash": "6c59c9afd476bfa04a78114953d6cd6ef60d44b7f7b6d29030c3250fc71c6e8f"}, "url": "/docs/compare/?release=15.15#15.15-26debfeb7f98ef7e", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "48bd01e91a13d4e5586eb1d5e90f7841", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "修复对参数包含子查询且该子查询中有 FROM 引用聚合函数外部 CTE 的聚合函数的解析问题", "evidence": {"same_day": true, "patch_ids": ["764fe240bdd6c66a1ae1b512c5f9d9fa"], "statement_hash": "6c59c9afd476bfa04a78114953d6cd6ef60d44b7f7b6d29030c3250fc71c6e8f"}, "url": "/docs/compare/?release=14.20#14.20-86bc742902dd05d4", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "ea36580551561ed6223f1508f1946e4e", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "修复对参数包含子查询且该子查询中有 FROM 引用聚合函数外部 CTE 的聚合函数的解析问题", "evidence": {"same_day": true, "patch_ids": ["764fe240bdd6c66a1ae1b512c5f9d9fa"], "statement_hash": "6c59c9afd476bfa04a78114953d6cd6ef60d44b7f7b6d29030c3250fc71c6e8f"}, "url": "/docs/compare/?release=13.23#13.23-601ca99d891c2e51", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-8b44b6089b2752d8", "cves": [], "html": "修复估算 SubPlan 代价时在边界情况下出现的 “no relation entry for relid” 错误（Richard Guo）§
", "text": "修复估算 SubPlan 代价时在边界情况下出现的 “no relation entry for relid” 错误（Richard Guo）§", "title": "修复估算 SubPlan 代价时在边界情况下出现的 “no relation entry for relid” 错误", "commits": ["f34202f51"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "081f559eaf9da6dea8dc5749fbd170c9c92cd2fda48267b96116a3ec005d8977", "section_path": ["变更"], "commit_groups": [["160ef51c8", "53e35fb56", "79ade5873", "8c02d92c6", "ab4a35b4e", "aba8f61c3", "f34202f51"]], "identity_text": "Fix no relation entry for relid errors in corner cases while estimating SubPlan costs (Richard Guo)", "commit_aliases": ["160ef51c8", "53e35fb56", "79ade5873", "8c02d92c6", "ab4a35b4e", "aba8f61c3", "f34202f51"], "source_commits": ["f34202f51"], "source_entry_id": "17.7/changes/007", "db_id": "304a5f5d1d97c55f6eb257f030200a63", "patch_ids": ["d8decfc9f5a72358b7840d271a5ac6a1"], "statement_hash": "cdd2abdad595de6306111fbaf218760c0f0a3957c324b42cbe4aae3519054969", "relations": [{"rule": 2, "type": "equivalent", "target": "75260513242373459b8abd97a5fd39da", "evidence": {"same_day": true, "patch_ids": ["d8decfc9f5a72358b7840d271a5ac6a1"], "statement_hash": "cdd2abdad595de6306111fbaf218760c0f0a3957c324b42cbe4aae3519054969"}}, {"rule": 2, "type": "equivalent", "target": "d6a72085447f9bf689070d6ca738913a", "evidence": {"same_day": true, "patch_ids": ["d8decfc9f5a72358b7840d271a5ac6a1"], "statement_hash": "cdd2abdad595de6306111fbaf218760c0f0a3957c324b42cbe4aae3519054969"}}, {"rule": 2, "type": "equivalent", "target": "df536c487716b8451c39cf180217de1a", "evidence": {"same_day": true, "patch_ids": ["d8decfc9f5a72358b7840d271a5ac6a1"], "statement_hash": "cdd2abdad595de6306111fbaf218760c0f0a3957c324b42cbe4aae3519054969"}}, {"rule": 2, "type": "equivalent", "target": "f05b18a5008769565327db41a4723345", "evidence": {"same_day": true, "patch_ids": ["d8decfc9f5a72358b7840d271a5ac6a1"], "statement_hash": "cdd2abdad595de6306111fbaf218760c0f0a3957c324b42cbe4aae3519054969"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "d6a72085447f9bf689070d6ca738913a", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复估算 SubPlan 代价时在边界情况下出现的 “no relation entry for relid” 错误", "evidence": {"same_day": true, "patch_ids": ["d8decfc9f5a72358b7840d271a5ac6a1"], "statement_hash": "cdd2abdad595de6306111fbaf218760c0f0a3957c324b42cbe4aae3519054969"}, "url": "/docs/compare/?release=16.11#16.11-085229346703afeb", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "df536c487716b8451c39cf180217de1a", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复估算 SubPlan 代价时在边界情况下出现的 “no relation entry for relid” 错误", "evidence": {"same_day": true, "patch_ids": ["d8decfc9f5a72358b7840d271a5ac6a1"], "statement_hash": "cdd2abdad595de6306111fbaf218760c0f0a3957c324b42cbe4aae3519054969"}, "url": "/docs/compare/?release=15.15#15.15-7cf40c4e16cb1fa3", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "f05b18a5008769565327db41a4723345", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "修复估算 SubPlan 代价时在边界情况下出现的 “no relation entry for relid” 错误", "evidence": {"same_day": true, "patch_ids": ["d8decfc9f5a72358b7840d271a5ac6a1"], "statement_hash": "cdd2abdad595de6306111fbaf218760c0f0a3957c324b42cbe4aae3519054969"}, "url": "/docs/compare/?release=14.20#14.20-765079b0a221fb3b", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "75260513242373459b8abd97a5fd39da", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "修复估算 SubPlan 代价时在边界情况下出现的“no relation entry for relid”错误", "evidence": {"same_day": true, "patch_ids": ["d8decfc9f5a72358b7840d271a5ac6a1"], "statement_hash": "cdd2abdad595de6306111fbaf218760c0f0a3957c324b42cbe4aae3519054969"}, "url": "/docs/compare/?release=13.23#13.23-beef60f9007c0ef3", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-164b443b931303fa", "cves": [], "html": "避免规划器在展开分区表时极小概率出现释放后继续使用的问题（Bernd Reiß）§
\n只有在最后一个仍存活的分区被并发删除时，才存在这种风险。
", "text": "避免规划器在展开分区表时极小概率出现释放后继续使用的问题（Bernd Reiß）§ 只有在最后一个仍存活的分区被并发删除时，才存在这种风险。", "title": "避免规划器在展开分区表时极小概率出现释放后继续使用的问题", "commits": ["ed394c4bd"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "67b52e241cf41e2a51797c364ef248e4406bfe1afd35af3874f11f7cb86c3e6c", "section_path": ["变更"], "commit_groups": [["4aea55891", "8286bce0a", "da9f9f75e", "ed394c4bd", "f0fe1da50"]], "identity_text": "Avoid unlikely use-after-free in planner's expansion of partitioned tables (Bernd Reiß) There was a hazard only when the last live partition was concurrently dropped.", "commit_aliases": ["4aea55891", "8286bce0a", "da9f9f75e", "ed394c4bd", "f0fe1da50"], "source_commits": ["ed394c4bd"], "source_entry_id": "17.7/changes/008", "db_id": "773719d08d7a0c40dad955952ee23479", "patch_ids": ["e55e2f457210a4ce7dcb76716b923ec9"], "statement_hash": "480521d78d2c88791ac9de6e5bd6149c708d33245ac725282a3cf23ee83dcca7", "relations": [{"rule": 2, "type": "equivalent", "target": "1f57d40736bdabe9bc8a77869d9c9b04", "evidence": {"same_day": true, "patch_ids": ["e55e2f457210a4ce7dcb76716b923ec9"], "statement_hash": "480521d78d2c88791ac9de6e5bd6149c708d33245ac725282a3cf23ee83dcca7"}}, {"rule": 2, "type": "equivalent", "target": "63f6370f34ea6318e9d5166d5c367e81", "evidence": {"same_day": true, "patch_ids": ["e55e2f457210a4ce7dcb76716b923ec9"], "statement_hash": "480521d78d2c88791ac9de6e5bd6149c708d33245ac725282a3cf23ee83dcca7"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "63f6370f34ea6318e9d5166d5c367e81", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "避免规划器在展开分区表时极小概率出现释放后继续使用的问题", "evidence": {"same_day": true, "patch_ids": ["e55e2f457210a4ce7dcb76716b923ec9"], "statement_hash": "480521d78d2c88791ac9de6e5bd6149c708d33245ac725282a3cf23ee83dcca7"}, "url": "/docs/compare/?release=16.11#16.11-c49fa00a0066ef15", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "1f57d40736bdabe9bc8a77869d9c9b04", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "避免规划器在展开分区表时极小概率出现释放后继续使用的问题", "evidence": {"same_day": true, "patch_ids": ["e55e2f457210a4ce7dcb76716b923ec9"], "statement_hash": "480521d78d2c88791ac9de6e5bd6149c708d33245ac725282a3cf23ee83dcca7"}, "url": "/docs/compare/?release=15.15#15.15-c5601e9945b5175b", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}]}, {"id": "17.7-0a5a861bce4d8e04", "cves": [], "html": "移除 B-树索引清理中的错误断言（Peter Geoghegan）§
", "text": "移除 B-树索引清理中的错误断言（Peter Geoghegan）§", "title": "移除 B-树索引清理中的错误断言", "commits": ["ae15cebc2"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "94e95d45f1c2479a3306461eded48b0c62d18af990239918e20ddcbed043dedf", "section_path": ["变更"], "commit_groups": [["314004021", "61de81a49", "843e50208", "ae15cebc2", "af302ff6b", "c160fd469", "ca0c93908"]], "identity_text": "Remove faulty assertion in btree index cleanup (Peter Geoghegan)", "commit_aliases": ["314004021", "61de81a49", "843e50208", "ae15cebc2", "af302ff6b", "c160fd469", "ca0c93908"], "source_commits": ["ae15cebc2"], "source_entry_id": "17.7/changes/009", "db_id": "488141078c6f2db091ee11544337a811", "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1", "relations": [{"rule": 2, "type": "equivalent", "target": "0a57a548c4b77cd7d910727d3c65b3a6", "evidence": {"same_day": true, "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1"}}, {"rule": 2, "type": "equivalent", "target": "1a0e9b151c18103e9e44e0d5b065435e", "evidence": {"same_day": true, "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1"}}, {"rule": 2, "type": "equivalent", "target": "3933929e20ae66e9831bcbabb992d203", "evidence": {"same_day": true, "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1"}}, {"rule": 2, "type": "equivalent", "target": "444038cce9bb99031a082f8098e1be72", "evidence": {"same_day": true, "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1"}}, {"rule": 2, "type": "equivalent", "target": "9e457bb041db2cbeaeaf7995dafca323", "evidence": {"same_day": true, "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "1a0e9b151c18103e9e44e0d5b065435e", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "移除 B-树索引清理中的错误断言", "evidence": {"same_day": true, "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1"}, "url": "/docs/compare/?release=18.1#18.1-b879ef73b7e33cee", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "3933929e20ae66e9831bcbabb992d203", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "移除 B-树索引清理中的错误断言", "evidence": {"same_day": true, "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1"}, "url": "/docs/compare/?release=16.11#16.11-d9b1b3d193f8b619", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "0a57a548c4b77cd7d910727d3c65b3a6", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "移除 B-树索引清理中的错误断言", "evidence": {"same_day": true, "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1"}, "url": "/docs/compare/?release=15.15#15.15-a04a5bb82b43a3d4", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "9e457bb041db2cbeaeaf7995dafca323", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "移除 B-树索引清理中的错误断言", "evidence": {"same_day": true, "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1"}, "url": "/docs/compare/?release=14.20#14.20-5e29cf4287b439af", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "444038cce9bb99031a082f8098e1be72", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "移除 B-树索引清理中的错误断言", "evidence": {"same_day": true, "patch_ids": ["37c608f60096a634457e03ef403861d6"], "statement_hash": "10a7d45ffeb0f11200d10e8732198f5dd91b4ea27bc91850c29a64cd2e8239a1"}, "url": "/docs/compare/?release=13.23#13.23-14a74180f99d2672", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-90e7f7363f5668ce", "cves": [], "html": "修复在有多个扫描条件的 GIN 索引扫描中可能出现的无限循环（Tom Lane）§
\nGIN 可以处理能够拒绝不匹配条目但不适用于搜索相关条目的扫描条件，例如 tsquery 子句如 !term。但此类条件不能排在扫描条件数组的第一个位置。代码在所有情况下都未能确保这一点，导致包含此类条件与正常条件混合的查询可能根据查询中条件给出的顺序不同而正常工作或不工作。
确保 GIN 索引扫描可以被取消（Tom Lane）§
\n某些代码路径能够长时间运行而不检查中断。
", "text": "确保 GIN 索引扫描可以被取消（Tom Lane）§ 某些代码路径能够长时间运行而不检查中断。", "title": "确保 GIN 索引扫描可以被取消", "commits": ["d17abaea8"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "1c433fc8cd4c096556eb81026f35c4971d515d5e15c1bdf666089c6aae77fdd2", "section_path": ["变更"], "commit_groups": [["25eadfd0f", "44c2e5b76", "a7da746c1", "a9c1b9c1c", "b2d71c455", "b55068236", "d17abaea8"]], "identity_text": "Ensure that GIN index scans can be canceled (Tom Lane) Some code paths were capable of running for a long time without checking for interrupts.", "commit_aliases": ["25eadfd0f", "44c2e5b76", "a7da746c1", "a9c1b9c1c", "b2d71c455", "b55068236", "d17abaea8"], "source_commits": ["d17abaea8"], "source_entry_id": "17.7/changes/011", "db_id": "c902c6da0be42d2eb7c8740866d6bba6", "patch_ids": ["fec1a4bbceb6f21c116318b4726ea890"], "statement_hash": "63f0110202bb4e324f5e35e04d36c2e79a4b131ee03c7aaef9dfdd02a02eb601", "relations": [{"rule": 2, "type": "equivalent", "target": "545ab4f44b41bb88f8388e57bbc5e753", "evidence": {"same_day": true, "patch_ids": ["fec1a4bbceb6f21c116318b4726ea890"], "statement_hash": "63f0110202bb4e324f5e35e04d36c2e79a4b131ee03c7aaef9dfdd02a02eb601"}}, {"rule": 2, "type": "equivalent", "target": "9bf5b9f62848d9c4fbf7c451e24a7678", "evidence": {"same_day": true, "patch_ids": ["fec1a4bbceb6f21c116318b4726ea890"], "statement_hash": "63f0110202bb4e324f5e35e04d36c2e79a4b131ee03c7aaef9dfdd02a02eb601"}}, {"rule": 2, "type": "equivalent", "target": "bd1a8175f31114d3b4091952105cb89b", "evidence": {"same_day": true, "patch_ids": ["fec1a4bbceb6f21c116318b4726ea890"], "statement_hash": "63f0110202bb4e324f5e35e04d36c2e79a4b131ee03c7aaef9dfdd02a02eb601"}}, {"rule": 2, "type": "equivalent", "target": "ec300f825c44c3a251a22f92e910bb8c", "evidence": {"same_day": true, "patch_ids": ["fec1a4bbceb6f21c116318b4726ea890"], "statement_hash": "63f0110202bb4e324f5e35e04d36c2e79a4b131ee03c7aaef9dfdd02a02eb601"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "ec300f825c44c3a251a22f92e910bb8c", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "确保 GIN 索引扫描可以被取消", "evidence": {"same_day": true, "patch_ids": ["fec1a4bbceb6f21c116318b4726ea890"], "statement_hash": "63f0110202bb4e324f5e35e04d36c2e79a4b131ee03c7aaef9dfdd02a02eb601"}, "url": "/docs/compare/?release=16.11#16.11-0e47bb5c808391d4", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "9bf5b9f62848d9c4fbf7c451e24a7678", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "确保 GIN 索引扫描可以被取消", "evidence": {"same_day": true, "patch_ids": ["fec1a4bbceb6f21c116318b4726ea890"], "statement_hash": "63f0110202bb4e324f5e35e04d36c2e79a4b131ee03c7aaef9dfdd02a02eb601"}, "url": "/docs/compare/?release=15.15#15.15-d90fed169ad60200", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "545ab4f44b41bb88f8388e57bbc5e753", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "确保 GIN 索引扫描可以被取消", "evidence": {"same_day": true, "patch_ids": ["fec1a4bbceb6f21c116318b4726ea890"], "statement_hash": "63f0110202bb4e324f5e35e04d36c2e79a4b131ee03c7aaef9dfdd02a02eb601"}, "url": "/docs/compare/?release=14.20#14.20-ff0022457d5a07d4", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "bd1a8175f31114d3b4091952105cb89b", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "确保 GIN 索引扫描可以被取消", "evidence": {"same_day": true, "patch_ids": ["fec1a4bbceb6f21c116318b4726ea890"], "statement_hash": "63f0110202bb4e324f5e35e04d36c2e79a4b131ee03c7aaef9dfdd02a02eb601"}, "url": "/docs/compare/?release=13.23#13.23-cac6bf9a661f1a61", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-a8f10736234e0b39", "cves": [], "html": "确保 BRIN 自动汇总为需要快照的索引表达式提供快照（Álvaro Herrera）§ §
\n以前，此类索引的自动汇总会失败，然后留下占位索引元组，导致索引随时间膨胀。
", "text": "确保 BRIN 自动汇总为需要快照的索引表达式提供快照（Álvaro Herrera）§ § 以前，此类索引的自动汇总会失败，然后留下占位索引元组，导致索引随时间膨胀。", "title": "确保 BRIN 自动汇总为需要快照的索引表达式提供快照", "commits": ["3b5007347", "f4b68b033"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "d5cf1af0ad3529d08f610b4affe13766b9a28ea36b36b969777c9acfd7939057", "section_path": ["变更"], "commit_groups": [["0a3d27bfe", "20442cf50", "3b5007347", "65b0d1f74", "8733f0b54", "bcfbd3f74", "ef81697fe"], ["23ddadf68", "3c7b47974", "419ffde23", "6ef33c805", "a95e3d84c", "f0ad41716", "f4b68b033"]], "identity_text": "Ensure that BRIN autosummarization provides a snapshot for index expressions that need one (Álvaro Herrera) Previously, autosummarization would fail for such indexes, and then leave placeholder index tuples behind, causing the index to bloat over time.", "commit_aliases": ["0a3d27bfe", "20442cf50", "23ddadf68", "3b5007347", "3c7b47974", "419ffde23", "65b0d1f74", "6ef33c805", "8733f0b54", 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\n此疏忽可能导致无限循环或扫描不需要的表页面。
", "text": "修复当表接近 232 页时 BRIN 索引扫描中的整数溢出风险（Sunil S）§ 此疏忽可能导致无限循环或扫描不需要的表页面。", "title": "修复当表接近 232 页时 BRIN 索引扫描中的整数溢出风险", "commits": ["c4f5a59ab"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "b54a25879d2bfe54a1e59841cfd29195e3f3de3e777db4b43bde86186938402f", "section_path": ["变更"], "commit_groups": [["715983a81", "810aaf7f2", "9fd29d7ff", "c28f8ca29", "c4f5a59ab", "eea24eb0a", "ef915bf93"]], "identity_text": "Fix integer-overflow hazard in BRIN index scans when the table contains close to 232 pages (Sunil S) This oversight could result in an infinite loop or scanning of unneeded table pages.", "commit_aliases": ["715983a81", "810aaf7f2", "9fd29d7ff", "c28f8ca29", "c4f5a59ab", "eea24eb0a", "ef915bf93"], "source_commits": ["c4f5a59ab"], "source_entry_id": "17.7/changes/013", "db_id": "3eee9fbd93044d08fe7b761285b4eef0", "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f", "relations": [{"rule": 2, "type": "equivalent", "target": "393a9b7eb2a54302a3bd8b2790808ca8", "evidence": {"same_day": true, "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f"}}, {"rule": 2, "type": "equivalent", "target": "41c5c1173ef259c7bb96b3467e9de919", "evidence": {"same_day": true, "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f"}}, {"rule": 2, "type": "equivalent", "target": "c0b6100e40d8b770ece9bacc3084ea91", "evidence": {"same_day": true, "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f"}}, {"rule": 2, "type": "equivalent", "target": "ca0d04f29eca7d84d81b300dc4107221", "evidence": {"same_day": true, "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f"}}, {"rule": 2, "type": "equivalent", "target": "cbb0ef9e07e346b9959c4a482b828973", "evidence": {"same_day": true, "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "393a9b7eb2a54302a3bd8b2790808ca8", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "修复当表接近 232 页时 BRIN 索引扫描中的整数溢出风险", "evidence": {"same_day": true, "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f"}, "url": "/docs/compare/?release=18.1#18.1-4d75a8abffa08925", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "41c5c1173ef259c7bb96b3467e9de919", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复当表接近 232 页时 BRIN 索引扫描中的整数溢出风险", "evidence": {"same_day": true, "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f"}, "url": "/docs/compare/?release=16.11#16.11-f239d80cd401413a", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "ca0d04f29eca7d84d81b300dc4107221", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复当表接近 232 页时 BRIN 索引扫描中的整数溢出风险", "evidence": {"same_day": true, "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f"}, "url": "/docs/compare/?release=15.15#15.15-b0a9c7b1bda7fbc4", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "cbb0ef9e07e346b9959c4a482b828973", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "修复当表接近 232 页时 BRIN 索引扫描中的整数溢出风险", "evidence": {"same_day": true, "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f"}, "url": "/docs/compare/?release=14.20#14.20-fc1c1f6d56fc4b89", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "c0b6100e40d8b770ece9bacc3084ea91", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "修复当表接近 232 页时 BRIN 索引扫描中的整数溢出风险", "evidence": {"same_day": true, "patch_ids": ["e15f4df722672d015993ea819e9c3351"], "statement_hash": "45088b42382a6f8a5eb8dc651e95a4c956a04e585cd53f0e8247416c8d6fce3f"}, "url": "/docs/compare/?release=13.23#13.23-6eae1200294c5fb3", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-aa1a9b53c515db45", "cves": [], "html": "修复 JIT 生成的元组解构代码中存储值的错误零扩展问题（David Rowley）§
\n不使用 JIT 时，等效代码执行的是符号扩展而非零扩展，导致小整数数据类型的 Datum 表示不同。这种不一致在大多数情况下被掩盖了，但已知在使用 Memoize 计划节点时会导致 “could not find memoization table entry” 错误，还可能存在其他症状。
", "text": "修复 JIT 生成的元组解构代码中存储值的错误零扩展问题（David Rowley）§ 不使用 JIT 时，等效代码执行的是符号扩展而非零扩展，导致小整数数据类型的 Datum 表示不同。这种不一致在大多数情况下被掩盖了，但已知在使用 Memoize 计划节点时会导致 “could not find memoization table entry” 错误，还可能存在其他症状。", "title": "修复 JIT 生成的元组解构代码中存储值的错误零扩展问题", "commits": ["10945148e"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "d9af39700db3c555115403da25712b6c289704f16467a82c419fd9ea2f8869dc", "section_path": ["变更"], "commit_groups": [["10945148e", "3398b0d02", "4afab175b", "6911f8037", "b8ecfbe5a", "ceb51d09b", "e4316ec4d"]], "identity_text": "Fix incorrect zero-extension of stored values in JIT-generated tuple deforming code (David Rowley) When not using JIT, the equivalent code does sign-extension not zero-extension, leading to a different Datum representation of small integer data types. 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\n在分区的列集与其父分区表的列集在物理上不完全相同的情况下，此疏忽可能导致崩溃。
", "text": "修复触发器结果关系信息缓存的错误逻辑（David Rowley，Amit Langote）§ 在分区的列集与其父分区表的列集在物理上不完全相同的情况下，此疏忽可能导致崩溃。", "title": "修复触发器结果关系信息缓存的错误逻辑", "commits": ["0d3074615"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "434f1be6dcb7023c8f1a80d2eaeaaa12832fb5b4b57963e5ab985411237d105b", "section_path": ["变更"], "commit_groups": [["0d3074615", "2992b9a07", "39dcfda2d", "a2387c32f", "a546964db"]], "identity_text": "Fix incorrect logic for caching result-relation information for triggers (David Rowley, Amit Langote) In cases where partitions' column sets aren't physically identical to their parent partitioned tables' column sets, this oversight could lead to crashes.", "commit_aliases": ["0d3074615", "2992b9a07", "39dcfda2d", "a2387c32f", "a546964db"], "source_commits": ["0d3074615"], "source_entry_id": "17.7/changes/015", "db_id": "ba3b5897c3d85845178cb5eee8dfba01", "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef", "relations": [{"rule": 2, "type": "equivalent", "target": "13af7f30c1a66144a7c4729335ad6c55", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}}, {"rule": 2, "type": "equivalent", "target": "7ba23c07eaeb399e352fe32a704464e6", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}}, {"rule": 2, "type": "equivalent", "target": "bb7f7a3657690f7a6c75d641dcc65860", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "13af7f30c1a66144a7c4729335ad6c55", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "修复触发器结果关系信息缓存的错误逻辑", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}, "url": "/docs/compare/?release=18.1#18.1-fa17262588de7970", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "7ba23c07eaeb399e352fe32a704464e6", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复触发器结果关系信息缓存的错误逻辑", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}, "url": "/docs/compare/?release=16.11#16.11-b434454c9c408c94", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "bb7f7a3657690f7a6c75d641dcc65860", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复触发器结果关系信息缓存的错误逻辑", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}, "url": "/docs/compare/?release=15.15#15.15-c8e0a3ed2fb6c04a", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}]}, {"id": "17.7-a73aaf88aa7e95b3", "cves": [], "html": "为 TID Scan 和 TID Range Scan 计划节点添加缺失的 EvalPlanQual 重检查（Sophie Alpert，David Rowley）§ §
\n此遗漏导致在并发更新情况下可能不会重新检查 ctid 上的条件，使得更新的行为取决于选择了哪种计划类型。
修复没有准备替代本地连接计划用于 EPQ 的外部或自定义连接的 EvalPlanQual 处理（Masahiko Sawada，Etsuro Fujita）§
\n在这种情况下，应该正常调用外部或自定义访问方法，但之前并未发生，通常会导致崩溃。
", "text": "修复没有准备替代本地连接计划用于 EPQ 的外部或自定义连接的 EvalPlanQual 处理（Masahiko Sawada，Etsuro Fujita）§ 在这种情况下，应该正常调用外部或自定义访问方法，但之前并未发生，通常会导致崩溃。", "title": "修复没有准备替代本地连接计划用于 EPQ 的外部或自定义连接的 EvalPlanQual 处理", "commits": ["2bb84ea7e"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "c8cbd7f99c5661330597ac4d06a7f00640bfff02feb77b76238471eeeb3d912e", "section_path": ["变更"], "commit_groups": [["12609fbac", "12b0c0e51", "24e74b962", "2bb84ea7e", "4a08603a2", "5a9af4868", "b14144325"]], "identity_text": "Fix EvalPlanQual handling of foreign or custom joins that do not have an alternative local-join plan prepared for EPQ (Masahiko Sawada, Etsuro Fujita) In such cases the foreign or custom access method should be invoked normally, but that did not happen, typically leading to a crash.", "commit_aliases": ["12609fbac", "12b0c0e51", "24e74b962", "2bb84ea7e", "4a08603a2", "5a9af4868", "b14144325"], "source_commits": ["2bb84ea7e"], "source_entry_id": "17.7/changes/017", "db_id": "d5c74a3284403534934e2ff5e453332e", "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5", "relations": [{"rule": 2, "type": "equivalent", "target": "152497e1f56957947f79200f3011a52e", "evidence": {"same_day": true, "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5"}}, {"rule": 2, "type": "equivalent", "target": "3a7c71a715168a6fe003c04ad6530b01", "evidence": {"same_day": true, "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5"}}, {"rule": 2, "type": "equivalent", "target": "a830cee6374ea38a3cf10eb53388b93d", "evidence": {"same_day": true, "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5"}}, {"rule": 2, "type": "equivalent", "target": "b4c88efd3c63eeaee70001c500504502", "evidence": {"same_day": true, "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5"}}, {"rule": 2, "type": "equivalent", "target": "f8e7d0fe512da9f5e4221f5173c42a62", "evidence": {"same_day": true, "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "3a7c71a715168a6fe003c04ad6530b01", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "修复没有准备替代本地连接计划用于 EPQ 的外部或自定义连接的 EvalPlanQual 处理", "evidence": {"same_day": true, "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5"}, "url": "/docs/compare/?release=18.1#18.1-1ad36d259b8c4e29", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "a830cee6374ea38a3cf10eb53388b93d", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复没有准备替代本地连接计划用于 EPQ 的外部或自定义连接的 EvalPlanQual 处理", "evidence": {"same_day": true, "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5"}, "url": "/docs/compare/?release=16.11#16.11-071fb89b558772fa", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "f8e7d0fe512da9f5e4221f5173c42a62", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复没有准备替代本地连接计划用于 EPQ 的外部或自定义连接的 EvalPlanQual 处理", "evidence": {"same_day": true, "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5"}, "url": "/docs/compare/?release=15.15#15.15-93fef6ea11e7fc81", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "b4c88efd3c63eeaee70001c500504502", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "修复没有准备替代本地连接计划用于 EPQ 的外部或自定义连接的 EvalPlanQual 处理", "evidence": {"same_day": true, "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5"}, "url": "/docs/compare/?release=14.20#14.20-9d1b9820ad3ea33d", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "152497e1f56957947f79200f3011a52e", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "修复没有准备替代本地连接计划用于 EPQ 的外部或自定义连接的 EvalPlanQual 处理", "evidence": {"same_day": true, "patch_ids": ["4bc4b3eb3e3195a1d0e412e0c9371242"], "statement_hash": "7701ad14c992b95ece421f86b54788df6de9143a62d4e7ff9ea0b08caf2163f5"}, "url": "/docs/compare/?release=13.23#13.23-e3ce52e617ed9fef", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-7064942458440619", "cves": [], "html": "避免在 DETACH CONCURRENTLY 期间重复 hash 分区约束（Haiyang Li）§
ALTER TABLE DETACH PARTITION CONCURRENTLY 被编写为向现已分离的分区添加分区约束的副本。这是不恰当的，部分原因是非并发 DETACH 不会这样做，但主要原因是在 hash 分区的情况下，约束表达式包含对父表 OID 的引用。这在导出/恢复期间，或在 DETACH 之后父表被删除时会导致问题。在 v19 及更高版本中，我们将不再创建任何此类约束副本。在已发布的分支中，为了最大限度地降低不可预见后果的风险，仅在 hash 分区的情况下跳过添加复制约束。
禁止在分区键中使用生成列（Jian He，Ashutosh Bapat）§
\n这本来已经不被允许，但检查遗漏了一些情况，例如列引用隐含在整行引用中的情况。
", "text": "禁止在分区键中使用生成列（Jian He，Ashutosh Bapat）§ 这本来已经不被允许，但检查遗漏了一些情况，例如列引用隐含在整行引用中的情况。", "title": "禁止在分区键中使用生成列", "commits": ["0b44f2443"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "e32bf03e84838fbd3997d2e60a3ad086a2096a73c6f4e45c20d7535d9496c93b", "section_path": ["变更"], "commit_groups": [["040cc5f3c", "04345d7a4", "0b44f2443", "643a5e96c", "7180d56c5", "7f239c72a", "ba99c9491"]], "identity_text": "Disallow generated columns in partition keys (Jian He, Ashutosh Bapat) This was already not allowed, but the check missed some cases, such as where the column reference is implicit in a whole-row reference.", "commit_aliases": ["040cc5f3c", "04345d7a4", "0b44f2443", "643a5e96c", "7180d56c5", "7f239c72a", "ba99c9491"], "source_commits": ["0b44f2443"], "source_entry_id": "17.7/changes/019", "db_id": "8894dad53381cd45feb93c24e4fb14ba", "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f", "relations": [{"rule": 2, "type": "equivalent", "target": "300cd459ecbe8f82fbe0665d8d6b47c5", "evidence": {"same_day": true, "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f"}}, {"rule": 2, "type": "equivalent", "target": "525dd26c2bb1d8a0169ce29cab95adac", "evidence": {"same_day": true, "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f"}}, {"rule": 2, "type": "equivalent", "target": "605ca6399f9aae142eb2f308e3d598fd", "evidence": {"same_day": true, "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f"}}, {"rule": 2, "type": "equivalent", "target": "a8595e24703e1deff3ce7b6fe56d02db", "evidence": {"same_day": true, "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f"}}, {"rule": 2, "type": "equivalent", "target": "adb9f0cae7cdccc24195248ff3704b74", "evidence": {"same_day": true, "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "a8595e24703e1deff3ce7b6fe56d02db", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "禁止在分区键中使用生成列", "evidence": {"same_day": true, "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f"}, "url": "/docs/compare/?release=18.1#18.1-6edf5c69ea4392a4", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "300cd459ecbe8f82fbe0665d8d6b47c5", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "禁止在分区键中使用生成列", "evidence": {"same_day": true, "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f"}, "url": "/docs/compare/?release=16.11#16.11-2c9382bd25ce0f59", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "605ca6399f9aae142eb2f308e3d598fd", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "禁止在分区键中使用生成列", "evidence": {"same_day": true, "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f"}, "url": "/docs/compare/?release=15.15#15.15-7ad9c63c8b6e6da5", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "adb9f0cae7cdccc24195248ff3704b74", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "禁止在分区键中使用生成列", "evidence": {"same_day": true, "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f"}, "url": "/docs/compare/?release=14.20#14.20-e39243838bbc984a", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "525dd26c2bb1d8a0169ce29cab95adac", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "禁止在分区键中使用生成列", "evidence": {"same_day": true, "patch_ids": ["26b7dee3d5b5a82dd804a2b2e1ecd780"], "statement_hash": "5dded4849247ab37d7f44a8fd133cdab652ee07cbfab3751bd8d4ffcbdd7e99f"}, "url": "/docs/compare/?release=13.23#13.23-9b4ab32d62f672a8", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-0707cf226664ba13", "cves": [], "html": "禁止在 COPY ... FROM ... WHERE 子句中使用生成列（Peter Eisentraut，Jian He）§
以前，尝试引用此类列会导致不正确的行为或晦涩的错误消息，因为在执行 WHERE 过滤时生成列尚未计算。
避免并行清理中潜在的释放后使用问题（Kevin Oommen Anish）§
\n该缺陷在标准构建中似乎没有实际后果，但理论上仍存在风险。
", "text": "避免并行清理中潜在的释放后使用问题（Kevin Oommen Anish）§ 该缺陷在标准构建中似乎没有实际后果，但理论上仍存在风险。", "title": "避免并行清理中潜在的释放后使用问题", "commits": ["3549ffb6a"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "45105ed687e8b3e8dad9bd2453f6f46a9b3d44b4151d536bf7c2a2a384f996ac", "section_path": ["变更"], "commit_groups": [["3549ffb6a", "54ab74865", "76613b539"]], "identity_text": "Avoid potential use-after-free in parallel vacuum (Kevin Oommen Anish) This bug seems to have no consequences in standard builds, but it's theoretically a hazard.", "commit_aliases": ["3549ffb6a", "54ab74865", "76613b539"], "source_commits": ["3549ffb6a"], "source_entry_id": "17.7/changes/021", "db_id": "f0dbb32056abe3b3dfdd78472b7f273b", "patch_ids": ["d0dc5f67240a1a53daeb03d7af4ee34b"], "statement_hash": "e224742c5033ba7b9e4b42ddebc1f168038cd08a476019b13fb8d75e3b5bc706", "relations": [{"rule": 2, "type": "equivalent", "target": "65b586522e7240dd1f867d7850ea61db", "evidence": {"same_day": true, "patch_ids": ["d0dc5f67240a1a53daeb03d7af4ee34b"], "statement_hash": "e224742c5033ba7b9e4b42ddebc1f168038cd08a476019b13fb8d75e3b5bc706"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "65b586522e7240dd1f867d7850ea61db", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "避免并行清理中潜在的释放后使用问题", "evidence": {"same_day": true, "patch_ids": ["d0dc5f67240a1a53daeb03d7af4ee34b"], "statement_hash": "e224742c5033ba7b9e4b42ddebc1f168038cd08a476019b13fb8d75e3b5bc706"}, "url": "/docs/compare/?release=18.1#18.1-546fe16e34bc5978", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}]}, {"id": "17.7-542a921308709f1a", "cves": [], "html": "修复 pg_temp 中统计对象的可见性检查（Noah Misch）§
位于临时模式中的统计对象如果不加模式限定就无法命名，但 pg_statistics_obj_is_visible() 遗漏了这一点，可能无论如何都返回 “true”。反过来，像 pg_describe_object() 这样的函数可能无法按预期对对象名称进行模式限定。
修复 pg_event_trigger_dropped_objects() 对临时状态的报告（Antoine Violin，Tom Lane）§ §
如果被删除的列默认值、触发器或 RLS 策略属于临时表，则应以 is_temporary 为 true 来报告它。
修复 hash 子计划中的内存泄漏（Haiyang Li）§
\n用于对元组进行 hash 运算的 hash 函数所消耗的任何内存都构成了查询生命周期的内存泄漏。这种情况的一种发生方式是参与 hash 运算的值需要 de-toast。
", "text": "修复 hash 子计划中的内存泄漏（Haiyang Li）§ 用于对元组进行 hash 运算的 hash 函数所消耗的任何内存都构成了查询生命周期的内存泄漏。这种情况的一种发生方式是参与 hash 运算的值需要 de-toast。", "title": "修复 hash 子计划中的内存泄漏", "commits": ["862980f92"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "29ca0caba03f875660c50ef8265e317223993e263f269ad6dbdb165668265742", "section_path": ["变更"], "commit_groups": [["5ac973892", "5eab9b0a4", "862980f92", "8b6c29afd", "abdeacdb0", "bc865ff6d", "e1da9c072"]], "identity_text": "Fix memory leakage in hashed subplans (Haiyang Li) Any memory consumed by the hash functions used for hashing tuples constituted a query-lifespan memory leak. One way that could happen is if the values being hashed require de-toasting.", "commit_aliases": ["5ac973892", "5eab9b0a4", "862980f92", "8b6c29afd", "abdeacdb0", "bc865ff6d", "e1da9c072"], "source_commits": ["862980f92"], "source_entry_id": "17.7/changes/024", "db_id": "a023f6ed4b374eb0dc96609493ee88eb", "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96", "relations": [{"rule": 2, "type": "equivalent", "target": "66d28945048365b27caabd86520573af", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}}, {"rule": 2, "type": "equivalent", "target": "716c8f69dbded655fabcf097344a2b29", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}}, {"rule": 2, "type": "equivalent", "target": "caf35b0c52d2f2d7be09e47941e76dee", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}}, {"rule": 2, "type": "equivalent", "target": "f0d430aa11163b42d6790f75f65289ab", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "716c8f69dbded655fabcf097344a2b29", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复 hash 子计划中的内存泄漏", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}, "url": "/docs/compare/?release=16.11#16.11-690bb3133c148d74", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "f0d430aa11163b42d6790f75f65289ab", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复 hash 子计划中的内存泄漏", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}, "url": "/docs/compare/?release=15.15#15.15-7f29140debd89f20", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "caf35b0c52d2f2d7be09e47941e76dee", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "修复 hash 子计划中的内存泄漏", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}, "url": "/docs/compare/?release=14.20#14.20-33e44d7312fadeff", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "66d28945048365b27caabd86520573af", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "修复 hash 子计划中的内存泄漏", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}, "url": "/docs/compare/?release=13.23#13.23-7cc556201553018b", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-671418da8f4d2334", "cves": [], "html": "避免启动进程中的 SMgrRelation 对象泄漏（Jingtang Zhang）§
在长时间运行的备库服务器上，保存这些对象的 hash 表可能会显著膨胀，因为原先没有释放不再需要条目的机制。
", "text": "避免启动进程中的 SMgrRelation 对象泄漏（Jingtang Zhang）§ 在长时间运行的备库服务器上，保存这些对象的 hash 表可能会显著膨胀，因为原先没有释放不再需要条目的机制。", "title": "避免启动进程中的 SMgrRelation 对象泄漏", "commits": ["e2dd7b2ac"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "6a5918486c429e665b86376f75c1772476ac65544cb99f01f52dbeb73b2ee7ae", "section_path": ["变更"], "commit_groups": [["039301b3f", "8c8f7b199", "e2dd7b2ac"]], "identity_text": "Avoid leaking SMgrRelation objects in the startup process (Jingtang Zhang) In a long-running standby server, the hashtable holding these objects could bloat substantially, because there was no mechanism for freeing no-longer-interesting entries.", "commit_aliases": ["039301b3f", "8c8f7b199", "e2dd7b2ac"], "source_commits": ["e2dd7b2ac"], "source_entry_id": "17.7/changes/025", "db_id": "3c1f4e955642c64f429a9b621cc136e5", "patch_ids": ["84766f07596bed78aeca6f2f264b602b"], "statement_hash": "3a466d3b7a206eb98a2dce7ae05d285f72437df3880585c87c9e30852d8701b4", "relations": [], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.7-200457c819df1105", "cves": [], "html": "修复 WAL 重放数据库创建过程中的轻微内存泄漏（Nathan Bossart）§
", "text": "修复 WAL 重放数据库创建过程中的轻微内存泄漏（Nathan Bossart）§", "title": "修复 WAL 重放数据库创建过程中的轻微内存泄漏", "commits": ["f9993ac64"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "ab204cb467dcbb6750eb661459036663a1285eb4ae107a9ba77421895f8032c9", "section_path": ["变更"], "commit_groups": [["23b316c36", "33e7b4a7c", "c72b5c536", "f9993ac64", "ff47f9c16"]], "identity_text": "Fix minor memory leak during WAL replay of database creation (Nathan Bossart)", "commit_aliases": ["23b316c36", "33e7b4a7c", "c72b5c536", "f9993ac64", "ff47f9c16"], "source_commits": ["f9993ac64"], "source_entry_id": "17.7/changes/026", "db_id": "4be639cfbce3dac014c7f3139f4beaa7", "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c", "relations": [{"rule": 2, "type": "equivalent", "target": "07b0f2ed9748f2ad84f75138a8f693ab", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}}, {"rule": 2, "type": "equivalent", "target": "0e7b5976bd913c25991a5ff549ac5f81", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}}, {"rule": 2, "type": "equivalent", "target": "52d97c7cf8fbcce26fef4b0c910e4bf6", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "0e7b5976bd913c25991a5ff549ac5f81", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "修复 WAL 重放数据库创建过程中的轻微内存泄漏", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}, "url": "/docs/compare/?release=18.1#18.1-c10f4000798b8d9f", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "07b0f2ed9748f2ad84f75138a8f693ab", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复 WAL 重放数据库创建过程中的轻微内存泄漏", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}, "url": "/docs/compare/?release=16.11#16.11-2e0c5a7298bb48a1", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "52d97c7cf8fbcce26fef4b0c910e4bf6", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复 WAL 重放数据库创建过程中的轻微内存泄漏", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}, "url": "/docs/compare/?release=15.15#15.15-e3961aff6d69ca4a", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}]}, {"id": "17.7-f24d4db0884e5b15", "cves": [], "html": "修复内存不足失败后共享统计信息表损坏的问题（Mikhail Kot）§
\n之前，在创建新的 hash 表条目过程中发生内存不足失败会留下一个损坏的条目，可能在稍后导致其他会话出错。
", "text": "修复内存不足失败后共享统计信息表损坏的问题（Mikhail Kot）§ 之前，在创建新的 hash 表条目过程中发生内存不足失败会留下一个损坏的条目，可能在稍后导致其他会话出错。", "title": "修复内存不足失败后共享统计信息表损坏的问题", "commits": ["3e6dfcfb0"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "302b023cab6c865dde2afabba544a3acde981cc65121ab96834532af434e8fcb", "section_path": ["变更"], "commit_groups": [["12f57681c", "1852ec5db", "3e6dfcfb0", "8191e0c16", "f256a7bba"]], "identity_text": "Fix corruption of the shared statistics table after out-of-memory failures (Mikhail Kot) Previously, an out-of-memory failure partway through creating a new hash table entry left a broken entry behind, potentially causing errors in other sessions later.", "commit_aliases": ["12f57681c", "1852ec5db", "3e6dfcfb0", "8191e0c16", "f256a7bba"], "source_commits": ["3e6dfcfb0"], "source_entry_id": "17.7/changes/027", "db_id": "e04d248137ebff8b4925101d2d580e2f", "patch_ids": ["26897e0ef72dc7a9b009d5b34ec5d2ea"], "statement_hash": "af500ba26ad0df8abfaed0a4561558ddde2bb07d3bed0254add64eb0fa812315", "relations": [{"rule": 2, "type": "equivalent", "target": "e3be8eb6c685942d1ed8b0a46aef228d", "evidence": {"same_day": true, "patch_ids": ["26897e0ef72dc7a9b009d5b34ec5d2ea"], "statement_hash": "af500ba26ad0df8abfaed0a4561558ddde2bb07d3bed0254add64eb0fa812315"}}, {"rule": 2, "type": "equivalent", "target": "f23e41805c101675a10149bbc9f843a2", "evidence": {"same_day": true, "patch_ids": ["26897e0ef72dc7a9b009d5b34ec5d2ea"], "statement_hash": "af500ba26ad0df8abfaed0a4561558ddde2bb07d3bed0254add64eb0fa812315"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "f23e41805c101675a10149bbc9f843a2", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复内存不足失败后共享统计信息表损坏的问题", "evidence": {"same_day": true, "patch_ids": ["26897e0ef72dc7a9b009d5b34ec5d2ea"], "statement_hash": "af500ba26ad0df8abfaed0a4561558ddde2bb07d3bed0254add64eb0fa812315"}, "url": "/docs/compare/?release=16.11#16.11-2c62d646d59219fb", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "e3be8eb6c685942d1ed8b0a46aef228d", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复内存不足失败后共享统计信息表损坏的问题", "evidence": {"same_day": true, "patch_ids": ["26897e0ef72dc7a9b009d5b34ec5d2ea"], "statement_hash": "af500ba26ad0df8abfaed0a4561558ddde2bb07d3bed0254add64eb0fa812315"}, "url": "/docs/compare/?release=15.15#15.15-092c3fabcf87a792", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}]}, {"id": "17.7-7c11e4f2561b50d2", "cves": [], "html": "修复 MERGE 中的并发更新问题（Yugo Nagata）§
当执行 MERGE UPDATE 操作时，如果目标行有多个并发更新，加锁重试代码有时会错误地识别目标元组的最新版本，导致不正确的结果。
为 MERGE 和 INSERT ... ON CONFLICT DO UPDATE 添加缺失的副本标识检查（Zhijie Hou）§ § §
如果 MERGE 可能需要执行更新或删除操作，且目标表发布更新或删除，则要求该表定义了 REPLICA IDENTITY。未能要求这一点可能会静默地破坏复制。同样，带有 UPDATE 选项的 INSERT 如果目标表发布插入或更新，也必须要求 REPLICA IDENTITY。
避免当发布者与订阅者在同一服务器上时，DROP SUBSCRIPTION 期间的死锁（Dilip Kumar）§
修复 pg_stat_replication 视图中复制延迟的错误报告（Fujii Masao）§
如果任何备库的重放 LSN 停止前进，write_lag 和 flush_lag 列最终将停止更新。
避免关于无效 primary_slot_name 设置的重复日志消息（Fujii Masao）§
当 synchronized_standby_slots 引用了不存在的复制槽时，避免发生故障（Shlok Kyal）§
在写入复制槽状态到磁盘失败后删除未完成的槽状态文件（Michael Paquier）§
\n以前，磁盘空间不足等失败会留下一个临时 state.tmp 文件。这是有问题的，因为它会阻止所有后续写入状态的尝试，需要手动干预来清理。
修复逻辑复制并行应用工作进程中锁超时信号的错误处理（Hayato Kuroda）§
\n同一个信号编号被同时用于工作进程关闭和锁超时，导致混淆。
", "text": "修复逻辑复制并行应用工作进程中锁超时信号的错误处理（Hayato Kuroda）§ 同一个信号编号被同时用于工作进程关闭和锁超时，导致混淆。", "title": "修复逻辑复制并行应用工作进程中锁超时信号的错误处理", "commits": ["2f6e1a490"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "376f30458fda39b01a6414ff90c416f5dd6967174f09ce0f44892f2f4326c5d7", "section_path": ["变更"], "commit_groups": [["2f6e1a490", "37fc5de43", "a54c7a113", "e41d954da"]], "identity_text": "Fix mishandling of lock timeout signals in parallel apply workers for logical replication (Hayato Kuroda) The same signal number was being used for both worker shutdown and lock timeout, leading to confusion.", "commit_aliases": ["2f6e1a490", "37fc5de43", "a54c7a113", "e41d954da"], "source_commits": ["2f6e1a490"], "source_entry_id": "17.7/changes/035", "db_id": "50ee30b81e767311733d723cd36948c0", "patch_ids": ["b3db903786744763190489d6bf47d765"], "statement_hash": "eeca05449e3cc33c400da91c2fe568d3d74ef1488cd64e05a219a1d4578a1575", "relations": [{"rule": 2, "type": "equivalent", "target": "943decff2b98c926290fdf650e4a0edc", "evidence": {"same_day": true, "patch_ids": ["b3db903786744763190489d6bf47d765"], "statement_hash": "eeca05449e3cc33c400da91c2fe568d3d74ef1488cd64e05a219a1d4578a1575"}}, {"rule": 2, "type": "equivalent", "target": "b1d5f444628e0aea3eb678b0a2d29dfa", "evidence": {"same_day": true, "patch_ids": ["b3db903786744763190489d6bf47d765"], "statement_hash": "eeca05449e3cc33c400da91c2fe568d3d74ef1488cd64e05a219a1d4578a1575"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "943decff2b98c926290fdf650e4a0edc", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "修复逻辑复制并行应用工作进程中锁超时信号的错误处理", "evidence": {"same_day": true, "patch_ids": ["b3db903786744763190489d6bf47d765"], "statement_hash": "eeca05449e3cc33c400da91c2fe568d3d74ef1488cd64e05a219a1d4578a1575"}, "url": "/docs/compare/?release=18.1#18.1-b4b351d19dc05865", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "b1d5f444628e0aea3eb678b0a2d29dfa", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复逻辑复制并行应用工作进程中锁超时信号的错误处理", "evidence": {"same_day": true, "patch_ids": ["b3db903786744763190489d6bf47d765"], "statement_hash": "eeca05449e3cc33c400da91c2fe568d3d74ef1488cd64e05a219a1d4578a1575"}, "url": "/docs/compare/?release=16.11#16.11-acfdc23367087fb5", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}]}, {"id": "17.7-0a048ec34f6d4d74", "cves": [], "html": "避免从流式传输切换到归档 WAL 源时不必要的 WAL 接收进程关闭（Xuneng Zhou）§
\n在时间线切换期间，备库的 WAL 接收进程应保持活动状态，等待新的 WAL 流式传输起始点。相反，它反复关闭并立即重新启动，这可能会混淆状态监控代码。
", "text": "避免从流式传输切换到归档 WAL 源时不必要的 WAL 接收进程关闭（Xuneng Zhou）§ 在时间线切换期间，备库的 WAL 接收进程应保持活动状态，等待新的 WAL 流式传输起始点。相反，它反复关闭并立即重新启动，这可能会混淆状态监控代码。", "title": "避免从流式传输切换到归档 WAL 源时不必要的 WAL 接收进程关闭", "commits": ["e7340b484"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "c472a1a3f67e2bd4a5b75db0e964e2588a970cec863e65ad1cd3f0b26af07c3d", "section_path": ["变更"], "commit_groups": [["17b2d5ec7", "25b484080", "9b6109607", "a14201073", "a1b8b3b2e", "da5ea6c70", "e7340b484"]], "identity_text": "Avoid unwanted WAL receiver shutdown when switching from streaming to archive WAL source (Xuneng Zhou) During a timeline change, a standby server's WAL receiver should remain alive, waiting for a new WAL streaming start point. Instead it was repeatedly shutting down and immediately getting restarted, which could confuse status monitoring code.", "commit_aliases": ["17b2d5ec7", "25b484080", "9b6109607", "a14201073", "a1b8b3b2e", "da5ea6c70", "e7340b484"], "source_commits": ["e7340b484"], "source_entry_id": "17.7/changes/036", "db_id": "b76ca1acc7d0e06651b84c05d5298bb5", "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74", "relations": [{"rule": 2, "type": "equivalent", "target": "186f1aca8e166170a7cedbb47670ed32", "evidence": {"same_day": true, "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74"}}, {"rule": 2, "type": "equivalent", "target": "5e6622b056fdeebae1797bcd6bab73d8", "evidence": {"same_day": true, "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74"}}, {"rule": 2, "type": "equivalent", "target": "74dc0b8668a34ee86a69e81b07977ac3", "evidence": {"same_day": true, "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74"}}, {"rule": 2, "type": "equivalent", "target": "7e82176acdf9327aca4da62b00d1400a", "evidence": {"same_day": true, "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74"}}, {"rule": 2, "type": "equivalent", "target": "c392b0b8a9a1720a5f28a1d62993d15b", "evidence": {"same_day": true, "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "5e6622b056fdeebae1797bcd6bab73d8", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "避免从流式传输切换到归档 WAL 源时不必要的 WAL 接收进程关闭", "evidence": {"same_day": true, "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74"}, "url": "/docs/compare/?release=18.1#18.1-a20d69b97abaf6de", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "74dc0b8668a34ee86a69e81b07977ac3", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "避免从流式传输切换到归档 WAL 源时不必要的 WAL 接收进程关闭", "evidence": {"same_day": true, "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74"}, "url": "/docs/compare/?release=16.11#16.11-5e20452104432165", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "186f1aca8e166170a7cedbb47670ed32", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "避免从流式传输切换到归档 WAL 源时不必要的 WAL 接收进程关闭", "evidence": {"same_day": true, "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74"}, "url": "/docs/compare/?release=15.15#15.15-96abfce14575540c", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "c392b0b8a9a1720a5f28a1d62993d15b", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "避免从流式传输切换到归档 WAL 源时不必要的 WAL 接收进程关闭", "evidence": {"same_day": true, "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74"}, "url": "/docs/compare/?release=14.20#14.20-c26203a903d008e3", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "7e82176acdf9327aca4da62b00d1400a", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "避免从流式传输切换到归档 WAL 源时不必要的 WAL 接收进程关闭", "evidence": {"same_day": true, "patch_ids": ["c329a1ce9ca7c1f3b46341c92f972ea9"], "statement_hash": "94e86829e542dbec362b5314cb0d0420170b66f94aea79d642bd1905c93f5d74"}, "url": "/docs/compare/?release=13.23#13.23-4af8775ea855af94", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-34081f9b2520d7c3", "cves": [], "html": "避免由于常规表和临时表之间文件编号偶然冲突导致的逻辑复制失败（Vignesh C）§
\n这一低概率问题表现为像 “unexpected duplicate for tablespace X, relfilenode Y” 这样的瞬态错误。contrib/autoprewarm 也受到影响。此修复的一个副作用是 SQL 函数 pg_filenode_relation() 现在将忽略临时表。
修复 pgoutput 逻辑解码插件维护的关系同步缓存中的释放后使用问题（Vignesh C，Masahiko Sawada）§
\n逻辑解码期间的错误可能导致同一会话中后续逻辑解码尝试崩溃。此情况仅在通过 SQL 函数调用 pgoutput 时可以触发。
", "text": "修复 pgoutput 逻辑解码插件维护的关系同步缓存中的释放后使用问题（Vignesh C，Masahiko Sawada）§ 逻辑解码期间的错误可能导致同一会话中后续逻辑解码尝试崩溃。此情况仅在通过 SQL 函数调用 pgoutput 时可以触发。", "title": "修复 pgoutput 逻辑解码插件维护的关系同步缓存中的释放后使用问题", "commits": ["a61592253"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "1989bcc22bdfab2ed62ba9a8ff42a61204f0470e72dcad70393749e8d17b02c7", "section_path": ["变更"], "commit_groups": [["32b95fc71", "a61592253", "b07682bce", "b46efe904", "c40761759"]], "identity_text": "Fix use-after-free issue in the relation synchronization cache maintained by the pgoutput logical decoding plugin (Vignesh C, Masahiko Sawada) An error during logical decoding could result in crashes in subsequent logical decoding attempts in the same session. The case is only reachable when pgoutput is invoked via SQL functions.", "commit_aliases": ["32b95fc71", "a61592253", "b07682bce", "b46efe904", "c40761759"], "source_commits": ["a61592253"], "source_entry_id": "17.7/changes/038", "db_id": "b5c5a46598eb51eef76d3c62dc981396", "patch_ids": ["f0d90b350350451bd966913a51e4879b"], "statement_hash": "a5100d60852834442dddf7c470eb3398c76e0d2de98829a3277bf107f97642fc", "relations": [{"rule": 2, "type": "equivalent", "target": "01678f172fb01945bdf37dee98659abb", "evidence": {"same_day": true, "patch_ids": ["f0d90b350350451bd966913a51e4879b"], "statement_hash": "a5100d60852834442dddf7c470eb3398c76e0d2de98829a3277bf107f97642fc"}}, {"rule": 2, "type": "equivalent", "target": "88eeed6b80c39786442df0b17dadee4a", "evidence": {"same_day": true, "patch_ids": ["f0d90b350350451bd966913a51e4879b"], "statement_hash": "a5100d60852834442dddf7c470eb3398c76e0d2de98829a3277bf107f97642fc"}}, {"rule": 2, "type": "equivalent", "target": "bd8536eb35145d43f731406b08299135", "evidence": {"same_day": true, "patch_ids": ["f0d90b350350451bd966913a51e4879b"], "statement_hash": "a5100d60852834442dddf7c470eb3398c76e0d2de98829a3277bf107f97642fc"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "01678f172fb01945bdf37dee98659abb", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "修复 pgoutput 逻辑解码插件维护的关系同步缓存中的释放后使用问题", "evidence": {"same_day": true, "patch_ids": ["f0d90b350350451bd966913a51e4879b"], "statement_hash": "a5100d60852834442dddf7c470eb3398c76e0d2de98829a3277bf107f97642fc"}, "url": "/docs/compare/?release=18.1#18.1-5ac1192568f3b470", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "bd8536eb35145d43f731406b08299135", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复 pgoutput 逻辑解码插件维护的关系同步缓存中的释放后使用问题", "evidence": {"same_day": true, "patch_ids": ["f0d90b350350451bd966913a51e4879b"], "statement_hash": "a5100d60852834442dddf7c470eb3398c76e0d2de98829a3277bf107f97642fc"}, "url": "/docs/compare/?release=16.11#16.11-83edf36bdfedb497", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "88eeed6b80c39786442df0b17dadee4a", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复 pgoutput 逻辑解码插件维护的关系同步缓存中的释放后使用问题", "evidence": {"same_day": true, "patch_ids": ["f0d90b350350451bd966913a51e4879b"], "statement_hash": "a5100d60852834442dddf7c470eb3398c76e0d2de98829a3277bf107f97642fc"}, "url": "/docs/compare/?release=15.15#15.15-8b79db713221db62", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}]}, {"id": "17.7-7503f801e6751f4a", "cves": [], "html": "避免不必要地失效逻辑复制槽（Bertrand Drouvot）§
", "text": "避免不必要地失效逻辑复制槽（Bertrand Drouvot）§", "title": "避免不必要地失效逻辑复制槽", "commits": ["f3fb6bc9f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "71f9d96e7924b478f6512b71b919b46a0af70b3b85a62fe1311f6957db19d795", "section_path": ["变更"], "commit_groups": [["bf3dba508", "d43209468", "e3714dc05", "f3fb6bc9f"]], "identity_text": "Avoid unnecessary invalidation of logical replication slots (Bertrand Drouvot)", "commit_aliases": ["bf3dba508", "d43209468", "e3714dc05", "f3fb6bc9f"], "source_commits": ["f3fb6bc9f"], "source_entry_id": "17.7/changes/039", "db_id": "d82a9dd65733472f8ceb24aa092ce2c1", "patch_ids": ["6ea9f1034627e064a66a9993eefe3326"], "statement_hash": "2258d0e5693992de151b50019fd28e9463cd70463c082a7437cf067dd3c0016c", "relations": [{"rule": 2, "type": "equivalent", "target": "cb9ea43000f5f0564c0ad169585ea59f", "evidence": {"same_day": true, "patch_ids": ["6ea9f1034627e064a66a9993eefe3326"], "statement_hash": "2258d0e5693992de151b50019fd28e9463cd70463c082a7437cf067dd3c0016c"}}, {"rule": 2, "type": "equivalent", "target": "dbc091f15023788511302d163d035b51", "evidence": {"same_day": true, "patch_ids": ["6ea9f1034627e064a66a9993eefe3326"], "statement_hash": "2258d0e5693992de151b50019fd28e9463cd70463c082a7437cf067dd3c0016c"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "dbc091f15023788511302d163d035b51", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "避免不必要地失效逻辑复制槽", "evidence": {"same_day": true, "patch_ids": ["6ea9f1034627e064a66a9993eefe3326"], "statement_hash": "2258d0e5693992de151b50019fd28e9463cd70463c082a7437cf067dd3c0016c"}, "url": "/docs/compare/?release=18.1#18.1-11b960ad24efa0be", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "cb9ea43000f5f0564c0ad169585ea59f", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "避免不必要地失效逻辑复制槽", "evidence": {"same_day": true, "patch_ids": ["6ea9f1034627e064a66a9993eefe3326"], "statement_hash": "2258d0e5693992de151b50019fd28e9463cd70463c082a7437cf067dd3c0016c"}, "url": "/docs/compare/?release=16.11#16.11-1bcfcc46772ad747", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}]}, {"id": "17.7-caf55981ca48e8d9", "cves": [], "html": "避免在单用户模式下尝试释放复制槽时出现断言失败（Hayato Kuroda）§
", "text": "避免在单用户模式下尝试释放复制槽时出现断言失败（Hayato Kuroda）§", "title": "避免在单用户模式下尝试释放复制槽时出现断言失败", "commits": ["07a302387"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "bcf7e78c04712c155724dfc5acb87c249f4e6365cdde38a3a461491d141d777d", "section_path": ["变更"], "commit_groups": [["07a302387", "1f2e51e3c", "32d388d00", "818be9b73", "8ed079cad", "ea1c6b0b0", "fea1cc3f7"]], "identity_text": "Avoid assertion failure when trying to release a replication slot in single-user mode (Hayato Kuroda)", "commit_aliases": ["07a302387", "1f2e51e3c", "32d388d00", "818be9b73", "8ed079cad", "ea1c6b0b0", "fea1cc3f7"], "source_commits": ["07a302387"], "source_entry_id": "17.7/changes/040", "db_id": "dfa8bf1ea824bfb259ce58d54f3974b9", "patch_ids": ["7b2185203259c603e6d78f085a1045bc"], "statement_hash": "2468355887b9e010462f5614f48ed7eadb6c466164c77ab2abf9d3bf8b96b808", "relations": [{"rule": 2, "type": "equivalent", "target": "30a06a2280e72a1b60773e025f859760", "evidence": {"same_day": true, "patch_ids": ["7b2185203259c603e6d78f085a1045bc"], "statement_hash": "2468355887b9e010462f5614f48ed7eadb6c466164c77ab2abf9d3bf8b96b808"}}, {"rule": 2, "type": "equivalent", "target": "7501877a970413767bfe48037312b451", "evidence": {"same_day": true, "patch_ids": ["7b2185203259c603e6d78f085a1045bc"], "statement_hash": "2468355887b9e010462f5614f48ed7eadb6c466164c77ab2abf9d3bf8b96b808"}}, {"rule": 2, "type": "equivalent", "target": "cc9955f9e8237d7746a550f90028d0a7", "evidence": {"same_day": true, "patch_ids": ["7b2185203259c603e6d78f085a1045bc"], "statement_hash": "2468355887b9e010462f5614f48ed7eadb6c466164c77ab2abf9d3bf8b96b808"}}, {"rule": 2, "type": "equivalent", "target": "d34086d1fe427aeb87fe1279cbb0e3aa", "evidence": {"same_day": true, "patch_ids": ["7b2185203259c603e6d78f085a1045bc"], "statement_hash": "2468355887b9e010462f5614f48ed7eadb6c466164c77ab2abf9d3bf8b96b808"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "cc9955f9e8237d7746a550f90028d0a7", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "避免在单用户模式下尝试释放复制槽时出现断言失败", "evidence": {"same_day": true, "patch_ids": ["7b2185203259c603e6d78f085a1045bc"], "statement_hash": "2468355887b9e010462f5614f48ed7eadb6c466164c77ab2abf9d3bf8b96b808"}, "url": "/docs/compare/?release=16.11#16.11-05187515625d4370", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "30a06a2280e72a1b60773e025f859760", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "避免在单用户模式下尝试释放复制槽时出现断言失败", "evidence": {"same_day": true, "patch_ids": ["7b2185203259c603e6d78f085a1045bc"], "statement_hash": "2468355887b9e010462f5614f48ed7eadb6c466164c77ab2abf9d3bf8b96b808"}, "url": "/docs/compare/?release=15.15#15.15-e163943680bf0745", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "d34086d1fe427aeb87fe1279cbb0e3aa", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "避免在单用户模式下尝试释放复制槽时出现断言失败", "evidence": {"same_day": true, "patch_ids": ["7b2185203259c603e6d78f085a1045bc"], "statement_hash": "2468355887b9e010462f5614f48ed7eadb6c466164c77ab2abf9d3bf8b96b808"}, "url": "/docs/compare/?release=14.20#14.20-9705fe16844c36d5", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "7501877a970413767bfe48037312b451", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "避免在单用户模式下尝试释放复制槽时出现断言失败", "evidence": {"same_day": true, "patch_ids": ["7b2185203259c603e6d78f085a1045bc"], "statement_hash": "2468355887b9e010462f5614f48ed7eadb6c466164c77ab2abf9d3bf8b96b808"}, "url": "/docs/compare/?release=13.23#13.23-dfd343f1e3c46d29", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-6554bc7b77289e22", "cves": [], "html": "修复关于检查用户是否具有 Windows 管理员权限时失败消息的错误打印（Bryan Green）§
\n此代码本来会崩溃或至少打印乱码。但没有此类情况被报告过，这表明这些系统调用的失败极为罕见。
", "text": "修复关于检查用户是否具有 Windows 管理员权限时失败消息的错误打印（Bryan Green）§ 此代码本来会崩溃或至少打印乱码。但没有此类情况被报告过，这表明这些系统调用的失败极为罕见。", "title": "修复关于检查用户是否具有 Windows 管理员权限时失败消息的错误打印", "commits": ["4c53519e1"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "f45bbbbd146ab0926b0d1ec3380e88c7b29d5ce17989f446f1cdcd2a825cd663", "section_path": ["变更"], "commit_groups": [["03bf7a12c", "4c53519e1", "75a555d61", "9883e3cd1", "b48ae226e", "e91eb4ad6", "f91666c83"]], "identity_text": "Fix incorrect printing of messages about failures in checking whether the user has Windows administrator privilege (Bryan Green) This code would have crashed or at least printed garbage. No such cases have been reported though, indicating that failure of these system calls is extremely rare.", "commit_aliases": ["03bf7a12c", "4c53519e1", "75a555d61", "9883e3cd1", "b48ae226e", "e91eb4ad6", "f91666c83"], "source_commits": ["4c53519e1"], "source_entry_id": "17.7/changes/041", "db_id": "1bce0a6531645bd3f70523a4fd591cf3", "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef", "relations": [{"rule": 2, "type": "equivalent", "target": "27ca4eb718e79592fec76dc7fda731c1", "evidence": {"same_day": true, "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef"}}, {"rule": 2, "type": "equivalent", "target": "54e06bd3860e1bbda5ac887cf9128e18", "evidence": {"same_day": true, "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef"}}, {"rule": 2, "type": "equivalent", "target": "92380498a4385f5ba77ddf5e840497f2", "evidence": {"same_day": true, "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef"}}, {"rule": 2, "type": "equivalent", "target": "bf9e24f2b769f783785421c6c4666a0a", "evidence": {"same_day": true, "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef"}}, {"rule": 2, "type": "equivalent", "target": "fc910ae34d590e376c66274cf6b8087f", "evidence": {"same_day": true, "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "54e06bd3860e1bbda5ac887cf9128e18", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "修复关于检查用户是否具有 Windows 管理员权限时失败消息的错误打印", "evidence": {"same_day": true, "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef"}, "url": "/docs/compare/?release=18.1#18.1-0bab432ae295bddb", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "92380498a4385f5ba77ddf5e840497f2", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复关于检查用户是否具有 Windows 管理员权限时失败消息的错误打印", "evidence": {"same_day": true, "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef"}, "url": "/docs/compare/?release=16.11#16.11-713a970c4e1b104e", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "27ca4eb718e79592fec76dc7fda731c1", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复关于检查用户是否具有 Windows 管理员权限时失败消息的错误打印", "evidence": {"same_day": true, "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef"}, "url": "/docs/compare/?release=15.15#15.15-c16c9322537a1ada", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "fc910ae34d590e376c66274cf6b8087f", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "修复关于检查用户是否具有 Windows 管理员权限时失败消息的错误打印", "evidence": {"same_day": true, "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef"}, "url": "/docs/compare/?release=14.20#14.20-1da5f9c55441affe", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "bf9e24f2b769f783785421c6c4666a0a", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "修复关于检查用户是否具有 Windows 管理员权限时失败消息的错误打印", "evidence": {"same_day": true, "patch_ids": ["d55ac972fc177556ea4a0e974c012182"], "statement_hash": "eaba82bd3ddf1952b1b8d1f5d8eb79c610f601c3b23948c4873ea0e85ca0e1ef"}, "url": "/docs/compare/?release=13.23#13.23-f44c9122c79014ab", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-760eb90cba89a23d", "cves": [], "html": "避免在 macOS 和 BSD 平台上与预先存在的信号量集冲突时启动失败（Tom Lane）§
\n如果预先存在的信号量集的信号量数量少于我们请求的数量，这些平台返回 EINVAL 而不是我们代码所预期的 EEXIST，导致数据库启动失败。
", "text": "避免在 macOS 和 BSD 平台上与预先存在的信号量集冲突时启动失败（Tom Lane）§ 如果预先存在的信号量集的信号量数量少于我们请求的数量，这些平台返回 EINVAL 而不是我们代码所预期的 EEXIST，导致数据库启动失败。", "title": "避免在 macOS 和 BSD 平台上与预先存在的信号量集冲突时启动失败", "commits": ["ab92f0e7f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "14907b88498f0110b1b821c387d3f8616b2b837324c164c98d2d0e38cd5ec12f", "section_path": ["变更"], "commit_groups": [["21fddb3d7", "787cd2b7d", "ab92f0e7f", "b3d6e8b63", "e3b3fa863", "e67d5f7ba", "f4c088344"]], "identity_text": "Avoid startup failure on macOS and BSD platforms when there is a collision with a pre-existing semaphore set (Tom Lane) If the pre-existing set has fewer semaphores than we asked for, these platforms return EINVAL not EEXIST as our code expected, resulting in failure to start the database.", "commit_aliases": ["21fddb3d7", "787cd2b7d", "ab92f0e7f", "b3d6e8b63", "e3b3fa863", "e67d5f7ba", "f4c088344"], "source_commits": ["ab92f0e7f"], "source_entry_id": "17.7/changes/042", "db_id": "fb53ff81eba82caa82519fcf89ffe49b", "patch_ids": ["809cffd6cd01bbf1882821d21af69bda"], "statement_hash": "def4159b79d4b5b3884779b9edcbd6ddc22a9643377b01246dac52c614a47ac7", "relations": [{"rule": 2, "type": "equivalent", "target": "6a1e72e978f21321445f26d7eb52c623", "evidence": {"same_day": true, "patch_ids": ["809cffd6cd01bbf1882821d21af69bda"], "statement_hash": "def4159b79d4b5b3884779b9edcbd6ddc22a9643377b01246dac52c614a47ac7"}}, {"rule": 2, "type": "equivalent", "target": "d253254086f78eb0895ee9447ad2ad07", "evidence": {"same_day": true, "patch_ids": ["809cffd6cd01bbf1882821d21af69bda"], "statement_hash": "def4159b79d4b5b3884779b9edcbd6ddc22a9643377b01246dac52c614a47ac7"}}, {"rule": 2, "type": "equivalent", "target": "de586ed7dc58ace31efe89cde3a0c519", "evidence": {"same_day": true, "patch_ids": ["809cffd6cd01bbf1882821d21af69bda"], "statement_hash": "def4159b79d4b5b3884779b9edcbd6ddc22a9643377b01246dac52c614a47ac7"}}, {"rule": 2, "type": "equivalent", "target": "eac1fcf2446013ff95c3a1c8688d80d5", "evidence": {"same_day": true, "patch_ids": ["809cffd6cd01bbf1882821d21af69bda"], "statement_hash": "def4159b79d4b5b3884779b9edcbd6ddc22a9643377b01246dac52c614a47ac7"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "de586ed7dc58ace31efe89cde3a0c519", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "避免在 macOS 和 BSD 平台上与预先存在的信号量集冲突时启动失败", "evidence": {"same_day": true, "patch_ids": ["809cffd6cd01bbf1882821d21af69bda"], "statement_hash": "def4159b79d4b5b3884779b9edcbd6ddc22a9643377b01246dac52c614a47ac7"}, "url": "/docs/compare/?release=16.11#16.11-1a63b5b954b27999", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "6a1e72e978f21321445f26d7eb52c623", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "避免在 macOS 和 BSD 平台上与预先存在的信号量集冲突时启动失败", "evidence": {"same_day": true, "patch_ids": ["809cffd6cd01bbf1882821d21af69bda"], "statement_hash": "def4159b79d4b5b3884779b9edcbd6ddc22a9643377b01246dac52c614a47ac7"}, "url": "/docs/compare/?release=15.15#15.15-d3131249798dfe83", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "eac1fcf2446013ff95c3a1c8688d80d5", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "避免在 macOS 和 BSD 平台上与预先存在的信号量集冲突时启动失败", "evidence": {"same_day": true, "patch_ids": ["809cffd6cd01bbf1882821d21af69bda"], "statement_hash": "def4159b79d4b5b3884779b9edcbd6ddc22a9643377b01246dac52c614a47ac7"}, "url": "/docs/compare/?release=14.20#14.20-ad8587c169ea5995", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "d253254086f78eb0895ee9447ad2ad07", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "避免在 macOS 和 BSD 平台上与预先存在的信号量集冲突时启动失败", "evidence": {"same_day": true, "patch_ids": ["809cffd6cd01bbf1882821d21af69bda"], "statement_hash": "def4159b79d4b5b3884779b9edcbd6ddc22a9643377b01246dac52c614a47ac7"}, "url": "/docs/compare/?release=13.23#13.23-3c67470c239fb563", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-9ade7eda82977791", "cves": [], "html": "避免在使用某些 libsanitizer 选项测试 PostgreSQL 时崩溃（Emmanuel Sibi，Jacob Champion）§
", "text": "避免在使用某些 libsanitizer 选项测试 PostgreSQL 时崩溃（Emmanuel Sibi，Jacob Champion）§", "title": "避免在使用某些 libsanitizer 选项测试 PostgreSQL 时崩溃", "commits": ["a9515f294"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "4a85014ff7704151052d4c42184630dadd24e6018a22b2c965909e962b9102c3", "section_path": ["变更"], "commit_groups": [["6d8acb777", "a9515f294", "c775bf048", "d4baa327a"]], "identity_text": "Avoid crash when attempting to test PostgreSQL with certain libsanitizer options (Emmanuel Sibi, Jacob Champion)", "commit_aliases": ["6d8acb777", "a9515f294", "c775bf048", "d4baa327a"], "source_commits": ["a9515f294"], "source_entry_id": "17.7/changes/043", "db_id": "3fe9f73cb5b5abb15f5187f203890f07", "patch_ids": ["0aa2e1766b342d485aa4d51817595af8"], "statement_hash": "8083d2803e957ae96e87e94e8d681a4e2bbd775e61d5de91ea925956e3a45ce9", "relations": [{"rule": 2, "type": "equivalent", "target": "1a27f92e7f186016d17a28e80fd6ba2a", "evidence": {"same_day": true, "patch_ids": ["0aa2e1766b342d485aa4d51817595af8"], "statement_hash": "8083d2803e957ae96e87e94e8d681a4e2bbd775e61d5de91ea925956e3a45ce9"}}, {"rule": 2, "type": "equivalent", "target": "78099173e39c6c3e78fe3e6dbd3ae346", "evidence": {"same_day": true, "patch_ids": ["0aa2e1766b342d485aa4d51817595af8"], "statement_hash": "8083d2803e957ae96e87e94e8d681a4e2bbd775e61d5de91ea925956e3a45ce9"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "78099173e39c6c3e78fe3e6dbd3ae346", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "避免在使用某些 libsanitizer 选项测试 PostgreSQL 时崩溃", "evidence": {"same_day": true, "patch_ids": ["0aa2e1766b342d485aa4d51817595af8"], "statement_hash": "8083d2803e957ae96e87e94e8d681a4e2bbd775e61d5de91ea925956e3a45ce9"}, "url": "/docs/compare/?release=18.1#18.1-c00c424726e8c2ba", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "1a27f92e7f186016d17a28e80fd6ba2a", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "避免在使用某些 libsanitizer 选项测试 PostgreSQL 时崩溃", "evidence": {"same_day": true, "patch_ids": ["0aa2e1766b342d485aa4d51817595af8"], "statement_hash": "8083d2803e957ae96e87e94e8d681a4e2bbd775e61d5de91ea925956e3a45ce9"}, "url": "/docs/compare/?release=16.11#16.11-7de2c5088616a5bc", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}]}, {"id": "17.7-a455f9dd0199fe9d", "cves": [], "html": "修复 64 位 Windows 调试构建中虚假的内存上下文检查警告（David Rowley）§
", "text": "修复 64 位 Windows 调试构建中虚假的内存上下文检查警告（David Rowley）§", "title": "修复 64 位 Windows 调试构建中虚假的内存上下文检查警告", "commits": ["bd6f986c9"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "6ba1e475e811ea560eae7e50707ab413d71624be805251f11e7ca38fd2eff728", "section_path": ["变更"], "commit_groups": [["50eb4e118", "7b955c227", "86bd9497f", "af3a79e08", "bd6f986c9", "cdc04a6c3", "f3420e006"]], "identity_text": "Fix false memory-context-checking warnings in debug builds on 64-bit Windows (David Rowley)", "commit_aliases": ["50eb4e118", "7b955c227", "86bd9497f", "af3a79e08", "bd6f986c9", "cdc04a6c3", "f3420e006"], "source_commits": ["bd6f986c9"], "source_entry_id": "17.7/changes/044", "db_id": "84067ed8a3ba1028de01b8a46f2000b9", "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a", "relations": [{"rule": 2, "type": "equivalent", "target": "01aaa14579e082646793b4e27afbf21b", "evidence": {"same_day": true, "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a"}}, {"rule": 2, "type": "equivalent", "target": "0acaf19cbd02c251f9c72a3566ceafd2", "evidence": {"same_day": true, "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a"}}, {"rule": 2, "type": "equivalent", "target": "801cc326322f22aa573edf2c98d1162f", "evidence": {"same_day": true, "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a"}}, {"rule": 2, "type": "equivalent", "target": "8df4cb56b5956e0bcfd2f6b1733b74cc", "evidence": {"same_day": true, "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a"}}, {"rule": 2, "type": "equivalent", "target": "fc378456b09d8aee7ced8ece43c87341", "evidence": {"same_day": true, "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "8df4cb56b5956e0bcfd2f6b1733b74cc", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "修复 64 位 Windows 调试构建中虚假的内存上下文检查警告", "evidence": {"same_day": true, "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a"}, "url": "/docs/compare/?release=18.1#18.1-6ea24c894273b60d", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "801cc326322f22aa573edf2c98d1162f", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复 64 位 Windows 调试构建中虚假的内存上下文检查警告", "evidence": {"same_day": true, "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a"}, "url": "/docs/compare/?release=16.11#16.11-44cfa1596c4b914f", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "0acaf19cbd02c251f9c72a3566ceafd2", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复 64 位 Windows 调试构建中虚假的内存上下文检查警告", "evidence": {"same_day": true, "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a"}, "url": "/docs/compare/?release=15.15#15.15-3fd801b6ac3f82a6", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "01aaa14579e082646793b4e27afbf21b", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "修复 64 位 Windows 调试构建中虚假的内存上下文检查警告", "evidence": {"same_day": true, "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a"}, "url": "/docs/compare/?release=14.20#14.20-30a0eb01d03d06bf", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "fc378456b09d8aee7ced8ece43c87341", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "修复 64 位 Windows 调试构建中虚假的内存上下文检查警告", "evidence": {"same_day": true, "patch_ids": ["61b56c5fae6f5e9db534484ddd08ba36"], "statement_hash": "318257c40de6d58edd2102cd728c1f712d4472c110c6470d0b05fd6cea50be8a"}, "url": "/docs/compare/?release=13.23#13.23-5134dab5d7fbe159", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-da35b615699d0e38", "cves": [], "html": "正确处理 PL/pgSQL 赋值语句中的 GROUP BY DISTINCT（Tom Lane）§
解析器在此上下文中未能记录 DISTINCT 选项，导致命令的行为就像是普通的 GROUP BY。
避免在 PL/Python 中处理 SQL 错误时泄漏内存（Tom Lane）§
\n这修复了在我们之前的小版本中引入的会话生命周期内存泄漏。
", "text": "避免在 PL/Python 中处理 SQL 错误时泄漏内存（Tom Lane）§ 这修复了在我们之前的小版本中引入的会话生命周期内存泄漏。", "title": "避免在 PL/Python 中处理 SQL 错误时泄漏内存", "commits": ["fbc41a145"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "3714478237f20ba041b3f98d0ce21b3d0c1c56bf198f037e4ed67de0f7d6aa54", "section_path": ["变更"], "commit_groups": [["447a794f6", "4cde73259", "798b19d27", "7fb8c9240", "cbfd4d0f8", "d90c92d1c", "fbc41a145"]], "identity_text": "Avoid leaking memory when handling a SQL error within PL/Python (Tom Lane) This fixes a session-lifespan memory leak introduced in our previous minor releases.", "commit_aliases": ["447a794f6", "4cde73259", "798b19d27", "7fb8c9240", "cbfd4d0f8", "d90c92d1c", "fbc41a145"], "source_commits": ["fbc41a145"], "source_entry_id": "17.7/changes/046", "db_id": "4567a5ad601fcfb6e367a0d5788654f3", "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0", "relations": [{"rule": 2, "type": "equivalent", "target": "1cc5187c2c4ae41cf3accaadaacb20c6", "evidence": {"same_day": true, "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0"}}, {"rule": 2, "type": "equivalent", "target": "21e26aeb99c1f4efef5ee4d427588817", "evidence": {"same_day": true, "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0"}}, {"rule": 2, "type": "equivalent", "target": "6e6104594627174dfaa8204ac54cf50d", "evidence": {"same_day": true, "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0"}}, {"rule": 2, "type": "equivalent", "target": "8ed8073833432a5a8b59221fab2bfd05", "evidence": {"same_day": true, "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0"}}, {"rule": 2, "type": "equivalent", "target": "f72d5243e6c8215039615db964cfa0bc", "evidence": {"same_day": true, "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "8ed8073833432a5a8b59221fab2bfd05", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "避免在 PL/Python 中处理 SQL 错误时泄漏内存", "evidence": {"same_day": true, "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0"}, "url": "/docs/compare/?release=18.1#18.1-da9fd9dc692db55b", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "21e26aeb99c1f4efef5ee4d427588817", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "避免在 PL/Python 中处理 SQL 错误时泄漏内存", "evidence": {"same_day": true, "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0"}, "url": "/docs/compare/?release=16.11#16.11-459f76577a275299", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "f72d5243e6c8215039615db964cfa0bc", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "避免在 PL/Python 中处理 SQL 错误时泄漏内存", "evidence": {"same_day": true, "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0"}, "url": "/docs/compare/?release=15.15#15.15-221591e26f573b0b", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "1cc5187c2c4ae41cf3accaadaacb20c6", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "避免在 PL/Python 中处理 SQL 错误时泄漏内存", "evidence": {"same_day": true, "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0"}, "url": "/docs/compare/?release=14.20#14.20-c5293fc1ca271610", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "6e6104594627174dfaa8204ac54cf50d", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "避免在 PL/Python 中处理 SQL 错误时泄漏内存", "evidence": {"same_day": true, "patch_ids": ["304183406b9fbfa71ce70fb98dd02b07"], "statement_hash": "9ed1c89d3ad5eea0e6de5ada0081665e4f99165f891937f5603d7020851959b0"}, "url": "/docs/compare/?release=13.23#13.23-92a4c4e07d0dc6be", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-ed5219393ef57bc7", "cves": [], "html": "修复 libpq 对高位设置字符的跟踪输出（Ran Benita）§
\n在 char 被视为有符号类型的平台上，输出包含难看的 \\xffffff 装饰。
修复 libpq 在 Windows 上 GSSAPI 逻辑中处理套接字相关错误的问题（Ning Wu，Tom Lane）§
\n使用 GSSAPI 加密/解密传输数据的代码未能正确识别连接套接字上的错误条件，因为 Windows 报告这些错误的方式与其他平台不同。这导致在 Windows 上无法建立此类连接。
", "text": "修复 libpq 在 Windows 上 GSSAPI 逻辑中处理套接字相关错误的问题（Ning Wu，Tom Lane）§ 使用 GSSAPI 加密/解密传输数据的代码未能正确识别连接套接字上的错误条件，因为 Windows 报告这些错误的方式与其他平台不同。这导致在 Windows 上无法建立此类连接。", "title": "修复 libpq 在 Windows 上 GSSAPI 逻辑中处理套接字相关错误的问题", "commits": ["1c4671f7b"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "7d5eae58286de8d1200b2bb759fc11f88193c80b0dac097a2770514eb77e4ed6", "section_path": ["变更"], "commit_groups": [["1c4671f7b", "46c4478db", "771b106d1", "d83879a32", "ea78bd6d5", "f46d77377", "fc287cf3c"]], "identity_text": "Fix libpq's handling of socket-related errors on Windows within its GSSAPI logic (Ning Wu, Tom Lane) The code for encrypting/decrypting transmitted data using GSSAPI did not correctly recognize error conditions on the connection socket, since Windows reports those differently than other platforms. 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\n从早于 v18 的服务器转储时，pg_dump 未能保留这类约束。
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\n此错误可能导致并行 pg_restore 在约束本身恢复之前就尝试创建注释。
", "text": "在 pg_dump 中，为单独导出的域约束的注释标记正确的依赖关系（Noah Misch）§ 此错误可能导致并行 pg_restore 在约束本身恢复之前就尝试创建注释。", "title": "在 pg_dump 中，为单独导出的域约束的注释标记正确的依赖关系", "commits": ["e127764b6"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "b8f9e23153450351d9121e458703d0114d704a3b715c838e85d1afbdb6408bd2", "section_path": ["变更"], "commit_groups": [["0773f3a87", "3cf328eca", "4ad846445", "85d6ed31f", "a685c057a", "c044b50d1", "e127764b6"]], "identity_text": "In pg_dump, label comments for separately-dumped domain constraints with the proper dependency (Noah Misch) This error could lead to parallel pg_restore attempting to create the comment before the constraint itself has been restored.", "commit_aliases": ["0773f3a87", "3cf328eca", "4ad846445", "85d6ed31f", "a685c057a", "c044b50d1", "e127764b6"], "source_commits": ["e127764b6"], "source_entry_id": "17.7/changes/052", "db_id": "6d2ebbc7bf31a2fbcaaa5897ad5b55a9", "patch_ids": ["f5ee4fcdb9591dfab45e16d82b5778a9"], "statement_hash": "1f7f6f21e0a04820a9643f0abe96793463cd605b1750756f5826907a3cae8419", "relations": [{"rule": 2, "type": "equivalent", "target": "5212881b90e8e1e9551fbe13b95d0ebe", "evidence": {"same_day": true, "patch_ids": ["f5ee4fcdb9591dfab45e16d82b5778a9"], "statement_hash": "1f7f6f21e0a04820a9643f0abe96793463cd605b1750756f5826907a3cae8419"}}, {"rule": 2, "type": "equivalent", "target": "57770ce46bea4407a1c3d56a9de88c89", "evidence": {"same_day": true, "patch_ids": ["f5ee4fcdb9591dfab45e16d82b5778a9"], "statement_hash": "1f7f6f21e0a04820a9643f0abe96793463cd605b1750756f5826907a3cae8419"}}, {"rule": 2, "type": "equivalent", "target": "829eff490d670b365e978ff8d767ec0b", "evidence": {"same_day": true, "patch_ids": ["f5ee4fcdb9591dfab45e16d82b5778a9"], "statement_hash": "1f7f6f21e0a04820a9643f0abe96793463cd605b1750756f5826907a3cae8419"}}, {"rule": 2, "type": "equivalent", "target": "c6f339abde1f188511906bff28c51578", "evidence": {"same_day": true, "patch_ids": ["f5ee4fcdb9591dfab45e16d82b5778a9"], "statement_hash": "1f7f6f21e0a04820a9643f0abe96793463cd605b1750756f5826907a3cae8419"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "c6f339abde1f188511906bff28c51578", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "在 pg_dump 中，为单独导出的域约束的注释标记正确的依赖关系", "evidence": {"same_day": true, "patch_ids": ["f5ee4fcdb9591dfab45e16d82b5778a9"], "statement_hash": "1f7f6f21e0a04820a9643f0abe96793463cd605b1750756f5826907a3cae8419"}, "url": "/docs/compare/?release=16.11#16.11-8bdbdcce891001b0", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "5212881b90e8e1e9551fbe13b95d0ebe", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "在 pg_dump 中，为单独导出的域约束的注释标记正确的依赖关系", "evidence": {"same_day": true, "patch_ids": ["f5ee4fcdb9591dfab45e16d82b5778a9"], "statement_hash": "1f7f6f21e0a04820a9643f0abe96793463cd605b1750756f5826907a3cae8419"}, "url": "/docs/compare/?release=15.15#15.15-ff1fe39cc66dc574", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "57770ce46bea4407a1c3d56a9de88c89", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "在 pg_dump 中，为单独导出的域约束的注释标记正确的依赖关系", "evidence": {"same_day": true, "patch_ids": ["f5ee4fcdb9591dfab45e16d82b5778a9"], "statement_hash": "1f7f6f21e0a04820a9643f0abe96793463cd605b1750756f5826907a3cae8419"}, "url": "/docs/compare/?release=14.20#14.20-4a74c2ab484b5e15", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "829eff490d670b365e978ff8d767ec0b", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "在 pg_dump 中，为单独导出的域约束的注释标记正确的依赖关系", "evidence": {"same_day": true, "patch_ids": ["f5ee4fcdb9591dfab45e16d82b5778a9"], "statement_hash": "1f7f6f21e0a04820a9643f0abe96793463cd605b1750756f5826907a3cae8419"}, "url": "/docs/compare/?release=13.23#13.23-bf93dd5cf806538c", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-746daa75c18338eb", "cves": [], "html": "在 pg_restore 中，跳过未被恢复的发布和订阅的注释和安全标签（Jian He，Fujii Masao）§ §
\n当指定 --no-publications 或 --no-subscriptions 时，不要为这些对象发出 COMMENT 或 SECURITY LABEL 命令。
修复 pg_dump 和 pg_restore 中数据压缩逻辑的各种错误（Daniel Gustafsson，Tom Lane）§ § §
\n多处缺少或不正确的错误检查，还存在会在大端硬件上出现的可移植性问题。这些问题一直未被发现，因为此代码仅用于读取目录格式导出中压缩的 TOC 文件。 pg_dump 不会生成这样的导出；该情况只有在事后手动压缩 TOC 文件时才会出现，这是一种受支持但非常罕见的操作。
", "text": "修复 pg_dump 和 pg_restore 中数据压缩逻辑的各种错误（Daniel Gustafsson，Tom Lane）§ § § 多处缺少或不正确的错误检查，还存在会在大端硬件上出现的可移植性问题。这些问题一直未被发现，因为此代码仅用于读取目录格式导出中压缩的 TOC 文件。 pg_dump 不会生成这样的导出；该情况只有在事后手动压缩 TOC 文件时才会出现，这是一种受支持但非常罕见的操作。", "title": "修复 pg_dump 和 pg_restore 中数据压缩逻辑的各种错误", "commits": ["2efca1633", "92268b35d", "bf18e9bd7"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "c24997df03b09bf89e01e7fcac0b5a8bd7d422365684376563c9fe9dfe3fa099", "section_path": ["变更"], "commit_groups": [["1518b7d76", "6a4009747", "a239c4a0c", "bf18e9bd7"], ["277dec651", "2efca1633", "33276cd02", "40dc710a6", "8b9924bce", "aa1fcd087", "c865f5b9f"], ["8980c724b", "92268b35d", "e686010c5", "ec017a305"]], "identity_text": "Fix assorted errors in the data compression logic in pg_dump and pg_restore (Daniel Gustafsson, Tom Lane) Error checking was missing or incorrect in several places, and there were also portability issues that would manifest on big-endian hardware. These problems had been missed because this code is only used to read compressed TOC files within directory-format dumps. pg_dump never produces such a dump; the case can be reached only by manually compressing the TOC file after the fact, which is a supported thing to do but very uncommon.", "commit_aliases": ["1518b7d76", "277dec651", "2efca1633", "33276cd02", "40dc710a6", "6a4009747", "8980c724b", "8b9924bce", "92268b35d", "a239c4a0c", "aa1fcd087", "bf18e9bd7", "c865f5b9f", "e686010c5", "ec017a305"], "source_commits": ["2efca1633", "92268b35d", "bf18e9bd7"], "source_entry_id": "17.7/changes/054", "db_id": "f2020f100f9176ff2a2e8a154fa90714", "patch_ids": ["34d09b07f99c29b50cf53cc13100ea10", "4eef07986dd4d4d15a60a29e5a15998d", "c6e514b9bc3c0e05d2b6d2fc63af7a54"], "statement_hash": "e1d5e819c74cee28f2154059267d12fd8e6cfc4c9d5affbaf9861a9f4788798c", "relations": [{"rule": 2, "type": "equivalent", "target": "12b4dd9512e147889a0b739f2bbf5ade", "evidence": {"same_day": true, "patch_ids": 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pgbench 不打算支持这种情况，但之前会进入无限循环。
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\n在连续两次 PQgetResult 调用都失败的情况下， pgbench 可能报告错误的错误消息。
在 pgbench 中，修复流水线模式下关于错误的错误断言（Yugo Nagata）§
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", "text": "修复 pg_combinebackup 中每个文件的内存泄漏（Tom Lane）§", "title": "修复 pg_combinebackup 中每个文件的内存泄漏", "commits": ["4eb6992af"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "663b007391675da7036fc4530958a99be32b3d72412cd424351ff39d181593f0", "section_path": ["变更"], "commit_groups": [["4eb6992af", "9224c3025", "e2072b47b"]], "identity_text": "Fix per-file memory leakage in pg_combinebackup (Tom Lane)", "commit_aliases": ["4eb6992af", "9224c3025", "e2072b47b"], "source_commits": ["4eb6992af"], "source_entry_id": "17.7/changes/058", "db_id": "027928a265dc472699b9bfa81f7bcb4c", "patch_ids": ["4adc1ba9937db7990ee1e4b0eed20095"], "statement_hash": "cfb0b2884d442379e85fa76d1328a0c95c85939f1727ad5b8efc4d89d3dd1b86", "relations": [{"rule": 2, "type": "equivalent", "target": "7e8fa99b0b4955f6b3cb8bd43181225f", "evidence": {"same_day": true, "patch_ids": ["4adc1ba9937db7990ee1e4b0eed20095"], "statement_hash": "cfb0b2884d442379e85fa76d1328a0c95c85939f1727ad5b8efc4d89d3dd1b86"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "7e8fa99b0b4955f6b3cb8bd43181225f", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "修复 pg_combinebackup 中每个文件的内存泄漏", "evidence": {"same_day": true, "patch_ids": ["4adc1ba9937db7990ee1e4b0eed20095"], "statement_hash": "cfb0b2884d442379e85fa76d1328a0c95c85939f1727ad5b8efc4d89d3dd1b86"}, "url": "/docs/compare/?release=18.1#18.1-e9df74682a19abe9", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}]}, {"id": "17.7-f96cf4298c654962", "cves": [], "html": "确保 contrib/pg_buffercache 函数可以被取消（Satyanarayana Narlapuram，Yuhang Qiu）§
某些代码路径能够长时间运行而不检查中断。
", "text": "确保 contrib/pg_buffercache 函数可以被取消（Satyanarayana Narlapuram，Yuhang Qiu）§ 某些代码路径能够长时间运行而不检查中断。", "title": "确保 contrib/pg_buffercache 函数可以被取消", "commits": ["b6090ed96"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "e4f7847008ef92a093ef07d35893be87ce588fdda066f78a1ee493ee2da21eab", "section_path": ["变更"], "commit_groups": [["0beb7e933", "79643105a", "7d8d36289", "815fcfb20", "b6090ed96", "eab9e4e27", "eb9ee4d18"], ["71aa2e114", "8ae0f6a0c"]], "identity_text": "Ensure that contrib/pg_buffercache functions can be canceled (Satyanarayana Narlapuram, Yuhang Qiu) Some code paths were capable of running for a long time without checking for interrupts.", "commit_aliases": ["0beb7e933", "71aa2e114", "79643105a", "7d8d36289", "815fcfb20", "8ae0f6a0c", "b6090ed96", "eab9e4e27", "eb9ee4d18"], "source_commits": ["8ae0f6a0c", "b6090ed96"], "source_entry_id": "17.7/changes/059", "db_id": 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pg_prewarm() 要求对要预热的关系具有 SELECT 权限。但由于索引没有自己的 SQL 权限，这导致非超级用户无法预热索引。改为检查索引所属表的 SELECT 权限。
使 contrib/pgstattuple 更健壮地处理空页面或无效索引页面（Nitin Motiani）§
将全零页面计为空闲空间，并忽略根据页面特殊空间大小检查判定为无效的页面。B-树索引的代码已经将全零页面计为空闲空间，但 hash 和 gist 的代码会报告错误并退出，这被发现对用户不太友好。同样，使这三种情况在忽略损坏页面而非抛出错误方面保持一致。
", "text": "使 contrib/pgstattuple 更健壮地处理空页面或无效索引页面（Nitin Motiani）§ 将全零页面计为空闲空间，并忽略根据页面特殊空间大小检查判定为无效的页面。B-树索引的代码已经将全零页面计为空闲空间，但 hash 和 gist 的代码会报告错误并退出，这被发现对用户不太友好。同样，使这三种情况在忽略损坏页面而非抛出错误方面保持一致。", "title": "使 contrib/pgstattuple 更健壮地处理空页面或无效索引页面", "commits": ["036decbba"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "05049f14cfe0ccd45e067ec54f4744f3b05280c65c658813001b52ae47923f5c", "section_path": ["变更"], "commit_groups": [["036decbba", "49b5f0b53", "684a745f5", "c0f9fe877", "c207bf473", "ee2dbcad0", "fc295beb7"]], "identity_text": "Make contrib/pgstattuple more robust about empty or invalid index pages (Nitin Motiani) Count all-zero pages as free space, and ignore pages that are invalid according to a check of the page's special-space size. The code for btree indexes already counted all-zero pages as free, but the hash and gist code would error out, which has been found to be much less user-friendly. Similarly, make all three cases agree on ignoring corrupted pages rather than throwing errors.", "commit_aliases": ["036decbba", "49b5f0b53", "684a745f5", "c0f9fe877", "c207bf473", "ee2dbcad0", "fc295beb7"], "source_commits": ["036decbba"], "source_entry_id": "17.7/changes/061", "db_id": "3be631a7028f49faa7a328c190d249c2", "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d", "relations": [{"rule": 2, "type": "equivalent", "target": "7cf5a3928b0125574395c382ed52c5b1", "evidence": {"same_day": true, "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d"}}, {"rule": 2, "type": "equivalent", "target": "a6ec20ccdb529fbc57070c204bf73a7c", "evidence": {"same_day": true, "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d"}}, {"rule": 2, "type": "equivalent", "target": "bd4e2931635023fef1578e6a6ef3185b", "evidence": {"same_day": true, "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d"}}, {"rule": 2, "type": "equivalent", "target": "dbdca19037730dda97abc3c0ca87e248", "evidence": {"same_day": true, "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d"}}, {"rule": 2, "type": "equivalent", "target": "e2d3ae73f7d42937b9fa7746740e86a5", "evidence": {"same_day": true, "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d"}}], "version": "17.7", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "7cf5a3928b0125574395c382ed52c5b1", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "使 contrib/pgstattuple 更健壮地处理空页面或无效索引页面", "evidence": {"same_day": true, "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d"}, "url": "/docs/compare/?release=18.1#18.1-e14a404bd57c041c", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "a6ec20ccdb529fbc57070c204bf73a7c", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "使 contrib/pgstattuple 更健壮地处理空页面或无效索引页面", "evidence": {"same_day": true, "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d"}, "url": "/docs/compare/?release=16.11#16.11-4975417d9448e20f", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "e2d3ae73f7d42937b9fa7746740e86a5", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "使 contrib/pgstattuple 更健壮地处理空页面或无效索引页面", "evidence": {"same_day": true, "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d"}, "url": "/docs/compare/?release=15.15#15.15-dc5d3ccafec57b41", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "dbdca19037730dda97abc3c0ca87e248", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "使 contrib/pgstattuple 更健壮地处理空页面或无效索引页面", "evidence": {"same_day": true, "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d"}, "url": "/docs/compare/?release=14.20#14.20-c4d40eb2b10eae53", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "bd4e2931635023fef1578e6a6ef3185b", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "使 contrib/pgstattuple 更健壮地处理空页面或无效索引页面", "evidence": {"same_day": true, "patch_ids": ["1ec2ccb4b684e5f57590aab9c7c2a444"], "statement_hash": "c02e1d95147e0120948e2eb5839f7964fb935bba934375858d2457ca4e09c98d"}, "url": "/docs/compare/?release=13.23#13.23-12ea4dfe533f710f", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-a358469faddcaf65", "cves": [], "html": "加固我们的读写屏障宏以满足 Clang 的要求（Thomas Munro）§
\n我们假设 __atomic_thread_fence() 是防止 C 编译器在其周围重排内存访问的充分屏障，但似乎对于 Clang 来说并非如此，导致它至少为 RISC-V、MIPS 和 LoongArch 机器生成不正确的代码。添加显式编译器屏障来修复此问题。
修复使用 LLVM 21 及更高版本的构建（Holger Hoffstätte）§
", "text": "修复使用 LLVM 21 及更高版本的构建（Holger Hoffstätte）§", "title": "修复使用 LLVM 21 及更高版本的构建", "commits": ["755f01ad7"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES", "source_hash": "9935ae080e46ee28556d7b4137fbe5ceecf0fb2b01e7b1ff0ac63b36faf20ccb", "section_path": ["变更"], "commit_groups": [["2670881af", "282d0bdee", "59d6e843e", "72a24bebc", "755f01ad7", "c11ac811a", "fbfc36e94"]], "identity_text": "Fix building with LLVM version 21 and later (Holger Hoffstätte)", "commit_aliases": ["2670881af", "282d0bdee", "59d6e843e", "72a24bebc", "755f01ad7", "c11ac811a", "fbfc36e94"], "source_commits": ["755f01ad7"], "source_entry_id": "17.7/changes/063", "db_id": "24b4031db588e6778d74612aa49172b2", "patch_ids": ["63496bd581c70532b905b77339cefed9"], "statement_hash": "ecfa565a92ce16d10367034784e04bdc340da125574863a7c980e80e24ec746c", "relations": [{"rule": 2, "type": "equivalent", "target": "152565dd357e9e4fcba3b2d002b2b0c7", "evidence": {"same_day": true, "patch_ids": ["63496bd581c70532b905b77339cefed9"], "statement_hash": "ecfa565a92ce16d10367034784e04bdc340da125574863a7c980e80e24ec746c"}}, {"rule": 2, "type": "equivalent", "target": "aab0b53feda88c49c8d1c8ccdd1a6349", "evidence": {"same_day": true, "patch_ids": ["63496bd581c70532b905b77339cefed9"], "statement_hash": "ecfa565a92ce16d10367034784e04bdc340da125574863a7c980e80e24ec746c"}}, {"rule": 2, "type": "equivalent", "target": "da5c567c128753d27a14a732c1480620", "evidence": {"same_day": true, "patch_ids": ["63496bd581c70532b905b77339cefed9"], "statement_hash": "ecfa565a92ce16d10367034784e04bdc340da125574863a7c980e80e24ec746c"}}, {"rule": 2, "type": "equivalent", "target": "fcb8805d652dd1509e939426bac8ece8", "evidence": {"same_day": true, "patch_ids": ["63496bd581c70532b905b77339cefed9"], "statement_hash": "ecfa565a92ce16d10367034784e04bdc340da125574863a7c980e80e24ec746c"}}], "version": "17.7", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "aab0b53feda88c49c8d1c8ccdd1a6349", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "修复使用 LLVM 21 及更高版本的构建", "evidence": {"same_day": true, "patch_ids": ["63496bd581c70532b905b77339cefed9"], "statement_hash": "ecfa565a92ce16d10367034784e04bdc340da125574863a7c980e80e24ec746c"}, "url": "/docs/compare/?release=16.11#16.11-1c0eb680df6b12a9", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "da5c567c128753d27a14a732c1480620", "kind": "equivalent", "version": "15.15", "label": "15.15", "title": "修复使用 LLVM 21 及更高版本的构建", "evidence": {"same_day": true, "patch_ids": ["63496bd581c70532b905b77339cefed9"], "statement_hash": "ecfa565a92ce16d10367034784e04bdc340da125574863a7c980e80e24ec746c"}, "url": "/docs/compare/?release=15.15#15.15-655605b314358213", "source_url": "/docs/release/15.15/#ZH-AUTO-RELEASE-15-SECT2-6"}, {"db_id": "fcb8805d652dd1509e939426bac8ece8", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "修复使用 LLVM 21 及更高版本的构建", "evidence": {"same_day": true, "patch_ids": ["63496bd581c70532b905b77339cefed9"], "statement_hash": "ecfa565a92ce16d10367034784e04bdc340da125574863a7c980e80e24ec746c"}, "url": "/docs/compare/?release=14.20#14.20-78426d970b4ba2fa", "source_url": "/docs/release/14.20/#ZH-AUTO-RELEASE-14-SECT2-6"}, {"db_id": "152565dd357e9e4fcba3b2d002b2b0c7", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "修复使用 LLVM 21 及更高版本的构建", "evidence": {"same_day": true, "patch_ids": ["63496bd581c70532b905b77339cefed9"], "statement_hash": "ecfa565a92ce16d10367034784e04bdc340da125574863a7c980e80e24ec746c"}, "url": "/docs/compare/?release=13.23#13.23-b3c435bdb8475244", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "17.7-a705ccb5fb05c939", "cves": [], "html": "使用 meson 构建时，对 numeric.c 和 checksum.c 应用与 makefile 构建相同的特殊优化标志（Nathan Bossart，Jeff Davis）§ §
对两个文件都使用 -ftree-vectorize，并对 checksum.c 额外使用 -funroll-loops，以匹配 makefile 长期以来的做法。
修复 PGXS 构建基础设施以支持为扩展构建 NLS po 文件（Ryo Matsumura）§
对于运行 17.X 的用户，无需执行转储/恢复。
\n不过，如果你有任何 BRIN numeric_minmax_multi_ops 索引，建议在更新后对其重建索引。见下文第四条变更记录。
此外，如果你是从早于 17.5 的版本升级，请参见第 E.7 节。
", "compatibility_count": 0, "label": "17.6", "status_label": "受支持版本", "eol": "2029-11-08", "age_days": 412, "support_days": 1135, "entries": [{"id": "17.6-235b908f6ae5f3ee", "cves": ["CVE-2017-7484", "CVE-2025-8713"], "html": "加强规划器估算函数中的安全检查（Dean Rasheed）§
\n针对 CVE-2017-7484 的修复及后续修复，旨在防止泄漏函数被应用于调用用户无权读取的列的统计数据。在该保护措施中发现了两个漏洞。其中一个漏洞适用于分区和继承层次结构，其中表上的 RLS 策略应当限制对统计数据的访问，但实际上并未限制。
\n另一个漏洞适用于查询通过视图访问表的情况，其中视图所有者有权读取底层表，但调用用户没有视图的权限。视图所有者的权限满足了安全检查，而泄漏函数会在我们检查调用用户对视图的权限之前就被应用于底层表的统计数据。此问题已通过在规划开始时对视图进行安全检查来修复。这可能会导致权限错误比之前更早发生。
\nPostgreSQL 项目感谢 Dean Rasheed 报告此问题。（CVE-2025-8713）
", "text": "加强规划器估算函数中的安全检查（Dean Rasheed）§ 针对 CVE-2017-7484 的修复及后续修复，旨在防止泄漏函数被应用于调用用户无权读取的列的统计数据。在该保护措施中发现了两个漏洞。其中一个漏洞适用于分区和继承层次结构，其中表上的 RLS 策略应当限制对统计数据的访问，但实际上并未限制。 另一个漏洞适用于查询通过视图访问表的情况，其中视图所有者有权读取底层表，但调用用户没有视图的权限。视图所有者的权限满足了安全检查，而泄漏函数会在我们检查调用用户对视图的权限之前就被应用于底层表的统计数据。此问题已通过在规划开始时对视图进行安全检查来修复。这可能会导致权限错误比之前更早发生。 PostgreSQL 项目感谢 Dean Rasheed 报告此问题。（CVE-2025-8713）", "title": "加强规划器估算函数中的安全检查", "commits": ["a85eddab2"], "section": "变更", "category": "security", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "55fa416fb45c9a8a27bada8a709e7c891cbd766303bf526d1b96612675271707", "section_path": ["变更"], "commit_groups": [["22424953c", "415badc13", "533211ded", "64f77c6a6", "7e86da539", "a85eddab2", "afe38fb6a"]], "identity_text": "Tighten security checks in planner estimation functions (Dean Rasheed) The fix for CVE-2017-7484, plus followup fixes, intended to prevent leaky functions from being applied to statistics data for columns that the calling user does not have permission to read. Two gaps in that protection have been found. One gap applies to partitioning and inheritance hierarchies where RLS policies on the tables should restrict access to statistics data, but did not. The other gap applies to cases where the query accesses a table via a view, and the view owner has permissions to read the underlying table but the calling user does not have permissions on the view. The view owner's permissions satisfied the security checks, and the leaky function would get applied to the underlying table's statistics before we check the calling user's permissions on the view. This has been fixed by making security checks on views occur at the start of planning. That might cause permissions failures to occur earlier than before. The PostgreSQL Project thanks Dean Rasheed for reporting this problem. (CVE-2025-8713)", "commit_aliases": ["22424953c", "415badc13", "533211ded", "64f77c6a6", "7e86da539", "a85eddab2", "afe38fb6a"], "source_commits": ["a85eddab2"], "source_entry_id": "17.6/changes/001", "db_id": "4008a7a7d764b0695b4f8cb5eecbc29c", "patch_ids": ["0aa32d55e226afa9d177c29444a6c052"], "statement_hash": "b5a2c913f8e54333d177ebe317094715182eb911d0a897cf899b5caac948654c", "relations": [{"rule": 2, "type": "equivalent", "target": "61dc46af7f1da97de62a07c6c1063f4e", "evidence": {"same_day": true, "patch_ids": ["0aa32d55e226afa9d177c29444a6c052"], "statement_hash": "b5a2c913f8e54333d177ebe317094715182eb911d0a897cf899b5caac948654c"}}, {"rule": 2, "type": "equivalent", "target": "672931f9e1dc343ad721ab8a9cdda772", "evidence": {"same_day": true, "patch_ids": ["0aa32d55e226afa9d177c29444a6c052"], "statement_hash": "b5a2c913f8e54333d177ebe317094715182eb911d0a897cf899b5caac948654c"}}, {"rule": 2, "type": "equivalent", "target": "bc9c4792b1c85d7d0f1221cc9bbea0a3", "evidence": {"same_day": true, "patch_ids": ["0aa32d55e226afa9d177c29444a6c052"], "statement_hash": "b5a2c913f8e54333d177ebe317094715182eb911d0a897cf899b5caac948654c"}}, {"rule": 2, "type": "equivalent", "target": "db7e96e5834fa62952eee3d912b2a351", "evidence": {"same_day": true, "patch_ids": ["0aa32d55e226afa9d177c29444a6c052"], "statement_hash": "b5a2c913f8e54333d177ebe317094715182eb911d0a897cf899b5caac948654c"}}], "version": "17.6", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "672931f9e1dc343ad721ab8a9cdda772", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "加强规划器估算函数中的安全检查", "evidence": {"same_day": true, "patch_ids": ["0aa32d55e226afa9d177c29444a6c052"], "statement_hash": "b5a2c913f8e54333d177ebe317094715182eb911d0a897cf899b5caac948654c"}, "url": "/docs/compare/?release=16.10#16.10-423dcb75ca30c201", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "bc9c4792b1c85d7d0f1221cc9bbea0a3", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "加强规划器估算函数中的安全检查", "evidence": {"same_day": true, "patch_ids": ["0aa32d55e226afa9d177c29444a6c052"], "statement_hash": "b5a2c913f8e54333d177ebe317094715182eb911d0a897cf899b5caac948654c"}, "url": "/docs/compare/?release=15.14#15.14-52cce071b03c8e4a", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "61dc46af7f1da97de62a07c6c1063f4e", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "加强规划器估算函数中的安全检查", "evidence": {"same_day": true, "patch_ids": ["0aa32d55e226afa9d177c29444a6c052"], "statement_hash": "b5a2c913f8e54333d177ebe317094715182eb911d0a897cf899b5caac948654c"}, "url": "/docs/compare/?release=14.19#14.19-37596904cdde57bc", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "db7e96e5834fa62952eee3d912b2a351", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "加强规划器估算函数中的安全检查", "evidence": {"same_day": true, "patch_ids": ["0aa32d55e226afa9d177c29444a6c052"], "statement_hash": "b5a2c913f8e54333d177ebe317094715182eb911d0a897cf899b5caac948654c"}, "url": "/docs/compare/?release=13.22#13.22-639d2c839166c19d", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-5be27cec56fb902a", "cves": ["CVE-2025-8714"], "html": "防止 pg_dump 脚本被用于攻击执行恢复的用户（Nathan Bossart）§
\n由于导出/恢复操作通常涉及以超级用户身份运行 SQL 命令，目标数据库安装必须信任源服务器。然而，这并不意味着执行 psql 进行恢复的操作系统用户也需要信任源服务器。这里的风险是，已获得源服务器超级用户级别控制权的攻击者可能会使其生成被解释为 psql 元命令的文本。这将提供对恢复用户自身帐户的 shell 级别访问，独立于对目标数据库的访问。
\n为了提供确保不会发生此问题的正面保证，扩展了 psql，增加了 \\restrict 命令来阻止执行后续的元命令，并让 pg_dump 在来自源服务器的任何数据之前发出该命令。
PostgreSQL 项目感谢 Martin Rakhmanov、Matthieu Denais 和 RyotaK 报告此问题。（CVE-2025-8714）
", "text": "防止 pg_dump 脚本被用于攻击执行恢复的用户（Nathan Bossart）§ 由于导出/恢复操作通常涉及以超级用户身份运行 SQL 命令，目标数据库安装必须信任源服务器。然而，这并不意味着执行 psql 进行恢复的操作系统用户也需要信任源服务器。这里的风险是，已获得源服务器超级用户级别控制权的攻击者可能会使其生成被解释为 psql 元命令的文本。这将提供对恢复用户自身帐户的 shell 级别访问，独立于对目标数据库的访问。 为了提供确保不会发生此问题的正面保证，扩展了 psql，增加了 \\restrict 命令来阻止执行后续的元命令，并让 pg_dump 在来自源服务器的任何数据之前发出该命令。 PostgreSQL 项目感谢 Martin Rakhmanov、Matthieu Denais 和 RyotaK 报告此问题。（CVE-2025-8714）", "title": "防止 pg_dump 脚本被用于攻击执行恢复的用户", "commits": ["575f54d4c"], "section": "变更", "category": "security", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "dd36fcd37e3a448e6d0a44006e3eac9083225b4a67afb9f911a272ac60a93527", "section_path": ["变更"], "commit_groups": [["27d3dee68", "8967c33c6"], ["424040506", "575f54d4c", "67a2fbb8f", "71ea0d679", "7ad8e7909", "c204bd39f", "e4998d089"]], "identity_text": "Prevent pg_dump scripts from being used to attack the user running the restore (Nathan Bossart) Since dump/restore operations typically involve running SQL commands as superuser, the target database installation must trust the source server. However, it does not follow that the operating system user who executes psql to perform the restore should have to trust the source server. The risk here is that an attacker who has gained superuser-level control over the source server might be able to cause it to emit text that would be interpreted as psql meta-commands. That would provide shell-level access to the restoring user's own account, independently of access to the target database. To provide a positive guarantee that this can't happen, extend psql with a \\restrict command that prevents execution of further meta-commands, and teach pg_dump to issue that before any data coming from the source server. The PostgreSQL Project thanks Martin Rakhmanov, Matthieu Denais, and RyotaK for reporting this problem. (CVE-2025-8714)", "commit_aliases": ["27d3dee68", "424040506", "575f54d4c", "67a2fbb8f", "71ea0d679", "7ad8e7909", "8967c33c6", "c204bd39f", "e4998d089"], "source_commits": ["575f54d4c", "8967c33c6"], "source_entry_id": "17.6/changes/002", "db_id": "93ac3cfe25f78778dca8ff85e31817be", "patch_ids": ["a88fbc1d59a5e722f1cb99fc8acd42be", "c340e675e09ada8e08edff5a1a3a3ae8"], "statement_hash": "0b4e588c95eb5bd3d79fce471c6627a69abf65eb71c549b5ef14a7a91adbcc3a", "relations": [{"rule": 2, "type": "equivalent", "target": "2995efbedeebcfc1ca35284729dc63ca", "evidence": {"same_day": true, "patch_ids": ["a88fbc1d59a5e722f1cb99fc8acd42be", "c340e675e09ada8e08edff5a1a3a3ae8"], "statement_hash": "0b4e588c95eb5bd3d79fce471c6627a69abf65eb71c549b5ef14a7a91adbcc3a"}}, {"rule": 2, "type": "equivalent", "target": "69c7f2c77e9261cdc8fe8d36c3769742", "evidence": {"same_day": true, "patch_ids": ["a88fbc1d59a5e722f1cb99fc8acd42be", "c340e675e09ada8e08edff5a1a3a3ae8"], "statement_hash": "0b4e588c95eb5bd3d79fce471c6627a69abf65eb71c549b5ef14a7a91adbcc3a"}}, {"rule": 2, "type": "equivalent", "target": "caaaa341c31c9018981e72d6161a2801", "evidence": {"same_day": true, "patch_ids": ["a88fbc1d59a5e722f1cb99fc8acd42be", "c340e675e09ada8e08edff5a1a3a3ae8"], "statement_hash": "0b4e588c95eb5bd3d79fce471c6627a69abf65eb71c549b5ef14a7a91adbcc3a"}}, {"rule": 2, "type": "equivalent", "target": "dc692223d4e4409943580a9615f51575", "evidence": {"same_day": true, "patch_ids": ["a88fbc1d59a5e722f1cb99fc8acd42be", "c340e675e09ada8e08edff5a1a3a3ae8"], "statement_hash": "0b4e588c95eb5bd3d79fce471c6627a69abf65eb71c549b5ef14a7a91adbcc3a"}}], "version": "17.6", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "69c7f2c77e9261cdc8fe8d36c3769742", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "防止 pg_dump 脚本被用于攻击执行恢复的用户", "evidence": {"same_day": true, "patch_ids": ["a88fbc1d59a5e722f1cb99fc8acd42be", "c340e675e09ada8e08edff5a1a3a3ae8"], "statement_hash": "0b4e588c95eb5bd3d79fce471c6627a69abf65eb71c549b5ef14a7a91adbcc3a"}, "url": "/docs/compare/?release=16.10#16.10-631fe2b5cc95bf19", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "dc692223d4e4409943580a9615f51575", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "防止 pg_dump 脚本被用于攻击执行恢复的用户", "evidence": {"same_day": true, "patch_ids": ["a88fbc1d59a5e722f1cb99fc8acd42be", "c340e675e09ada8e08edff5a1a3a3ae8"], "statement_hash": "0b4e588c95eb5bd3d79fce471c6627a69abf65eb71c549b5ef14a7a91adbcc3a"}, "url": "/docs/compare/?release=15.14#15.14-792ea6321c8a946b", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "2995efbedeebcfc1ca35284729dc63ca", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "防止 pg_dump 脚本被用于攻击执行恢复的用户", "evidence": {"same_day": true, "patch_ids": ["a88fbc1d59a5e722f1cb99fc8acd42be", "c340e675e09ada8e08edff5a1a3a3ae8"], "statement_hash": "0b4e588c95eb5bd3d79fce471c6627a69abf65eb71c549b5ef14a7a91adbcc3a"}, "url": "/docs/compare/?release=14.19#14.19-7d06a1d1ebfb29d7", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "caaaa341c31c9018981e72d6161a2801", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "防止 pg_dump 脚本被用于攻击执行恢复的用户", "evidence": {"same_day": true, "patch_ids": ["a88fbc1d59a5e722f1cb99fc8acd42be", "c340e675e09ada8e08edff5a1a3a3ae8"], "statement_hash": "0b4e588c95eb5bd3d79fce471c6627a69abf65eb71c549b5ef14a7a91adbcc3a"}, "url": "/docs/compare/?release=13.22#13.22-2c8737193994e3d6", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-85269ca5c1610b49", "cves": ["CVE-2012-0868", "CVE-2025-8715"], "html": "在 pg_dump 输出的注释中，将名称中包含的换行符转换为空格（Noah Misch）§
\n包含换行符的对象名称提供了向输出脚本中注入任意 SQL 命令的能力。（如果没有前述的修复，通过这种方式注入 psql 元命令也是可能的。）CVE-2012-0868 曾在当时修复了这类问题，但后续的工作重新引入了若干情况。
\nPostgreSQL 项目感谢 Noah Misch 报告此问题。（CVE-2025-8715）
", "text": "在 pg_dump 输出的注释中，将名称中包含的换行符转换为空格（Noah Misch）§ 包含换行符的对象名称提供了向输出脚本中注入任意 SQL 命令的能力。（如果没有前述的修复，通过这种方式注入 psql 元命令也是可能的。）CVE-2012-0868 曾在当时修复了这类问题，但后续的工作重新引入了若干情况。 PostgreSQL 项目感谢 Noah Misch 报告此问题。（CVE-2025-8715）", "title": "在 pg_dump 输出的注释中，将名称中包含的换行符转换为空格", "commits": ["9b92f115b"], "section": "变更", "category": "security", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "30ce83050e3aff1c62a9b3ad07e337356fd12d817f163759663e36e224930764", "section_path": ["变更"], "commit_groups": [["0f5838438", "13a67ce60", "2179e6005", "70693c645", "850caae60", "9751f934a", "9b92f115b"]], "identity_text": "Convert newlines to spaces in names included in comments in pg_dump output (Noah Misch) Object names containing newlines offered the ability to inject arbitrary SQL commands into the output script. (Without the preceding fix, injection of psql meta-commands would also be possible this way.) CVE-2012-0868 fixed this class of problem at the time, but later work reintroduced several cases. The PostgreSQL Project thanks Noah Misch for reporting this problem. (CVE-2025-8715)", "commit_aliases": ["0f5838438", "13a67ce60", "2179e6005", "70693c645", "850caae60", "9751f934a", "9b92f115b"], "source_commits": ["9b92f115b"], "source_entry_id": "17.6/changes/003", "db_id": "38111ed952ef48e4da5272e7c83e8a05", "patch_ids": ["c339acab7d9b8e62f0a32c0c18b2d7e4"], "statement_hash": "cb5a9cc437857a0caf2a82b5b88270031dd431a721fdd8641324b7e28d509258", "relations": [{"rule": 2, "type": "equivalent", "target": "37108a0558c6e7099facfb4c06a2343a", "evidence": {"same_day": true, "patch_ids": ["c339acab7d9b8e62f0a32c0c18b2d7e4"], "statement_hash": "cb5a9cc437857a0caf2a82b5b88270031dd431a721fdd8641324b7e28d509258"}}, {"rule": 2, "type": "equivalent", "target": "88e2718dcf7026885e58101ad68ad92b", "evidence": {"same_day": true, "patch_ids": ["c339acab7d9b8e62f0a32c0c18b2d7e4"], "statement_hash": "cb5a9cc437857a0caf2a82b5b88270031dd431a721fdd8641324b7e28d509258"}}, {"rule": 2, "type": "equivalent", "target": "e4409746da14b6ce48dbfc4198028b20", "evidence": {"same_day": true, "patch_ids": ["c339acab7d9b8e62f0a32c0c18b2d7e4"], "statement_hash": "cb5a9cc437857a0caf2a82b5b88270031dd431a721fdd8641324b7e28d509258"}}, {"rule": 2, "type": "equivalent", "target": "f51ac36aaada0528abd65e283dc38a35", "evidence": {"same_day": true, "patch_ids": ["c339acab7d9b8e62f0a32c0c18b2d7e4"], "statement_hash": "cb5a9cc437857a0caf2a82b5b88270031dd431a721fdd8641324b7e28d509258"}}], "version": "17.6", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "f51ac36aaada0528abd65e283dc38a35", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "在 pg_dump 输出的注释中，将名称中包含的换行符转换为空格", "evidence": {"same_day": true, "patch_ids": ["c339acab7d9b8e62f0a32c0c18b2d7e4"], "statement_hash": "cb5a9cc437857a0caf2a82b5b88270031dd431a721fdd8641324b7e28d509258"}, "url": "/docs/compare/?release=16.10#16.10-af4d8aac9b4f8e26", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "37108a0558c6e7099facfb4c06a2343a", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "在 pg_dump 输出的注释中，将名称中包含的换行符转换为空格", "evidence": {"same_day": true, "patch_ids": ["c339acab7d9b8e62f0a32c0c18b2d7e4"], "statement_hash": "cb5a9cc437857a0caf2a82b5b88270031dd431a721fdd8641324b7e28d509258"}, "url": "/docs/compare/?release=15.14#15.14-f808465a0b3d99e8", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "e4409746da14b6ce48dbfc4198028b20", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "在 pg_dump 输出的注释中，将名称中包含的换行符转换为空格", "evidence": {"same_day": true, "patch_ids": ["c339acab7d9b8e62f0a32c0c18b2d7e4"], "statement_hash": "cb5a9cc437857a0caf2a82b5b88270031dd431a721fdd8641324b7e28d509258"}, "url": "/docs/compare/?release=14.19#14.19-fb4152603ed81a9f", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "88e2718dcf7026885e58101ad68ad92b", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "在 pg_dump 输出的注释中，将名称中包含的换行符转换为空格", "evidence": {"same_day": true, "patch_ids": ["c339acab7d9b8e62f0a32c0c18b2d7e4"], "statement_hash": "cb5a9cc437857a0caf2a82b5b88270031dd431a721fdd8641324b7e28d509258"}, "url": "/docs/compare/?release=13.22#13.22-a726243ec1d439af", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-6264c438a439df10", "cves": [], "html": "修复 BRIN numeric_minmax_multi_ops 支持函数中的不正确距离计算（Peter Eisentraut、Tom Lane）§
在 64 位平台上结果有时是错误的，在 32 位平台上则是严重错误。这不会产生明显的故障，因为该逻辑仅用于选择如何将值合并到范围中；最差情况下索引会变得低效和膨胀。尽管如此，建议重建任何使用 numeric_minmax_multi_ops 操作符类的 BRIN 索引。
避免我们可接受的 XML 输入大小出现退化（Michael Paquier、Erik Wienhold）§ §
\n我们针对 libxml2 早期 2.13.x 版本中一个 bug 的变通方案使用了一个会拒绝超过 10MB 文本块的代码路径，而之前的代码不会这样做。那些早期版本在实际环境中大概已经不存在了，因此恢复到之前的代码。
", "text": "避免我们可接受的 XML 输入大小出现退化（Michael Paquier、Erik Wienhold）§ § 我们针对 libxml2 早期 2.13.x 版本中一个 bug 的变通方案使用了一个会拒绝超过 10MB 文本块的代码路径，而之前的代码不会这样做。那些早期版本在实际环境中大概已经不存在了，因此恢复到之前的代码。", "title": "避免我们可接受的 XML 输入大小出现退化", "commits": ["7571e0f6e", "fd4ad33fe"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "c0f561d53ca09a151d56704186a4c18e13b29c130cce8a83f0f73facff8f984b", "section_path": ["变更"], "commit_groups": [["0395464af", "0ffbd345e", "589d6e640", "637ead2e1", "6d5e493b4", "71c0921b6", "fd4ad33fe"], ["0928e18eb", "0ae824704", "7571e0f6e", "762c6d8d2", "902f92221", "cdcdabce5", "d5f014d89"]], "identity_text": "Avoid regression in the size of XML input that we will accept (Michael Paquier, Erik Wienhold) Our workaround for a bug in early 2.13.x releases of libxml2 made use of a code path that rejects text chunks exceeding 10MB, whereas the previous coding did not. Those early releases are presumably extinct in the wild by now, so revert to the previous coding.", "commit_aliases": ["0395464af", "0928e18eb", "0ae824704", "0ffbd345e", "589d6e640", "637ead2e1", "6d5e493b4", "71c0921b6", "7571e0f6e", "762c6d8d2", "902f92221", "cdcdabce5", "d5f014d89", "fd4ad33fe"], "source_commits": ["7571e0f6e", "fd4ad33fe"], "source_entry_id": "17.6/changes/005", "db_id": "bb2bd06d13098be6d2f716fc39bcebc1", "patch_ids": ["98252c90081e7e17af8a98af7237304d", "b287e22af912cdfb881024a69141d1d3"], "statement_hash": "df5a0eec4afc3cc17d7aae1477466e175f12a4b7662a499e03744c30e76fc313", "relations": [{"rule": 2, "type": "equivalent", "target": "0ee6aeae8fc928ce374749037900ae26", "evidence": {"same_day": true, "patch_ids": ["98252c90081e7e17af8a98af7237304d", "b287e22af912cdfb881024a69141d1d3"], "statement_hash": "df5a0eec4afc3cc17d7aae1477466e175f12a4b7662a499e03744c30e76fc313"}}, {"rule": 2, "type": "equivalent", "target": "1fde207d731da78f7ffa4b41ed55d84f", "evidence": {"same_day": true, "patch_ids": ["98252c90081e7e17af8a98af7237304d", "b287e22af912cdfb881024a69141d1d3"], "statement_hash": "df5a0eec4afc3cc17d7aae1477466e175f12a4b7662a499e03744c30e76fc313"}}, {"rule": 2, "type": "equivalent", "target": "6f0df2f7f9eaa8699c25d67daabf9b0f", "evidence": {"same_day": true, "patch_ids": ["98252c90081e7e17af8a98af7237304d", "b287e22af912cdfb881024a69141d1d3"], "statement_hash": "df5a0eec4afc3cc17d7aae1477466e175f12a4b7662a499e03744c30e76fc313"}}, {"rule": 2, "type": "equivalent", "target": "f0095d007a81a7cca2bd060e2fed3b13", "evidence": {"same_day": true, "patch_ids": ["98252c90081e7e17af8a98af7237304d", "b287e22af912cdfb881024a69141d1d3"], "statement_hash": "df5a0eec4afc3cc17d7aae1477466e175f12a4b7662a499e03744c30e76fc313"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "f0095d007a81a7cca2bd060e2fed3b13", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "避免我们可接受的 XML 输入大小出现退化", "evidence": {"same_day": true, "patch_ids": ["98252c90081e7e17af8a98af7237304d", "b287e22af912cdfb881024a69141d1d3"], "statement_hash": "df5a0eec4afc3cc17d7aae1477466e175f12a4b7662a499e03744c30e76fc313"}, "url": "/docs/compare/?release=16.10#16.10-e13cec0f22d647d2", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "6f0df2f7f9eaa8699c25d67daabf9b0f", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "避免我们可接受的 XML 输入大小出现退化", "evidence": {"same_day": true, "patch_ids": ["98252c90081e7e17af8a98af7237304d", "b287e22af912cdfb881024a69141d1d3"], "statement_hash": "df5a0eec4afc3cc17d7aae1477466e175f12a4b7662a499e03744c30e76fc313"}, "url": "/docs/compare/?release=15.14#15.14-e693a8762746a5b1", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "0ee6aeae8fc928ce374749037900ae26", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "避免我们可接受的 XML 输入大小出现退化", "evidence": {"same_day": true, "patch_ids": ["98252c90081e7e17af8a98af7237304d", "b287e22af912cdfb881024a69141d1d3"], "statement_hash": "df5a0eec4afc3cc17d7aae1477466e175f12a4b7662a499e03744c30e76fc313"}, "url": "/docs/compare/?release=14.19#14.19-43d78edde7b0cec8", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "1fde207d731da78f7ffa4b41ed55d84f", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "避免我们可接受的 XML 输入大小出现退化", "evidence": {"same_day": true, "patch_ids": ["98252c90081e7e17af8a98af7237304d", "b287e22af912cdfb881024a69141d1d3"], "statement_hash": "df5a0eec4afc3cc17d7aae1477466e175f12a4b7662a499e03744c30e76fc313"}, "url": "/docs/compare/?release=13.22#13.22-66f9371c0bdfa68c", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-7898d9ffd2ac5df8", "cves": [], "html": "修复 MERGE 在并发更新下的问题（Dean Rasheed）§
如果 CTE 内部的 MERGE 尝试对带有 BEFORE ROW 触发器的表执行更新或删除，而并发的 UPDATE 或 DELETE 又修改了目标行，那么 MERGE 命令将会失败（在更新动作情况下会崩溃，而在删除动作情况下则可能执行错误的动作）。
修复向普通继承父表执行 MERGE 的问题（Dean Rasheed）§
向这类目标表插入数据时，可能因为未能正确处理 WITH CHECK OPTION 和 RETURNING 动作而崩溃，或产生错误的查询结果。
允许具有语句级触发器的表成为分区或继承子表（Etsuro Fujita）§
\n我们不允许分区或继承子表拥有带有转换表的行级触发器，因为对整个继承树的操作需要为每个这样的子表维护单独的转换表。但这个问题不适用于语句级触发器，因为只有父表的语句级触发器会被触发。检查现有表是否可以成为分区或继承子表的代码却错误地拒绝了两种触发器。
", "text": "允许具有语句级触发器的表成为分区或继承子表（Etsuro Fujita）§ 我们不允许分区或继承子表拥有带有转换表的行级触发器，因为对整个继承树的操作需要为每个这样的子表维护单独的转换表。但这个问题不适用于语句级触发器，因为只有父表的语句级触发器会被触发。检查现有表是否可以成为分区或继承子表的代码却错误地拒绝了两种触发器。", "title": "允许具有语句级触发器的表成为分区或继承子表", "commits": ["e028ce911"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "5f8cff097160a3bad450b89036e5b4b28f4886c628d67069060758bbcb8d3721", "section_path": ["变更"], "commit_groups": [["3863c6fb6", "73eb6afa1", "9e63f83a7", "afdb4cde1", "bba6a6faf", "e028ce911", "f39a7f32a"]], "identity_text": "Allow tables with statement-level triggers to become partitions or inheritance children (Etsuro Fujita) We do not allow partitions or inheritance child tables to have row-level triggers with transition tables, because an operation on the whole inheritance tree would need to maintain a separate transition table for each such child table. But that problem does not apply for statement-level triggers, because only the parent's statement-level triggers will be fired. The code that checks whether an existing table can become a partition or inheritance child nonetheless rejected both kinds of trigger.", "commit_aliases": ["3863c6fb6", "73eb6afa1", "9e63f83a7", "afdb4cde1", "bba6a6faf", "e028ce911", "f39a7f32a"], "source_commits": ["e028ce911"], "source_entry_id": "17.6/changes/008", "db_id": "f5801d51a971cf08cdb8c06a0637d94e", "patch_ids": ["ec5be3f8bfa509ddb1d8966ad9ecc1af"], "statement_hash": "0082e9e8b3fbe6a713df8db4021468ed4e0c645dd447c14f56a9e72d025dff7f", "relations": [{"rule": 2, "type": "equivalent", "target": "420807e2c65cfb2f35b9d98ab03fd35a", "evidence": {"same_day": true, "patch_ids": ["ec5be3f8bfa509ddb1d8966ad9ecc1af"], "statement_hash": "0082e9e8b3fbe6a713df8db4021468ed4e0c645dd447c14f56a9e72d025dff7f"}}, {"rule": 2, "type": "equivalent", "target": "46c9c9414aeb1e1d548fe9e14dd2586c", "evidence": {"same_day": true, "patch_ids": ["ec5be3f8bfa509ddb1d8966ad9ecc1af"], "statement_hash": "0082e9e8b3fbe6a713df8db4021468ed4e0c645dd447c14f56a9e72d025dff7f"}}, {"rule": 2, "type": "equivalent", "target": "9c539692e1ae384a68ec089b701c3ae5", "evidence": {"same_day": true, "patch_ids": ["ec5be3f8bfa509ddb1d8966ad9ecc1af"], "statement_hash": "0082e9e8b3fbe6a713df8db4021468ed4e0c645dd447c14f56a9e72d025dff7f"}}, {"rule": 2, "type": "equivalent", "target": "aca9c17a807140f57d39cd64e3b60dcd", "evidence": {"same_day": true, "patch_ids": ["ec5be3f8bfa509ddb1d8966ad9ecc1af"], "statement_hash": "0082e9e8b3fbe6a713df8db4021468ed4e0c645dd447c14f56a9e72d025dff7f"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "46c9c9414aeb1e1d548fe9e14dd2586c", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "允许具有语句级触发器的表成为分区或继承子表", "evidence": {"same_day": true, "patch_ids": ["ec5be3f8bfa509ddb1d8966ad9ecc1af"], "statement_hash": "0082e9e8b3fbe6a713df8db4021468ed4e0c645dd447c14f56a9e72d025dff7f"}, "url": "/docs/compare/?release=16.10#16.10-b7b247e33c4791f3", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "420807e2c65cfb2f35b9d98ab03fd35a", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "允许具有语句级触发器的表成为分区或继承子表", "evidence": {"same_day": true, "patch_ids": ["ec5be3f8bfa509ddb1d8966ad9ecc1af"], "statement_hash": "0082e9e8b3fbe6a713df8db4021468ed4e0c645dd447c14f56a9e72d025dff7f"}, "url": "/docs/compare/?release=15.14#15.14-607bfb1bab951bc7", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "9c539692e1ae384a68ec089b701c3ae5", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "允许具有语句级触发器的表成为分区或继承子表", "evidence": {"same_day": true, "patch_ids": ["ec5be3f8bfa509ddb1d8966ad9ecc1af"], "statement_hash": "0082e9e8b3fbe6a713df8db4021468ed4e0c645dd447c14f56a9e72d025dff7f"}, "url": "/docs/compare/?release=14.19#14.19-feec18122edb5081", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "aca9c17a807140f57d39cd64e3b60dcd", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "允许具有语句级触发器的表成为分区或继承子表", "evidence": {"same_day": true, "patch_ids": ["ec5be3f8bfa509ddb1d8966ad9ecc1af"], "statement_hash": "0082e9e8b3fbe6a713df8db4021468ed4e0c645dd447c14f56a9e72d025dff7f"}, "url": "/docs/compare/?release=13.22#13.22-df71954a5ef41ef1", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-271f6d5d0c5205b8", "cves": [], "html": "禁止从外部子表收集转换元组（Etsuro Fujita）§
\n我们不支持在外部表上使用带有转换表的触发器。但是，分区或继承子表是外部表的情况被忽略了。如果父表有这样的触发器，就会从外部子表收集到不正确的转换元组。现在改为抛出错误，报告该情况不被支持。
", "text": "禁止从外部子表收集转换元组（Etsuro Fujita）§ 我们不支持在外部表上使用带有转换表的触发器。但是，分区或继承子表是外部表的情况被忽略了。如果父表有这样的触发器，就会从外部子表收集到不正确的转换元组。现在改为抛出错误，报告该情况不被支持。", "title": "禁止从外部子表收集转换元组", "commits": ["9048a83c7"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "1f985f841006f545e464cd2c36387c101195a06fc650be75a9c26b7d1d594c7c", "section_path": ["变更"], "commit_groups": [["62a1211d3", "9048a83c7", "9cca445df", "b6641f7b0", "ce8817022", "d642d2306", "e94fc1a8a"]], "identity_text": "Disallow collecting transition tuples from child foreign tables (Etsuro Fujita) We do not support triggers with transition tables on foreign tables. However, the case of a partition or inheritance child that is a foreign table was overlooked. If the parent has such a trigger, incorrect transition tuples were collected from the foreign child. Instead throw an error, reporting that the case is not supported.", "commit_aliases": ["62a1211d3", "9048a83c7", "9cca445df", "b6641f7b0", "ce8817022", "d642d2306", "e94fc1a8a"], "source_commits": ["9048a83c7"], "source_entry_id": "17.6/changes/009", "db_id": "a92bdec02c5cc11013deebd80c74b0eb", "patch_ids": ["5a0b704f17af1d8b1003c9b05f2986c2"], "statement_hash": "656e8175e4a93a3a0588bc41f2185d223eea6d7b2a2104d8226412e279416f63", "relations": [{"rule": 2, "type": "equivalent", "target": "2979e7070342fffc5ad3b796f44b4bc6", "evidence": {"same_day": true, "patch_ids": ["5a0b704f17af1d8b1003c9b05f2986c2"], "statement_hash": "656e8175e4a93a3a0588bc41f2185d223eea6d7b2a2104d8226412e279416f63"}}, {"rule": 2, "type": "equivalent", "target": "a1e77a42db5570cb12c20d1010246a22", "evidence": {"same_day": true, "patch_ids": ["5a0b704f17af1d8b1003c9b05f2986c2"], "statement_hash": "656e8175e4a93a3a0588bc41f2185d223eea6d7b2a2104d8226412e279416f63"}}, {"rule": 2, "type": "equivalent", "target": "ab769326d638153e0ea7ef5f3a2dcb49", "evidence": {"same_day": true, "patch_ids": ["5a0b704f17af1d8b1003c9b05f2986c2"], "statement_hash": "656e8175e4a93a3a0588bc41f2185d223eea6d7b2a2104d8226412e279416f63"}}, {"rule": 2, "type": "equivalent", "target": "d139e318081b10609507f4cac88f0f8a", "evidence": {"same_day": true, "patch_ids": ["5a0b704f17af1d8b1003c9b05f2986c2"], "statement_hash": "656e8175e4a93a3a0588bc41f2185d223eea6d7b2a2104d8226412e279416f63"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "ab769326d638153e0ea7ef5f3a2dcb49", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "禁止从外部子表收集转换元组", "evidence": {"same_day": true, "patch_ids": ["5a0b704f17af1d8b1003c9b05f2986c2"], "statement_hash": "656e8175e4a93a3a0588bc41f2185d223eea6d7b2a2104d8226412e279416f63"}, "url": "/docs/compare/?release=16.10#16.10-17bba33bfae8d9d4", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "a1e77a42db5570cb12c20d1010246a22", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "禁止从外部子表收集转换元组", "evidence": {"same_day": true, "patch_ids": ["5a0b704f17af1d8b1003c9b05f2986c2"], "statement_hash": "656e8175e4a93a3a0588bc41f2185d223eea6d7b2a2104d8226412e279416f63"}, "url": "/docs/compare/?release=15.14#15.14-f019be1c276e12ad", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "d139e318081b10609507f4cac88f0f8a", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "禁止从外部子表收集转换元组", "evidence": {"same_day": true, "patch_ids": ["5a0b704f17af1d8b1003c9b05f2986c2"], "statement_hash": "656e8175e4a93a3a0588bc41f2185d223eea6d7b2a2104d8226412e279416f63"}, "url": "/docs/compare/?release=14.19#14.19-1ab1051a32528a44", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "2979e7070342fffc5ad3b796f44b4bc6", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "禁止从外部子表收集转换元组", "evidence": {"same_day": true, "patch_ids": ["5a0b704f17af1d8b1003c9b05f2986c2"], "statement_hash": "656e8175e4a93a3a0588bc41f2185d223eea6d7b2a2104d8226412e279416f63"}, "url": "/docs/compare/?release=13.22#13.22-81ac4c617cec1e50", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-af53d5f6a485d2ec", "cves": [], "html": "允许重置具有保留前缀的未知自定义参数（Nathan Bossart）§
\n之前，如果使用 ALTER DATABASE/ROLE/SYSTEM 存储了参数设置，当该参数未知但具有保留前缀时，存储的设置无法被删除。这种情况可能在扩展曾经有一个参数但该参数在升级中被删除时出现。
修复 ALTER SUBSCRIPTION ... DROP PUBLICATION 期间的潜在死锁问题（Ajin Cherian）§
确保服务器进程在复制源删除期间以一致的顺序获取系统目录锁。
", "text": "修复 ALTER SUBSCRIPTION ... DROP PUBLICATION 期间的潜在死锁问题（Ajin Cherian）§ 确保服务器进程在复制源删除期间以一致的顺序获取系统目录锁。", "title": "修复 ALTER SUBSCRIPTION ... DROP PUBLICATION 期间的潜在死锁问题", "commits": ["8c298324a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "68f5ac71f3db196c6e517a55d22bd322885007151c05d08a11dfb2393517f366", "section_path": ["变更"], "commit_groups": [["2ab2d6f97", "41fb3f51c", "434d2d147", "8c298324a", "adfd80219", "d9f01a287"]], "identity_text": "Fix a potential deadlock during ALTER SUBSCRIPTION ... DROP PUBLICATION (Ajin Cherian) Ensure that server processes acquire catalog locks in a consistent order during replication origin drops.", "commit_aliases": ["2ab2d6f97", "41fb3f51c", "434d2d147", "8c298324a", "adfd80219", "d9f01a287"], "source_commits": ["8c298324a"], "source_entry_id": "17.6/changes/011", "db_id": "18c5f105597d23e166fd08e03cf49656", "patch_ids": ["143bab990487b546b1c946801959bb56"], "statement_hash": "50f73d9f0f29f1a2f239e34133545b82b3517495807dae45806b36358c6eb934", "relations": [{"rule": 2, "type": "equivalent", "target": "119e92e0c7e4ba7b3831fe250dba85c1", "evidence": {"same_day": true, "patch_ids": ["143bab990487b546b1c946801959bb56"], "statement_hash": "50f73d9f0f29f1a2f239e34133545b82b3517495807dae45806b36358c6eb934"}}, {"rule": 2, "type": "equivalent", "target": "1de0d029ccf2648086aaccf4f49f5ddc", "evidence": {"same_day": true, "patch_ids": ["143bab990487b546b1c946801959bb56"], "statement_hash": "50f73d9f0f29f1a2f239e34133545b82b3517495807dae45806b36358c6eb934"}}, {"rule": 2, "type": "equivalent", "target": "4f811c946e4b4a6a82a76490865d47b6", "evidence": {"same_day": true, "patch_ids": ["143bab990487b546b1c946801959bb56"], "statement_hash": "50f73d9f0f29f1a2f239e34133545b82b3517495807dae45806b36358c6eb934"}}], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "119e92e0c7e4ba7b3831fe250dba85c1", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "修复 ALTER SUBSCRIPTION ... DROP PUBLICATION 期间的潜在死锁问题", "evidence": {"same_day": true, "patch_ids": ["143bab990487b546b1c946801959bb56"], "statement_hash": "50f73d9f0f29f1a2f239e34133545b82b3517495807dae45806b36358c6eb934"}, "url": "/docs/compare/?release=16.10#16.10-9015eff1dde180a1", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "1de0d029ccf2648086aaccf4f49f5ddc", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "修复 ALTER SUBSCRIPTION ... DROP PUBLICATION 期间的潜在死锁问题", "evidence": {"same_day": true, "patch_ids": ["143bab990487b546b1c946801959bb56"], "statement_hash": "50f73d9f0f29f1a2f239e34133545b82b3517495807dae45806b36358c6eb934"}, "url": "/docs/compare/?release=15.14#15.14-37fb0e0ef6a2eeea", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "4f811c946e4b4a6a82a76490865d47b6", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "修复 ALTER SUBSCRIPTION ... DROP PUBLICATION 期间的潜在死锁问题", "evidence": {"same_day": true, "patch_ids": ["143bab990487b546b1c946801959bb56"], "statement_hash": "50f73d9f0f29f1a2f239e34133545b82b3517495807dae45806b36358c6eb934"}, "url": "/docs/compare/?release=14.19#14.19-47bd9af427539628", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}]}, {"id": "17.6-13e24172d846d026", "cves": [], "html": "缩短创建名称冲突索引时的竞争窗口（Tom Lane）§
\n在为索引选择自动生成的名称时，除了完全有效的 pg_class 行之外，也要避免与尚未提交的 pg_class 行发生冲突。这样可以避免在并发 CREATE INDEX 尚处于填充索引过程中，或虽已完成但其事务尚未提交时，意外选中同一个名称。虽然仍然存在一个出问题的窗口，但其长度仅限于验证新索引参数并插入其 pg_class 行所需的时间。
防止在单条命令对多个表执行 VACUUM 的某些情况下使用错误的选项（Nathan Bossart, Michael Paquier）§
一个表的 TRUNCATE 和 INDEX_CLEANUP 选项可能会被错误地应用到其他表上。
确保在 vacuum 没有索引的表时，表的自由空间映射能及时更新（Masahiko Sawada）§
\n先前的一项优化会导致这类表有时跳过 FSM vacuum。
", "text": "确保在 vacuum 没有索引的表时，表的自由空间映射能及时更新（Masahiko Sawada）§ 先前的一项优化会导致这类表有时跳过 FSM vacuum。", "title": "确保在 vacuum 没有索引的表时，表的自由空间映射能及时更新", "commits": ["792238c8b"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "067d4b65b917ba12ad9dd12a4b27c5b6dfda4e9011822d240c51d726f670a35f", "section_path": ["变更"], "commit_groups": [["3811ca360", "792238c8b", "7c6ededac"]], "identity_text": "Ensure that the table's free-space map is updated in a timely way when vacuuming a table that has no indexes (Masahiko Sawada) A previous optimization caused FSM vacuuming to sometimes be skipped for such tables.", "commit_aliases": ["3811ca360", "792238c8b", "7c6ededac"], "source_commits": ["792238c8b"], "source_entry_id": "17.6/changes/014", "db_id": "208b51b013b261d7c941e50bdfdd5399", "patch_ids": ["2898fd9eedaa08c9dd21335e7e065b8a"], "statement_hash": "b4f70551b2a0be0dbbef80a1e994056d3d171913ad0448ff4a6224b2aa30e34e", "relations": [], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.6-483f40f2905262cc", "cves": [], "html": "修复 SIMILAR TO 正则表达式中字符类的处理问题（Laurenz Albe）§ §
将 SIMILAR TO 模式匹配表达式转换为 POSIX 风格正则表达式的代码，没有考虑到方括号可以嵌套。例如，在 [[:alpha:]%_] 这样的模式中，代码把 % 和 _ 字符当成了元字符，但它们本应是字面量。
在反解析查询时，始终为 FETCH FIRST 子句中的表达式加上括号（Heikki Linnakangas）§ §expression ROWS WITH TIES
这可以避免某些情况下反解析结果在语法上无效。
", "text": "在反解析查询时，始终为 FETCH FIRST expression ROWS WITH TIES 子句中的表达式加上括号（Heikki Linnakangas）§ § 这可以避免某些情况下反解析结果在语法上无效。", "title": "在反解析查询时，始终为 FETCH FIRST expression ROWS WITH TIES 子句中的表达式加上括号", "commits": ["54c05292b", "a4da7b0cf"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "e7621f8bcd9f45e102c1cc7c4514efcf9aef26cffea5af393b8dab8ba99af779", "section_path": ["变更"], "commit_groups": [["0420b24fe", "29f7ce6fe", "54c05292b", "72fe74ca5", "7ee00918f", "92a9ba3b9"], ["558ea446a", "a4da7b0cf", "cbf53e2b8"]], "identity_text": "When deparsing queries, always add parentheses around the expression in FETCH FIRST expression ROWS WITH TIES clauses (Heikki Linnakangas) This avoids some cases where the deparsed result wasn't syntactically valid.", "commit_aliases": ["0420b24fe", "29f7ce6fe", "54c05292b", "558ea446a", "72fe74ca5", "7ee00918f", "92a9ba3b9", "a4da7b0cf", "cbf53e2b8"], "source_commits": ["54c05292b", "a4da7b0cf"], "source_entry_id": "17.6/changes/016", "db_id": "cd001a18add755b7d0ccbcd5d91d460a", "patch_ids": ["da6a24d2406b7c97b728c6ff62b21709", "e2f0940f582bbc106392b2bf98063cbb"], "statement_hash": "5e5ec36a3cf13bab1d54c4a81ac7e4e242aa243fade253713675c900924b1f0b", "relations": [{"rule": 2, "type": "equivalent", "target": "2c53c54fdf068bc21cac5e41d449e779", "evidence": {"same_day": true, "patch_ids": ["da6a24d2406b7c97b728c6ff62b21709", "e2f0940f582bbc106392b2bf98063cbb"], "statement_hash": "5e5ec36a3cf13bab1d54c4a81ac7e4e242aa243fade253713675c900924b1f0b"}}, {"rule": 2, "type": "equivalent", "target": "4cbd753646a1fc3438685a6ec808ae57", "evidence": {"same_day": true, "patch_ids": ["da6a24d2406b7c97b728c6ff62b21709", "e2f0940f582bbc106392b2bf98063cbb"], "statement_hash": "5e5ec36a3cf13bab1d54c4a81ac7e4e242aa243fade253713675c900924b1f0b"}}, {"rule": 2, "type": "equivalent", "target": "ac2730f6a1011c38915f3f51fed5e23c", "evidence": {"same_day": true, "patch_ids": ["da6a24d2406b7c97b728c6ff62b21709", "e2f0940f582bbc106392b2bf98063cbb"], "statement_hash": "5e5ec36a3cf13bab1d54c4a81ac7e4e242aa243fade253713675c900924b1f0b"}}, {"rule": 2, "type": "equivalent", "target": "c700983864cc9535ad4ffcda69d8552b", "evidence": {"same_day": true, "patch_ids": ["da6a24d2406b7c97b728c6ff62b21709", "e2f0940f582bbc106392b2bf98063cbb"], "statement_hash": "5e5ec36a3cf13bab1d54c4a81ac7e4e242aa243fade253713675c900924b1f0b"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "4cbd753646a1fc3438685a6ec808ae57", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "在反解析查询时，始终为 FETCH FIRST expression ROWS WITH TIES 子句中的表达式加上括号", "evidence": {"same_day": true, "patch_ids": ["da6a24d2406b7c97b728c6ff62b21709", "e2f0940f582bbc106392b2bf98063cbb"], "statement_hash": "5e5ec36a3cf13bab1d54c4a81ac7e4e242aa243fade253713675c900924b1f0b"}, "url": "/docs/compare/?release=16.10#16.10-b5721ac2f2e16db7", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "c700983864cc9535ad4ffcda69d8552b", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "在反解析查询时，始终在 FETCH FIRST expression ROWS WITH TIES 子句中的表达式周围添加括号", "evidence": {"same_day": true, "patch_ids": ["da6a24d2406b7c97b728c6ff62b21709", "e2f0940f582bbc106392b2bf98063cbb"], "statement_hash": "5e5ec36a3cf13bab1d54c4a81ac7e4e242aa243fade253713675c900924b1f0b"}, "url": "/docs/compare/?release=15.14#15.14-99b7043aab7b8b2f", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "ac2730f6a1011c38915f3f51fed5e23c", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "在反解析查询时，始终在 FETCH FIRST expression ROWS WITH TIES 子句中的表达式周围添加括号", "evidence": {"same_day": true, "patch_ids": ["da6a24d2406b7c97b728c6ff62b21709", "e2f0940f582bbc106392b2bf98063cbb"], "statement_hash": "5e5ec36a3cf13bab1d54c4a81ac7e4e242aa243fade253713675c900924b1f0b"}, "url": "/docs/compare/?release=14.19#14.19-6c61789bdaa33b27", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "2c53c54fdf068bc21cac5e41d449e779", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "在反解析查询时，始终在 FETCH FIRST expression ROWS WITH TIES 子句中的表达式周围添加括号", "evidence": {"same_day": true, "patch_ids": ["da6a24d2406b7c97b728c6ff62b21709", "e2f0940f582bbc106392b2bf98063cbb"], "statement_hash": "5e5ec36a3cf13bab1d54c4a81ac7e4e242aa243fade253713675c900924b1f0b"}, "url": "/docs/compare/?release=13.22#13.22-2a35de9d95005e82", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-8c460f992a0ce3be", "cves": [], "html": "限制检查点进程的 fsync 请求队列大小（Alexander Korotkov、Xuneng Zhou）§ §
\n在 shared_buffers 设置非常大时，检查点进程可能尝试为 fsync 请求分配超过 1GB 的内存，导致失败并进入无限循环。限制队列大小以防止此情况发生。
避免在读取部分写入的 WAL 记录时逻辑解码出现无限等待（Vignesh C）§
\n如果服务器在写入跨越多个页面的 WAL 记录的第一部分后崩溃，后续对该 WAL 流的逻辑解码将等待下一个 WAL 页面上的数据到来。如果服务器此时处于空闲状态，这可能永远不会发生。
", "text": "避免在读取部分写入的 WAL 记录时逻辑解码出现无限等待（Vignesh C）§ 如果服务器在写入跨越多个页面的 WAL 记录的第一部分后崩溃，后续对该 WAL 流的逻辑解码将等待下一个 WAL 页面上的数据到来。如果服务器此时处于空闲状态，这可能永远不会发生。", "title": "避免在读取部分写入的 WAL 记录时逻辑解码出现无限等待", "commits": ["c9f4e7520"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "2978dc66d98b8bfedefcd8aaaf052723956f4dcd91cd3b8ef7e88d0f0cbcc135", "section_path": ["变更"], "commit_groups": [["5449d5b7a", "762f352ca", "9f270f48f", "b485e1c89", "bedfdb85b", "c9f4e7520", "d3917d8f1"]], "identity_text": "Avoid infinite wait in logical decoding when reading a partially-written WAL record (Vignesh C) If the server crashes after writing the first part of a WAL record that would span multiple pages, subsequent logical decoding of the WAL stream would wait for data to arrive on the next WAL page. That might never happen if the server is now idle.", "commit_aliases": ["5449d5b7a", "762f352ca", "9f270f48f", "b485e1c89", "bedfdb85b", "c9f4e7520", "d3917d8f1"], "source_commits": ["c9f4e7520"], "source_entry_id": "17.6/changes/018", "db_id": "93c9113e8027956fcabdf155f8f75e4e", "patch_ids": ["144ef66a83178a770de8fdb2ebc4a8ca"], "statement_hash": "36121084c99a58bdd2789e976cd801346c4feca0c2b1726e05ff531a6a74e2e9", "relations": [{"rule": 2, "type": "equivalent", "target": "22e9d4de76eb1e464e3ec27fe97dd92f", "evidence": {"same_day": true, "patch_ids": ["144ef66a83178a770de8fdb2ebc4a8ca"], "statement_hash": "36121084c99a58bdd2789e976cd801346c4feca0c2b1726e05ff531a6a74e2e9"}}, {"rule": 2, "type": "equivalent", "target": "58b07f22664eda599d8b66bf542f2279", "evidence": {"same_day": true, "patch_ids": ["144ef66a83178a770de8fdb2ebc4a8ca"], "statement_hash": "36121084c99a58bdd2789e976cd801346c4feca0c2b1726e05ff531a6a74e2e9"}}, {"rule": 2, "type": "equivalent", "target": "d765a2454362eae947f4e8fb58437956", "evidence": {"same_day": true, "patch_ids": ["144ef66a83178a770de8fdb2ebc4a8ca"], "statement_hash": "36121084c99a58bdd2789e976cd801346c4feca0c2b1726e05ff531a6a74e2e9"}}, {"rule": 2, "type": "equivalent", "target": "ee8d9b40c53ea8c4169fbdeb6a702b0c", "evidence": {"same_day": true, "patch_ids": ["144ef66a83178a770de8fdb2ebc4a8ca"], "statement_hash": "36121084c99a58bdd2789e976cd801346c4feca0c2b1726e05ff531a6a74e2e9"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "d765a2454362eae947f4e8fb58437956", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "避免在读取部分写入的 WAL 记录时逻辑解码出现无限等待", "evidence": {"same_day": true, "patch_ids": ["144ef66a83178a770de8fdb2ebc4a8ca"], "statement_hash": "36121084c99a58bdd2789e976cd801346c4feca0c2b1726e05ff531a6a74e2e9"}, "url": "/docs/compare/?release=16.10#16.10-c837113a33e19cfe", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "22e9d4de76eb1e464e3ec27fe97dd92f", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "避免在读取部分写入的 WAL 记录时逻辑解码出现无限等待", "evidence": {"same_day": true, "patch_ids": ["144ef66a83178a770de8fdb2ebc4a8ca"], "statement_hash": "36121084c99a58bdd2789e976cd801346c4feca0c2b1726e05ff531a6a74e2e9"}, "url": "/docs/compare/?release=15.14#15.14-d41948712b1e27a7", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "ee8d9b40c53ea8c4169fbdeb6a702b0c", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "避免在读取部分写入的 WAL 记录时逻辑解码出现无限等待", "evidence": {"same_day": true, "patch_ids": ["144ef66a83178a770de8fdb2ebc4a8ca"], "statement_hash": "36121084c99a58bdd2789e976cd801346c4feca0c2b1726e05ff531a6a74e2e9"}, "url": "/docs/compare/?release=14.19#14.19-81c556306da153c8", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "58b07f22664eda599d8b66bf542f2279", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "避免在读取部分写入的 WAL 记录时逻辑解码出现无限等待", "evidence": {"same_day": true, "patch_ids": ["144ef66a83178a770de8fdb2ebc4a8ca"], "statement_hash": "36121084c99a58bdd2789e976cd801346c4feca0c2b1726e05ff531a6a74e2e9"}, "url": "/docs/compare/?release=13.22#13.22-9aa3ca20baea6a38", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-54d60f94669505c0", "cves": [], "html": "修复 MultiXactOffsetSLRU 和 MultiXactMemberSLRU 的 LWLock 名称拼写不一致问题（Bertrand Drouvot）§
这导致 pg_wait_events 和 pg_stat_activity 中显示的等待事件名称不同，可能破坏连接这两个视图的监控查询。
修复 ACL 字符串中角色名称引用的不一致问题（Tom Lane）§
\n之前的引用规则是与区域设置相关的，这在跨安装传输 aclitem 值时可能导致可移植性问题。（pg_dump 不会这样做，但其他工具可能会。）为确保一致性，始终在 aclitem 输出中引用非 ASCII 字符；但为了保持向后兼容性，在 aclitem 输入期间从不要求必须引用它们。
拒绝在关系选项和外部数据选项名称中使用等号（=）（Tom Lane）§
这类选项名称看不出有什么明确用途，而且允许它们会在存储表示中引入歧义。
", "text": "拒绝在关系选项和外部数据选项名称中使用等号（=）（Tom Lane）§ 这类选项名称看不出有什么明确用途，而且允许它们会在存储表示中引入歧义。", "title": "拒绝在关系选项和外部数据选项名称中使用等号（=）", "commits": ["d4046125d"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "c2cdf3f874002a3d10856817ae26604b728bd10ccf17e944b585c04c41a4841a", "section_path": ["变更"], "commit_groups": [["aa87f69c0", "ab758ec4d", "cd31eaaeb", "d4046125d", "e76097124", "eb4234647"]], "identity_text": "Reject equal signs (=) in the names of relation options and foreign-data options (Tom Lane) There's no evident use-case for option names like this, and allowing them creates ambiguity in the stored representation.", "commit_aliases": ["aa87f69c0", "ab758ec4d", "cd31eaaeb", "d4046125d", "e76097124", "eb4234647"], "source_commits": ["d4046125d"], "source_entry_id": "17.6/changes/021", "db_id": "ac49b5d91d6c372b4c08d08948f00a7f", "patch_ids": ["5cfa9a91458d8bf74a558cf8f029513d"], "statement_hash": "8330bbf241cac6f42857e63ccc59da91cb6130bb86df977a0a58ad80a4f8379c", "relations": [{"rule": 2, "type": "equivalent", "target": "2b2049899acbe82941a9b3346c211827", "evidence": {"same_day": true, "patch_ids": ["5cfa9a91458d8bf74a558cf8f029513d"], "statement_hash": "8330bbf241cac6f42857e63ccc59da91cb6130bb86df977a0a58ad80a4f8379c"}}, {"rule": 2, "type": "equivalent", "target": "378e12ec8d1b50d306d5e81833b0e06b", "evidence": {"same_day": true, "patch_ids": ["5cfa9a91458d8bf74a558cf8f029513d"], "statement_hash": "8330bbf241cac6f42857e63ccc59da91cb6130bb86df977a0a58ad80a4f8379c"}}, {"rule": 2, "type": "equivalent", "target": "551cbede924847bceddaf0ffd39f78ad", "evidence": {"same_day": true, "patch_ids": ["5cfa9a91458d8bf74a558cf8f029513d"], "statement_hash": "8330bbf241cac6f42857e63ccc59da91cb6130bb86df977a0a58ad80a4f8379c"}}, {"rule": 2, "type": "equivalent", "target": "cce62d5f78858c2cfb840afd0ccc84d4", "evidence": {"same_day": true, "patch_ids": ["5cfa9a91458d8bf74a558cf8f029513d"], "statement_hash": "8330bbf241cac6f42857e63ccc59da91cb6130bb86df977a0a58ad80a4f8379c"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "2b2049899acbe82941a9b3346c211827", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "拒绝在关系选项和外部数据选项名称中使用等号（=）", "evidence": {"same_day": true, "patch_ids": ["5cfa9a91458d8bf74a558cf8f029513d"], "statement_hash": "8330bbf241cac6f42857e63ccc59da91cb6130bb86df977a0a58ad80a4f8379c"}, "url": "/docs/compare/?release=16.10#16.10-0a15889291ed693e", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "cce62d5f78858c2cfb840afd0ccc84d4", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "拒绝在关系选项和外部数据选项名称中使用等号（=）", "evidence": {"same_day": true, "patch_ids": ["5cfa9a91458d8bf74a558cf8f029513d"], "statement_hash": "8330bbf241cac6f42857e63ccc59da91cb6130bb86df977a0a58ad80a4f8379c"}, "url": "/docs/compare/?release=15.14#15.14-0a15889291ed693e", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "551cbede924847bceddaf0ffd39f78ad", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "拒绝在关系选项和外部数据选项名称中使用等号（=）", "evidence": {"same_day": true, "patch_ids": ["5cfa9a91458d8bf74a558cf8f029513d"], "statement_hash": "8330bbf241cac6f42857e63ccc59da91cb6130bb86df977a0a58ad80a4f8379c"}, "url": "/docs/compare/?release=14.19#14.19-0a15889291ed693e", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "378e12ec8d1b50d306d5e81833b0e06b", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "拒绝在关系选项和外部数据选项的名称中使用等号（=）", "evidence": {"same_day": true, "patch_ids": ["5cfa9a91458d8bf74a558cf8f029513d"], "statement_hash": "8330bbf241cac6f42857e63ccc59da91cb6130bb86df977a0a58ad80a4f8379c"}, "url": "/docs/compare/?release=13.22#13.22-6240afb0d3c4527b", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-370cfe9e2188d59f", "cves": [], "html": "修复 LZ4 压缩归档数据可能不正确的解压缩问题（Mikhail Gribkov）§
\n此错误似乎仅在输入数据不太可压缩时才会出现，这可能解释了它为何未被发现。
", "text": "修复 LZ4 压缩归档数据可能不正确的解压缩问题（Mikhail Gribkov）§ 此错误似乎仅在输入数据不太可压缩时才会出现，这可能解释了它为何未被发现。", "title": "修复 LZ4 压缩归档数据可能不正确的解压缩问题", "commits": ["074003431"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "6a4bcfe216153f5b0afb910317286be5f6c187f7c390093ebee9da218612eb59", "section_path": ["变更"], "commit_groups": [["074003431", "3369a3b49", "5c639523f", "d09d13793", "d44efe87e"]], "identity_text": "Fix potentially-incorrect decompression of LZ4-compressed archive data (Mikhail Gribkov) This error seems to manifest only with not-very-compressible input data, which may explain why it escaped detection.", "commit_aliases": ["074003431", "3369a3b49", "5c639523f", "d09d13793", "d44efe87e"], "source_commits": ["074003431"], "source_entry_id": "17.6/changes/022", "db_id": "b302ecfbe05e1aba6c03f7aba1e86c6d", "patch_ids": ["775da154647809dc3f3016f20f0b14f2"], "statement_hash": "c6a44e7cb11bf105bc2b48549a2b4be62507a216f2eb446de5c8984cb409b506", "relations": [{"rule": 2, "type": "equivalent", "target": "5e0259fead17b9b318a6394d1f6aaf19", "evidence": {"same_day": true, "patch_ids": ["775da154647809dc3f3016f20f0b14f2"], "statement_hash": "c6a44e7cb11bf105bc2b48549a2b4be62507a216f2eb446de5c8984cb409b506"}}, {"rule": 2, "type": "equivalent", "target": "c8eb9f79e015cec39d5f6201f588738f", "evidence": {"same_day": true, "patch_ids": ["775da154647809dc3f3016f20f0b14f2"], "statement_hash": "c6a44e7cb11bf105bc2b48549a2b4be62507a216f2eb446de5c8984cb409b506"}}], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "5e0259fead17b9b318a6394d1f6aaf19", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "修复 LZ4 压缩归档数据可能不正确的解压缩问题", "evidence": {"same_day": true, "patch_ids": ["775da154647809dc3f3016f20f0b14f2"], "statement_hash": "c6a44e7cb11bf105bc2b48549a2b4be62507a216f2eb446de5c8984cb409b506"}, "url": "/docs/compare/?release=16.10#16.10-8ec1446fffeb5fd7", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "c8eb9f79e015cec39d5f6201f588738f", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "修复 LZ4 压缩归档数据可能不正确的解压缩问题", "evidence": {"same_day": true, "patch_ids": ["775da154647809dc3f3016f20f0b14f2"], "statement_hash": "c6a44e7cb11bf105bc2b48549a2b4be62507a216f2eb446de5c8984cb409b506"}, "url": "/docs/compare/?release=15.14#15.14-e8a24372b6b9ae7e", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}]}, {"id": "17.6-5825acdc2554d8ce", "cves": [], "html": "避免 B-树索引扫描在罕见情况下将错误的索引条目标记为死条目（Peter Geoghegan）§
", "text": "避免 B-树索引扫描在罕见情况下将错误的索引条目标记为死条目（Peter Geoghegan）§", "title": "避免 B-树索引扫描在罕见情况下将错误的索引条目标记为死条目", "commits": ["40aa5ddea"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "2ec40d2e57a4c2b1d17136e72506068448af5306563849b527088e344d8a04e7", "section_path": ["变更"], "commit_groups": [["38c8d2987", "40aa5ddea", "7c319f549", "7c7c0a77d", "c7f25feb3", "d2ec67109"]], "identity_text": "Avoid a rare scenario where a btree index scan could mark the wrong index entries as dead (Peter Geoghegan)", "commit_aliases": ["38c8d2987", "40aa5ddea", "7c319f549", "7c7c0a77d", "c7f25feb3", "d2ec67109"], "source_commits": ["40aa5ddea"], "source_entry_id": "17.6/changes/023", "db_id": "2896a1f0aa2fe4a744169742b2559dcd", "patch_ids": ["aad96c72a59beb69e1860513caa21d9f"], "statement_hash": "d899960974f459230ac3f3091253ae0f247bae81693df68cda29e10707290ad6", "relations": [{"rule": 2, "type": "equivalent", "target": "13ed0887bc8dac0823c64554459a581c", "evidence": {"same_day": true, "patch_ids": ["aad96c72a59beb69e1860513caa21d9f"], "statement_hash": "d899960974f459230ac3f3091253ae0f247bae81693df68cda29e10707290ad6"}}, {"rule": 2, "type": "equivalent", "target": "19b1fbc49c15351ae0829b195564baa0", "evidence": {"same_day": true, "patch_ids": ["aad96c72a59beb69e1860513caa21d9f"], "statement_hash": "d899960974f459230ac3f3091253ae0f247bae81693df68cda29e10707290ad6"}}, {"rule": 2, "type": "equivalent", "target": "3c09bd63d8e7c6a637ad01ffa6b1f882", "evidence": {"same_day": true, "patch_ids": ["aad96c72a59beb69e1860513caa21d9f"], "statement_hash": "d899960974f459230ac3f3091253ae0f247bae81693df68cda29e10707290ad6"}}, {"rule": 2, "type": "equivalent", "target": "7907917b0e9fc70fa54857b3dd5f0789", "evidence": {"same_day": true, "patch_ids": ["aad96c72a59beb69e1860513caa21d9f"], "statement_hash": "d899960974f459230ac3f3091253ae0f247bae81693df68cda29e10707290ad6"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "13ed0887bc8dac0823c64554459a581c", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "避免 B-树索引扫描在罕见情况下将错误的索引条目标记为死条目", "evidence": {"same_day": true, "patch_ids": ["aad96c72a59beb69e1860513caa21d9f"], "statement_hash": "d899960974f459230ac3f3091253ae0f247bae81693df68cda29e10707290ad6"}, "url": "/docs/compare/?release=16.10#16.10-2b08a4614d13a7a4", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "19b1fbc49c15351ae0829b195564baa0", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "避免 B-树索引扫描在罕见情况下将错误的索引条目标记为死条目", "evidence": {"same_day": true, "patch_ids": ["aad96c72a59beb69e1860513caa21d9f"], "statement_hash": "d899960974f459230ac3f3091253ae0f247bae81693df68cda29e10707290ad6"}, "url": "/docs/compare/?release=15.14#15.14-3522682a6e13212e", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "3c09bd63d8e7c6a637ad01ffa6b1f882", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "避免 B-树索引扫描在罕见情况下将错误的索引条目标记为死条目", "evidence": {"same_day": true, "patch_ids": ["aad96c72a59beb69e1860513caa21d9f"], "statement_hash": "d899960974f459230ac3f3091253ae0f247bae81693df68cda29e10707290ad6"}, "url": "/docs/compare/?release=14.19#14.19-e337667a91002083", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "7907917b0e9fc70fa54857b3dd5f0789", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "避免 B-树索引扫描在罕见情况下将错误的索引条目标记为死条目", "evidence": {"same_day": true, "patch_ids": ["aad96c72a59beb69e1860513caa21d9f"], "statement_hash": "d899960974f459230ac3f3091253ae0f247bae81693df68cda29e10707290ad6"}, "url": "/docs/compare/?release=13.22#13.22-b6601ad2fa69571a", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-6c93c6ab7dac53db", "cves": [], "html": "避免在逻辑复制期间重新分发来自其他事务的缓存失效消息（Vignesh C）§
\n我们上一轮次版本发布中包含了一项修复，确保复制接收进程会响应跨进程缓存失效消息，从而避免它们在执行复制更新时使用过期的系统目录数据。然而，该修复无意中也让这些进程再次重新分发这些消息，导致失效消息数量呈指数级增长，并且常常以内存分配失败告终。现已通过不重新分发收到的消息来修复该问题。
", "text": "避免在逻辑复制期间重新分发来自其他事务的缓存失效消息（Vignesh C）§ 我们上一轮次版本发布中包含了一项修复，确保复制接收进程会响应跨进程缓存失效消息，从而避免它们在执行复制更新时使用过期的系统目录数据。然而，该修复无意中也让这些进程再次重新分发这些消息，导致失效消息数量呈指数级增长，并且常常以内存分配失败告终。现已通过不重新分发收到的消息来修复该问题。", "title": "避免在逻辑复制期间重新分发来自其他事务的缓存失效消息", "commits": ["45c357e0e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "218fc52d2bc0a41a7b3cd4e8bda48dfd17369e2a7bd3b3203b106ad3bbd13856", "section_path": ["变更"], "commit_groups": [["1230be12f", "45c357e0e", "983b36362", "b2ae07720", "d87d07b7a", "fc0fb77c5"], ["87819f766"]], "identity_text": "Avoid re-distributing cache invalidation messages from other transactions during logical replication (vignesh C) Our previous round of minor releases included a bug fix to ensure that replication receiver processes would respond to cross-process cache invalidation messages, preventing them from using stale catalog data while performing replication updates. However, the fix unintentionally made them also redistribute those messages again, leading to an exponential increase in the number of invalidation messages, which would often end in a memory allocation failure. Fix by not redistributing received messages.", "commit_aliases": ["1230be12f", "45c357e0e", "87819f766", "983b36362", "b2ae07720", "d87d07b7a", "fc0fb77c5"], "source_commits": ["45c357e0e", "87819f766"], "source_entry_id": "17.6/changes/024", "db_id": "4eaa52c036c883f61e659c01b52fb190", "patch_ids": ["44892eb4edae7c935ca996ba7215a3be", "9144d1cc1257f28763bbe94a44dcec67"], "statement_hash": "cb76142d5aa80484a475a98632d6f3282d96cb8992669eaaed5c92b24c4f534d", "relations": [{"rule": 2, "type": "equivalent", "target": "1b42275facb138dcb392f27b6e27f9a4", "evidence": {"same_day": true, "patch_ids": ["44892eb4edae7c935ca996ba7215a3be", "9144d1cc1257f28763bbe94a44dcec67"], "statement_hash": "cb76142d5aa80484a475a98632d6f3282d96cb8992669eaaed5c92b24c4f534d"}}, {"rule": 2, "type": "equivalent", "target": "a9cc9dab0228660da06096fd68f433f3", "evidence": {"same_day": true, "patch_ids": ["44892eb4edae7c935ca996ba7215a3be", "9144d1cc1257f28763bbe94a44dcec67"], "statement_hash": "cb76142d5aa80484a475a98632d6f3282d96cb8992669eaaed5c92b24c4f534d"}}, {"rule": 2, "type": "equivalent", "target": "b3009aa88c3ced8a05c6dba715705c19", "evidence": {"same_day": true, "patch_ids": ["44892eb4edae7c935ca996ba7215a3be", "9144d1cc1257f28763bbe94a44dcec67"], "statement_hash": "cb76142d5aa80484a475a98632d6f3282d96cb8992669eaaed5c92b24c4f534d"}}, {"rule": 2, "type": "equivalent", "target": "c21a911113d9e87b49c45518f22a2dfc", "evidence": {"same_day": true, "patch_ids": ["44892eb4edae7c935ca996ba7215a3be", "9144d1cc1257f28763bbe94a44dcec67"], "statement_hash": "cb76142d5aa80484a475a98632d6f3282d96cb8992669eaaed5c92b24c4f534d"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "b3009aa88c3ced8a05c6dba715705c19", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "避免在逻辑复制期间重新分发来自其他事务的缓存失效消息", "evidence": {"same_day": true, "patch_ids": ["44892eb4edae7c935ca996ba7215a3be", "9144d1cc1257f28763bbe94a44dcec67"], "statement_hash": "cb76142d5aa80484a475a98632d6f3282d96cb8992669eaaed5c92b24c4f534d"}, "url": "/docs/compare/?release=16.10#16.10-6c93c6ab7dac53db", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "c21a911113d9e87b49c45518f22a2dfc", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "避免在逻辑复制期间重新分发来自其他事务的缓存失效消息", "evidence": {"same_day": true, "patch_ids": ["44892eb4edae7c935ca996ba7215a3be", "9144d1cc1257f28763bbe94a44dcec67"], "statement_hash": "cb76142d5aa80484a475a98632d6f3282d96cb8992669eaaed5c92b24c4f534d"}, "url": "/docs/compare/?release=15.14#15.14-6c93c6ab7dac53db", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "1b42275facb138dcb392f27b6e27f9a4", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "避免在逻辑复制期间重新分发来自其他事务的缓存失效消息", "evidence": {"same_day": true, "patch_ids": ["44892eb4edae7c935ca996ba7215a3be", "9144d1cc1257f28763bbe94a44dcec67"], "statement_hash": "cb76142d5aa80484a475a98632d6f3282d96cb8992669eaaed5c92b24c4f534d"}, "url": "/docs/compare/?release=14.19#14.19-6c93c6ab7dac53db", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "a9cc9dab0228660da06096fd68f433f3", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "避免在逻辑复制期间重新分发来自其他事务的缓存失效消息", "evidence": {"same_day": true, "patch_ids": ["44892eb4edae7c935ca996ba7215a3be", "9144d1cc1257f28763bbe94a44dcec67"], "statement_hash": "cb76142d5aa80484a475a98632d6f3282d96cb8992669eaaed5c92b24c4f534d"}, "url": "/docs/compare/?release=13.22#13.22-3fd682e6d8f36911", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-5ba94aab21c53164", "cves": [], "html": "当复制槽同步配置错误时，避免服务器意外关闭（Fujii Masao）§
\n如果 sync_replication_slots 被设为 true，而 wal_level 又低于 logical，postmaster 进程就会报告错误并随之停止。理想行为只是禁用复制槽同步，因此现在降低该错误消息的级别，以避免 postmaster 被关闭。
避免在检查点期间过早移除旧 WAL（Vitaly Davydov）§
\n如果在检查点进行期间推进了某个复制槽的 restart point，那么已不再需要的 WAL 段可能会被过早移除，从而在数据库随后立即崩溃时导致恢复失败。现已通过额外保留一个检查点周期来修复此问题。
", "text": "避免在检查点期间过早移除旧 WAL（Vitaly Davydov）§ 如果在检查点进行期间推进了某个复制槽的 restart point，那么已不再需要的 WAL 段可能会被过早移除，从而在数据库随后立即崩溃时导致恢复失败。现已通过额外保留一个检查点周期来修复此问题。", "title": "避免在检查点期间过早移除旧 WAL", "commits": ["2090edc6f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "862afb461e7b25af2502cb6ac2fddb9e304f4a3f37e3fdd92f1a8161a9dcaf0b", "section_path": ["变更"], "commit_groups": [["2090edc6f", "cea8f2c3e", "dd3df0b85", "dd9bc1a17", "e2832bd96"]], "identity_text": "Avoid premature removal of old WAL during checkpoints (Vitaly Davydov) If a replication slot's restart point is advanced while a checkpoint is in progress, no-longer-needed WAL segments could get removed too soon, leading to recovery failure if the database crashes immediately afterwards. Fix by keeping them for one additional checkpoint cycle.", "commit_aliases": ["2090edc6f", "cea8f2c3e", "dd3df0b85", "dd9bc1a17", "e2832bd96"], "source_commits": ["2090edc6f"], "source_entry_id": "17.6/changes/026", "db_id": "157e22a9e0303f40144c7595100b1787", "patch_ids": ["0b3f1a7eb4fd7ec82c605bba05f1ed04"], "statement_hash": "f9ccd6fcb293b2899cd65dbde83e990bd6cdb466fe17d70177c6d3a300702857", "relations": [{"rule": 2, "type": "equivalent", "target": "0b434eea45e0fa732c2e0f652d15f416", "evidence": {"same_day": true, "patch_ids": ["0b3f1a7eb4fd7ec82c605bba05f1ed04"], "statement_hash": "f9ccd6fcb293b2899cd65dbde83e990bd6cdb466fe17d70177c6d3a300702857"}}, {"rule": 2, "type": "equivalent", "target": "6b7844a84a190d055371db21611e225a", "evidence": {"same_day": true, "patch_ids": ["0b3f1a7eb4fd7ec82c605bba05f1ed04"], "statement_hash": "f9ccd6fcb293b2899cd65dbde83e990bd6cdb466fe17d70177c6d3a300702857"}}, {"rule": 2, "type": "equivalent", "target": "991bdbb446e54520c74d7fbfcb5eb2d5", "evidence": {"same_day": true, "patch_ids": ["0b3f1a7eb4fd7ec82c605bba05f1ed04"], "statement_hash": "f9ccd6fcb293b2899cd65dbde83e990bd6cdb466fe17d70177c6d3a300702857"}}, {"rule": 2, "type": "equivalent", "target": "9cd299656d523ad883dc82d378ca2484", "evidence": {"same_day": true, "patch_ids": ["0b3f1a7eb4fd7ec82c605bba05f1ed04"], "statement_hash": "f9ccd6fcb293b2899cd65dbde83e990bd6cdb466fe17d70177c6d3a300702857"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "0b434eea45e0fa732c2e0f652d15f416", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "避免在检查点期间过早移除旧 WAL", "evidence": {"same_day": true, "patch_ids": ["0b3f1a7eb4fd7ec82c605bba05f1ed04"], "statement_hash": "f9ccd6fcb293b2899cd65dbde83e990bd6cdb466fe17d70177c6d3a300702857"}, "url": "/docs/compare/?release=16.10#16.10-1494a836c62de80f", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "9cd299656d523ad883dc82d378ca2484", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "避免在检查点期间过早移除旧 WAL", "evidence": {"same_day": true, "patch_ids": ["0b3f1a7eb4fd7ec82c605bba05f1ed04"], "statement_hash": "f9ccd6fcb293b2899cd65dbde83e990bd6cdb466fe17d70177c6d3a300702857"}, "url": "/docs/compare/?release=15.14#15.14-1494a836c62de80f", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "991bdbb446e54520c74d7fbfcb5eb2d5", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "避免在检查点期间过早移除旧 WAL", "evidence": {"same_day": true, "patch_ids": ["0b3f1a7eb4fd7ec82c605bba05f1ed04"], "statement_hash": "f9ccd6fcb293b2899cd65dbde83e990bd6cdb466fe17d70177c6d3a300702857"}, "url": "/docs/compare/?release=14.19#14.19-1494a836c62de80f", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "6b7844a84a190d055371db21611e225a", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "避免在检查点期间过早移除旧的 WAL", "evidence": {"same_day": true, "patch_ids": ["0b3f1a7eb4fd7ec82c605bba05f1ed04"], "statement_hash": "f9ccd6fcb293b2899cd65dbde83e990bd6cdb466fe17d70177c6d3a300702857"}, "url": "/docs/compare/?release=13.22#13.22-fc131f2ed494a6e9", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-1b410e48287bb276", "cves": [], "html": "绝不要向后移动复制槽的 confirmed-flush 位置（Shveta Malik）§
\n在某些情况下，复制客户端可能会确认一个超过其持久化存储位置的 LSN，然后在重启后又发送一个更旧的 LSN。只要客户端对这两个位置之间的 WAL 没有任何必须执行的操作，我们就认为这并不是缺陷。不过，为避免数据重复，我们不应重新发送那段 WAL，因此要确保对给定槽始终采用最新的 confirmed LSN。
", "text": "绝不要向后移动复制槽的 confirmed-flush 位置（Shveta Malik）§ 在某些情况下，复制客户端可能会确认一个超过其持久化存储位置的 LSN，然后在重启后又发送一个更旧的 LSN。只要客户端对这两个位置之间的 WAL 没有任何必须执行的操作，我们就认为这并不是缺陷。不过，为避免数据重复，我们不应重新发送那段 WAL，因此要确保对给定槽始终采用最新的 confirmed LSN。", "title": "绝不要向后移动复制槽的 confirmed-flush 位置", "commits": ["7318f241d"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "770d917febfe336cd9763b107e31e6c956054685e12d5b155c74bbdacf04b7e1", "section_path": ["变更"], "commit_groups": [["7318f241d", "9d1a62359", "ad5eaf390", "c0f51fde5", "e323d9df0", "e68459489"]], "identity_text": "Never move a replication slot's confirmed-flush position backwards (Shveta Malik) In some cases a replication client could acknowledge an LSN that's past what it has stored persistently, and then perhaps send an older LSN after a restart. We consider this not-a-bug so long as the client did not have anything it needed to do for the WAL between the two points. However, we should not re-send that WAL for fear of data duplication, so make sure we always believe the latest confirmed LSN for a given slot.", "commit_aliases": ["7318f241d", "9d1a62359", "ad5eaf390", "c0f51fde5", "e323d9df0", "e68459489"], "source_commits": ["7318f241d"], "source_entry_id": "17.6/changes/027", "db_id": "c47cce13b2327ae5b79682de3bf86211", "patch_ids": ["2de9aabd4b6d806cb09f97233c42d8b9"], "statement_hash": "5099a5e2a539f415dfef4d115b189733d47e78c23e785a29b6426dcc967cc5e8", "relations": [{"rule": 2, "type": "equivalent", "target": "302bc1e6fedc523897672d05dfe14569", "evidence": {"same_day": true, "patch_ids": ["2de9aabd4b6d806cb09f97233c42d8b9"], "statement_hash": "5099a5e2a539f415dfef4d115b189733d47e78c23e785a29b6426dcc967cc5e8"}}, {"rule": 2, "type": "equivalent", "target": "543c80aec11057987c705aefac252ccb", "evidence": {"same_day": true, "patch_ids": ["2de9aabd4b6d806cb09f97233c42d8b9"], "statement_hash": "5099a5e2a539f415dfef4d115b189733d47e78c23e785a29b6426dcc967cc5e8"}}, {"rule": 2, "type": "equivalent", "target": "6d9a892128e3245f9c561bcf03f2d17d", "evidence": {"same_day": true, "patch_ids": ["2de9aabd4b6d806cb09f97233c42d8b9"], "statement_hash": "5099a5e2a539f415dfef4d115b189733d47e78c23e785a29b6426dcc967cc5e8"}}, {"rule": 2, "type": "equivalent", "target": "a5a72dc4b4696a8ef2999104a04f52ef", "evidence": {"same_day": true, "patch_ids": ["2de9aabd4b6d806cb09f97233c42d8b9"], "statement_hash": "5099a5e2a539f415dfef4d115b189733d47e78c23e785a29b6426dcc967cc5e8"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "302bc1e6fedc523897672d05dfe14569", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "绝不要向后移动复制槽的 confirmed-flush 位置", "evidence": {"same_day": true, "patch_ids": ["2de9aabd4b6d806cb09f97233c42d8b9"], "statement_hash": "5099a5e2a539f415dfef4d115b189733d47e78c23e785a29b6426dcc967cc5e8"}, "url": "/docs/compare/?release=16.10#16.10-1b410e48287bb276", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "a5a72dc4b4696a8ef2999104a04f52ef", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "绝不要向后移动复制槽的 confirmed-flush 位置", "evidence": {"same_day": true, "patch_ids": ["2de9aabd4b6d806cb09f97233c42d8b9"], "statement_hash": "5099a5e2a539f415dfef4d115b189733d47e78c23e785a29b6426dcc967cc5e8"}, "url": "/docs/compare/?release=15.14#15.14-1b410e48287bb276", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "6d9a892128e3245f9c561bcf03f2d17d", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "绝不要向后移动复制槽的 confirmed-flush 位置", "evidence": {"same_day": true, "patch_ids": ["2de9aabd4b6d806cb09f97233c42d8b9"], "statement_hash": "5099a5e2a539f415dfef4d115b189733d47e78c23e785a29b6426dcc967cc5e8"}, "url": "/docs/compare/?release=14.19#14.19-1b410e48287bb276", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "543c80aec11057987c705aefac252ccb", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "绝不将复制槽的已确认刷新位置向后移动", "evidence": {"same_day": true, "patch_ids": ["2de9aabd4b6d806cb09f97233c42d8b9"], "statement_hash": "5099a5e2a539f415dfef4d115b189733d47e78c23e785a29b6426dcc967cc5e8"}, "url": "/docs/compare/?release=13.22#13.22-8712d41c8b7aa917", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-45175aa7d7cebbbf", "cves": [], "html": "防止在启动新的逻辑复制工作进程前出现过长延迟（Tom Lane）§
\n在某些情况下，逻辑复制启动器在启动新工作进程之前，休眠时间可能会远远超过所配置的 wal_retrieve_retry_interval。
修复在逻辑复制 INSERT ... ON CONFLICT 时的释放后使用问题（Ethan Mertz、Michael Paquier）§
这可能导致不正确的进度报告，如果运气非常不好还可能导致 WAL 发送进程崩溃。
", "text": "修复在逻辑复制 INSERT ... ON CONFLICT 时的释放后使用问题（Ethan Mertz、Michael Paquier）§ 这可能导致不正确的进度报告，如果运气非常不好还可能导致 WAL 发送进程崩溃。", "title": "修复在逻辑复制 INSERT ... ON CONFLICT 时的释放后使用问题", "commits": ["9e0b4b1ab"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "13bd2330a436c1b6f7ba22cb1acb92cbfce4a2472b07278b176587befa419177", "section_path": ["变更"], "commit_groups": [["11de339aa", "3b3fa9490", "9e0b4b1ab", "ec96e8812"]], "identity_text": "Fix use-after-free during logical replication of INSERT ... ON CONFLICT (Ethan Mertz, Michael Paquier) This could result in incorrect progress reporting, or with very bad luck it could result in a crash of the WAL sender process.", "commit_aliases": ["11de339aa", "3b3fa9490", "9e0b4b1ab", "ec96e8812"], "source_commits": ["9e0b4b1ab"], "source_entry_id": "17.6/changes/029", "db_id": "d5d9004e76f7535b6d0336d4e60ba244", "patch_ids": ["77bfa12a4c07686f775586c1330d7401"], "statement_hash": "c99216e19f1bf2d79c8fee8f6461e1fdbb29f1be3b32b7103d55f4593271eccb", "relations": [{"rule": 2, "type": "equivalent", "target": "f37bc12b2d7bd8fa9e9257a9a232a920", "evidence": {"same_day": true, "patch_ids": ["77bfa12a4c07686f775586c1330d7401"], "statement_hash": "c99216e19f1bf2d79c8fee8f6461e1fdbb29f1be3b32b7103d55f4593271eccb"}}], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "f37bc12b2d7bd8fa9e9257a9a232a920", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "修复在逻辑复制 INSERT ... ON CONFLICT 时的释放后使用问题", "evidence": {"same_day": true, "patch_ids": ["77bfa12a4c07686f775586c1330d7401"], "statement_hash": "c99216e19f1bf2d79c8fee8f6461e1fdbb29f1be3b32b7103d55f4593271eccb"}, "url": "/docs/compare/?release=16.10#16.10-085516c09acdc2c1", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}]}, {"id": "17.6-edcd26180e8726a0", "cves": [], "html": "允许中断在备库服务器上等待事务结束的操作（Kevin K Biju）§
\n在备库服务器上创建复制槽时，可能需要等待主库上的某些活动事务结束，并在备库上完成回放。由于这可能是无限期等待，因此理应允许取消该操作，但原先循环中没有检查查询取消。
", "text": "允许中断在备库服务器上等待事务结束的操作（Kevin K Biju）§ 在备库服务器上创建复制槽时，可能需要等待主库上的某些活动事务结束，并在备库上完成回放。由于这可能是无限期等待，因此理应允许取消该操作，但原先循环中没有检查查询取消。", "title": "允许中断在备库服务器上等待事务结束的操作", "commits": ["24c5ad5be"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "0405a0ce21fe39f4ce3d6ad6b137c3042cc299f1168b3e07efc0066b2feae108", "section_path": ["变更"], "commit_groups": [["24c5ad5be", "405cca9da", "63fa7caa9", "706344f06", "9130d8eee", "961553daf"]], "identity_text": "Allow waiting for a transaction on a standby server to be interrupted (Kevin K Biju) Creation of a replication slot on a standby server may require waiting for some active transaction(s) to finish on the primary and then be replayed on the standby. Since that could be an indefinite wait, it's desirable to allow the operation to be cancelled, but there was no check for query cancel in the loop.", "commit_aliases": ["24c5ad5be", "405cca9da", "63fa7caa9", "706344f06", "9130d8eee", "961553daf"], "source_commits": ["24c5ad5be"], "source_entry_id": "17.6/changes/030", "db_id": "441419563e7b1213eb40a5ad00a314a2", "patch_ids": ["187e0d1d9cfa1bfc5dfe37756a2c0c56"], "statement_hash": "9462db228f22687711dee0ec8d8acebf64eda37d04aeb9701390084ffe456f45", "relations": [{"rule": 2, "type": "equivalent", "target": "0e70198e4406f4acd9a45e1827f2a947", "evidence": {"same_day": true, "patch_ids": ["187e0d1d9cfa1bfc5dfe37756a2c0c56"], "statement_hash": "9462db228f22687711dee0ec8d8acebf64eda37d04aeb9701390084ffe456f45"}}, {"rule": 2, "type": "equivalent", "target": "747d14855d798bb1987f50d262b8d020", "evidence": {"same_day": true, "patch_ids": ["187e0d1d9cfa1bfc5dfe37756a2c0c56"], "statement_hash": "9462db228f22687711dee0ec8d8acebf64eda37d04aeb9701390084ffe456f45"}}, {"rule": 2, "type": "equivalent", "target": "82cbaa6bcb1ffd8af558965a2d5c0001", "evidence": {"same_day": true, "patch_ids": ["187e0d1d9cfa1bfc5dfe37756a2c0c56"], "statement_hash": "9462db228f22687711dee0ec8d8acebf64eda37d04aeb9701390084ffe456f45"}}, {"rule": 2, "type": "equivalent", "target": "b6b261baad736c03573d16bfb1b117b3", "evidence": {"same_day": true, "patch_ids": ["187e0d1d9cfa1bfc5dfe37756a2c0c56"], "statement_hash": "9462db228f22687711dee0ec8d8acebf64eda37d04aeb9701390084ffe456f45"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "0e70198e4406f4acd9a45e1827f2a947", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "允许中断在备库服务器上等待事务结束的操作", "evidence": {"same_day": true, "patch_ids": ["187e0d1d9cfa1bfc5dfe37756a2c0c56"], "statement_hash": "9462db228f22687711dee0ec8d8acebf64eda37d04aeb9701390084ffe456f45"}, "url": "/docs/compare/?release=16.10#16.10-edcd26180e8726a0", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "82cbaa6bcb1ffd8af558965a2d5c0001", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "允许中断在备库服务器上等待事务结束的操作", "evidence": {"same_day": true, "patch_ids": ["187e0d1d9cfa1bfc5dfe37756a2c0c56"], "statement_hash": "9462db228f22687711dee0ec8d8acebf64eda37d04aeb9701390084ffe456f45"}, "url": "/docs/compare/?release=15.14#15.14-edcd26180e8726a0", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "b6b261baad736c03573d16bfb1b117b3", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "允许中断在备库服务器上等待事务结束的操作", "evidence": {"same_day": true, "patch_ids": ["187e0d1d9cfa1bfc5dfe37756a2c0c56"], "statement_hash": "9462db228f22687711dee0ec8d8acebf64eda37d04aeb9701390084ffe456f45"}, "url": "/docs/compare/?release=14.19#14.19-edcd26180e8726a0", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "747d14855d798bb1987f50d262b8d020", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "允许在备库上等待事务时被中断", "evidence": {"same_day": true, "patch_ids": ["187e0d1d9cfa1bfc5dfe37756a2c0c56"], "statement_hash": "9462db228f22687711dee0ec8d8acebf64eda37d04aeb9701390084ffe456f45"}, "url": "/docs/compare/?release=13.22#13.22-b7873e51a933f275", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-08867e7ffe043727", "cves": [], "html": "不要让级联逻辑 WAL 发送进程尝试发送超出其备库服务器已回放范围的数据（Alexey Makhmutov）§
\n这可以避免此类 WAL 发送进程在备库服务器关闭时卡住，等待本不会发生的回放工作，因为服务器的启动进程此时已经关闭。
", "text": "不要让级联逻辑 WAL 发送进程尝试发送超出其备库服务器已回放范围的数据（Alexey Makhmutov）§ 这可以避免此类 WAL 发送进程在备库服务器关闭时卡住，等待本不会发生的回放工作，因为服务器的启动进程此时已经关闭。", "title": "不要让级联逻辑 WAL 发送进程尝试发送超出其备库服务器已回放范围的数据", "commits": ["87be749c7"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "78f9f8a799860d24a40bd067986a34e0e3bf538375ea13cc8d54d5c151bb9603", "section_path": ["变更"], "commit_groups": [["5231ed826", "5e6d561bc", "87be749c7"]], "identity_text": "Do not let cascading logical WAL senders try to send data that's beyond what has been replayed on their standby server (Alexey Makhmutov) This avoids a situation where such WAL senders could get stuck at standby server shutdown, waiting for replay work that will not happen because the server's startup process is already shut down.", "commit_aliases": ["5231ed826", "5e6d561bc", "87be749c7"], "source_commits": ["87be749c7"], "source_entry_id": "17.6/changes/031", "db_id": "f16e1bdc17043f264559177239b6811b", "patch_ids": ["dbf1e2775eadcc39cb4e5c411b8a010f"], "statement_hash": "d4f9ae7fc960bfe18c999fc3dd533605a1db401525b99f13fadf1b0d970f3c04", "relations": [{"rule": 2, "type": "equivalent", "target": "7405eab782e3675028e3b95a8c7f8131", "evidence": {"same_day": true, "patch_ids": ["dbf1e2775eadcc39cb4e5c411b8a010f"], "statement_hash": "d4f9ae7fc960bfe18c999fc3dd533605a1db401525b99f13fadf1b0d970f3c04"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "7405eab782e3675028e3b95a8c7f8131", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "不要让级联逻辑 WAL 发送进程尝试发送超出其备库服务器已回放范围的数据", "evidence": {"same_day": true, "patch_ids": ["dbf1e2775eadcc39cb4e5c411b8a010f"], "statement_hash": "d4f9ae7fc960bfe18c999fc3dd533605a1db401525b99f13fadf1b0d970f3c04"}, "url": "/docs/compare/?release=16.10#16.10-08867e7ffe043727", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}]}, {"id": "17.6-8d88f1f98ad8a0f5", "cves": [], "html": "修复自动清理中的每关系内存泄漏（Tom Lane）§
", "text": "修复自动清理中的每关系内存泄漏（Tom Lane）§", "title": "修复自动清理中的每关系内存泄漏", "commits": ["13d21b48a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "3f3dac55333d2791ff3893115692514e09ab806e33cbf402fe62a8821b524fdc", "section_path": ["变更"], "commit_groups": [["02502c1bc", "13d21b48a", "cd3064f98", "e087b5b79"]], "identity_text": "Fix per-relation memory leakage in autovacuum (Tom Lane)", "commit_aliases": ["02502c1bc", "13d21b48a", "cd3064f98", "e087b5b79"], "source_commits": ["cd3064f98"], "source_entry_id": "17.6/changes/032", "db_id": "30e3b131cb9299bb525077869f153085", "patch_ids": ["af4b22ae95ecc988edb60495a12de2ef"], "statement_hash": "f69f41e4e148ef253e75639d8ec093551f9a31f39b1fc5e8b598c6ebff1e104b", "relations": [{"rule": 2, "type": "equivalent", "target": "526e591053534be4ba2524d8cd2071f9", "evidence": {"same_day": true, "patch_ids": ["af4b22ae95ecc988edb60495a12de2ef"], "statement_hash": "f69f41e4e148ef253e75639d8ec093551f9a31f39b1fc5e8b598c6ebff1e104b"}}, {"rule": 2, "type": "equivalent", "target": "8ef5d0f879ecd40256967e8563989d08", "evidence": {"same_day": true, "patch_ids": ["af4b22ae95ecc988edb60495a12de2ef"], "statement_hash": "f69f41e4e148ef253e75639d8ec093551f9a31f39b1fc5e8b598c6ebff1e104b"}}], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "8ef5d0f879ecd40256967e8563989d08", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "修复自动清理中的每关系内存泄漏", "evidence": {"same_day": true, "patch_ids": ["af4b22ae95ecc988edb60495a12de2ef"], "statement_hash": "f69f41e4e148ef253e75639d8ec093551f9a31f39b1fc5e8b598c6ebff1e104b"}, "url": "/docs/compare/?release=16.10#16.10-45f82fbeb414dcb5", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "526e591053534be4ba2524d8cd2071f9", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "修复自动清理中的每关系内存泄漏", "evidence": {"same_day": true, "patch_ids": ["af4b22ae95ecc988edb60495a12de2ef"], "statement_hash": "f69f41e4e148ef253e75639d8ec093551f9a31f39b1fc5e8b598c6ebff1e104b"}, "url": "/docs/compare/?release=15.14#15.14-8d88f1f98ad8a0f5", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}]}, {"id": "17.6-6cf6f464f0623ed1", "cves": [], "html": "修复 XMLSERIALIZE(... INDENT) 中的会话生命期内存泄漏（Dmitry Kovalenko、Tom Lane）§ §
修复使用 “bump” 分配器分配大块内存时，在内存耗尽后可能发生崩溃的问题（Tom Lane）§
", "text": "修复使用 “bump” 分配器分配大块内存时，在内存耗尽后可能发生崩溃的问题（Tom Lane）§", "title": "修复使用 “bump” 分配器分配大块内存时，在内存耗尽后可能发生崩溃的问题", "commits": ["a05cf22e0"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "01f6674f7251b8d1b9d87130cb8100ca6f5065e0c1bdcecefa27c6edbe1fe731", "section_path": ["变更"], "commit_groups": [["a05cf22e0", "d4a7e4e17"]], "identity_text": "Fix possible crash after out-of-memory when allocating large chunks with the bump allocator (Tom Lane)", "commit_aliases": ["a05cf22e0", "d4a7e4e17"], "source_commits": ["a05cf22e0"], "source_entry_id": "17.6/changes/034", "db_id": "aba8e957973bfafc24a221a550a91339", "patch_ids": ["dae72ac657b586756fd2d8a164cb1752"], "statement_hash": "3d4a5c20eb9d9881f2dc3314df59565ccfd88d1fc45bf784ce3cd7b0baa49288", "relations": [], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.6-32486322b55d4f87", "cves": [], "html": "修复某些位置可能在没有任何快照的情况下尝试获取系统目录中经过 TOAST 处理的字段的问题（Nathan Bossart）§
\n这可能导致断言失败，或出现 “cannot fetch toast data without an active snapshot” 错误。
", "text": "修复某些位置可能在没有任何快照的情况下尝试获取系统目录中经过 TOAST 处理的字段的问题（Nathan Bossart）§ 这可能导致断言失败，或出现 “cannot fetch toast data without an active snapshot” 错误。", "title": "修复某些位置可能在没有任何快照的情况下尝试获取系统目录中经过 TOAST 处理的字段的问题", "commits": ["fe8ea7a2a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "9adabc11cad1565885a00a2dbf1d4f8152ed42921ba9ea486735f489a614e5e3", "section_path": ["变更"], "commit_groups": [["24135398f", "706054b11", "b65be6ef0", "b7ba2c030", "ddfcfb7ce", "fe8ea7a2a"]], "identity_text": "Fix some places that might try to fetch toasted fields of system catalogs without any snapshot (Nathan Bossart) This could result in an assertion failure or cannot fetch toast data without an active snapshot error.", "commit_aliases": ["24135398f", "706054b11", "b65be6ef0", "b7ba2c030", "ddfcfb7ce", "fe8ea7a2a"], "source_commits": ["fe8ea7a2a"], "source_entry_id": "17.6/changes/035", "db_id": "24c6e466f5e05041256451869f823aa4", "patch_ids": ["777b876710acba4c29adff1116eae778"], "statement_hash": "32305323df3e7ebd92b18aa9e41b9366a0801e7322a1b13d39c8cb21303353dc", "relations": [{"rule": 2, "type": "equivalent", "target": "15a89da07fe56608bc1bd8adff46e90e", "evidence": {"same_day": true, "patch_ids": ["777b876710acba4c29adff1116eae778"], "statement_hash": "32305323df3e7ebd92b18aa9e41b9366a0801e7322a1b13d39c8cb21303353dc"}}, {"rule": 2, "type": "equivalent", "target": "47e6dd4cda3e298da853c98533997be9", "evidence": {"same_day": true, "patch_ids": ["777b876710acba4c29adff1116eae778"], "statement_hash": "32305323df3e7ebd92b18aa9e41b9366a0801e7322a1b13d39c8cb21303353dc"}}, {"rule": 2, "type": "equivalent", "target": "71af29c15aec4afda1d0cec55f5993c7", "evidence": {"same_day": true, "patch_ids": ["777b876710acba4c29adff1116eae778"], "statement_hash": "32305323df3e7ebd92b18aa9e41b9366a0801e7322a1b13d39c8cb21303353dc"}}, {"rule": 2, "type": "equivalent", "target": "f19c9f66fd0acfaaf9767b1401906b20", "evidence": {"same_day": true, "patch_ids": ["777b876710acba4c29adff1116eae778"], "statement_hash": "32305323df3e7ebd92b18aa9e41b9366a0801e7322a1b13d39c8cb21303353dc"}}], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "f19c9f66fd0acfaaf9767b1401906b20", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "修复某些位置可能在没有任何快照的情况下尝试获取系统目录中经过 TOAST 处理的字段的问题", "evidence": {"same_day": true, "patch_ids": ["777b876710acba4c29adff1116eae778"], "statement_hash": "32305323df3e7ebd92b18aa9e41b9366a0801e7322a1b13d39c8cb21303353dc"}, "url": "/docs/compare/?release=16.10#16.10-07ee29e0a74ee196", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "47e6dd4cda3e298da853c98533997be9", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "修复某些位置可能在没有任何快照的情况下尝试获取系统目录中经过 TOAST 处理的字段的问题", "evidence": {"same_day": true, "patch_ids": ["777b876710acba4c29adff1116eae778"], "statement_hash": "32305323df3e7ebd92b18aa9e41b9366a0801e7322a1b13d39c8cb21303353dc"}, "url": "/docs/compare/?release=15.14#15.14-3631801cfbc2b6e0", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "71af29c15aec4afda1d0cec55f5993c7", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "修复某些位置可能在没有任何快照的情况下尝试获取系统目录中经过 TOAST 处理的字段的问题", "evidence": {"same_day": true, "patch_ids": ["777b876710acba4c29adff1116eae778"], "statement_hash": "32305323df3e7ebd92b18aa9e41b9366a0801e7322a1b13d39c8cb21303353dc"}, "url": "/docs/compare/?release=14.19#14.19-087c775fe6a3a18e", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "15a89da07fe56608bc1bd8adff46e90e", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "修复某些位置可能在没有任何快照的情况下尝试获取系统目录中经过 TOAST 处理的字段的问题", "evidence": {"same_day": true, "patch_ids": ["777b876710acba4c29adff1116eae778"], "statement_hash": "32305323df3e7ebd92b18aa9e41b9366a0801e7322a1b13d39c8cb21303353dc"}, "url": "/docs/compare/?release=13.22#13.22-ee0f78fa7dcf53d5", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-2438f96ba5a2f4e7", "cves": [], "html": "避免在跨表约束更新期间的断言失败（Tom Lane、Jian He）§ §
", "text": "避免在跨表约束更新期间的断言失败（Tom Lane、Jian He）§ §", "title": "避免在跨表约束更新期间的断言失败", "commits": ["6d4395b40", "bbfcbc4cd"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "76374624931e3dfad33d0deb29ace0e0e8caf3e3f346f0d5976512e1a7c8e299", "section_path": ["变更"], "commit_groups": [["13f1e9f26", "25cab4473", "614ffb26d", "8319e5cb5", "bbfcbc4cd", "c15798cf9"], ["3d7a96871", "6d4395b40", "a10f21e6c", "d36980b71", "e6dd6e6ee", "e902f8181", "f9ba071cc"]], "identity_text": "Avoid assertion failure during cross-table constraint updates (Tom Lane, Jian He)", "commit_aliases": ["13f1e9f26", "25cab4473", "3d7a96871", "614ffb26d", "6d4395b40", "8319e5cb5", "a10f21e6c", "bbfcbc4cd", "c15798cf9", "d36980b71", "e6dd6e6ee", "e902f8181", "f9ba071cc"], "source_commits": ["6d4395b40", "bbfcbc4cd"], "source_entry_id": "17.6/changes/036", "db_id": "8e5c82e0c9a4620f5e78f373d6eab4de", "patch_ids": ["38c2659d2d49792d4d5949aa17d94ffe", "e89d49ef181d2ea31edebe391d6585af"], "statement_hash": "315810c8210fbe84750562b49ec74df0b04879406e3b1c8ac94da02ffc01dcfd", "relations": [{"rule": 2, "type": "equivalent", "target": "4a0017ac513db3525a50660bd847b530", "evidence": {"same_day": true, "patch_ids": ["38c2659d2d49792d4d5949aa17d94ffe", "e89d49ef181d2ea31edebe391d6585af"], "statement_hash": "315810c8210fbe84750562b49ec74df0b04879406e3b1c8ac94da02ffc01dcfd"}}, {"rule": 2, "type": "equivalent", "target": "5bd246584254c738e7c72084c1a50eb1", "evidence": {"same_day": true, "patch_ids": ["38c2659d2d49792d4d5949aa17d94ffe", "e89d49ef181d2ea31edebe391d6585af"], "statement_hash": "315810c8210fbe84750562b49ec74df0b04879406e3b1c8ac94da02ffc01dcfd"}}, {"rule": 2, "type": "equivalent", "target": "7dbbc995359387cd322a74bf2d8ed14e", "evidence": {"same_day": true, "patch_ids": ["38c2659d2d49792d4d5949aa17d94ffe", "e89d49ef181d2ea31edebe391d6585af"], "statement_hash": "315810c8210fbe84750562b49ec74df0b04879406e3b1c8ac94da02ffc01dcfd"}}, {"rule": 2, "type": "equivalent", "target": "be837258ad2a7ec6fa752a4d5cbcc0f4", "evidence": {"same_day": true, "patch_ids": ["38c2659d2d49792d4d5949aa17d94ffe", "e89d49ef181d2ea31edebe391d6585af"], "statement_hash": "315810c8210fbe84750562b49ec74df0b04879406e3b1c8ac94da02ffc01dcfd"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "4a0017ac513db3525a50660bd847b530", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "避免在跨表约束更新期间的断言失败", "evidence": {"same_day": true, "patch_ids": ["38c2659d2d49792d4d5949aa17d94ffe", "e89d49ef181d2ea31edebe391d6585af"], "statement_hash": "315810c8210fbe84750562b49ec74df0b04879406e3b1c8ac94da02ffc01dcfd"}, "url": "/docs/compare/?release=16.10#16.10-b77303bab24eb5bc", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "5bd246584254c738e7c72084c1a50eb1", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "避免在跨表约束更新期间的断言失败", "evidence": {"same_day": true, "patch_ids": ["38c2659d2d49792d4d5949aa17d94ffe", "e89d49ef181d2ea31edebe391d6585af"], "statement_hash": "315810c8210fbe84750562b49ec74df0b04879406e3b1c8ac94da02ffc01dcfd"}, "url": "/docs/compare/?release=15.14#15.14-a052ebd72b72256a", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "be837258ad2a7ec6fa752a4d5cbcc0f4", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "避免在跨表约束更新期间的断言失败", "evidence": {"same_day": true, "patch_ids": ["38c2659d2d49792d4d5949aa17d94ffe", "e89d49ef181d2ea31edebe391d6585af"], "statement_hash": "315810c8210fbe84750562b49ec74df0b04879406e3b1c8ac94da02ffc01dcfd"}, "url": "/docs/compare/?release=14.19#14.19-90acdd628e8a125e", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "7dbbc995359387cd322a74bf2d8ed14e", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "避免在跨表约束更新期间的断言失败", "evidence": {"same_day": true, "patch_ids": ["38c2659d2d49792d4d5949aa17d94ffe", "e89d49ef181d2ea31edebe391d6585af"], "statement_hash": "315810c8210fbe84750562b49ec74df0b04879406e3b1c8ac94da02ffc01dcfd"}, "url": "/docs/compare/?release=13.22#13.22-dabbb36f105c08be", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-ff92c9676b1b3d1b", "cves": [], "html": "移除在 PortalRunMulti() 结束时必须已确定命令标签的错误断言（Álvaro Herrera）§
在边界情况下（例如空的预备语句）此断言会失败。
", "text": "移除在 PortalRunMulti() 结束时必须已确定命令标签的错误断言（Álvaro Herrera）§ 在边界情况下（例如空的预备语句）此断言会失败。", "title": "移除在 PortalRunMulti() 结束时必须已确定命令标签的错误断言", "commits": ["0c466f5e0"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "36fa6f0f244284a72465d8c47567c20007826bc9e669bfdf5419b3ce40f8e3d2", "section_path": ["变更"], "commit_groups": [["0c466f5e0", "43cd85962", "4871c1e9c", "b8926a5b4", "b9a896828", "c2720ac60", "e0d3f3cfb"]], "identity_text": "Remove faulty assertion that a command tag must have been determined by the end of PortalRunMulti() (Álvaro Herrera) This failed in edge cases such as an empty prepared statement.", "commit_aliases": ["0c466f5e0", "43cd85962", "4871c1e9c", "b8926a5b4", "b9a896828", "c2720ac60", "e0d3f3cfb"], "source_commits": ["0c466f5e0"], "source_entry_id": "17.6/changes/037", "db_id": "69acaf7eb64fd7b09e33dc034c31117b", "patch_ids": ["89e3c2af85b43ec9e5c0880c832f7201"], "statement_hash": "f14c48b3304341a11f41f6a2913ce37ca10201d8817278f900dbd5be5eaf588e", "relations": [{"rule": 2, "type": "equivalent", "target": "29f00b03931c829d5d1fc33a545d7f2e", "evidence": {"same_day": true, "patch_ids": ["89e3c2af85b43ec9e5c0880c832f7201"], "statement_hash": "f14c48b3304341a11f41f6a2913ce37ca10201d8817278f900dbd5be5eaf588e"}}, {"rule": 2, "type": "equivalent", "target": "3088f95cab6d048c5c9eaeab66d96284", "evidence": {"same_day": true, "patch_ids": ["89e3c2af85b43ec9e5c0880c832f7201"], "statement_hash": "f14c48b3304341a11f41f6a2913ce37ca10201d8817278f900dbd5be5eaf588e"}}, {"rule": 2, "type": "equivalent", "target": "c19274d77bf45d3de069b4cb3f2b9558", "evidence": {"same_day": true, "patch_ids": ["89e3c2af85b43ec9e5c0880c832f7201"], "statement_hash": "f14c48b3304341a11f41f6a2913ce37ca10201d8817278f900dbd5be5eaf588e"}}, {"rule": 2, "type": "equivalent", "target": "d9147fb696a093f4982942c7e9837f5c", "evidence": {"same_day": true, "patch_ids": ["89e3c2af85b43ec9e5c0880c832f7201"], "statement_hash": "f14c48b3304341a11f41f6a2913ce37ca10201d8817278f900dbd5be5eaf588e"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "3088f95cab6d048c5c9eaeab66d96284", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "移除在 PortalRunMulti() 结束时必须已确定命令标签的错误断言", "evidence": {"same_day": true, "patch_ids": ["89e3c2af85b43ec9e5c0880c832f7201"], "statement_hash": "f14c48b3304341a11f41f6a2913ce37ca10201d8817278f900dbd5be5eaf588e"}, "url": "/docs/compare/?release=16.10#16.10-68b74c0ee8871660", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "d9147fb696a093f4982942c7e9837f5c", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "移除在 PortalRunMulti() 结束时必须已确定命令标签的错误断言", "evidence": {"same_day": true, "patch_ids": ["89e3c2af85b43ec9e5c0880c832f7201"], "statement_hash": "f14c48b3304341a11f41f6a2913ce37ca10201d8817278f900dbd5be5eaf588e"}, "url": "/docs/compare/?release=15.14#15.14-9a073b50a73fe134", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "29f00b03931c829d5d1fc33a545d7f2e", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "移除在 PortalRunMulti() 结束时必须已确定命令标签的错误断言", "evidence": {"same_day": true, "patch_ids": ["89e3c2af85b43ec9e5c0880c832f7201"], "statement_hash": "f14c48b3304341a11f41f6a2913ce37ca10201d8817278f900dbd5be5eaf588e"}, "url": "/docs/compare/?release=14.19#14.19-08438a0e7ddef201", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "c19274d77bf45d3de069b4cb3f2b9558", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "移除在 PortalRunMulti() 结束时必须已确定命令标签的错误断言", "evidence": {"same_day": true, "patch_ids": ["89e3c2af85b43ec9e5c0880c832f7201"], "statement_hash": "f14c48b3304341a11f41f6a2913ce37ca10201d8817278f900dbd5be5eaf588e"}, "url": "/docs/compare/?release=13.22#13.22-c04ee227e6028abd", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-5bf82b7675525165", "cves": [], "html": "修复 XMLTABLE 解析中的断言失败（Richard Guo）§
恢复在并行模式下运行 PL/pgSQL 表达式的能力（Dipesh Dhameliya）§
\nPL/pgSQL 中“表达式”的概念非常广泛，涵盖任何返回单列且不超过一行的 SQL SELECT 查询。因此在某些情况下，例如计算聚合函数时，查询涉及大量工作，使用并行工作进程来运行它会很有用。这以前是可能的，但之前的一个 bug 修复无意中禁用了它。
修复 PL/Python 错误报告中的边缘场景资源泄漏（Tom Lane）§ §
\n在报告 Python 错误时发生内存耗尽失败，可能导致无法减少 Python 对象的引用计数，从而造成贯穿整个会话生命周期的内存泄漏。
", "text": "修复 PL/Python 错误报告中的边缘场景资源泄漏（Tom Lane）§ § 在报告 Python 错误时发生内存耗尽失败，可能导致无法减少 Python 对象的引用计数，从而造成贯穿整个会话生命周期的内存泄漏。", "title": "修复 PL/Python 错误报告中的边缘场景资源泄漏", "commits": ["6f724fcf8", "7559a16e2"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "f97dc13e79a6a374d66cfc859e14e9e91a8e331b62bb9f8f57cc245e1c28a6d0", "section_path": ["变更"], "commit_groups": [["1c78d5553", "31a3a15fa", "5c7fd5976", "7559a16e2", "b56a92651", "c6f7f11d8"], ["4672b6223", "6f724fcf8", "93aca1246", "b898bb2a7", "d4556f592", "ecc8fd2b7"]], "identity_text": "Fix edge-case resource leaks in PL/Python error reporting (Tom Lane) An out-of-memory failure while reporting an error from Python could result in failure to drop reference counts on Python objects, leading to session-lifespan memory leakage.", "commit_aliases": ["1c78d5553", "31a3a15fa", "4672b6223", "5c7fd5976", "6f724fcf8", "7559a16e2", "93aca1246", "b56a92651", "b898bb2a7", "c6f7f11d8", "d4556f592", "ecc8fd2b7"], "source_commits": ["6f724fcf8", "7559a16e2"], "source_entry_id": "17.6/changes/040", "db_id": "0468697c8222104ee239201be4e72851", "patch_ids": ["5cf11831d4da5ade7bf49e7df6741c06", "c8f27688ed48f73fa477355451a4d409"], "statement_hash": "f75869cb85facb2f36714af3f1d39c5deaf952daf8dd097d0129d12e6377a349", "relations": [{"rule": 2, "type": "equivalent", "target": "121c4887d61f8657a3464fef4ba2fb25", "evidence": {"same_day": true, "patch_ids": ["5cf11831d4da5ade7bf49e7df6741c06", "c8f27688ed48f73fa477355451a4d409"], "statement_hash": "f75869cb85facb2f36714af3f1d39c5deaf952daf8dd097d0129d12e6377a349"}}, {"rule": 2, "type": "equivalent", "target": "7bd9f9ced63230b2f77829dd09883005", "evidence": {"same_day": true, "patch_ids": ["5cf11831d4da5ade7bf49e7df6741c06", "c8f27688ed48f73fa477355451a4d409"], "statement_hash": "f75869cb85facb2f36714af3f1d39c5deaf952daf8dd097d0129d12e6377a349"}}, {"rule": 2, "type": "equivalent", "target": "a59f3a9c24e176910d3bc6430f5b6975", "evidence": {"same_day": true, "patch_ids": ["5cf11831d4da5ade7bf49e7df6741c06", "c8f27688ed48f73fa477355451a4d409"], "statement_hash": "f75869cb85facb2f36714af3f1d39c5deaf952daf8dd097d0129d12e6377a349"}}, {"rule": 2, "type": "equivalent", "target": "d8d7c303d6e9004f3000a0044f0af608", "evidence": {"same_day": true, "patch_ids": ["5cf11831d4da5ade7bf49e7df6741c06", "c8f27688ed48f73fa477355451a4d409"], "statement_hash": "f75869cb85facb2f36714af3f1d39c5deaf952daf8dd097d0129d12e6377a349"}}], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "121c4887d61f8657a3464fef4ba2fb25", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "修复 PL/Python 错误报告中的边缘场景资源泄漏", "evidence": {"same_day": true, "patch_ids": ["5cf11831d4da5ade7bf49e7df6741c06", "c8f27688ed48f73fa477355451a4d409"], "statement_hash": "f75869cb85facb2f36714af3f1d39c5deaf952daf8dd097d0129d12e6377a349"}, "url": "/docs/compare/?release=16.10#16.10-a6725b33673c4dfd", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "7bd9f9ced63230b2f77829dd09883005", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "修复 PL/Python 错误报告中的边缘场景资源泄漏", "evidence": {"same_day": true, "patch_ids": ["5cf11831d4da5ade7bf49e7df6741c06", "c8f27688ed48f73fa477355451a4d409"], "statement_hash": "f75869cb85facb2f36714af3f1d39c5deaf952daf8dd097d0129d12e6377a349"}, "url": "/docs/compare/?release=15.14#15.14-a6725b33673c4dfd", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "a59f3a9c24e176910d3bc6430f5b6975", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "修复 PL/Python 错误报告中的边缘场景资源泄漏", "evidence": {"same_day": true, "patch_ids": ["5cf11831d4da5ade7bf49e7df6741c06", "c8f27688ed48f73fa477355451a4d409"], "statement_hash": "f75869cb85facb2f36714af3f1d39c5deaf952daf8dd097d0129d12e6377a349"}, "url": "/docs/compare/?release=14.19#14.19-a6725b33673c4dfd", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "d8d7c303d6e9004f3000a0044f0af608", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "修复 PL/Python 错误报告中的边界情况资源泄漏", "evidence": {"same_day": true, "patch_ids": ["5cf11831d4da5ade7bf49e7df6741c06", "c8f27688ed48f73fa477355451a4d409"], "statement_hash": "f75869cb85facb2f36714af3f1d39c5deaf952daf8dd097d0129d12e6377a349"}, "url": "/docs/compare/?release=13.22#13.22-413a0c641b1e54a6", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-806e3ab8c7eb6992", "cves": [], "html": "修复当服务器地址使用 hostaddr 指定时 libpq 的 PQcancelCreate() 函数（Sergei Kornilov）§
如果实际使用生成出的 cancel 对象，libpq 就会崩溃。
", "text": "修复当服务器地址使用 hostaddr 指定时 libpq 的 PQcancelCreate() 函数（Sergei Kornilov）§ 如果实际使用生成出的 cancel 对象，libpq 就会崩溃。", "title": "修复当服务器地址使用 hostaddr 指定时 libpq 的 PQcancelCreate() 函数", "commits": ["445bd37b1"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "8a6ee1491996092be3fb44202ac19a1721373e87c5a9fe370174a459baecf26e", "section_path": ["变更"], "commit_groups": [["445bd37b1", "5d0800000", "fe05430ac"]], "identity_text": "Fix libpq's PQcancelCreate() function for the case where the server's address was specified using hostaddr (Sergei Kornilov) libpq would crash if the resulting cancel object was actually used.", "commit_aliases": ["445bd37b1", "5d0800000", "fe05430ac"], "source_commits": ["445bd37b1"], "source_entry_id": "17.6/changes/041", "db_id": "7b91a8dece2baae0dcc16ddf111fa692", "patch_ids": ["fc0f1468782ebfbacca855f120f79c0b"], "statement_hash": "a68e3732ff29930c5b3829d1a5d17f9161b312a089661f294d04f56a68fb6243", "relations": [], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.6-419aac3386b26d61", "cves": [], "html": "修复 libpq 的 PQport() 函数，使其除非传入的连接为 NULL，否则永远不返回 NULL（Daniele Varrazzo）§
这是文档中记录的行为，但最近的 libpq 版本在用户未提供端口规范的某些情况下会返回 NULL。恢复到我们历史上在此类情况下返回空字符串的行为。（v18 及更高版本将返回编译时的默认端口号，通常是 \"5432\"。）
避免当 GSSAPI 认证需要大于 16kB 的数据包时发生失败（Jacob Champion, Tom Lane）§
\n属于许多 AD 组的 Active Directory 用户需要更大的认证数据包。这个限制表现为连接失败，并伴随难以理解的错误消息，典型如 “GSSAPI context establishment error: The routine must be called again to complete its function: Unknown error”。
", "text": "避免当 GSSAPI 认证需要大于 16kB 的数据包时发生失败（Jacob Champion, Tom Lane）§ 属于许多 AD 组的 Active Directory 用户需要更大的认证数据包。这个限制表现为连接失败，并伴随难以理解的错误消息，典型如 “GSSAPI context establishment error: The routine must be called again to complete its function: Unknown error”。", "title": "避免当 GSSAPI 认证需要大于 16kB 的数据包时发生失败", "commits": ["8b0aa7a6b"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "2ba39a15055d73d70f902a610651407ef8a7cc089261ea6daa1ea1a71d5803f4", "section_path": ["变更"], "commit_groups": [["39b1d1907", "8b0aa7a6b", "a7da7914c", "c81cdffa1", "ca70ee6ed", "d98cefe11"]], "identity_text": "Avoid failure when GSSAPI authentication requires packets larger than 16kB (Jacob Champion, Tom Lane) Larger authentication packets are needed for Active Directory users who belong to many AD groups. This limitation manifested in connection failures with unintelligible error messages, typically GSSAPI context establishment error: The routine must be called again to complete its function: Unknown error.", "commit_aliases": ["39b1d1907", "8b0aa7a6b", "a7da7914c", "c81cdffa1", "ca70ee6ed", "d98cefe11"], "source_commits": ["8b0aa7a6b"], "source_entry_id": "17.6/changes/043", "db_id": "b27004bcb4025cb1b78f1c6da56dfa0b", "patch_ids": ["9c20b9b4b2c08812604c728f7be2d15b"], "statement_hash": "8ad10d845dd2a1af9acb44e8c0342e6dc940ebc316bfde0b3a2aa80cf2cb7cb8", "relations": [{"rule": 2, "type": "equivalent", "target": "7300bf02d776a30a653f81d4f6a5a388", "evidence": {"same_day": true, "patch_ids": ["9c20b9b4b2c08812604c728f7be2d15b"], "statement_hash": "8ad10d845dd2a1af9acb44e8c0342e6dc940ebc316bfde0b3a2aa80cf2cb7cb8"}}, {"rule": 2, "type": "equivalent", "target": "7820aee942c64c2a8567cfaf5be7fa18", "evidence": {"same_day": true, "patch_ids": ["9c20b9b4b2c08812604c728f7be2d15b"], "statement_hash": "8ad10d845dd2a1af9acb44e8c0342e6dc940ebc316bfde0b3a2aa80cf2cb7cb8"}}, {"rule": 2, "type": "equivalent", "target": "9e00b81c508cc2a7f6f923228653c3a4", "evidence": {"same_day": true, "patch_ids": ["9c20b9b4b2c08812604c728f7be2d15b"], "statement_hash": "8ad10d845dd2a1af9acb44e8c0342e6dc940ebc316bfde0b3a2aa80cf2cb7cb8"}}, {"rule": 2, "type": "equivalent", "target": "c82e55570034a30cbd865d2af345ca08", "evidence": {"same_day": true, "patch_ids": ["9c20b9b4b2c08812604c728f7be2d15b"], "statement_hash": "8ad10d845dd2a1af9acb44e8c0342e6dc940ebc316bfde0b3a2aa80cf2cb7cb8"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "9e00b81c508cc2a7f6f923228653c3a4", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "避免当 GSSAPI 认证需要大于 16kB 的数据包时发生失败", "evidence": {"same_day": true, "patch_ids": ["9c20b9b4b2c08812604c728f7be2d15b"], "statement_hash": "8ad10d845dd2a1af9acb44e8c0342e6dc940ebc316bfde0b3a2aa80cf2cb7cb8"}, "url": "/docs/compare/?release=16.10#16.10-54c912da6b719fe3", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "7300bf02d776a30a653f81d4f6a5a388", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "避免当 GSSAPI 认证需要大于 16kB 的数据包时发生失败", "evidence": {"same_day": true, "patch_ids": ["9c20b9b4b2c08812604c728f7be2d15b"], "statement_hash": "8ad10d845dd2a1af9acb44e8c0342e6dc940ebc316bfde0b3a2aa80cf2cb7cb8"}, "url": "/docs/compare/?release=15.14#15.14-54c912da6b719fe3", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "c82e55570034a30cbd865d2af345ca08", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "避免当 GSSAPI 认证需要大于 16kB 的数据包时发生失败", "evidence": {"same_day": true, "patch_ids": ["9c20b9b4b2c08812604c728f7be2d15b"], "statement_hash": "8ad10d845dd2a1af9acb44e8c0342e6dc940ebc316bfde0b3a2aa80cf2cb7cb8"}, "url": "/docs/compare/?release=14.19#14.19-54c912da6b719fe3", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "7820aee942c64c2a8567cfaf5be7fa18", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "避免当 GSSAPI 认证需要大于 16kB 的数据包时出现失败", "evidence": {"same_day": true, "patch_ids": ["9c20b9b4b2c08812604c728f7be2d15b"], "statement_hash": "8ad10d845dd2a1af9acb44e8c0342e6dc940ebc316bfde0b3a2aa80cf2cb7cb8"}, "url": "/docs/compare/?release=13.22#13.22-1886d08a644dc5f5", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-9af21c705af4d5f8", "cves": [], "html": "修复 SSL 和 GSSAPI 数据传输中依赖时序的失败问题（Tom Lane）§
\n在非阻塞模式下使用 SSL 或 GSSAPI 加密时，libpq 有时会因 “SSL error: bad length” 或 “GSSAPI caller failed to retransmit all data needing to be retried” 而失败。
", "text": "修复 SSL 和 GSSAPI 数据传输中依赖时序的失败问题（Tom Lane）§ 在非阻塞模式下使用 SSL 或 GSSAPI 加密时，libpq 有时会因 “SSL error: bad length” 或 “GSSAPI caller failed to retransmit all data needing to be retried” 而失败。", "title": "修复 SSL 和 GSSAPI 数据传输中依赖时序的失败问题", "commits": ["30e0d9ee9"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "625536b177822787ff48a1f7a3bcbcc6bb9cb135bdc45225b72a18e6ca27d32c", "section_path": ["变更"], "commit_groups": [["0703c9385", "137935bd1", "30e0d9ee9", "3f37400cf", "6a4d93eda", "f09fea386"]], "identity_text": "Fix timing-dependent failures in SSL and GSSAPI data transmission (Tom Lane) When using SSL or GSSAPI encryption in non-blocking mode, libpq sometimes failed with SSL error: bad length or GSSAPI caller failed to retransmit all data needing to be retried.", "commit_aliases": ["0703c9385", "137935bd1", "30e0d9ee9", "3f37400cf", "6a4d93eda", "f09fea386"], "source_commits": ["30e0d9ee9"], "source_entry_id": "17.6/changes/044", "db_id": "d010cc5adac641dffac3aed8ba5f7474", "patch_ids": ["e183c726a0fffa9d700ae85c61737795"], "statement_hash": "015f735f627c918db73975bc3adfcd018dac06b111e2255f97539dcc28ac660e", "relations": [{"rule": 2, "type": "equivalent", "target": "04840f3ea21539bdfa095da3739fcb25", "evidence": {"same_day": true, "patch_ids": ["e183c726a0fffa9d700ae85c61737795"], "statement_hash": "015f735f627c918db73975bc3adfcd018dac06b111e2255f97539dcc28ac660e"}}, {"rule": 2, "type": "equivalent", "target": "1d6ac0ef9bac20774b2c00cab64bd3be", "evidence": {"same_day": true, "patch_ids": ["e183c726a0fffa9d700ae85c61737795"], "statement_hash": "015f735f627c918db73975bc3adfcd018dac06b111e2255f97539dcc28ac660e"}}, {"rule": 2, "type": "equivalent", "target": "de0fc953d8bee77e15871a1af804690e", "evidence": {"same_day": true, "patch_ids": ["e183c726a0fffa9d700ae85c61737795"], "statement_hash": "015f735f627c918db73975bc3adfcd018dac06b111e2255f97539dcc28ac660e"}}, {"rule": 2, "type": "equivalent", "target": "e364d96f10953f914f581ed71ca42059", "evidence": {"same_day": true, "patch_ids": ["e183c726a0fffa9d700ae85c61737795"], "statement_hash": "015f735f627c918db73975bc3adfcd018dac06b111e2255f97539dcc28ac660e"}}], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "04840f3ea21539bdfa095da3739fcb25", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "修复 SSL 和 GSSAPI 数据传输中依赖时序的失败问题", "evidence": {"same_day": true, "patch_ids": ["e183c726a0fffa9d700ae85c61737795"], "statement_hash": "015f735f627c918db73975bc3adfcd018dac06b111e2255f97539dcc28ac660e"}, "url": "/docs/compare/?release=16.10#16.10-9af21c705af4d5f8", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "de0fc953d8bee77e15871a1af804690e", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "修复 SSL 和 GSSAPI 数据传输中依赖时序的失败问题", "evidence": {"same_day": true, "patch_ids": ["e183c726a0fffa9d700ae85c61737795"], "statement_hash": "015f735f627c918db73975bc3adfcd018dac06b111e2255f97539dcc28ac660e"}, "url": "/docs/compare/?release=15.14#15.14-9af21c705af4d5f8", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "e364d96f10953f914f581ed71ca42059", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "修复 SSL 和 GSSAPI 数据传输中依赖时序的失败问题", "evidence": {"same_day": true, "patch_ids": ["e183c726a0fffa9d700ae85c61737795"], "statement_hash": "015f735f627c918db73975bc3adfcd018dac06b111e2255f97539dcc28ac660e"}, "url": "/docs/compare/?release=14.19#14.19-9af21c705af4d5f8", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "1d6ac0ef9bac20774b2c00cab64bd3be", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "修复 SSL 和 GSSAPI 数据传输中的时序相关故障", "evidence": {"same_day": true, "patch_ids": ["e183c726a0fffa9d700ae85c61737795"], "statement_hash": "015f735f627c918db73975bc3adfcd018dac06b111e2255f97539dcc28ac660e"}, "url": "/docs/compare/?release=13.22#13.22-f6bbf052847a01b1", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-ace06bba210ed921", "cves": [], "html": "避免在 ecpg 应用程序中连接查找时的空指针解引用（Aleksander Alekseev）§
\n这种情况只有在应用程序同时存在命名连接和未命名连接时才会发生。
", "text": "避免在 ecpg 应用程序中连接查找时的空指针解引用（Aleksander Alekseev）§ 这种情况只有在应用程序同时存在命名连接和未命名连接时才会发生。", "title": "避免在 ecpg 应用程序中连接查找时的空指针解引用", "commits": ["2805e1c1e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "98a9f78dd2a5e62c1bcf13ab69bc7cd6b0d716704f82bea4d4baa00e581dffca", "section_path": ["变更"], "commit_groups": [["0123922f8", "0ded7615d", "1b8bbee05", "2805e1c1e", "313d3102f", "408fe659a", "c934d5673"]], "identity_text": "Avoid null-pointer dereference during connection lookup in ecpg applications (Aleksander Alekseev) The case could occur only if the application has some connections that are named and some that are not.", "commit_aliases": ["0123922f8", "0ded7615d", "1b8bbee05", "2805e1c1e", "313d3102f", "408fe659a", "c934d5673"], "source_commits": ["2805e1c1e"], "source_entry_id": "17.6/changes/045", "db_id": "0e5689dc80c41e5a07f881c3214651be", "patch_ids": ["7e30860afd34973682c127264cf991de"], "statement_hash": "477d5885e1c686592690701f5f4bac9c9e9a9feca03c0681f6d99864acb0b757", "relations": [{"rule": 2, "type": "equivalent", "target": "74f7fa790d8f233acb9e91bb461d382d", "evidence": {"same_day": true, "patch_ids": ["7e30860afd34973682c127264cf991de"], "statement_hash": "477d5885e1c686592690701f5f4bac9c9e9a9feca03c0681f6d99864acb0b757"}}, {"rule": 2, "type": "equivalent", "target": "b1e3dd4bb95eeb22b39aa772f9b7733f", "evidence": {"same_day": true, "patch_ids": ["7e30860afd34973682c127264cf991de"], "statement_hash": "477d5885e1c686592690701f5f4bac9c9e9a9feca03c0681f6d99864acb0b757"}}, {"rule": 2, "type": "equivalent", "target": "bd611f9600cb9924f8bce02d7d4c0977", "evidence": {"same_day": true, "patch_ids": ["7e30860afd34973682c127264cf991de"], "statement_hash": "477d5885e1c686592690701f5f4bac9c9e9a9feca03c0681f6d99864acb0b757"}}, {"rule": 2, "type": "equivalent", "target": "ee9f5bbf431109d52dafe780173275ce", "evidence": {"same_day": true, "patch_ids": ["7e30860afd34973682c127264cf991de"], "statement_hash": "477d5885e1c686592690701f5f4bac9c9e9a9feca03c0681f6d99864acb0b757"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "bd611f9600cb9924f8bce02d7d4c0977", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "避免在 ecpg 应用程序中连接查找时的空指针解引用", "evidence": {"same_day": true, "patch_ids": ["7e30860afd34973682c127264cf991de"], "statement_hash": "477d5885e1c686592690701f5f4bac9c9e9a9feca03c0681f6d99864acb0b757"}, "url": "/docs/compare/?release=16.10#16.10-436c939fcf191f10", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "ee9f5bbf431109d52dafe780173275ce", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "避免在 ecpg 应用程序中连接查找时的空指针解引用", "evidence": {"same_day": true, "patch_ids": ["7e30860afd34973682c127264cf991de"], "statement_hash": "477d5885e1c686592690701f5f4bac9c9e9a9feca03c0681f6d99864acb0b757"}, "url": "/docs/compare/?release=15.14#15.14-3f9dc3f7e6fef39f", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "74f7fa790d8f233acb9e91bb461d382d", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "避免在 ecpg 应用程序中连接查找时的空指针解引用", "evidence": {"same_day": true, "patch_ids": ["7e30860afd34973682c127264cf991de"], "statement_hash": "477d5885e1c686592690701f5f4bac9c9e9a9feca03c0681f6d99864acb0b757"}, "url": "/docs/compare/?release=14.19#14.19-3ad342512bbab551", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "b1e3dd4bb95eeb22b39aa772f9b7733f", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "避免在 ecpg 应用程序中连接查找时的空指针解引用", "evidence": {"same_day": true, "patch_ids": ["7e30860afd34973682c127264cf991de"], "statement_hash": "477d5885e1c686592690701f5f4bac9c9e9a9feca03c0681f6d99864acb0b757"}, "url": "/docs/compare/?release=13.22#13.22-9a92c3e1fe452c94", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-d2095553b4c88b05", "cves": [], "html": "改进 psql 对 COPY 和 \\copy 选项的 tab 补全（Atsushi Torikoshi）§
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", "text": "避免 pgbench 在收到多个管道同步消息时的断言失败（Fujii Masao）§", "title": "避免 pgbench 在收到多个管道同步消息时的断言失败", "commits": ["398e07162"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "6ac28887e8101842dee999a0c6fc8a51e68cfca1f92dd98d258d8f049b35c06b", "section_path": ["变更"], "commit_groups": [["12efa4897", "1d3ded521", "398e07162", "6914a330f", "fee46ab4f"]], "identity_text": "Avoid assertion failure in pgbench when multiple pipeline sync messages are received (Fujii Masao)", "commit_aliases": ["12efa4897", "1d3ded521", "398e07162", "6914a330f", "fee46ab4f"], "source_commits": ["398e07162"], "source_entry_id": "17.6/changes/047", "db_id": "f4a1b1ed53f7b885e9f2b2becba2ab00", "patch_ids": ["19b639fe4d33b8bce8bda383e04a89cd"], "statement_hash": "36e5b7abb1f2b115dae169d13878250bea7858f93407d63d17e44c97a41c4bec", "relations": [{"rule": 2, "type": "equivalent", "target": "7d453af64b5902956ceb911122e2a92d", "evidence": {"same_day": true, "patch_ids": ["19b639fe4d33b8bce8bda383e04a89cd"], "statement_hash": "36e5b7abb1f2b115dae169d13878250bea7858f93407d63d17e44c97a41c4bec"}}, {"rule": 2, "type": "equivalent", "target": "896d621c2d0b8712989fae86e6d66ce3", "evidence": {"same_day": true, "patch_ids": ["19b639fe4d33b8bce8bda383e04a89cd"], "statement_hash": "36e5b7abb1f2b115dae169d13878250bea7858f93407d63d17e44c97a41c4bec"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "896d621c2d0b8712989fae86e6d66ce3", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "避免 pgbench 在收到多个管道同步消息时的断言失败", "evidence": {"same_day": true, "patch_ids": ["19b639fe4d33b8bce8bda383e04a89cd"], "statement_hash": "36e5b7abb1f2b115dae169d13878250bea7858f93407d63d17e44c97a41c4bec"}, "url": "/docs/compare/?release=16.10#16.10-498bb3fac77791ea", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "7d453af64b5902956ceb911122e2a92d", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "避免 pgbench 在收到多个管道同步消息时的断言失败", "evidence": {"same_day": true, "patch_ids": ["19b639fe4d33b8bce8bda383e04a89cd"], "statement_hash": "36e5b7abb1f2b115dae169d13878250bea7858f93407d63d17e44c97a41c4bec"}, "url": "/docs/compare/?release=15.14#15.14-f6956659a53d0498", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}]}, {"id": "17.6-d81f7b71f062e985", "cves": [], "html": "修复使用 pg_createsubscriber 初始化订阅时事务被重复回放的问题（Shlok Kyal）§
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", "text": "修复使用 pg_createsubscriber 初始化订阅时事务被重复回放的问题（Shlok Kyal）§ 在订阅者恢复期间处理的最后一个事务，有可能会在正常复制开始后再次被发送。", "title": "修复使用 pg_createsubscriber 初始化订阅时事务被重复回放的问题", "commits": ["967309116"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "223e6b5c70f2c316551ad4b3a533f004850df365ed5162b4c1a6d1a174c258fc", "section_path": ["变更"], "commit_groups": [["33f74b806", "967309116", "e1c365483"]], "identity_text": "Fix duplicate transaction replay when initializing a subscription with pg_createsubscriber (Shlok Kyal) It was possible for the last transaction processed during subscriber recovery to be sent again once normal replication begins.", "commit_aliases": ["33f74b806", "967309116", "e1c365483"], "source_commits": ["967309116"], "source_entry_id": "17.6/changes/048", "db_id": "4ecc98856f978ca7afcf616cfd33ed4c", "patch_ids": ["35a97e08bd290eaeda95ef9ba74bbde6"], "statement_hash": "3288068a5b75d54fff9f5cde68c2ff73a954ee0a918639362f15febfd0f9a2f3", "relations": [], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.6-93bdfaf60686080b", "cves": [], "html": "确保 pg_dump 转储域类型上非空约束的注释（Jian He, Álvaro Herrera）§
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", "text": "确保 pg_dump 以有效的顺序导出域约束上的注释（Jian He）§ 在某些情况下，注释命令可能出现在约束创建之前。", "title": "确保 pg_dump 以有效的顺序导出域约束上的注释", "commits": ["d07bc7c2b"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "6b61dc1a9048328b453989660f34e31ca8bc8be5e85d543ed0752fbb79bbb4ce", "section_path": ["变更"], "commit_groups": [["0858f0f96", "57949cea5", "5a261c135", "cef998ef8", "d07bc7c2b", "dca0e9693", "e04aca1c4"]], "identity_text": "Ensure that pg_dump dumps comments on domain constraints in a valid order (Jian He) In some cases the comment command could appear before creation of the constraint.", "commit_aliases": ["0858f0f96", "57949cea5", "5a261c135", "cef998ef8", "d07bc7c2b", "dca0e9693", "e04aca1c4"], "source_commits": ["d07bc7c2b"], "source_entry_id": "17.6/changes/050", "db_id": "918b4f5a1b00861852fd876427a02929", "patch_ids": ["46c6b17393f1c6e6833de5af16652620"], "statement_hash": "2a4ac5cc4a8c9cf0a63bf26f29d7fe12de34db67682fafcd654babc102897f0d", "relations": [{"rule": 2, "type": "equivalent", "target": "2cf505b63956338ef28e430678d6e683", "evidence": {"same_day": true, "patch_ids": ["46c6b17393f1c6e6833de5af16652620"], "statement_hash": "2a4ac5cc4a8c9cf0a63bf26f29d7fe12de34db67682fafcd654babc102897f0d"}}, {"rule": 2, "type": "equivalent", "target": "47c2db510c8e651ce08cb19eea7a186e", "evidence": {"same_day": true, "patch_ids": ["46c6b17393f1c6e6833de5af16652620"], "statement_hash": "2a4ac5cc4a8c9cf0a63bf26f29d7fe12de34db67682fafcd654babc102897f0d"}}, {"rule": 2, "type": "equivalent", "target": "c9cc63af5a74aeb8bb235d5cfa603f64", "evidence": {"same_day": true, "patch_ids": ["46c6b17393f1c6e6833de5af16652620"], "statement_hash": "2a4ac5cc4a8c9cf0a63bf26f29d7fe12de34db67682fafcd654babc102897f0d"}}, {"rule": 2, "type": "equivalent", "target": "d262bfebe0ddaae5fe67a919cbfc48a1", "evidence": {"same_day": true, "patch_ids": ["46c6b17393f1c6e6833de5af16652620"], "statement_hash": "2a4ac5cc4a8c9cf0a63bf26f29d7fe12de34db67682fafcd654babc102897f0d"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "d262bfebe0ddaae5fe67a919cbfc48a1", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "确保 pg_dump 以有效的顺序导出域约束上的注释", "evidence": {"same_day": true, "patch_ids": ["46c6b17393f1c6e6833de5af16652620"], "statement_hash": "2a4ac5cc4a8c9cf0a63bf26f29d7fe12de34db67682fafcd654babc102897f0d"}, "url": "/docs/compare/?release=16.10#16.10-530b5686b1f7d60d", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "47c2db510c8e651ce08cb19eea7a186e", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "确保 pg_dump 以有效的顺序导出域约束上的注释", "evidence": {"same_day": true, "patch_ids": ["46c6b17393f1c6e6833de5af16652620"], "statement_hash": "2a4ac5cc4a8c9cf0a63bf26f29d7fe12de34db67682fafcd654babc102897f0d"}, "url": "/docs/compare/?release=15.14#15.14-2b9eabf786c88d61", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "c9cc63af5a74aeb8bb235d5cfa603f64", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "确保 pg_dump 以有效的顺序导出域约束上的注释", "evidence": {"same_day": true, "patch_ids": ["46c6b17393f1c6e6833de5af16652620"], "statement_hash": "2a4ac5cc4a8c9cf0a63bf26f29d7fe12de34db67682fafcd654babc102897f0d"}, "url": "/docs/compare/?release=14.19#14.19-a4cc3cc741c765b4", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "2cf505b63956338ef28e430678d6e683", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "确保 pg_dump 以有效的顺序导出域约束上的注释", "evidence": {"same_day": true, "patch_ids": ["46c6b17393f1c6e6833de5af16652620"], "statement_hash": "2a4ac5cc4a8c9cf0a63bf26f29d7fe12de34db67682fafcd654babc102897f0d"}, "url": "/docs/compare/?release=13.22#13.22-5426c8941d84d497", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-1f0b02d913052611", "cves": [], "html": "确保 pg_dump 对所有类型的数据库对象具有稳定的排序顺序（Noah Misch、Andreas Karlsson）§ § §
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", "text": "确保 pg_dump 对所有类型的数据库对象具有稳定的排序顺序（Noah Misch、Andreas Karlsson）§ § § pg_dump 在执行依赖关系驱动的重新排序之前，按逻辑名称对对象进行排序。此排序未考虑标识某些对象类型（如规则和约束）的完整唯一键，因此对于逻辑上相同的数据库可能产生不同的排序顺序。这使得通过比较 pg_dump 输出的 diff 来比较数据库变得困难，因此改进了逻辑以确保在所有情况下排序顺序都是稳定的。", "title": "确保 pg_dump 对所有类型的数据库对象具有稳定的排序顺序", "commits": ["1ca1889ea", "28e7252e4", "5dd4957b2"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "d59767c8a963d291bccbd892f2cbbd70623a5cf61a94a4e10849c464dce1e278", "section_path": ["变更"], "commit_groups": [["04bc2c42f", "0ac1581c3", "0decd5e89", "1ca1889ea", "22f126da6", "7ee7c1cd3", "c0ae03384"], ["0d2734eac", "216683296", "28e7252e4", "70637d7ae", "7846f4709", "bc05590c7"], ["25388fb2c", "350e6b8ea", "5dd4957b2", "9affed263", "cc9a62c51", "e99010cbd"]], "identity_text": "Ensure stable sort ordering in pg_dump for all types of database objects (Noah Misch, Andreas Karlsson) pg_dump sorts objects by their logical names before performing dependency-driven reordering. 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pg_restore 无法从 PostgreSQL v12 之前的 pg_dump 版本生成的目录格式转储中恢复大对象（BLOB）（Pavel Stehule）§
", "text": "pg_restore 无法从 PostgreSQL v12 之前的 pg_dump 版本生成的目录格式转储中恢复大对象（BLOB）（Pavel Stehule）§", "title": "pg_restore 无法从 PostgreSQL v12 之前的 pg_dump 版本生成的目录格式转储中恢复大对象（BLOB）", "commits": ["839802792"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "9d4969a8440ae4eb9c3848b3df9fa4722365045e709b1f70f9e990799346fcd8", "section_path": ["变更"], "commit_groups": [["166b4f456", "839802792"]], "identity_text": "pg_restore failed to restore large objects (BLOBs) from directory-format dumps made by pg_dump versions before PostgreSQL v12 (Pavel Stehule)", "commit_aliases": ["166b4f456", "839802792"], "source_commits": ["839802792"], "source_entry_id": "17.6/changes/053", "db_id": "a67c500d7c3efadeb1d3062bd6388b2c", "patch_ids": ["11984d9c16b9269b96b3f099208ccfa8"], "statement_hash": "eff30bc7efe82e729f8f88a0c280b596a2052f2b0cfa003d75ae9ceaf7c6a896", "relations": [], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.6-5e9367338f12dda3", "cves": [], "html": "在 pg_upgrade 中，检查不一致的继承非空约束（Ali Akbar）§ § §
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", "text": "在 pg_upgrade 中，检查不一致的继承非空约束（Ali Akbar）§ § § 18 之前的 PostgreSQL 版本允许删除继承列的非空约束。但是，这会导致无法恢复的模式，从而导致 pg_upgrade 失败。在 pg_upgrade 的预检查中检测此类情况，以便用户在启动升级之前修复它们。", "title": "在 pg_upgrade 中，检查不一致的继承非空约束", "commits": ["930e1faec", "b8b2e6052", "bcb8d47cd"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "4a34dcf295b4c061513c8222987c59765fffbd162f3c28eeac49daa1ca835694", "section_path": ["变更"], "commit_groups": [["05b367bea", "1084e76f3", "160131033", "1beda2c3c", "63c79a6fc", "930e1faec", "a00eb374c"], ["06f444816", "a8b31b160", "de7fd83cd", "ed2bb0cdd"], ["07da2985d", "0f4958685", "b0f0e2221", "b8b2e6052", "ea3386cc7", "f295494d3", "f63e408e8"], ["095e83d09", "18d2d8ae4", "bef2c2a4e"], ["144ad723a", "1e007722f", "708469281", "94dc2b37b", "bcb8d47cd", "bd48455d8", "f943e2339"], ["22d783350", "7406a7d82", "f9f6595e3"]], "identity_text": "In pg_upgrade, check for inconsistent inherited not-null constraints (Ali Akbar) PostgreSQL versions before 18 allow an inherited column not-null constraint to be dropped. 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"patch_ids": ["73ba3fc3ce745b77c99a24e3c5073661", "8c797fbdf29bd8e99e4302a07d193211", "8e4302b6ca6ce3feadff66ff28bb1f28", "a5b72471b30b3eb404df47248ecbb4a8", "a8889bddc0913a0d30d443a98f6d5d94", "cf4e26661260159e109aaaf9434aca59"], "statement_hash": "a66fa6e8b11c98e3ef34b9a9384b3c9ffe07c0edcc5a9b3cb22b196a70bff6c6"}, "url": "/docs/compare/?release=13.22#13.22-a00cc36cdb51bbba", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-e72cfe60a0dec8f3", "cves": [], "html": "在 pg_upgrade 期间，不再要求目标安装将 max_slot_wal_keep_size 设置为其默认值（Dilip Kumar）§
避免在 initdb 期间启用 track_commit_timestamp 时的断言失败（Hayato Kuroda、Andy Fan）§
修复 pg_waldump，使其显示 PREPARE TRANSACTION WAL 记录中被删除统计信息的相关内容（Daniil Davydov）§
避免在 contrib/dblink 建立连接期间可能泄漏已打开的连接（Tom Lane）§
在罕见情况下，如果我们在将新连接对象插入 dblink 的 hash 表时遇到内存耗尽，那么该已打开的连接就会一直泄漏到会话结束，并在远程服务器上留下一个空闲会话。
", "text": "避免在 contrib/dblink 建立连接期间可能泄漏已打开的连接（Tom Lane）§ 在罕见情况下，如果我们在将新连接对象插入 dblink 的 hash 表时遇到内存耗尽，那么该已打开的连接就会一直泄漏到会话结束，并在远程服务器上留下一个空闲会话。", "title": "避免在 contrib/dblink 建立连接期间可能泄漏已打开的连接", "commits": ["e20b3256a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "9a3f9afb760442df3fdcb30be13367ca19d805e94783824cc75a275e6bca2484", "section_path": ["变更"], "commit_groups": [["09c9ae8f6", "2cd2222ca", "470273da0", "8eef55db1", "e20b3256a", "e7d3d4ed4"]], "identity_text": "Avoid possible leak of the open connection during contrib/dblink connection establishment (Tom Lane) In the rare scenario where we hit out-of-memory while inserting the new connection object into dblink's hashtable, the open connection would be leaked until end of session, leaving an idle session sitting on the remote server.", "commit_aliases": ["09c9ae8f6", "2cd2222ca", "470273da0", "8eef55db1", "e20b3256a", "e7d3d4ed4"], "source_commits": ["e20b3256a"], "source_entry_id": "17.6/changes/058", "db_id": "83b885660d0c7021b04075e3d44ddf9f", "patch_ids": ["ad074126925151af6358b1f754025008"], "statement_hash": "148946de905374f137eaedfd628dc86633d940c23860153ff88258623ff724da", "relations": [{"rule": 2, "type": "equivalent", "target": "2f55da59aa4982efff6c020c3bd04d77", "evidence": {"same_day": true, "patch_ids": ["ad074126925151af6358b1f754025008"], "statement_hash": "148946de905374f137eaedfd628dc86633d940c23860153ff88258623ff724da"}}, {"rule": 2, "type": "equivalent", "target": "45566aab861f4620b7be99226b573be5", "evidence": {"same_day": true, "patch_ids": ["ad074126925151af6358b1f754025008"], "statement_hash": "148946de905374f137eaedfd628dc86633d940c23860153ff88258623ff724da"}}, {"rule": 2, "type": "equivalent", "target": "a7bc5346dd90d175c498a49d712e2774", "evidence": {"same_day": true, "patch_ids": ["ad074126925151af6358b1f754025008"], "statement_hash": "148946de905374f137eaedfd628dc86633d940c23860153ff88258623ff724da"}}, {"rule": 2, "type": "equivalent", "target": "c897943d3fd9af5a4d22c4a7d504ba01", "evidence": {"same_day": true, "patch_ids": ["ad074126925151af6358b1f754025008"], "statement_hash": "148946de905374f137eaedfd628dc86633d940c23860153ff88258623ff724da"}}], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "c897943d3fd9af5a4d22c4a7d504ba01", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "避免在 contrib/dblink 建立连接期间可能泄漏已打开的连接", "evidence": {"same_day": true, "patch_ids": ["ad074126925151af6358b1f754025008"], "statement_hash": "148946de905374f137eaedfd628dc86633d940c23860153ff88258623ff724da"}, "url": "/docs/compare/?release=16.10#16.10-a0d8c81779538197", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "2f55da59aa4982efff6c020c3bd04d77", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "避免在 contrib/dblink 建立连接期间可能泄漏已打开的连接", "evidence": {"same_day": true, "patch_ids": ["ad074126925151af6358b1f754025008"], "statement_hash": "148946de905374f137eaedfd628dc86633d940c23860153ff88258623ff724da"}, "url": "/docs/compare/?release=15.14#15.14-a0d8c81779538197", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "45566aab861f4620b7be99226b573be5", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "避免在 contrib/dblink 建立连接期间可能泄漏已打开的连接", "evidence": {"same_day": true, "patch_ids": ["ad074126925151af6358b1f754025008"], "statement_hash": "148946de905374f137eaedfd628dc86633d940c23860153ff88258623ff724da"}, "url": "/docs/compare/?release=14.19#14.19-a0d8c81779538197", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "a7bc5346dd90d175c498a49d712e2774", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "避免在 contrib/dblink 连接建立过程中可能泄漏已打开的连接", "evidence": {"same_day": true, "patch_ids": ["ad074126925151af6358b1f754025008"], "statement_hash": "148946de905374f137eaedfd628dc86633d940c23860153ff88258623ff724da"}, "url": "/docs/compare/?release=13.22#13.22-d416439a5881d3b2", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-8f5065b37a2ab1c3", "cves": [], "html": "使 contrib/pg_prewarm 能够处理非常大的 shared_buffers 设置（Daria Shanina）§
如果 shared_buffers 大于约 5000 万个缓冲区（400GB），autoprewarm 就会因内存分配错误而失败。
防止 contrib/pg_prewarm 中出现断言失败（Masahiro Ikeda）§
将 pg_prewarm() 应用于缺少存储的关系（如视图）时会导致断言失败，尽管在非断言构建中并无实际副作用。现已增加错误检查以拒绝这种情况。
在 contrib/pg_stat_statements 中，避免在规范化查询中使用的参数编号出现间隔（Sami Imseih）§
修复 contrib/postgres_fdw 的 DirectModify 方法中的内存泄漏（Tom Lane）§
如果查询在 DirectModify 方法两次调用之间失败，那么保存远程修改命令结果的 PGresult 就会在该会话剩余时间内泄漏；当存在 RETURNING 数据需要处理时，就可能发生这种情况。
确保 configure 的 --with-includes 和 --with-libraries 选项中列出的目录在系统提供的目录之前被搜索（Tom Lane）§
使用这些选项的一个常见原因是允许用户自行构建的库版本覆盖系统提供的版本。然而，在某些环境中，由于 makefile 中发出的命令中开关顺序不当，这无法正常工作。
", "text": "确保 configure 的 --with-includes 和 --with-libraries 选项中列出的目录在系统提供的目录之前被搜索（Tom Lane）§ 使用这些选项的一个常见原因是允许用户自行构建的库版本覆盖系统提供的版本。然而，在某些环境中，由于 makefile 中发出的命令中开关顺序不当，这无法正常工作。", "title": "确保 configure 的 --with-includes 和 --with-libraries 选项中列出的目录在系统提供的目录之前被搜索", "commits": ["a644f5fc6"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "cb0297fa4e3e14f87b8e3d68cf61210e9d7811ed3ffd36af7275c5f243748dca", "section_path": ["变更"], "commit_groups": [["19857437b", "2dee95bd0", "4300d8b6a", "8e5e3ff55", "a644f5fc6", "bbc20c8a9", "c5bd803e5"]], "identity_text": "Ensure that directories listed in configure's --with-includes and --with-libraries options are searched before system-supplied directories (Tom Lane) A common reason for using these options is to allow a user-built version of some library to override the system-supplied version. However, that failed to work in some environments because of careless ordering of switches in the commands issued by the makefiles.", "commit_aliases": ["19857437b", "2dee95bd0", "4300d8b6a", "8e5e3ff55", "a644f5fc6", "bbc20c8a9", "c5bd803e5"], "source_commits": ["a644f5fc6"], "source_entry_id": "17.6/changes/063", "db_id": "40190bd5de736e0d1c6dfae0661e59ae", "patch_ids": ["e06531c74199ac8287e60a478732f2a1"], "statement_hash": "3fe68075d2af5f66aa86cec9975bd83f6f8d380307c7a98a165429881d8ce3f6", "relations": [{"rule": 2, "type": "equivalent", "target": "61aa2ab6fe392516ba5d3d82dde9441c", "evidence": {"same_day": true, "patch_ids": ["e06531c74199ac8287e60a478732f2a1"], "statement_hash": "3fe68075d2af5f66aa86cec9975bd83f6f8d380307c7a98a165429881d8ce3f6"}}, {"rule": 2, "type": "equivalent", "target": "9a079b12c4aa18e17d2daefb8f82755d", "evidence": {"same_day": true, "patch_ids": ["e06531c74199ac8287e60a478732f2a1"], "statement_hash": "3fe68075d2af5f66aa86cec9975bd83f6f8d380307c7a98a165429881d8ce3f6"}}, {"rule": 2, "type": "equivalent", "target": "dddc18a83ab3fb87426d5cf379c1808e", "evidence": {"same_day": true, "patch_ids": ["e06531c74199ac8287e60a478732f2a1"], "statement_hash": "3fe68075d2af5f66aa86cec9975bd83f6f8d380307c7a98a165429881d8ce3f6"}}, {"rule": 2, "type": "equivalent", "target": "f4e258f01fdb78e9599679037ae1dfde", "evidence": {"same_day": true, "patch_ids": ["e06531c74199ac8287e60a478732f2a1"], "statement_hash": "3fe68075d2af5f66aa86cec9975bd83f6f8d380307c7a98a165429881d8ce3f6"}}], "version": "17.6", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "9a079b12c4aa18e17d2daefb8f82755d", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "确保 configure 的 --with-includes 和 --with-libraries 选项中列出的目录在系统提供的目录之前被搜索", "evidence": {"same_day": true, "patch_ids": ["e06531c74199ac8287e60a478732f2a1"], "statement_hash": "3fe68075d2af5f66aa86cec9975bd83f6f8d380307c7a98a165429881d8ce3f6"}, "url": "/docs/compare/?release=16.10#16.10-822bca3ae25fbb63", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "dddc18a83ab3fb87426d5cf379c1808e", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "确保 configure 的 --with-includes 和 --with-libraries 选项中列出的目录在系统提供的目录之前被搜索", "evidence": {"same_day": true, "patch_ids": ["e06531c74199ac8287e60a478732f2a1"], "statement_hash": "3fe68075d2af5f66aa86cec9975bd83f6f8d380307c7a98a165429881d8ce3f6"}, "url": "/docs/compare/?release=15.14#15.14-a8c2ab43f078c9f3", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "61aa2ab6fe392516ba5d3d82dde9441c", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "确保 configure 的 --with-includes 和 --with-libraries 选项中列出的目录在系统提供的目录之前被搜索", "evidence": {"same_day": true, "patch_ids": ["e06531c74199ac8287e60a478732f2a1"], "statement_hash": "3fe68075d2af5f66aa86cec9975bd83f6f8d380307c7a98a165429881d8ce3f6"}, "url": "/docs/compare/?release=14.19#14.19-786d3ef0017ef7a7", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "f4e258f01fdb78e9599679037ae1dfde", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "确保 configure 的 --with-includes 和 --with-libraries 选项中列出的目录在系统提供的目录之前被搜索", "evidence": {"same_day": true, "patch_ids": ["e06531c74199ac8287e60a478732f2a1"], "statement_hash": "3fe68075d2af5f66aa86cec9975bd83f6f8d380307c7a98a165429881d8ce3f6"}, "url": "/docs/compare/?release=13.22#13.22-78bdf9b34668a73f", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-eacaf1a246bba2ef", "cves": [], "html": "修复 configure 对 __cpuid() 和 __cpuidex() 的检测（Lukas Fittl、Michael Paquier）§
configure 未能检测到这些 Windows 特有的函数，因此它们不会被使用，导致 CRC 计算比必要的慢，因为无法验证硬件指令的可用性。此错误的实际影响有限，因为 Windows 的生产构建通常不使用 Autoconf 工具链。
", "text": "修复 configure 对 __cpuid() 和 __cpuidex() 的检测（Lukas Fittl、Michael Paquier）§ configure 未能检测到这些 Windows 特有的函数，因此它们不会被使用，导致 CRC 计算比必要的慢，因为无法验证硬件指令的可用性。此错误的实际影响有限，因为 Windows 的生产构建通常不使用 Autoconf 工具链。", "title": "修复 configure 对 __cpuid() 和 __cpuidex() 的检测", "commits": ["8de56323c"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "fae12d5a4390cd87b1f5cdd0da433b10952c57ec10c199988af7f36d5eeb2924", "section_path": ["变更"], "commit_groups": [["1a5212775", "60953d4cb", "612f5b806", "8de56323c", "c1984be23", "cd2d52cc6", "d6ffc43f9"]], "identity_text": "Fix configure's checks for __cpuid() and __cpuidex() (Lukas Fittl, Michael Paquier) configure failed to detect these Windows-specific functions, so that they would not be used, leading to slower-than-necessary CRC computations since the availability of hardware instructions could not be verified. The practical impact of this error was limited, because production builds for Windows typically do not use the Autoconf toolchain.", "commit_aliases": ["1a5212775", "60953d4cb", "612f5b806", "8de56323c", "c1984be23", "cd2d52cc6", "d6ffc43f9"], "source_commits": ["8de56323c"], "source_entry_id": "17.6/changes/064", "db_id": "29bd2073e7a4111518a779dbaefa2e3e", "patch_ids": ["ae7561e3fbff19d94aa34e43f2e748e7"], "statement_hash": "436429453485323412a971d4862a8207948817d34496de399badd0a02929ae7c", "relations": [{"rule": 2, "type": "equivalent", "target": "251ab6b7a637a23285439e2814b4b7ff", "evidence": {"same_day": true, "patch_ids": ["ae7561e3fbff19d94aa34e43f2e748e7"], "statement_hash": "436429453485323412a971d4862a8207948817d34496de399badd0a02929ae7c"}}, {"rule": 2, "type": "equivalent", "target": "3cf852fa32a8e042efe25f55af66dd6c", "evidence": {"same_day": true, "patch_ids": ["ae7561e3fbff19d94aa34e43f2e748e7"], "statement_hash": "436429453485323412a971d4862a8207948817d34496de399badd0a02929ae7c"}}, {"rule": 2, "type": "equivalent", "target": "ae69663d10e961545d5a76d2ee306d3d", "evidence": {"same_day": true, "patch_ids": ["ae7561e3fbff19d94aa34e43f2e748e7"], "statement_hash": "436429453485323412a971d4862a8207948817d34496de399badd0a02929ae7c"}}, {"rule": 2, "type": "equivalent", "target": "fd641a38bef3ee82086302f552abc5e6", "evidence": {"same_day": true, "patch_ids": ["ae7561e3fbff19d94aa34e43f2e748e7"], "statement_hash": "436429453485323412a971d4862a8207948817d34496de399badd0a02929ae7c"}}], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "fd641a38bef3ee82086302f552abc5e6", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "修复 configure 对 __cpuid() 和 __cpuidex() 的检测", "evidence": {"same_day": true, "patch_ids": ["ae7561e3fbff19d94aa34e43f2e748e7"], "statement_hash": "436429453485323412a971d4862a8207948817d34496de399badd0a02929ae7c"}, "url": "/docs/compare/?release=16.10#16.10-080893a97846b1bd", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "3cf852fa32a8e042efe25f55af66dd6c", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "修复 configure 对 __cpuid() 和 __cpuidex() 的检测", "evidence": {"same_day": true, "patch_ids": ["ae7561e3fbff19d94aa34e43f2e748e7"], "statement_hash": "436429453485323412a971d4862a8207948817d34496de399badd0a02929ae7c"}, "url": "/docs/compare/?release=15.14#15.14-eb8cfd40fc0a99a1", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "251ab6b7a637a23285439e2814b4b7ff", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "修复 configure 对 __cpuid() 和 __cpuidex() 的检测", "evidence": {"same_day": true, "patch_ids": ["ae7561e3fbff19d94aa34e43f2e748e7"], "statement_hash": "436429453485323412a971d4862a8207948817d34496de399badd0a02929ae7c"}, "url": "/docs/compare/?release=14.19#14.19-eecaa3faa6751076", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "ae69663d10e961545d5a76d2ee306d3d", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "修复 configure 对 __cpuid() 和 __cpuidex() 的检测", "evidence": {"same_day": true, "patch_ids": ["ae7561e3fbff19d94aa34e43f2e748e7"], "statement_hash": "436429453485323412a971d4862a8207948817d34496de399badd0a02929ae7c"}, "url": "/docs/compare/?release=13.22#13.22-7d78ea3ba4066d49", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-5dde7f75a39e8421", "cves": [], "html": "修复在基于 Solaris 的平台上使用 --with-pam 选项时的构建失败（Tom Lane）§
Solaris 在 PAM 认证的 API 方面与其他 Unix 平台不一致。这表现为一个 “inconsistent pointer” 编译器警告，我们之前一直没有处理。但从 GCC 14 开始，默认情况下这是一个错误而不是警告，因此进行了修复。
", "text": "修复在基于 Solaris 的平台上使用 --with-pam 选项时的构建失败（Tom Lane）§ Solaris 在 PAM 认证的 API 方面与其他 Unix 平台不一致。这表现为一个 “inconsistent pointer” 编译器警告，我们之前一直没有处理。但从 GCC 14 开始，默认情况下这是一个错误而不是警告，因此进行了修复。", "title": "修复在基于 Solaris 的平台上使用 --with-pam 选项时的构建失败", "commits": ["635a85627"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.6/#RELEASE-17-6-CHANGES", "source_hash": "f95d2eda91eea1050b677d9f3e531d52a75009638356b39b693fe1d4604bcea3", "section_path": ["变更"], "commit_groups": [["1ccb3851d", "3d039b53a", "635a85627", "868b39a54", "b252ce311", "e4d585455", "e6dfd068e"]], "identity_text": "Fix build failure with --with-pam option on Solaris-based platforms (Tom Lane) Solaris is inconsistent with other Unix platforms about the API for PAM authentication. This manifested as an inconsistent pointer compiler warning, which we never did anything about. But as of GCC 14 it's an error not warning by default, so fix it.", "commit_aliases": ["1ccb3851d", "3d039b53a", "635a85627", "868b39a54", "b252ce311", "e4d585455", "e6dfd068e"], "source_commits": ["635a85627"], "source_entry_id": "17.6/changes/065", "db_id": "34538e54ec7992f9e730ad55c884d2ab", "patch_ids": ["51251ad5ddb09ec4180604be0ea7e244"], "statement_hash": "5b2c4725aa7102bdd6caa231ab00902bf447c41bcab6e88828baedd7a8e8cad8", "relations": [{"rule": 2, "type": "equivalent", "target": "0499fba6edeafd06c1aacb74337ee540", "evidence": {"same_day": true, "patch_ids": ["51251ad5ddb09ec4180604be0ea7e244"], "statement_hash": "5b2c4725aa7102bdd6caa231ab00902bf447c41bcab6e88828baedd7a8e8cad8"}}, {"rule": 2, "type": "equivalent", "target": "2f32f28098a657c73aaba748539500ac", "evidence": {"same_day": true, "patch_ids": ["51251ad5ddb09ec4180604be0ea7e244"], "statement_hash": "5b2c4725aa7102bdd6caa231ab00902bf447c41bcab6e88828baedd7a8e8cad8"}}, {"rule": 2, "type": "equivalent", "target": "8e3b2f44c27aa265f52e60bda0ce7558", "evidence": {"same_day": true, "patch_ids": ["51251ad5ddb09ec4180604be0ea7e244"], "statement_hash": "5b2c4725aa7102bdd6caa231ab00902bf447c41bcab6e88828baedd7a8e8cad8"}}, {"rule": 2, "type": "equivalent", "target": "b293fa0d4e1db1ca044df6a91593f3a7", "evidence": {"same_day": true, "patch_ids": ["51251ad5ddb09ec4180604be0ea7e244"], "statement_hash": "5b2c4725aa7102bdd6caa231ab00902bf447c41bcab6e88828baedd7a8e8cad8"}}], "version": "17.6", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "8e3b2f44c27aa265f52e60bda0ce7558", "kind": "equivalent", "version": "16.10", "label": "16.10", "title": "修复在基于 Solaris 的平台上使用 --with-pam 选项时的构建失败", "evidence": {"same_day": true, "patch_ids": ["51251ad5ddb09ec4180604be0ea7e244"], "statement_hash": "5b2c4725aa7102bdd6caa231ab00902bf447c41bcab6e88828baedd7a8e8cad8"}, "url": "/docs/compare/?release=16.10#16.10-032b8580605d61ab", "source_url": "/docs/release/16.10/#RELEASE-16-10-CHANGES"}, {"db_id": "0499fba6edeafd06c1aacb74337ee540", "kind": "equivalent", "version": "15.14", "label": "15.14", "title": "修复在基于 Solaris 的平台上使用 --with-pam 选项时的构建失败", "evidence": {"same_day": true, "patch_ids": ["51251ad5ddb09ec4180604be0ea7e244"], "statement_hash": "5b2c4725aa7102bdd6caa231ab00902bf447c41bcab6e88828baedd7a8e8cad8"}, "url": "/docs/compare/?release=15.14#15.14-3cf883176e770d3b", "source_url": "/docs/release/15.14/#ZH-AUTO-RELEASE-15-SECT2-8"}, {"db_id": "2f32f28098a657c73aaba748539500ac", "kind": "equivalent", "version": "14.19", "label": "14.19", "title": "修复在基于 Solaris 的平台上使用 --with-pam 选项时的构建失败", "evidence": {"same_day": true, "patch_ids": ["51251ad5ddb09ec4180604be0ea7e244"], "statement_hash": "5b2c4725aa7102bdd6caa231ab00902bf447c41bcab6e88828baedd7a8e8cad8"}, "url": "/docs/compare/?release=14.19#14.19-6a8eab878898dc90", "source_url": "/docs/release/14.19/#ZH-AUTO-RELEASE-14-SECT2-8"}, {"db_id": "b293fa0d4e1db1ca044df6a91593f3a7", "kind": "equivalent", "version": "13.22", "label": "13.22", "title": "修复在基于 Solaris 的平台上使用 --with-pam 选项时的构建失败", "evidence": {"same_day": true, "patch_ids": ["51251ad5ddb09ec4180604be0ea7e244"], "statement_hash": "5b2c4725aa7102bdd6caa231ab00902bf447c41bcab6e88828baedd7a8e8cad8"}, "url": "/docs/compare/?release=13.22#13.22-111a6307eb7d3da5", "source_url": "/docs/release/13.22/#id-1.11.6.7.6"}]}, {"id": "17.6-f785f5137d94a1cd", "cves": [], "html": "使我们的代码可移植到 GNU Hurd（Michael Banck、Christoph Berg、Samuel Thibault）§ §
\n修复了关于 IOV_MAX 和 O_RDONLY 在 Hurd 上不成立的假设。
使我们对 memset_s() 的使用严格符合 C11 标准（Tom Lane）§
这可以避免某些平台上的编译失败。
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对于运行 17.X 的用户，无需执行转储/恢复。
\n不过，如果你在分区表上有自引用外键约束，则可能需要重新创建这些约束，以确保它们得到正确实施。见下文第二条变更记录。
\n此外，如果你有任何 BRIN bloom 索引，建议在更新后对其重建索引。见下文第三条变更记录。
\n此外，如果你是从早于 17.1 的版本升级，请参见第 E.11 节。
", "compatibility_count": 0, "label": "17.5", "status_label": "受支持版本", "eol": "2029-11-08", "age_days": 510, "support_days": 1135, "entries": [{"id": "17.5-811aed0b2b3689f8", "cves": ["CVE-2025-4207"], "html": "避免在检查声称为 GB18030 编码的无效编码字符串时发生单字节缓冲区越界读取（Noah Misch，Andres Freund）§ §
\n虽然可能性不大，但如果不完整的多字节字符出现在内存末尾，可能会导致 SIGSEGV 崩溃。这在服务器和使用 libpq 的应用程序中都可能发生。（CVE-2025-4207）
", "text": "避免在检查声称为 GB18030 编码的无效编码字符串时发生单字节缓冲区越界读取（Noah Misch，Andres Freund）§ § 虽然可能性不大，但如果不完整的多字节字符出现在内存末尾，可能会导致 SIGSEGV 崩溃。这在服务器和使用 libpq 的应用程序中都可能发生。（CVE-2025-4207）", "title": "避免在检查声称为 GB18030 编码的无效编码字符串时发生单字节缓冲区越界读取", "commits": ["617d34908", "ec5f89e8a"], "section": "变更", "category": "security", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "60947e0669682c6d8f98a37f50f6140e5824a66d04fc50f6fd7c3837d54fd664", "section_path": ["变更"], "commit_groups": [["258cde839", "45fe7e08f", "5be213caa", "617d34908", "7279e5820", "f3bb0b2c4"], ["3f2ab7393", "44ba3f55f", "627acc3ca", "cbadeaca9", "d1264948f", "ec5f89e8a"]], "identity_text": "Avoid one-byte buffer overread when examining invalidly-encoded strings that are claimed to be in GB18030 encoding (Noah Misch, Andres Freund) While unlikely, a SIGSEGV crash could occur if an incomplete multibyte character appeared at the end of memory. This was possible both in the server and in libpq-using applications. (CVE-2025-4207)", "commit_aliases": ["258cde839", "3f2ab7393", "44ba3f55f", "45fe7e08f", "5be213caa", "617d34908", "627acc3ca", "7279e5820", "cbadeaca9", "d1264948f", "ec5f89e8a", "f3bb0b2c4"], "source_commits": ["617d34908", "ec5f89e8a"], "source_entry_id": "17.5/changes/001", "db_id": "b709e1b3e9d8624be870988b036fd152", "patch_ids": ["46c8bf47167ab191e3280201c2564861", "76df84f28287d373c8422ff9fd4dc342"], "statement_hash": "de9bc622c1afed2365e92af367e89d9502a1c466f4c6dba55f3cf061e1d932af", "relations": [{"rule": 2, "type": "equivalent", "target": "324c2d77afbaedc0b35dc9fa474e1a3c", "evidence": {"same_day": true, "patch_ids": ["46c8bf47167ab191e3280201c2564861", "76df84f28287d373c8422ff9fd4dc342"], "statement_hash": "de9bc622c1afed2365e92af367e89d9502a1c466f4c6dba55f3cf061e1d932af"}}, {"rule": 2, "type": "equivalent", "target": "52b291d40b26e80bfcbda168216ed19c", "evidence": {"same_day": true, "patch_ids": ["46c8bf47167ab191e3280201c2564861", "76df84f28287d373c8422ff9fd4dc342"], "statement_hash": "de9bc622c1afed2365e92af367e89d9502a1c466f4c6dba55f3cf061e1d932af"}}, {"rule": 2, "type": "equivalent", "target": "90816d8cb748849f968f5acd56673365", "evidence": {"same_day": true, "patch_ids": ["46c8bf47167ab191e3280201c2564861", "76df84f28287d373c8422ff9fd4dc342"], "statement_hash": "de9bc622c1afed2365e92af367e89d9502a1c466f4c6dba55f3cf061e1d932af"}}, {"rule": 2, "type": "equivalent", "target": "dd8842462b8fd9529571acc51a1f45c1", "evidence": {"same_day": true, "patch_ids": ["46c8bf47167ab191e3280201c2564861", "76df84f28287d373c8422ff9fd4dc342"], "statement_hash": "de9bc622c1afed2365e92af367e89d9502a1c466f4c6dba55f3cf061e1d932af"}}], "version": "17.5", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "52b291d40b26e80bfcbda168216ed19c", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "避免在检查声称为 GB18030 编码的无效编码字符串时发生单字节缓冲区越界读取", "evidence": {"same_day": true, "patch_ids": ["46c8bf47167ab191e3280201c2564861", "76df84f28287d373c8422ff9fd4dc342"], "statement_hash": "de9bc622c1afed2365e92af367e89d9502a1c466f4c6dba55f3cf061e1d932af"}, "url": "/docs/compare/?release=16.9#16.9-9333e72b42f314f4", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "324c2d77afbaedc0b35dc9fa474e1a3c", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "避免在检查声称为 GB18030 编码的无效编码字符串时发生单字节缓冲区越界读取", "evidence": {"same_day": true, "patch_ids": ["46c8bf47167ab191e3280201c2564861", "76df84f28287d373c8422ff9fd4dc342"], "statement_hash": "de9bc622c1afed2365e92af367e89d9502a1c466f4c6dba55f3cf061e1d932af"}, "url": "/docs/compare/?release=15.13#15.13-ac5445ebcc0439eb", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "dd8842462b8fd9529571acc51a1f45c1", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "避免在检查声称为 GB18030 编码的无效编码字符串时发生单字节缓冲区越界读取", "evidence": {"same_day": true, "patch_ids": ["46c8bf47167ab191e3280201c2564861", "76df84f28287d373c8422ff9fd4dc342"], "statement_hash": "de9bc622c1afed2365e92af367e89d9502a1c466f4c6dba55f3cf061e1d932af"}, "url": "/docs/compare/?release=14.18#14.18-e7c0d482f98a0ba1", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "90816d8cb748849f968f5acd56673365", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "避免在检查声称为 GB18030 编码的无效编码字符串时发生单字节缓冲区越界读取", "evidence": {"same_day": true, "patch_ids": ["46c8bf47167ab191e3280201c2564861", "76df84f28287d373c8422ff9fd4dc342"], "statement_hash": "de9bc622c1afed2365e92af367e89d9502a1c466f4c6dba55f3cf061e1d932af"}, "url": "/docs/compare/?release=13.21#13.21-bc601768f2de7a35", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-33e46d9a26056cb4", "cves": [], "html": "正确处理分区表上的自引用外键（Álvaro Herrera）§
\n创建或附加分区时未能为外键约束创建所需的目录条目，如果该约束引用的表就是同一个分区表。这会导致该约束无法被完全执行。
\n要修复此问题，如果在约束创建之后曾创建或附加过分区，则应删除并重新创建分区表上的任何自引用外键。请注意，可能已经存在违反约束的行，在这种情况下重新创建约束会失败，你需要先修复这些行后再重试。
", "text": "正确处理分区表上的自引用外键（Álvaro Herrera）§ 创建或附加分区时未能为外键约束创建所需的目录条目，如果该约束引用的表就是同一个分区表。这会导致该约束无法被完全执行。 要修复此问题，如果在约束创建之后曾创建或附加过分区，则应删除并重新创建分区表上的任何自引用外键。请注意，可能已经存在违反约束的行，在这种情况下重新创建约束会失败，你需要先修复这些行后再重试。", "title": "正确处理分区表上的自引用外键", "commits": ["f51ae3187"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "34acb88862cc01e1b3f535250ed1681aef05f3008636829b816b8cf75d88ab3e", "section_path": ["变更"], "commit_groups": [["1649d153a", "1817d62ec", "6ba979cf5", "b3a9c536d", "c83a38758", "f51ae3187"]], "identity_text": "Handle self-referential foreign keys on partitioned tables correctly (Álvaro Herrera) Creating or attaching partitions failed to make the required catalog entries for a foreign-key constraint, if the table referenced by the constraint was the same partitioned table. This resulted in failure to enforce the constraint fully. To fix this, you should drop and recreate any self-referential foreign keys on partitioned tables, if partitions have been created or attached since the constraint was created. Bear in mind that violating rows might already be present, in which case recreating the constraint will fail, and you'll need to fix up those rows before trying again.", "commit_aliases": ["1649d153a", "1817d62ec", "6ba979cf5", "b3a9c536d", "c83a38758", "f51ae3187"], "source_commits": ["f51ae3187"], "source_entry_id": "17.5/changes/002", "db_id": "74b0b653fc4b7867d9664b6f47e83cf2", "patch_ids": ["ad242ea23eebb0296f36fddb8b8111c0"], "statement_hash": "0c1635d2fbe51396a0afda654bfd96a5b65735f5ba956c95dbfb5862805e3a03", "relations": [{"rule": 2, "type": "equivalent", "target": "00a212cca3e46b43408a50bfb3f001a2", "evidence": {"same_day": true, "patch_ids": ["ad242ea23eebb0296f36fddb8b8111c0"], "statement_hash": "0c1635d2fbe51396a0afda654bfd96a5b65735f5ba956c95dbfb5862805e3a03"}}, {"rule": 2, "type": "equivalent", "target": "1597348d9b84b108c65df5a25ccdad57", "evidence": {"same_day": true, "patch_ids": ["ad242ea23eebb0296f36fddb8b8111c0"], "statement_hash": "0c1635d2fbe51396a0afda654bfd96a5b65735f5ba956c95dbfb5862805e3a03"}}, {"rule": 2, "type": "equivalent", "target": "2e82178a9bafbe73cfec49a0a0c3913b", "evidence": {"same_day": true, "patch_ids": ["ad242ea23eebb0296f36fddb8b8111c0"], "statement_hash": "0c1635d2fbe51396a0afda654bfd96a5b65735f5ba956c95dbfb5862805e3a03"}}, {"rule": 2, "type": "equivalent", "target": "80e3cc10f3858300ca77df2904c1925d", "evidence": {"same_day": true, "patch_ids": ["ad242ea23eebb0296f36fddb8b8111c0"], "statement_hash": "0c1635d2fbe51396a0afda654bfd96a5b65735f5ba956c95dbfb5862805e3a03"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "2e82178a9bafbe73cfec49a0a0c3913b", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "正确处理分区表上的自引用外键", "evidence": {"same_day": true, "patch_ids": ["ad242ea23eebb0296f36fddb8b8111c0"], "statement_hash": "0c1635d2fbe51396a0afda654bfd96a5b65735f5ba956c95dbfb5862805e3a03"}, "url": "/docs/compare/?release=16.9#16.9-957bda7d3c81adad", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "80e3cc10f3858300ca77df2904c1925d", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "正确处理分区表上的自引用外键", "evidence": {"same_day": true, "patch_ids": ["ad242ea23eebb0296f36fddb8b8111c0"], "statement_hash": "0c1635d2fbe51396a0afda654bfd96a5b65735f5ba956c95dbfb5862805e3a03"}, "url": "/docs/compare/?release=15.13#15.13-0a90d92fac91acc0", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "00a212cca3e46b43408a50bfb3f001a2", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "正确处理分区表上的自引用外键", "evidence": {"same_day": true, "patch_ids": ["ad242ea23eebb0296f36fddb8b8111c0"], "statement_hash": "0c1635d2fbe51396a0afda654bfd96a5b65735f5ba956c95dbfb5862805e3a03"}, "url": "/docs/compare/?release=14.18#14.18-8508a57f7675f008", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "1597348d9b84b108c65df5a25ccdad57", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "正确处理分区表上的自引用外键", "evidence": {"same_day": true, "patch_ids": ["ad242ea23eebb0296f36fddb8b8111c0"], "statement_hash": "0c1635d2fbe51396a0afda654bfd96a5b65735f5ba956c95dbfb5862805e3a03"}, "url": "/docs/compare/?release=13.21#13.21-5dfcd8e50f9f1cd7", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-713c7047a302325a", "cves": [], "html": "避免在 brin_bloom_union() 中合并压缩的 BRIN 摘要时丢失数据（Tomas Vondra）§
该代码未能考虑到解压缩结果与输入对象不完全相同的情况，这会导致未能将部分数据添加到合并后的摘要中，从而在索引搜索中遗漏行。
\n这个错误从引入 BRIN bloom 索引的 v14 就存在了，但当时这个代码路径很少被触及。在 v17 中由于并行索引构建现在使用了该代码，因此更容易被触发。
", "text": "避免在 brin_bloom_union() 中合并压缩的 BRIN 摘要时丢失数据（Tomas Vondra）§ 该代码未能考虑到解压缩结果与输入对象不完全相同的情况，这会导致未能将部分数据添加到合并后的摘要中，从而在索引搜索中遗漏行。 这个错误从引入 BRIN bloom 索引的 v14 就存在了，但当时这个代码路径很少被触及。在 v17 中由于并行索引构建现在使用了该代码，因此更容易被触发。", "title": "避免在 brin_bloom_union() 中合并压缩的 BRIN 摘要时丢失数据", "commits": ["cb0ad70b8"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "19fd566382389b19294889a03476f67bcac50ecf5f649586d03ba5f32366a873", "section_path": ["变更"], "commit_groups": [["6be02bbc8", "818245506", "cb0ad70b8", "e064b770c", "ebcc799a7"]], "identity_text": "Avoid data loss when merging compressed BRIN summaries in brin_bloom_union() (Tomas Vondra) The code failed to account for decompression results not being identical to the input objects, which would result in failure to add some of the data to the merged summary, leading to missed rows in index searches. This mistake was present back to v14 where BRIN bloom indexes were introduced, but this code path was only rarely reached then. It's substantially more likely to be hit in v17 because parallel index builds now use the code.", "commit_aliases": ["6be02bbc8", "818245506", "cb0ad70b8", "e064b770c", "ebcc799a7"], "source_commits": ["cb0ad70b8"], "source_entry_id": "17.5/changes/003", "db_id": "485bff3c834029add3cd04127b9baf3b", "patch_ids": ["e7679010570c027f03bd2cfeabb18277"], "statement_hash": "4b381913723c5c4a3d0d3be5e7454df4efc248655249905dff5dc8a58a402609", "relations": [{"rule": 2, "type": "equivalent", "target": "3a11ecf5fadca551924c452d89cfd2ae", "evidence": {"same_day": true, "patch_ids": ["e7679010570c027f03bd2cfeabb18277"], "statement_hash": "4b381913723c5c4a3d0d3be5e7454df4efc248655249905dff5dc8a58a402609"}}, {"rule": 2, "type": "equivalent", "target": "4843f13cf3d1c267a1482aff53d43829", "evidence": {"same_day": true, "patch_ids": ["e7679010570c027f03bd2cfeabb18277"], "statement_hash": "4b381913723c5c4a3d0d3be5e7454df4efc248655249905dff5dc8a58a402609"}}, {"rule": 2, "type": "equivalent", "target": "bbe2be1a596ba923c5a319334510b4f8", "evidence": {"same_day": true, "patch_ids": ["e7679010570c027f03bd2cfeabb18277"], "statement_hash": "4b381913723c5c4a3d0d3be5e7454df4efc248655249905dff5dc8a58a402609"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "4843f13cf3d1c267a1482aff53d43829", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "避免在 brin_bloom_union() 中合并压缩的 BRIN 摘要时丢失数据", "evidence": {"same_day": true, "patch_ids": ["e7679010570c027f03bd2cfeabb18277"], "statement_hash": "4b381913723c5c4a3d0d3be5e7454df4efc248655249905dff5dc8a58a402609"}, "url": "/docs/compare/?release=16.9#16.9-00a18a3ddf7896ba", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "3a11ecf5fadca551924c452d89cfd2ae", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "避免在 brin_bloom_union() 中合并压缩的 BRIN 摘要时丢失数据", "evidence": {"same_day": true, "patch_ids": ["e7679010570c027f03bd2cfeabb18277"], "statement_hash": "4b381913723c5c4a3d0d3be5e7454df4efc248655249905dff5dc8a58a402609"}, "url": "/docs/compare/?release=15.13#15.13-32fb0ac8af362319", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "bbe2be1a596ba923c5a319334510b4f8", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "避免在 brin_bloom_union() 中合并压缩的 BRIN 摘要时丢失数据", "evidence": {"same_day": true, "patch_ids": ["e7679010570c027f03bd2cfeabb18277"], "statement_hash": "4b381913723c5c4a3d0d3be5e7454df4efc248655249905dff5dc8a58a402609"}, "url": "/docs/compare/?release=14.18#14.18-f538b53a2f7f69ca", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}]}, {"id": "17.5-4ee041283b8d7df3", "cves": [], "html": "修复在 UPDATE、DELETE 和 MERGE 查询中使用对视图或函数的整行表引用（在 FROM 中）时出现的意外 “attribute has wrong type” 错误（Tom Lane）§
修复对带有 DO NOTHING 动作的分区表执行 MERGE 的问题（Tender Wang）§
某些情况会出现 “unknown action in MERGE WHEN clause” 错误。
", "text": "修复对带有 DO NOTHING 动作的分区表执行 MERGE 的问题（Tender Wang）§ 某些情况会出现 “unknown action in MERGE WHEN clause” 错误。", "title": "修复对带有 DO NOTHING 动作的分区表执行 MERGE 的问题", "commits": ["25303678a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "3dee2ba0540a4c784d18020fef92a582551c0b8093cb9d0c6dd383827cceeb60", "section_path": ["变更"], "commit_groups": [["14a33d3f0", "25303678a", "8b6a0e239", "8d4cd3b4a"]], "identity_text": "Fix MERGE into a partitioned table with DO NOTHING actions (Tender Wang) Some cases failed with unknown action in MERGE WHEN clause errors.", "commit_aliases": ["14a33d3f0", "25303678a", "8b6a0e239", "8d4cd3b4a"], "source_commits": ["25303678a"], "source_entry_id": "17.5/changes/005", "db_id": "86af16fcd8c6b4a784b7476a3d942894", "patch_ids": ["513aa4deebdf3df8839bb06bae87b2de"], "statement_hash": "5fe417a7181c1d7cf2c97d0d55ffbacd8690db7faa1ee767a09dea3ed7953532", "relations": [{"rule": 2, "type": "equivalent", "target": "52e2c1747d54581c28441d3730cd211c", "evidence": {"same_day": true, "patch_ids": ["513aa4deebdf3df8839bb06bae87b2de"], "statement_hash": "5fe417a7181c1d7cf2c97d0d55ffbacd8690db7faa1ee767a09dea3ed7953532"}}, {"rule": 2, "type": "equivalent", "target": "62735bf2bbcc5084c2a05ae3d376af22", "evidence": {"same_day": true, "patch_ids": ["513aa4deebdf3df8839bb06bae87b2de"], "statement_hash": "5fe417a7181c1d7cf2c97d0d55ffbacd8690db7faa1ee767a09dea3ed7953532"}}], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "52e2c1747d54581c28441d3730cd211c", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "修复对带有 DO NOTHING 动作的分区表执行 MERGE 的问题", "evidence": {"same_day": true, "patch_ids": ["513aa4deebdf3df8839bb06bae87b2de"], "statement_hash": "5fe417a7181c1d7cf2c97d0d55ffbacd8690db7faa1ee767a09dea3ed7953532"}, "url": "/docs/compare/?release=16.9#16.9-e85808310d3df6a7", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "62735bf2bbcc5084c2a05ae3d376af22", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "修复对带有 DO NOTHING 动作的分区表执行 MERGE 的问题", "evidence": {"same_day": true, "patch_ids": ["513aa4deebdf3df8839bb06bae87b2de"], "statement_hash": "5fe417a7181c1d7cf2c97d0d55ffbacd8690db7faa1ee767a09dea3ed7953532"}, "url": "/docs/compare/?release=15.13#15.13-573e0d1c859813ca", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}]}, {"id": "17.5-6526003e508c4382", "cves": [], "html": "防止当表具有域数据类型的 GENERATED 列且该域的约束不允许空值时 INSERT 命令失败的问题（Jian He）§
即使生成表达式产生了完全正常的结果，仍会报告约束违反错误。
", "text": "防止当表具有域数据类型的 GENERATED 列且该域的约束不允许空值时 INSERT 命令失败的问题（Jian He）§ 即使生成表达式产生了完全正常的结果，仍会报告约束违反错误。", "title": "防止当表具有域数据类型的 GENERATED 列且该域的约束不允许空值时 INSERT 命令失败的问题", "commits": ["3c39c000c"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "c7996034d5500676b26c555afba4c2e547bc01b378e2db52814f15785576400d", "section_path": ["变更"], "commit_groups": [["3c39c000c", "4604928ed", "7c8728494", "97d671672", "f04e0faa3"]], "identity_text": "Prevent failure in INSERT commands when the table has a GENERATED column of a domain data type and the domain's constraints disallow null values (Jian He) Constraint failure was reported even if the generation expression produced a perfectly okay result.", "commit_aliases": ["3c39c000c", "4604928ed", "7c8728494", "97d671672", "f04e0faa3"], "source_commits": ["3c39c000c"], "source_entry_id": "17.5/changes/006", "db_id": "a4bb8d60d9ad06081b90421ad2dae048", "patch_ids": ["511a283a7a0968a300bcd6f1f483561c"], "statement_hash": "b1bc50fa6460403502ac286fc1da724e43781afb7c442739f4cf1015e30f28d1", "relations": [{"rule": 2, "type": "equivalent", "target": "1abab24628ec9d80474ca478204b54b6", "evidence": {"same_day": true, "patch_ids": ["511a283a7a0968a300bcd6f1f483561c"], "statement_hash": "b1bc50fa6460403502ac286fc1da724e43781afb7c442739f4cf1015e30f28d1"}}, {"rule": 2, "type": "equivalent", "target": "90be6e04fee2db08987030dda7e61c1c", "evidence": {"same_day": true, "patch_ids": ["511a283a7a0968a300bcd6f1f483561c"], "statement_hash": "b1bc50fa6460403502ac286fc1da724e43781afb7c442739f4cf1015e30f28d1"}}, {"rule": 2, "type": "equivalent", "target": "9968353971b2d90aabe2974ce8ca0b17", "evidence": {"same_day": true, "patch_ids": ["511a283a7a0968a300bcd6f1f483561c"], "statement_hash": "b1bc50fa6460403502ac286fc1da724e43781afb7c442739f4cf1015e30f28d1"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "1abab24628ec9d80474ca478204b54b6", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "防止当表具有域数据类型的 GENERATED 列且该域的约束不允许空值时 INSERT 命令失败的问题", "evidence": {"same_day": true, "patch_ids": ["511a283a7a0968a300bcd6f1f483561c"], "statement_hash": "b1bc50fa6460403502ac286fc1da724e43781afb7c442739f4cf1015e30f28d1"}, "url": "/docs/compare/?release=16.9#16.9-9a8a93e856ab5a0d", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "90be6e04fee2db08987030dda7e61c1c", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "防止当表具有域数据类型的 GENERATED 列且该域的约束不允许空值时 INSERT 命令失败的问题", "evidence": {"same_day": true, "patch_ids": ["511a283a7a0968a300bcd6f1f483561c"], "statement_hash": "b1bc50fa6460403502ac286fc1da724e43781afb7c442739f4cf1015e30f28d1"}, "url": "/docs/compare/?release=15.13#15.13-dc64f1cefed2c049", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "9968353971b2d90aabe2974ce8ca0b17", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "防止当表具有域数据类型的 GENERATED 列且该域的约束不允许空值时 INSERT 命令失败的问题", "evidence": {"same_day": true, "patch_ids": ["511a283a7a0968a300bcd6f1f483561c"], "statement_hash": "b1bc50fa6460403502ac286fc1da724e43781afb7c442739f4cf1015e30f28d1"}, "url": "/docs/compare/?release=14.18#14.18-0db2ae0d4a6db748", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}]}, {"id": "17.5-b36cfca9c709aa6d", "cves": [], "html": "正确处理出现在附加到 INSERT/UPDATE/DELETE/MERGE 命令（该命令本身在 WITH 内部）的 WITH 子句中对外部 CTE 名称的引用（Tom Lane）§
解析器未能检测到不允许的递归情况，也未能在将 CTE 排列为可用顺序时考虑此类引用。
", "text": "正确处理出现在附加到 INSERT/UPDATE/DELETE/MERGE 命令（该命令本身在 WITH 内部）的 WITH 子句中对外部 CTE 名称的引用（Tom Lane）§ 解析器未能检测到不允许的递归情况，也未能在将 CTE 排列为可用顺序时考虑此类引用。", "title": "正确处理出现在附加到 INSERT/UPDATE/DELETE/MERGE 命令（该命令本身在 WITH 内部）的 WITH 子句中对外部 CTE 名称的引用", "commits": ["5e7be43f4"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "41343876fa355b03d904819fea3fe490a54642bb7e824a3f8102c5692fdd9305", "section_path": ["变更"], "commit_groups": [["1980ec2bc", "5e7be43f4", "691836405", "754a3d82d", "e276b5829", "ede29a1e4"]], "identity_text": "Correctly process references to outer CTE names that appear within a WITH clause attached to an INSERT/UPDATE/DELETE/MERGE command that's inside WITH (Tom Lane) The parser failed to detect disallowed recursion cases, nor did it account for such references when sorting CTEs into a usable order.", "commit_aliases": ["1980ec2bc", "5e7be43f4", "691836405", "754a3d82d", "e276b5829", "ede29a1e4"], "source_commits": ["5e7be43f4"], "source_entry_id": "17.5/changes/007", "db_id": "fe87096f3ff10f413ee4fd00bc85e2d2", "patch_ids": ["d1ef004bfb3ff87f530f4c58b02fe0f0"], "statement_hash": "bf2a0f590bb786488e65266418e36c3bf742fa81f661e219e66623e07c6f0096", "relations": [{"rule": 2, "type": "equivalent", "target": "43ef4362d82abd89c632923c19c63abe", "evidence": {"same_day": true, "patch_ids": ["d1ef004bfb3ff87f530f4c58b02fe0f0"], "statement_hash": "bf2a0f590bb786488e65266418e36c3bf742fa81f661e219e66623e07c6f0096"}}, {"rule": 2, "type": "equivalent", "target": "4e1153d84247e7968ad2cf656d1b8054", "evidence": {"same_day": true, "patch_ids": ["d1ef004bfb3ff87f530f4c58b02fe0f0"], "statement_hash": "bf2a0f590bb786488e65266418e36c3bf742fa81f661e219e66623e07c6f0096"}}, {"rule": 2, "type": "equivalent", "target": "7b32eae49c92985982175f39b0e0cd4e", "evidence": {"same_day": true, "patch_ids": ["d1ef004bfb3ff87f530f4c58b02fe0f0"], "statement_hash": "bf2a0f590bb786488e65266418e36c3bf742fa81f661e219e66623e07c6f0096"}}, {"rule": 2, "type": "equivalent", "target": "f6ef109aaf444cf2a6cefa7c247f050b", "evidence": {"same_day": true, "patch_ids": ["d1ef004bfb3ff87f530f4c58b02fe0f0"], "statement_hash": "bf2a0f590bb786488e65266418e36c3bf742fa81f661e219e66623e07c6f0096"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "7b32eae49c92985982175f39b0e0cd4e", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "正确处理出现在附加到 INSERT/UPDATE/DELETE/MERGE 命令（该命令本身在 WITH 内部）的 WITH 子句中对外部 CTE 名称的引用", "evidence": {"same_day": true, "patch_ids": ["d1ef004bfb3ff87f530f4c58b02fe0f0"], "statement_hash": "bf2a0f590bb786488e65266418e36c3bf742fa81f661e219e66623e07c6f0096"}, "url": "/docs/compare/?release=16.9#16.9-a8bff3d57a355b2b", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "f6ef109aaf444cf2a6cefa7c247f050b", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "正确处理出现在附加到 INSERT/UPDATE/DELETE/MERGE 命令（该命令本身在 WITH 内部）的 WITH 子句中对外部 CTE 名称的引用", "evidence": {"same_day": true, "patch_ids": ["d1ef004bfb3ff87f530f4c58b02fe0f0"], "statement_hash": "bf2a0f590bb786488e65266418e36c3bf742fa81f661e219e66623e07c6f0096"}, "url": "/docs/compare/?release=15.13#15.13-f4e8b698cacd5fe8", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "43ef4362d82abd89c632923c19c63abe", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "正确处理出现在附加到 INSERT/UPDATE/DELETE/MERGE 命令（该命令本身在 WITH 内部）的 WITH 子句中对外部 CTE 名称的引用", "evidence": {"same_day": true, "patch_ids": ["d1ef004bfb3ff87f530f4c58b02fe0f0"], "statement_hash": "bf2a0f590bb786488e65266418e36c3bf742fa81f661e219e66623e07c6f0096"}, "url": "/docs/compare/?release=14.18#14.18-1dfb1187293403b9", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "4e1153d84247e7968ad2cf656d1b8054", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "正确处理出现在附加到 INSERT/UPDATE/DELETE/MERGE 命令（该命令本身在 WITH 内部）的 WITH 子句中对外部 CTE 名称的引用", "evidence": {"same_day": true, "patch_ids": ["d1ef004bfb3ff87f530f4c58b02fe0f0"], "statement_hash": "bf2a0f590bb786488e65266418e36c3bf742fa81f661e219e66623e07c6f0096"}, "url": "/docs/compare/?release=13.21#13.21-a47f4cde204a1376", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-814797145ffde8c2", "cves": [], "html": "修复 JSON 构造表达式的键中类型转换被错误处理的问题（Amit Langote）§
", "text": "修复 JSON 构造表达式的键中类型转换被错误处理的问题（Amit Langote）§", "title": "修复 JSON 构造表达式的键中类型转换被错误处理的问题", "commits": ["8b2392ae3"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "fcfcf0bb0f82e92794a286079df7f9629641f9ff74b559c65c0ea9114cf7b547", "section_path": ["变更"], "commit_groups": [["8b2392ae3", "d4f79865d"]], "identity_text": "Fix misprocessing of casts within the keys of JSON constructor expressions (Amit Langote)", "commit_aliases": ["8b2392ae3", "d4f79865d"], "source_commits": ["8b2392ae3"], "source_entry_id": "17.5/changes/008", "db_id": "2309db51c4c5ea921a3deb10efc32663", "patch_ids": ["2e3af970cf9ac9dd3bef967ba9b5cfeb"], "statement_hash": "e69b5539b0febf22bd50365eec0a43bfed4e7a8a55ba9535becee3ea9aed9258", "relations": [], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.5-477036bbba5fb502", "cves": [], "html": "当参数为匿名记录类型时，不要尝试并行化 array_agg()（Richard Guo，Tom Lane）§
与并行工作进程通信的协议不支持标识工作进程返回的具体记录类型。
", "text": "当参数为匿名记录类型时，不要尝试并行化 array_agg()（Richard Guo，Tom Lane）§ 与并行工作进程通信的协议不支持标识工作进程返回的具体记录类型。", "title": "当参数为匿名记录类型时，不要尝试并行化 array_agg()", "commits": ["43847dd5e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "c44f4602c5603b17285a7a30ef3e028d638285eea7dec8d8469974307d25f30a", "section_path": ["变更"], "commit_groups": [["43847dd5e", "a7aa9f21f", "fedfcf665"]], "identity_text": "Don't try to parallelize array_agg() when the argument is of an anonymous record type (Richard Guo, Tom Lane) The protocol for communicating with parallel workers doesn't support identifying the concrete record type that a worker is returning.", "commit_aliases": ["43847dd5e", "a7aa9f21f", "fedfcf665"], "source_commits": ["43847dd5e"], "source_entry_id": "17.5/changes/009", "db_id": "235124161002d7e5c1a271f73cacb961", "patch_ids": ["15e8c83408c9fb3acf8a91c7ba3bfabb"], "statement_hash": "63fcdc0732060f30e3f494f2a82ffdeea43bf9da5df487f9f94243940f063c17", "relations": [{"rule": 2, "type": "equivalent", "target": "0267f7695c15b591593396acd795b113", "evidence": {"same_day": true, "patch_ids": ["15e8c83408c9fb3acf8a91c7ba3bfabb"], "statement_hash": "63fcdc0732060f30e3f494f2a82ffdeea43bf9da5df487f9f94243940f063c17"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "0267f7695c15b591593396acd795b113", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "当参数为匿名记录类型时，不要尝试并行化 array_agg()", "evidence": {"same_day": true, "patch_ids": ["15e8c83408c9fb3acf8a91c7ba3bfabb"], "statement_hash": "63fcdc0732060f30e3f494f2a82ffdeea43bf9da5df487f9f94243940f063c17"}, "url": "/docs/compare/?release=16.9#16.9-633282a04bcf0545", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}]}, {"id": "17.5-4a9dd248dfb091b7", "cves": [], "html": "修复 ARRAY( 和 subquery)ARRAY[ 构造，使其在输入类型为 expression, ...]int2vector 或 oidvector 时产生合理的结果（Tom Lane）§
此补丁恢复了 PostgreSQL 9.5 之前的行为：结果类型为 int2vector[] 或 oidvector[]。
修复解析 Ispell 字典时可能错误报告无效词缀的问题（Jacob Brazeal）§
", "text": "修复解析 Ispell 字典时可能错误报告无效词缀的问题（Jacob Brazeal）§", "title": "修复解析 Ispell 字典时可能错误报告无效词缀的问题", "commits": ["99c01aadf"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "c69cbcecbbdadc504ceb6c9f2c01e7195390e8fc25e96a1fa9a6b1d84d5eef14", "section_path": ["变更"], "commit_groups": [["61513da08", "7fb880102", "99c01aadf", "da85544ae", "e2921c0e9", "f1c1bafcd"]], "identity_text": "Fix possible erroneous reports of invalid affixes while parsing Ispell dictionaries (Jacob Brazeal)", "commit_aliases": ["61513da08", "7fb880102", "99c01aadf", "da85544ae", "e2921c0e9", "f1c1bafcd"], "source_commits": ["99c01aadf"], "source_entry_id": "17.5/changes/011", "db_id": "b921604055772bbf7e6449d7cc0b59cc", "patch_ids": ["f2484a0ea37309c0a083683b6f24f404"], "statement_hash": "a99d8bf2396babe0930adb5536a57eee692561e5efed988b319c441a85e28666", "relations": [{"rule": 2, "type": "equivalent", "target": "2d395b5defef434bec7ea4da45b42ad7", "evidence": {"same_day": true, "patch_ids": ["f2484a0ea37309c0a083683b6f24f404"], "statement_hash": "a99d8bf2396babe0930adb5536a57eee692561e5efed988b319c441a85e28666"}}, {"rule": 2, "type": "equivalent", "target": "8937ea7c9fd026836a5c262c8569963e", "evidence": {"same_day": true, "patch_ids": ["f2484a0ea37309c0a083683b6f24f404"], "statement_hash": "a99d8bf2396babe0930adb5536a57eee692561e5efed988b319c441a85e28666"}}, {"rule": 2, "type": "equivalent", "target": "8d306975e4b0a9c39e7fff8c8ad3613e", "evidence": {"same_day": true, "patch_ids": ["f2484a0ea37309c0a083683b6f24f404"], "statement_hash": "a99d8bf2396babe0930adb5536a57eee692561e5efed988b319c441a85e28666"}}, {"rule": 2, "type": "equivalent", "target": "eb58cef266f21c9edb703764403f7168", "evidence": {"same_day": true, "patch_ids": ["f2484a0ea37309c0a083683b6f24f404"], "statement_hash": "a99d8bf2396babe0930adb5536a57eee692561e5efed988b319c441a85e28666"}}], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "8937ea7c9fd026836a5c262c8569963e", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "修复解析 Ispell 字典时可能错误报告无效词缀的问题", "evidence": {"same_day": true, "patch_ids": ["f2484a0ea37309c0a083683b6f24f404"], "statement_hash": "a99d8bf2396babe0930adb5536a57eee692561e5efed988b319c441a85e28666"}, "url": "/docs/compare/?release=16.9#16.9-120195bfc62f85d9", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "2d395b5defef434bec7ea4da45b42ad7", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "修复解析 Ispell 字典时可能错误报告无效词缀的问题", "evidence": {"same_day": true, "patch_ids": ["f2484a0ea37309c0a083683b6f24f404"], "statement_hash": "a99d8bf2396babe0930adb5536a57eee692561e5efed988b319c441a85e28666"}, "url": "/docs/compare/?release=15.13#15.13-327c96a58899c1ae", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "8d306975e4b0a9c39e7fff8c8ad3613e", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "修复解析 Ispell 字典时可能错误报告无效词缀的问题", "evidence": {"same_day": true, "patch_ids": ["f2484a0ea37309c0a083683b6f24f404"], "statement_hash": "a99d8bf2396babe0930adb5536a57eee692561e5efed988b319c441a85e28666"}, "url": "/docs/compare/?release=14.18#14.18-60d7303621919c68", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "eb58cef266f21c9edb703764403f7168", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "修复解析 Ispell 字典时可能错误报告无效词缀的问题", "evidence": {"same_day": true, "patch_ids": ["f2484a0ea37309c0a083683b6f24f404"], "statement_hash": "a99d8bf2396babe0930adb5536a57eee692561e5efed988b319c441a85e28666"}, "url": "/docs/compare/?release=13.21#13.21-c84be53354aebbd7", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-2de3ea680928346f", "cves": [], "html": "修复 ALTER TABLE ADD COLUMN 以正确处理具有默认值的域类型的情况（Jian He，Tom Lane，Tender Wang）§ §
如果域类型具有默认值，在不带显式 DEFAULT 子句的情况下添加该类型的列，未能在现有行中安装域的默认值，而是将新列保留为空值。
修复外键约束的 ON DELETE SET DEFAULT 或 SET NULL 动作中存在重复列名时的异常行为（Tom Lane）§
改进对不允许的外键约束属性修改尝试的错误消息（Álvaro Herrera）§
", "text": "改进对不允许的外键约束属性修改尝试的错误消息（Álvaro Herrera）§", "title": "改进对不允许的外键约束属性修改尝试的错误消息", "commits": ["4e026be5f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "639ca778e678bc1b49463be358ace32122d5ddce59cd19f9cb4ca7143fde374f", "section_path": ["变更"], "commit_groups": [["0f354e080", "4e026be5f", "7bbc46213", "931a1c023", "9ea5fe5b6", "bf1e2d2db"]], "identity_text": "Improve the error message for disallowed attempts to alter the properties of a foreign key constraint (Álvaro Herrera)", "commit_aliases": ["0f354e080", "4e026be5f", "7bbc46213", "931a1c023", "9ea5fe5b6", "bf1e2d2db"], "source_commits": ["4e026be5f"], "source_entry_id": "17.5/changes/014", "db_id": "c85aaec4454f3f6c178e25e80fc110f7", "patch_ids": ["728bdeda1a76ff257ed4bba316259080"], "statement_hash": "69d10dbdc12bb154d1a6cea5ee9e09a2b99194bd690c1fcb18cb3ef905c1e82e", "relations": [{"rule": 2, "type": "equivalent", "target": "0b9e876fbe15368f7eb3e73dd5bde6fd", "evidence": {"same_day": true, "patch_ids": ["728bdeda1a76ff257ed4bba316259080"], "statement_hash": "69d10dbdc12bb154d1a6cea5ee9e09a2b99194bd690c1fcb18cb3ef905c1e82e"}}, {"rule": 2, "type": "equivalent", "target": "0d1236e87dc3b61c47a965fdf13a3b6e", "evidence": {"same_day": true, "patch_ids": ["728bdeda1a76ff257ed4bba316259080"], "statement_hash": "69d10dbdc12bb154d1a6cea5ee9e09a2b99194bd690c1fcb18cb3ef905c1e82e"}}, {"rule": 2, "type": "equivalent", "target": "5627f1c1d8a4f69c29448aee864c6b84", "evidence": {"same_day": true, "patch_ids": ["728bdeda1a76ff257ed4bba316259080"], "statement_hash": "69d10dbdc12bb154d1a6cea5ee9e09a2b99194bd690c1fcb18cb3ef905c1e82e"}}, {"rule": 2, "type": "equivalent", "target": "dfe47a550f472aa86b315fdfc03d4aa5", "evidence": {"same_day": true, "patch_ids": ["728bdeda1a76ff257ed4bba316259080"], "statement_hash": "69d10dbdc12bb154d1a6cea5ee9e09a2b99194bd690c1fcb18cb3ef905c1e82e"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "5627f1c1d8a4f69c29448aee864c6b84", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "改进对不允许的外键约束属性修改尝试的错误消息", "evidence": {"same_day": true, "patch_ids": ["728bdeda1a76ff257ed4bba316259080"], "statement_hash": "69d10dbdc12bb154d1a6cea5ee9e09a2b99194bd690c1fcb18cb3ef905c1e82e"}, "url": "/docs/compare/?release=16.9#16.9-d72b0590a5240169", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "dfe47a550f472aa86b315fdfc03d4aa5", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "改进对不允许的外键约束属性修改尝试的错误消息", "evidence": {"same_day": true, "patch_ids": ["728bdeda1a76ff257ed4bba316259080"], "statement_hash": "69d10dbdc12bb154d1a6cea5ee9e09a2b99194bd690c1fcb18cb3ef905c1e82e"}, "url": "/docs/compare/?release=15.13#15.13-5a8186c93235cabd", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "0b9e876fbe15368f7eb3e73dd5bde6fd", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "改进对不允许的外键约束属性修改尝试的错误消息", "evidence": {"same_day": true, "patch_ids": ["728bdeda1a76ff257ed4bba316259080"], "statement_hash": "69d10dbdc12bb154d1a6cea5ee9e09a2b99194bd690c1fcb18cb3ef905c1e82e"}, "url": "/docs/compare/?release=14.18#14.18-c2054eb401976a11", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "0d1236e87dc3b61c47a965fdf13a3b6e", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "改进对不允许的外键约束属性修改尝试的错误消息", "evidence": {"same_day": true, "patch_ids": ["728bdeda1a76ff257ed4bba316259080"], "statement_hash": "69d10dbdc12bb154d1a6cea5ee9e09a2b99194bd690c1fcb18cb3ef905c1e82e"}, "url": "/docs/compare/?release=13.21#13.21-5056a890e5317fea", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-b17b36d23abec8d7", "cves": [], "html": "避免在重置标记为 ON COMMIT DELETE ROWS 的临时表的 relhassubclass 标志时出错（Noah Misch）§
增加对 XMLSERIALIZE() 的 INDENT 选项的缺失反解析支持（Jim Jones）§ §
此前，使用 XMLSERIALIZE(... INDENT) 的视图或规则在导出时不包含 INDENT 子句，导致恢复后结果不正确。
避免对同时具有 FILTER 和 ORDER BY（或 DISTINCT）选项的聚合函数的参数进行过早求值（David Rowley）§
如果存在 ORDER BY 或 DISTINCT，我们会考虑对聚合输入值进行预排序，而不是在 Agg 计划节点内部排序。但如果聚合输入包含可能失败的表达式（例如，某些输入除数可能为零的除法运算），且存在用于防止此类失败的 FILTER 子句，这就会有问题。预排序会将表达式求值推到 FILTER 测试之前，使得失败仍然会发生。现在通过在存在 FILTER 且输入表达式比简单的 Var 或 Const 更复杂时不进行预排序来避免此问题。
修复在存在外连接时，依据列 NOT NULL 约束得出错误推论的问题（Richard Guo）§
在某些情况下，规划器会丢弃 IS NOT NULL 查询条件，即使该条件是在外连接之后生效，因此并非冗余。
避免基于应用于复合值的 IS [NOT] NULL 测试进行不正确的优化（Bruce Momjian）§
修复规划器在顶层表达式中无法识别多个可进行 hash 运算的 ScalarArrayOpExpr 子表达式的问题（David Geier）§
\n这导致了本可以用 hash 表处理的额外子表达式（即右侧全为常量的 IN、NOT IN 或 = ANY 子句）执行效率不必要地低下。
修复低填充因子时表大小估算不正确的问题（Tomas Vondra）§
\n当规划器估算一个尚未分析过的表的行数时，会把该表的 fillfactor 设置计入估算，但此前未将结果限制为每页至少一行。因此，低填充因子可能导致不合理地偏小的估算结果。
", "text": "修复低填充因子时表大小估算不正确的问题（Tomas Vondra）§ 当规划器估算一个尚未分析过的表的行数时，会把该表的 fillfactor 设置计入估算，但此前未将结果限制为每页至少一行。因此，低填充因子可能导致不合理地偏小的估算结果。", "title": "修复低填充因子时表大小估算不正确的问题", "commits": ["587b6aa3f"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "d224e4d08dc951edfe8da840ccff1d1b5c2620349732393899fedfbd65080db2", "section_path": ["变更"], "commit_groups": [["587b6aa3f", "9ba7bcc89"]], "identity_text": "Fix incorrect table size estimate with low fill factor (Tomas Vondra) When the planner estimates the number of rows in a never-yet-analyzed table, it uses the table's fillfactor setting in the estimation, but it neglected to clamp the result to at least one row per page. A low fillfactor could thus result in an unreasonably small estimate.", "commit_aliases": ["587b6aa3f", "9ba7bcc89"], "source_commits": ["587b6aa3f"], "source_entry_id": "17.5/changes/021", "db_id": "f8b3993efe4b1cc33a7d48d17ca578d2", "patch_ids": ["816261129d787a6f2bd0989a506895f7"], "statement_hash": "59e83ab85d03a81a8f45c9e421e1703076c446148a9887625820f400efdb89b2", "relations": [], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.5-d0e0aee72000234f", "cves": [], "html": "禁用位图堆扫描中的“跳过获取”优化（Matthias van de Meent）§
\n事实证明，当并发 vacuum 将页面标记为全部可见时，此优化可能会返回死元组。
", "text": "禁用位图堆扫描中的“跳过获取”优化（Matthias van de Meent）§ 事实证明，当并发 vacuum 将页面标记为全部可见时，此优化可能会返回死元组。", "title": "禁用位图堆扫描中的“跳过获取”优化", "commits": ["78cb2466f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "8fcf0cdbdd47a77b3865bbc4c9085216fd1bc0e335fd83ac73a821d4426112a7", "section_path": ["变更"], "commit_groups": [["459e7bf8e", "4934d3875", "77d90d6d6", "78cb2466f", "980727b84", "b9ec8125d"]], "identity_text": "Disable skip fetch optimization in bitmap heap scan (Matthias van de Meent) It turns out that this optimization can result in returning dead tuples when a concurrent vacuum marks a page all-visible.", "commit_aliases": ["459e7bf8e", "4934d3875", "77d90d6d6", "78cb2466f", "980727b84", "b9ec8125d"], "source_commits": ["78cb2466f"], "source_entry_id": "17.5/changes/022", "db_id": "623c2024106007645fec5d71fb5712bb", "patch_ids": ["24bd9f8c7d1c77a2c13ebf151d4f8c78"], "statement_hash": "8f4cf3b56c19d886317615b5f6a44c5d0e2b2b6a87c82a344367ba093f15aa67", "relations": [{"rule": 2, "type": "equivalent", "target": "5b84c530a1833db604577188570826f0", "evidence": {"same_day": true, "patch_ids": ["24bd9f8c7d1c77a2c13ebf151d4f8c78"], "statement_hash": "8f4cf3b56c19d886317615b5f6a44c5d0e2b2b6a87c82a344367ba093f15aa67"}}, {"rule": 2, "type": "equivalent", "target": "aad339e7e9006b00a0a084b4f930d309", "evidence": {"same_day": true, "patch_ids": ["24bd9f8c7d1c77a2c13ebf151d4f8c78"], "statement_hash": "8f4cf3b56c19d886317615b5f6a44c5d0e2b2b6a87c82a344367ba093f15aa67"}}, {"rule": 2, "type": "equivalent", "target": "b694546a946a05eab3a70dbe84ca5802", "evidence": {"same_day": true, "patch_ids": ["24bd9f8c7d1c77a2c13ebf151d4f8c78"], "statement_hash": "8f4cf3b56c19d886317615b5f6a44c5d0e2b2b6a87c82a344367ba093f15aa67"}}, {"rule": 2, "type": "equivalent", "target": "fac79d43b3a211db66f6f7439608ee0d", "evidence": {"same_day": true, "patch_ids": ["24bd9f8c7d1c77a2c13ebf151d4f8c78"], "statement_hash": "8f4cf3b56c19d886317615b5f6a44c5d0e2b2b6a87c82a344367ba093f15aa67"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "b694546a946a05eab3a70dbe84ca5802", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "禁用位图堆扫描中的“跳过获取”优化", "evidence": {"same_day": true, "patch_ids": ["24bd9f8c7d1c77a2c13ebf151d4f8c78"], "statement_hash": "8f4cf3b56c19d886317615b5f6a44c5d0e2b2b6a87c82a344367ba093f15aa67"}, "url": "/docs/compare/?release=16.9#16.9-ec226192f4ec4117", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "fac79d43b3a211db66f6f7439608ee0d", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "禁用位图堆扫描中的“跳过获取”优化", "evidence": {"same_day": true, "patch_ids": ["24bd9f8c7d1c77a2c13ebf151d4f8c78"], "statement_hash": "8f4cf3b56c19d886317615b5f6a44c5d0e2b2b6a87c82a344367ba093f15aa67"}, "url": "/docs/compare/?release=15.13#15.13-0fcfc7db639b5e6d", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "5b84c530a1833db604577188570826f0", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "禁用位图堆扫描中的“跳过获取”优化", "evidence": {"same_day": true, "patch_ids": ["24bd9f8c7d1c77a2c13ebf151d4f8c78"], "statement_hash": "8f4cf3b56c19d886317615b5f6a44c5d0e2b2b6a87c82a344367ba093f15aa67"}, "url": "/docs/compare/?release=14.18#14.18-7fee35a12ed31c20", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "aad339e7e9006b00a0a084b4f930d309", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "禁用位图堆扫描中的“跳过获取”优化", "evidence": {"same_day": true, "patch_ids": ["24bd9f8c7d1c77a2c13ebf151d4f8c78"], "statement_hash": "8f4cf3b56c19d886317615b5f6a44c5d0e2b2b6a87c82a344367ba093f15aa67"}, "url": "/docs/compare/?release=13.21#13.21-a23918277d20303c", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-6b61702f0e96682e", "cves": [], "html": "修复存在大量搜索键时 GIN 索引搜索启动的性能问题（Tom Lane，Vinod Sridharan）§ §
\n具有大量键的可索引子句（例如，jsonbcol ?| array[...] 包含数万个数组元素）启动时需要 O(N2) 的时间，并且在此期间也无法被取消。
检测 BRIN 索引操作符类中缺失的支持函数，并报告错误而不是崩溃（Álvaro Herrera）§
", "text": "检测 BRIN 索引操作符类中缺失的支持函数，并报告错误而不是崩溃（Álvaro Herrera）§", "title": "检测 BRIN 索引操作符类中缺失的支持函数，并报告错误而不是崩溃", "commits": ["ade976f8b"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "f36755eb23e6b931c7fd525b71ef93166a8e6a3f0841ba4759a854adc2edfcaa", "section_path": ["变更"], "commit_groups": [["17ce344f8", "5144e1f8f", "5d8c58800", "ade976f8b", "e0d8f49a3", "f5b4a0b49"]], "identity_text": "Detect missing support procedures in a BRIN index operator class, and report an error instead of crashing (Álvaro Herrera)", "commit_aliases": ["17ce344f8", "5144e1f8f", "5d8c58800", "ade976f8b", "e0d8f49a3", "f5b4a0b49"], "source_commits": ["ade976f8b"], "source_entry_id": "17.5/changes/024", "db_id": "5267301b9758c9e418c0bd305338d9d1", "patch_ids": ["a6ad3f27f4898d4cf7e1f8d5714f4623"], "statement_hash": "434633f2d6ebbae84da60c5fa9e653325724888f4ced50a9c929141223e20276", "relations": [{"rule": 2, "type": "equivalent", "target": "07795445e3fa35543669ce4ac06e9c03", "evidence": {"same_day": true, "patch_ids": ["a6ad3f27f4898d4cf7e1f8d5714f4623"], "statement_hash": "434633f2d6ebbae84da60c5fa9e653325724888f4ced50a9c929141223e20276"}}, {"rule": 2, "type": "equivalent", "target": "5013f22cc83ed83185fae40ec6f85d0c", "evidence": {"same_day": true, "patch_ids": ["a6ad3f27f4898d4cf7e1f8d5714f4623"], "statement_hash": "434633f2d6ebbae84da60c5fa9e653325724888f4ced50a9c929141223e20276"}}, {"rule": 2, "type": "equivalent", "target": "52095fe055fa798df8e06d9733eeeee4", "evidence": {"same_day": true, "patch_ids": ["a6ad3f27f4898d4cf7e1f8d5714f4623"], "statement_hash": "434633f2d6ebbae84da60c5fa9e653325724888f4ced50a9c929141223e20276"}}, {"rule": 2, "type": "equivalent", "target": "81a8c631d535b28a942e5afb558c8727", "evidence": {"same_day": true, "patch_ids": ["a6ad3f27f4898d4cf7e1f8d5714f4623"], "statement_hash": "434633f2d6ebbae84da60c5fa9e653325724888f4ced50a9c929141223e20276"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "81a8c631d535b28a942e5afb558c8727", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "检测 BRIN 索引操作符类中缺失的支持函数，并报告错误而不是崩溃", "evidence": {"same_day": true, "patch_ids": ["a6ad3f27f4898d4cf7e1f8d5714f4623"], "statement_hash": "434633f2d6ebbae84da60c5fa9e653325724888f4ced50a9c929141223e20276"}, "url": "/docs/compare/?release=16.9#16.9-d751d04da9ab2a78", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "52095fe055fa798df8e06d9733eeeee4", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "检测 BRIN 索引操作符类中缺失的支持函数，并报告错误而不是崩溃", "evidence": {"same_day": true, "patch_ids": ["a6ad3f27f4898d4cf7e1f8d5714f4623"], "statement_hash": "434633f2d6ebbae84da60c5fa9e653325724888f4ced50a9c929141223e20276"}, "url": "/docs/compare/?release=15.13#15.13-b46b133391a86774", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "07795445e3fa35543669ce4ac06e9c03", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "检测 BRIN 索引操作符类中缺失的支持函数，并报告错误而不是崩溃", "evidence": {"same_day": true, "patch_ids": ["a6ad3f27f4898d4cf7e1f8d5714f4623"], "statement_hash": "434633f2d6ebbae84da60c5fa9e653325724888f4ced50a9c929141223e20276"}, "url": "/docs/compare/?release=14.18#14.18-c82d8eee5284ac1f", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "5013f22cc83ed83185fae40ec6f85d0c", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "检测 BRIN 索引操作符类中缺失的支持函数，并报告错误而不是崩溃", "evidence": {"same_day": true, "patch_ids": ["a6ad3f27f4898d4cf7e1f8d5714f4623"], "statement_hash": "434633f2d6ebbae84da60c5fa9e653325724888f4ced50a9c929141223e20276"}, "url": "/docs/compare/?release=13.21#13.21-96cb58bb59f0ca93", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-3b760fb385f5b7f6", "cves": [], "html": "在等待 Append 计划节点的异步子计划时响应中断（如查询取消）（Heikki Linnakangas）§
\n之前，在某个子计划就绪之前不会发生任何事情。
", "text": "在等待 Append 计划节点的异步子计划时响应中断（如查询取消）（Heikki Linnakangas）§ 之前，在某个子计划就绪之前不会发生任何事情。", "title": "在等待 Append 计划节点的异步子计划时响应中断（如查询取消）", "commits": ["e731e9d5e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "5a4c306f5ed769a084ac7cfbbd73fb5e514e1af0fbcdff92eac4f0c162e5b6f9", "section_path": ["变更"], "commit_groups": [["004dbbd72", "af717317a", "d2fb076be", "d4d34c08c", "e731e9d5e"]], "identity_text": "Respond to interrupts (such as query cancel) while waiting for asynchronous subplans of an Append plan node (Heikki Linnakangas) Previously, nothing would happen until one of the subplans becomes ready.", "commit_aliases": ["004dbbd72", "af717317a", "d2fb076be", "d4d34c08c", "e731e9d5e"], "source_commits": ["e731e9d5e"], "source_entry_id": "17.5/changes/025", "db_id": "bc6275afdb9fe4237e597f5a8a0f7d1e", "patch_ids": ["c064a1921c86b2d8f990d5d2c678cf3f"], "statement_hash": "f35a3ca56391c5cc0085b028fe9770aec4c6158b8a3e85b4f85a689282d9f1c3", "relations": [{"rule": 2, "type": "equivalent", "target": "266ac90fa5b9b2152af01edeb08fb5b7", "evidence": {"same_day": true, "patch_ids": ["c064a1921c86b2d8f990d5d2c678cf3f"], "statement_hash": "f35a3ca56391c5cc0085b028fe9770aec4c6158b8a3e85b4f85a689282d9f1c3"}}, {"rule": 2, "type": "equivalent", "target": "f65f31a24c7b824da5419e0fce1173eb", "evidence": {"same_day": true, "patch_ids": ["c064a1921c86b2d8f990d5d2c678cf3f"], "statement_hash": "f35a3ca56391c5cc0085b028fe9770aec4c6158b8a3e85b4f85a689282d9f1c3"}}, {"rule": 2, "type": "equivalent", "target": "f96c8bb00838600eb0266dddb8c5497e", "evidence": {"same_day": true, "patch_ids": ["c064a1921c86b2d8f990d5d2c678cf3f"], "statement_hash": "f35a3ca56391c5cc0085b028fe9770aec4c6158b8a3e85b4f85a689282d9f1c3"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "266ac90fa5b9b2152af01edeb08fb5b7", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "在等待 Append 计划节点的异步子计划时响应中断（如查询取消）", "evidence": {"same_day": true, "patch_ids": ["c064a1921c86b2d8f990d5d2c678cf3f"], "statement_hash": "f35a3ca56391c5cc0085b028fe9770aec4c6158b8a3e85b4f85a689282d9f1c3"}, "url": "/docs/compare/?release=16.9#16.9-43771120e2df4821", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "f65f31a24c7b824da5419e0fce1173eb", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "在等待 Append 计划节点的异步子计划时响应中断（如查询取消）", "evidence": {"same_day": true, "patch_ids": ["c064a1921c86b2d8f990d5d2c678cf3f"], "statement_hash": "f35a3ca56391c5cc0085b028fe9770aec4c6158b8a3e85b4f85a689282d9f1c3"}, "url": "/docs/compare/?release=15.13#15.13-e2829c92cb9c1878", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "f96c8bb00838600eb0266dddb8c5497e", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "在等待 Append 计划节点的异步子计划时响应中断（如查询取消）", "evidence": {"same_day": true, "patch_ids": ["c064a1921c86b2d8f990d5d2c678cf3f"], "statement_hash": "f35a3ca56391c5cc0085b028fe9770aec4c6158b8a3e85b4f85a689282d9f1c3"}, "url": "/docs/compare/?release=14.18#14.18-ebb42881c8090b7d", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}]}, {"id": "17.5-cbbabe25f7f4e5fc", "cves": [], "html": "更频繁地报告活跃 WAL 发送进程的 I/O 统计信息（Bertrand Drouvot）§
\n此前，pg_stat_io 视图未能累积 WAL 发送进程执行的 I/O，直到该进程退出。现在此类 I/O 将在最多一秒的延迟后被报告。
修复启动后立即处理 synchronous_standby_names 时的竞态条件（Melnikov Maksim，Michael Paquier）§
在系统启动后的短暂时间内，即使 synchronous_standby_names 已启用，后端可能也不会等待同步提交。
处理同一查询期间 io_combine_limit 可能发生变化的情况（Thomas Munro）§
避免当 scram_iterations 设置为 INT_MAX 时的无限循环（Kevin K Biju）§
避免由于 json_array() 的子查询被双重转换而可能导致的崩溃（Tom Lane）§
修复 pg_strtof() 在空 endptr 时崩溃的问题（Alexander Lakhin，Tom Lane）§
修复在某些 GUC 赋值中内存不足后的崩溃问题（Daniel Gustafsson）§
", "text": "修复在某些 GUC 赋值中内存不足后的崩溃问题（Daniel Gustafsson）§", "title": "修复在某些 GUC 赋值中内存不足后的崩溃问题", "commits": ["8afec4ef6"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "03e4f63f99f6de6e481027a5b40271b70f812faf05bb9917546fb1e3ebdce37f", "section_path": ["变更"], "commit_groups": [["058b5152f", "8afec4ef6", "8d48e84c5"]], "identity_text": "Fix crash after out-of-memory in certain GUC assignments (Daniel Gustafsson)", "commit_aliases": ["058b5152f", "8afec4ef6", "8d48e84c5"], "source_commits": ["8afec4ef6"], "source_entry_id": "17.5/changes/032", "db_id": "23ab01db1072a15e27055e650563ed70", "patch_ids": ["b961dd64c1458fef941542b2e8a23e07"], "statement_hash": "9cd377fdfeddf7651326fcb6374f6a13ae7cef4cceb4a82af30847a078caf330", "relations": [{"rule": 2, "type": "equivalent", "target": "c6f996699b4b5ce09633d8bc53e3e8c3", "evidence": {"same_day": true, "patch_ids": ["b961dd64c1458fef941542b2e8a23e07"], "statement_hash": "9cd377fdfeddf7651326fcb6374f6a13ae7cef4cceb4a82af30847a078caf330"}}], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "c6f996699b4b5ce09633d8bc53e3e8c3", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "修复在某些 GUC 赋值中内存不足后的崩溃问题", "evidence": {"same_day": true, "patch_ids": ["b961dd64c1458fef941542b2e8a23e07"], "statement_hash": "9cd377fdfeddf7651326fcb6374f6a13ae7cef4cceb4a82af30847a078caf330"}, "url": "/docs/compare/?release=16.9#16.9-2747f0582bb26746", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}]}, {"id": "17.5-88fad50b7b3b2e15", "cves": [], "html": "避免在 Snowball 词干提取器遇到内存不足条件时崩溃（Maksim Korotkov）§
", "text": "避免在 Snowball 词干提取器遇到内存不足条件时崩溃（Maksim Korotkov）§", "title": "避免在 Snowball 词干提取器遇到内存不足条件时崩溃", "commits": ["7edd2cbc5"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "863a6d6b30d6296b5cc226db53c7adb643459be9731c11a3ceadfee06537e461", "section_path": ["变更"], "commit_groups": [["197427fb3", "7edd2cbc5", "8388cae55", "9c46d902b", "b464e51ab", "c0c364fa1"]], "identity_text": "Avoid crash when a Snowball stemmer encounters an out-of-memory condition (Maksim Korotkov)", "commit_aliases": ["197427fb3", "7edd2cbc5", "8388cae55", "9c46d902b", "b464e51ab", "c0c364fa1"], "source_commits": ["7edd2cbc5"], "source_entry_id": "17.5/changes/033", "db_id": "fe6fa87c7f7a2f01e5226fc8b75d4395", "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"], "statement_hash": "6c8d8c6f1cd71c3e595998d2cabe403f95a5078a14911e8bf0245a28e047a7c5", "relations": [{"rule": 2, "type": "equivalent", "target": "00feddbb8384a7a8cefe4217cd497215", "evidence": {"same_day": true, "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"], "statement_hash": "6c8d8c6f1cd71c3e595998d2cabe403f95a5078a14911e8bf0245a28e047a7c5"}}, {"rule": 2, "type": "equivalent", "target": "43dbc69a435522e8a12bbf37193bcbca", "evidence": {"same_day": true, "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"], "statement_hash": "6c8d8c6f1cd71c3e595998d2cabe403f95a5078a14911e8bf0245a28e047a7c5"}}, {"rule": 2, "type": "equivalent", "target": "c2850458f2850974df366bef8a85488e", "evidence": {"same_day": true, "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"], "statement_hash": "6c8d8c6f1cd71c3e595998d2cabe403f95a5078a14911e8bf0245a28e047a7c5"}}, {"rule": 2, "type": "related", "target": "d02c90e2590d4a47f73a5782496b4966", "evidence": {"same_day": false, "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"]}}, {"rule": 2, "type": "equivalent", "target": "d6bf0f560b8ac8cad3c1d6a070b45594", "evidence": {"same_day": true, "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"], "statement_hash": "6c8d8c6f1cd71c3e595998d2cabe403f95a5078a14911e8bf0245a28e047a7c5"}}], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "d02c90e2590d4a47f73a5782496b4966", "kind": "related", "version": "18.0", "label": "18.0", "title": "添加爱沙尼亚语的全文检索词干提取", "evidence": {"same_day": false, "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"]}, "url": "/docs/compare/?release=18.0#18.0-ddc75ea0db8ffc49", "source_url": "/docs/release/18.0/#RELEASE-18-DATATYPES"}, {"db_id": "c2850458f2850974df366bef8a85488e", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "避免在 Snowball 词干提取器遇到内存不足条件时崩溃", "evidence": {"same_day": true, "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"], "statement_hash": "6c8d8c6f1cd71c3e595998d2cabe403f95a5078a14911e8bf0245a28e047a7c5"}, "url": "/docs/compare/?release=16.9#16.9-71f38ed0f1b64f88", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "00feddbb8384a7a8cefe4217cd497215", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "避免在 Snowball 词干提取器遇到内存不足条件时崩溃", "evidence": {"same_day": true, "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"], "statement_hash": "6c8d8c6f1cd71c3e595998d2cabe403f95a5078a14911e8bf0245a28e047a7c5"}, "url": "/docs/compare/?release=15.13#15.13-6fa1c30b53ef4a7a", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "d6bf0f560b8ac8cad3c1d6a070b45594", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "避免在 Snowball 词干提取器遇到内存不足条件时崩溃", "evidence": {"same_day": true, "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"], "statement_hash": "6c8d8c6f1cd71c3e595998d2cabe403f95a5078a14911e8bf0245a28e047a7c5"}, "url": "/docs/compare/?release=14.18#14.18-813abffbc8584526", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "43dbc69a435522e8a12bbf37193bcbca", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "避免在 Snowball 词干提取器遇到内存不足条件时崩溃", "evidence": {"same_day": true, "patch_ids": ["d20fbffc83ee90d1348f1d03836b8f18"], "statement_hash": "6c8d8c6f1cd71c3e595998d2cabe403f95a5078a14911e8bf0245a28e047a7c5"}, "url": "/docs/compare/?release=13.21#13.21-7de382d5402e6e82", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-7710d321654aba90", "cves": [], "html": "修复规划期间过度释放 SpecialJoinInfo 结构体的问题（Richard Guo）§
\n如果启用了分区连接，这会在规划期间导致崩溃。
", "text": "修复规划期间过度释放 SpecialJoinInfo 结构体的问题（Richard Guo）§ 如果启用了分区连接，这会在规划期间导致崩溃。", "title": "修复规划期间过度释放 SpecialJoinInfo 结构体的问题", "commits": ["727bc6ac3"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "67f2fd66d17d12bc0127432dc4a1ee621254e71141bab1304f4bcbe4ee5b0445", "section_path": ["变更"], "commit_groups": [["727bc6ac3", "c39392eba"]], "identity_text": "Fix over-enthusiastic freeing of SpecialJoinInfo structs during planning (Richard Guo) This led to crashes during planning if partitionwise joining is enabled.", "commit_aliases": ["727bc6ac3", "c39392eba"], "source_commits": ["727bc6ac3"], "source_entry_id": "17.5/changes/034", "db_id": "ebdda7e082e30154b83d9936a391bd88", "patch_ids": ["42ec8138b2a25ccf518470e4df4202b0"], "statement_hash": "15ded82f73c70eec7feb88b753b5810fd5a76ddd53da757ee29f9cbb1203e6e1", "relations": [], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.5-329d6dcb7a52243f", "cves": [], "html": "禁止复制已失效的复制槽（Shlok Kyal）§
\n这可以防止当失效的槽指向已被删除的 WAL 时出现问题。
", "text": "禁止复制已失效的复制槽（Shlok Kyal）§ 这可以防止当失效的槽指向已被删除的 WAL 时出现问题。", "title": "禁止复制已失效的复制槽", "commits": ["a4309e85f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "90fba1c2bb06ca3edc0ddf0131e65964d8004b1f6a4695f42c1733ffc84c3355", "section_path": ["变更"], "commit_groups": [["87e8599e0", "a4309e85f", "fd09c1316"]], "identity_text": "Disallow copying of invalidated replication slots (Shlok Kyal) This prevents trouble when the invalid slot points to WAL that's already been removed.", "commit_aliases": ["87e8599e0", "a4309e85f", "fd09c1316"], "source_commits": ["a4309e85f"], "source_entry_id": "17.5/changes/035", "db_id": "25b777c14569e1cb00949eac804f9143", "patch_ids": ["69ebb07e5bcd7b2d9d9bfa4f1d54662d"], "statement_hash": "9d0ca5ad3289b329470f78c6ea4f4c49eb5ca655ffe9bef3b6a98b1a0e87484f", "relations": [{"rule": 2, "type": "equivalent", "target": "0c8d1ecbb6aae9ff0d34325d9b83d568", "evidence": {"same_day": true, "patch_ids": ["69ebb07e5bcd7b2d9d9bfa4f1d54662d"], "statement_hash": "9d0ca5ad3289b329470f78c6ea4f4c49eb5ca655ffe9bef3b6a98b1a0e87484f"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "0c8d1ecbb6aae9ff0d34325d9b83d568", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "禁止复制已失效的复制槽", "evidence": {"same_day": true, "patch_ids": ["69ebb07e5bcd7b2d9d9bfa4f1d54662d"], "statement_hash": "9d0ca5ad3289b329470f78c6ea4f4c49eb5ca655ffe9bef3b6a98b1a0e87484f"}, "url": "/docs/compare/?release=16.9#16.9-80b936166da650b8", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}]}, {"id": "17.5-d0e83697be29c629", "cves": [], "html": "禁止在非热备模式的备库上恢复逻辑复制槽（Masahiko Sawada）§
\n这可以防止在 wal_level 过低的情况下，槽在提升后仍然保持有效的场景。
防止在逻辑解码的“快进”模式中过度推进 catalog xmin（Zhijie Hou）§
\n这个错误可能导致已删除的目录条目被清理掉，即使 WAL 读取进程仍可能需要它们。
", "text": "防止在逻辑解码的“快进”模式中过度推进 catalog xmin（Zhijie Hou）§ 这个错误可能导致已删除的目录条目被清理掉，即使 WAL 读取进程仍可能需要它们。", "title": "防止在逻辑解码的“快进”模式中过度推进 catalog xmin", "commits": ["36148b22e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "f4bf34acb275b131516221a7e9876ac9db8182e152764c449b6c329ee9bc81f4", "section_path": ["变更"], "commit_groups": [["1f63b3626", "21a7caeeb", "36148b22e", "aaf9e95e8", "d65485b02", "f6429bd7d"]], "identity_text": "Prevent over-advancement of catalog xmin in fast forward mode of logical decoding (Zhijie Hou) This mistake could allow deleted catalog entries to be vacuumed away even though they were still potentially needed by the WAL-reading process.", "commit_aliases": ["1f63b3626", "21a7caeeb", "36148b22e", "aaf9e95e8", "d65485b02", "f6429bd7d"], "source_commits": ["36148b22e"], "source_entry_id": "17.5/changes/037", "db_id": "db9ffe506fd9139225111a635c8cd253", "patch_ids": ["c6475433b3466d0d333287697a22d76c"], "statement_hash": "31124da856306a5fd3e362458ee2fb654f10aae3d57980427c12efefa655eb2a", "relations": [{"rule": 2, "type": "equivalent", "target": "3ab082e1dcff51c82a077f2f62e6407c", "evidence": {"same_day": true, "patch_ids": ["c6475433b3466d0d333287697a22d76c"], "statement_hash": "31124da856306a5fd3e362458ee2fb654f10aae3d57980427c12efefa655eb2a"}}, {"rule": 2, "type": "equivalent", "target": "57b3f47815396fdd9a70a193be305bf1", "evidence": {"same_day": true, "patch_ids": ["c6475433b3466d0d333287697a22d76c"], "statement_hash": "31124da856306a5fd3e362458ee2fb654f10aae3d57980427c12efefa655eb2a"}}, {"rule": 2, "type": "equivalent", "target": "cfae289c787a92c54518341586bfbe9a", "evidence": {"same_day": true, "patch_ids": ["c6475433b3466d0d333287697a22d76c"], "statement_hash": "31124da856306a5fd3e362458ee2fb654f10aae3d57980427c12efefa655eb2a"}}, {"rule": 2, "type": "equivalent", "target": "ddf70cdfdcf26f0a407827ed50eeab10", "evidence": {"same_day": true, "patch_ids": ["c6475433b3466d0d333287697a22d76c"], "statement_hash": "31124da856306a5fd3e362458ee2fb654f10aae3d57980427c12efefa655eb2a"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "ddf70cdfdcf26f0a407827ed50eeab10", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "防止在逻辑解码的“快进”模式中过度推进 catalog xmin", "evidence": {"same_day": true, "patch_ids": ["c6475433b3466d0d333287697a22d76c"], "statement_hash": "31124da856306a5fd3e362458ee2fb654f10aae3d57980427c12efefa655eb2a"}, "url": "/docs/compare/?release=16.9#16.9-c9dae01c18776f9c", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "cfae289c787a92c54518341586bfbe9a", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "防止在逻辑解码的“快进”模式中过度推进 catalog xmin", "evidence": {"same_day": true, "patch_ids": ["c6475433b3466d0d333287697a22d76c"], "statement_hash": "31124da856306a5fd3e362458ee2fb654f10aae3d57980427c12efefa655eb2a"}, "url": "/docs/compare/?release=15.13#15.13-bb45c4bf697c7ebc", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "3ab082e1dcff51c82a077f2f62e6407c", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "防止在逻辑解码的“快进”模式中过度推进 catalog xmin", "evidence": {"same_day": true, "patch_ids": ["c6475433b3466d0d333287697a22d76c"], "statement_hash": "31124da856306a5fd3e362458ee2fb654f10aae3d57980427c12efefa655eb2a"}, "url": "/docs/compare/?release=14.18#14.18-bec28c31b4951bab", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "57b3f47815396fdd9a70a193be305bf1", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "防止在逻辑解码的“快进”模式中过度推进 catalog xmin", "evidence": {"same_day": true, "patch_ids": ["c6475433b3466d0d333287697a22d76c"], "statement_hash": "31124da856306a5fd3e362458ee2fb654f10aae3d57980427c12efefa655eb2a"}, "url": "/docs/compare/?release=13.21#13.21-0d96e68077e9aca8", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-e21de69a327984e5", "cves": [], "html": "避免在不需要强锁的 DDL 操作影响正在进行逻辑复制的表时丢失数据（Shlok Kyal，Hayato Kuroda）§ §
\nDDL 命令导致的目录变更未被反映到 WAL 解码进程中，使其可能使用过期的目录数据解码后续变更，很可能导致数据损坏。
", "text": "避免在不需要强锁的 DDL 操作影响正在进行逻辑复制的表时丢失数据（Shlok Kyal，Hayato Kuroda）§ § DDL 命令导致的目录变更未被反映到 WAL 解码进程中，使其可能使用过期的目录数据解码后续变更，很可能导致数据损坏。", "title": "避免在不需要强锁的 DDL 操作影响正在进行逻辑复制的表时丢失数据", "commits": ["cadaf0ac4", "d96206f25"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "859430c59211b2c40bad258ebf9a0117a784bbddbd35b1aa58d382c0c5acd03c", "section_path": ["变更"], "commit_groups": [["0434033e8", "247ee9415", "4909b38af", "9a2f8b4f0", "9f21be08e", "cadaf0ac4"], ["4164d6976", "50b8ad30f", "90bc4523f", "9987c9466", "bb1bc9fa9", "d96206f25"]], "identity_text": "Avoid data loss when DDL operations that don't take a strong lock affect tables that are being logically replicated (Shlok Kyal, Hayato Kuroda) The catalog changes caused by the DDL command were not reflected into WAL-decoding processes, allowing them to decode subsequent changes using stale catalog data, probably resulting in data corruption.", "commit_aliases": ["0434033e8", "247ee9415", "4164d6976", "4909b38af", "50b8ad30f", "90bc4523f", "9987c9466", "9a2f8b4f0", "9f21be08e", "bb1bc9fa9", "cadaf0ac4", "d96206f25"], "source_commits": ["cadaf0ac4", "d96206f25"], "source_entry_id": "17.5/changes/038", "db_id": "8e6377590f7704ee937288d5751d0fe8", "patch_ids": ["3b9707f5e94616c6b08bba7b727d1833", "7aa92ec4c1375172371c770fad1e069d"], "statement_hash": "5087b6eeaa58053beb4e5956f3a1760c3fdcd576933d1be27f37a897f9b40e9a", "relations": [{"rule": 2, "type": "equivalent", "target": "19e936ef0715c52fd027234b084245a4", "evidence": {"same_day": true, "patch_ids": ["3b9707f5e94616c6b08bba7b727d1833", "7aa92ec4c1375172371c770fad1e069d"], "statement_hash": "5087b6eeaa58053beb4e5956f3a1760c3fdcd576933d1be27f37a897f9b40e9a"}}, {"rule": 2, "type": "equivalent", "target": "db54a729c489a33329efd16078c5f632", "evidence": {"same_day": true, "patch_ids": ["3b9707f5e94616c6b08bba7b727d1833", "7aa92ec4c1375172371c770fad1e069d"], "statement_hash": "5087b6eeaa58053beb4e5956f3a1760c3fdcd576933d1be27f37a897f9b40e9a"}}, {"rule": 2, "type": "equivalent", "target": "ee4a2645d0b3d70cbf64253af5bf4bbd", "evidence": {"same_day": true, "patch_ids": ["3b9707f5e94616c6b08bba7b727d1833", "7aa92ec4c1375172371c770fad1e069d"], "statement_hash": "5087b6eeaa58053beb4e5956f3a1760c3fdcd576933d1be27f37a897f9b40e9a"}}, {"rule": 2, "type": "equivalent", "target": "f2d1d9e7b4a609d7869646462b740f14", "evidence": {"same_day": true, "patch_ids": ["3b9707f5e94616c6b08bba7b727d1833", "7aa92ec4c1375172371c770fad1e069d"], "statement_hash": "5087b6eeaa58053beb4e5956f3a1760c3fdcd576933d1be27f37a897f9b40e9a"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "db54a729c489a33329efd16078c5f632", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "避免在不需要强锁的 DDL 操作影响正在进行逻辑复制的表时丢失数据", "evidence": {"same_day": true, "patch_ids": ["3b9707f5e94616c6b08bba7b727d1833", "7aa92ec4c1375172371c770fad1e069d"], "statement_hash": "5087b6eeaa58053beb4e5956f3a1760c3fdcd576933d1be27f37a897f9b40e9a"}, "url": "/docs/compare/?release=16.9#16.9-99af33434b873ed3", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "19e936ef0715c52fd027234b084245a4", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "避免在不需要强锁的 DDL 操作影响正在进行逻辑复制的表时丢失数据", "evidence": {"same_day": true, "patch_ids": ["3b9707f5e94616c6b08bba7b727d1833", "7aa92ec4c1375172371c770fad1e069d"], "statement_hash": "5087b6eeaa58053beb4e5956f3a1760c3fdcd576933d1be27f37a897f9b40e9a"}, "url": "/docs/compare/?release=15.13#15.13-2f66029919c20aba", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "f2d1d9e7b4a609d7869646462b740f14", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "避免在不需要强锁的 DDL 操作影响正在进行逻辑复制的表时丢失数据", "evidence": {"same_day": true, "patch_ids": ["3b9707f5e94616c6b08bba7b727d1833", "7aa92ec4c1375172371c770fad1e069d"], "statement_hash": "5087b6eeaa58053beb4e5956f3a1760c3fdcd576933d1be27f37a897f9b40e9a"}, "url": "/docs/compare/?release=14.18#14.18-f53a16ec53117501", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "ee4a2645d0b3d70cbf64253af5bf4bbd", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "避免在不需要强锁的 DDL 操作影响正在进行逻辑复制的表时丢失数据", "evidence": {"same_day": true, "patch_ids": ["3b9707f5e94616c6b08bba7b727d1833", "7aa92ec4c1375172371c770fad1e069d"], "statement_hash": "5087b6eeaa58053beb4e5956f3a1760c3fdcd576933d1be27f37a897f9b40e9a"}, "url": "/docs/compare/?release=13.21#13.21-c43037ec57336487", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-76d7d613d8c9d02f", "cves": [], "html": "防止当应用工作进程遇到错误但该错误被捕获且未导致工作进程退出时，复制来源被错误重置的问题（Hayato Kuroda）§
\n此错误可能导致重复数据被应用。
", "text": "防止当应用工作进程遇到错误但该错误被捕获且未导致工作进程退出时，复制来源被错误重置的问题（Hayato Kuroda）§ 此错误可能导致重复数据被应用。", "title": "防止当应用工作进程遇到错误但该错误被捕获且未导致工作进程退出时，复制来源被错误重置的问题", "commits": ["05676d87e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "ebab63d5309df5859384f55a3a70385705d9503e7d28d057b679d7b2920df907", "section_path": ["变更"], "commit_groups": [["05676d87e", "0de091a4b", "0e091ce40"]], "identity_text": "Prevent incorrect reset of replication origin when an apply worker encounters an error but the error is caught and does not result in worker exit (Hayato Kuroda) This mistake could allow duplicate data to be applied.", "commit_aliases": ["05676d87e", "0de091a4b", "0e091ce40"], "source_commits": ["05676d87e"], "source_entry_id": "17.5/changes/039", "db_id": "97fc95fe95eed695a9fba5b146e4972e", "patch_ids": ["3f57aa19ed6dd957d617a77afd66ca76"], "statement_hash": "34fb209a9078179d510b0d8ddd2899638bfb64344ca3c532392dcbafdf15fe64", "relations": [{"rule": 2, "type": "equivalent", "target": "c8feb35ceaa7026c93c8c635b74fe68a", "evidence": {"same_day": true, "patch_ids": ["3f57aa19ed6dd957d617a77afd66ca76"], "statement_hash": "34fb209a9078179d510b0d8ddd2899638bfb64344ca3c532392dcbafdf15fe64"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "c8feb35ceaa7026c93c8c635b74fe68a", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "防止当应用工作进程遇到错误但该错误被捕获且未导致工作进程退出时，复制来源被错误重置的问题", "evidence": {"same_day": true, "patch_ids": ["3f57aa19ed6dd957d617a77afd66ca76"], "statement_hash": "34fb209a9078179d510b0d8ddd2899638bfb64344ca3c532392dcbafdf15fe64"}, "url": "/docs/compare/?release=16.9#16.9-4269b86b0113c792", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}]}, {"id": "17.5-695e58875a412993", "cves": [], "html": "修复逻辑复制中订阅端分区表具有 BRIN 索引时的崩溃问题（Tom Lane）§
", "text": "修复逻辑复制中订阅端分区表具有 BRIN 索引时的崩溃问题（Tom Lane）§", "title": "修复逻辑复制中订阅端分区表具有 BRIN 索引时的崩溃问题", "commits": ["788baa9a2"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "d84fdf9b85f2349cdb4e77f44a430312497a3ac5a7fb01d59a901f52ad50266c", "section_path": ["变更"], "commit_groups": [["788baa9a2", "9ff68679b"]], "identity_text": "Fix crash in logical replication if the subscriber's partitioned table has a BRIN index (Tom Lane)", "commit_aliases": ["788baa9a2", "9ff68679b"], "source_commits": ["788baa9a2"], "source_entry_id": "17.5/changes/040", "db_id": "4437e7e953c6617616f898acb66311be", "patch_ids": ["a275b46b93cee650f3a78dd55b93f1bd"], "statement_hash": "25566aca909c4ee454884d933f692e4c902ba99d38c37468b2f76c8f9ed1a85d", "relations": [], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.5-2069efadcbfce474", "cves": [], "html": "避免在逻辑复制索引查找中重复创建快照（Heikki Linnakangas）§ §
", "text": "避免在逻辑复制索引查找中重复创建快照（Heikki Linnakangas）§ §", "title": "避免在逻辑复制索引查找中重复创建快照", "commits": ["c1dd3a944", "f1ef111a0"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "90d0201eb3e09e67418e69ae62d6919644033c126b99c25ef89c740adc02a9a4", "section_path": ["变更"], "commit_groups": [["136e68b46", "324e0b656", "6c1e79589", "d765226cb", "f1ef111a0", "f7c566a1a"], ["236750317", "2ef048855", "50c589992", "8171d2dae", "9b3914f18", "c1dd3a944"]], "identity_text": "Avoid duplicate snapshot creation in logical replication index lookups (Heikki Linnakangas)", "commit_aliases": ["136e68b46", "236750317", "2ef048855", "324e0b656", "50c589992", "6c1e79589", "8171d2dae", "9b3914f18", "c1dd3a944", "d765226cb", "f1ef111a0", "f7c566a1a"], "source_commits": ["c1dd3a944", "f1ef111a0"], "source_entry_id": "17.5/changes/041", "db_id": "68a6f444e2dd1111866e1692a09eaee9", "patch_ids": ["1adc95ac621663bc7fa51f18ad33a68d", "809047aed79be0ed50900ccbf42f80fa"], "statement_hash": "16fba735d9e2dacfd355019baedc5bac39309c551378ee63052a10c4debdade9", "relations": [{"rule": 2, "type": "equivalent", "target": "27c56fefd26a3de8d757bbd085e3ccf7", "evidence": {"same_day": true, "patch_ids": ["1adc95ac621663bc7fa51f18ad33a68d", "809047aed79be0ed50900ccbf42f80fa"], "statement_hash": "16fba735d9e2dacfd355019baedc5bac39309c551378ee63052a10c4debdade9"}}, {"rule": 2, "type": "equivalent", "target": "4cbd410dcacccd81b5e565436db7bc7a", "evidence": {"same_day": true, "patch_ids": ["1adc95ac621663bc7fa51f18ad33a68d", "809047aed79be0ed50900ccbf42f80fa"], "statement_hash": "16fba735d9e2dacfd355019baedc5bac39309c551378ee63052a10c4debdade9"}}, {"rule": 2, "type": "equivalent", "target": "62d7ad831c6b591f2d8c9f0a041d221b", "evidence": {"same_day": true, "patch_ids": ["1adc95ac621663bc7fa51f18ad33a68d", "809047aed79be0ed50900ccbf42f80fa"], "statement_hash": "16fba735d9e2dacfd355019baedc5bac39309c551378ee63052a10c4debdade9"}}, {"rule": 2, "type": "equivalent", "target": "c4856066739f35020574380d1ebe619e", "evidence": {"same_day": true, "patch_ids": ["1adc95ac621663bc7fa51f18ad33a68d", "809047aed79be0ed50900ccbf42f80fa"], "statement_hash": "16fba735d9e2dacfd355019baedc5bac39309c551378ee63052a10c4debdade9"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "c4856066739f35020574380d1ebe619e", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "避免在逻辑复制索引查找中重复创建快照", "evidence": {"same_day": true, "patch_ids": ["1adc95ac621663bc7fa51f18ad33a68d", "809047aed79be0ed50900ccbf42f80fa"], "statement_hash": "16fba735d9e2dacfd355019baedc5bac39309c551378ee63052a10c4debdade9"}, "url": "/docs/compare/?release=16.9#16.9-844f220134ec081b", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "4cbd410dcacccd81b5e565436db7bc7a", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "避免在逻辑复制索引查找中重复创建快照", "evidence": {"same_day": true, "patch_ids": ["1adc95ac621663bc7fa51f18ad33a68d", "809047aed79be0ed50900ccbf42f80fa"], "statement_hash": "16fba735d9e2dacfd355019baedc5bac39309c551378ee63052a10c4debdade9"}, "url": "/docs/compare/?release=15.13#15.13-a7ab6f2ad8ceed1e", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "62d7ad831c6b591f2d8c9f0a041d221b", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "避免在逻辑复制索引查找中重复创建快照", "evidence": {"same_day": true, "patch_ids": ["1adc95ac621663bc7fa51f18ad33a68d", "809047aed79be0ed50900ccbf42f80fa"], "statement_hash": "16fba735d9e2dacfd355019baedc5bac39309c551378ee63052a10c4debdade9"}, "url": "/docs/compare/?release=14.18#14.18-8a94534beb8d394b", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "27c56fefd26a3de8d757bbd085e3ccf7", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "避免在逻辑复制索引查找中重复创建快照", "evidence": {"same_day": true, "patch_ids": ["1adc95ac621663bc7fa51f18ad33a68d", "809047aed79be0ed50900ccbf42f80fa"], "statement_hash": "16fba735d9e2dacfd355019baedc5bac39309c551378ee63052a10c4debdade9"}, "url": "/docs/compare/?release=13.21#13.21-b909fdf92799340c", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}, {"id": "17.5-35844b784dd5bae0", "cves": [], "html": "改进对混合来源订阅的检测（Hou Zhijie，Shlok Kyal）§
\n在创建订阅时，如果被订阅的表同时通过其他发布被关注，会发出警告，因为这可能导致接收重复数据。此变更改进了该逻辑，使其也能检测到通过另一个发布关注的是分区父表或子表的情况。
", "text": "改进对混合来源订阅的检测（Hou Zhijie，Shlok Kyal）§ 在创建订阅时，如果被订阅的表同时通过其他发布被关注，会发出警告，因为这可能导致接收重复数据。此变更改进了该逻辑，使其也能检测到通过另一个发布关注的是分区父表或子表的情况。", "title": "改进对混合来源订阅的检测", "commits": ["0ae1245e0"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "1ecc4b6db4538add2189b14996b49c502d9677d4d0c8471c2ade7da1e67ba5a0", "section_path": ["变更"], "commit_groups": [["0ae1245e0", "1c2a2354c", "b4e0d0c53"]], "identity_text": "Improve detection of mixed-origin subscriptions (Hou Zhijie, Shlok Kyal) Subscription creation gives a warning if a subscribed-to table is also being followed through other publications, since that could cause duplicate data to be received. This change improves that logic to also detect cases where a partition parent or child table is the one being followed through another publication.", "commit_aliases": ["0ae1245e0", "1c2a2354c", "b4e0d0c53"], "source_commits": ["0ae1245e0"], "source_entry_id": "17.5/changes/042", "db_id": "44f32c590db44e0e093238175b097e5c", "patch_ids": ["a9dcfd6c5ab2c0d0072c9c34d19ba607"], "statement_hash": "a8411c07b850b1506fee93c6db5a926461b099a56d515bc2a262b9bfde26492b", "relations": [{"rule": 2, "type": "equivalent", "target": "9f81f44ae53fd35d2b6ab6323f017683", "evidence": {"same_day": true, "patch_ids": ["a9dcfd6c5ab2c0d0072c9c34d19ba607"], "statement_hash": "a8411c07b850b1506fee93c6db5a926461b099a56d515bc2a262b9bfde26492b"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "9f81f44ae53fd35d2b6ab6323f017683", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "改进对混合来源订阅的检测", "evidence": {"same_day": true, "patch_ids": ["a9dcfd6c5ab2c0d0072c9c34d19ba607"], "statement_hash": "a8411c07b850b1506fee93c6db5a926461b099a56d515bc2a262b9bfde26492b"}, "url": "/docs/compare/?release=16.9#16.9-5ae54dbf9fc83b1d", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}]}, {"id": "17.5-5d0c95873c035713", "cves": [], "html": "修复关于不正确恢复时间线选择的错误消息中的检查点详情错误（David Steele）§
\n如果请求的恢复时间线不可达，报告的检查点和时间线应该是从 backup_label 中读取的值（如果有的话）。之前此消息报告的是控制文件中的值，这在没有 backup_label 从控制文件恢复时是正确的，但在有 backup_label 时则不正确。
", "text": "修复关于不正确恢复时间线选择的错误消息中的检查点详情错误（David Steele）§ 如果请求的恢复时间线不可达，报告的检查点和时间线应该是从 backup_label 中读取的值（如果有的话）。之前此消息报告的是控制文件中的值，这在没有 backup_label 从控制文件恢复时是正确的，但在有 backup_label 时则不正确。", "title": "修复关于不正确恢复时间线选择的错误消息中的检查点详情错误", "commits": ["29cce279b"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "4a11d4bbc124f676a937847b289634056e22305c96388148c6589a244d33525a", "section_path": ["变更"], "commit_groups": [["29cce279b", "62bed7bb0", "71f17823b", "b4969a296"]], "identity_text": "Fix wrong checkpoint details in error message about incorrect recovery timeline choice (David Steele) If the requested recovery timeline is not reachable, the reported checkpoint and timeline should be the values read from the backup_label, if there is one. This message previously reported values from the control file, which is correct when recovering from the control file without a backup_label, but not when there is a backup_label.", "commit_aliases": ["29cce279b", "62bed7bb0", "71f17823b", "b4969a296"], "source_commits": ["29cce279b"], "source_entry_id": "17.5/changes/043", "db_id": "a246338555d823bc8f689670b84ea7a0", "patch_ids": ["791e0478918d750ff09e10d599952384"], "statement_hash": "e2dfc107fdae95cf7907303d4f0659f00f9b7c145f7fc3cf16d5b0f4d82af4ff", "relations": [{"rule": 2, "type": "equivalent", "target": "54c2c91919ba0bb07a3b8c1d61f42e31", "evidence": {"same_day": true, "patch_ids": ["791e0478918d750ff09e10d599952384"], "statement_hash": "e2dfc107fdae95cf7907303d4f0659f00f9b7c145f7fc3cf16d5b0f4d82af4ff"}}, {"rule": 2, "type": "equivalent", "target": "98f7fe84bec7c123507049c72ef3a854", "evidence": {"same_day": true, "patch_ids": ["791e0478918d750ff09e10d599952384"], "statement_hash": "e2dfc107fdae95cf7907303d4f0659f00f9b7c145f7fc3cf16d5b0f4d82af4ff"}}], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "98f7fe84bec7c123507049c72ef3a854", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "修复关于不正确恢复时间线选择的错误消息中的检查点详情错误", "evidence": {"same_day": true, "patch_ids": ["791e0478918d750ff09e10d599952384"], "statement_hash": "e2dfc107fdae95cf7907303d4f0659f00f9b7c145f7fc3cf16d5b0f4d82af4ff"}, "url": "/docs/compare/?release=16.9#16.9-a1968804eab98396", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "54c2c91919ba0bb07a3b8c1d61f42e31", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "修复关于不正确恢复时间线选择的错误消息中的检查点详情错误", "evidence": {"same_day": true, "patch_ids": ["791e0478918d750ff09e10d599952384"], "statement_hash": "e2dfc107fdae95cf7907303d4f0659f00f9b7c145f7fc3cf16d5b0f4d82af4ff"}, "url": "/docs/compare/?release=15.13#15.13-a501f629b2353dfa", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}]}, {"id": "17.5-9bcbd09b8a148aa1", "cves": [], "html": "修复 smgropen() 中的操作顺序（Andres Freund）§
确保在调用 smgr_open 回调之前，SMgrRelation 对象已经完成初始化，这样一旦回调失败，就能正确清理。
", "text": "修复 smgropen() 中的操作顺序（Andres Freund）§ 确保在调用 smgr_open 回调之前，SMgrRelation 对象已经完成初始化，这样一旦回调失败，就能正确清理。", "title": "修复 smgropen() 中的操作顺序", "commits": ["ee578921b"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "a12840fe271d563a4282c4d0c898af06886299f61d8c58d93ccecf5ae16865eb", "section_path": ["变更"], "commit_groups": [["499faf906", "ee578921b"]], "identity_text": "Fix order of operations in smgropen() (Andres Freund) Ensure that the SMgrRelation object is fully initialized before calling the smgr_open callback, so that it can be cleaned up properly if the callback fails.", "commit_aliases": ["499faf906", "ee578921b"], "source_commits": ["ee578921b"], "source_entry_id": "17.5/changes/044", "db_id": "e9a50ec7ca67f2c4679255406d0c6a77", "patch_ids": ["f481d5337e18827c4d8faa8c466bd4df"], "statement_hash": "cb989da0ed651666f73571842ce104ed836dcfc77ac8d00535a608e0ab8d5c3d", "relations": [], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.5-6642898be230c9df", "cves": [], "html": "移除 pgstat_report_stat() 中不正确的断言（Michael Paquier）§
修复 gistFindCorrectParent() 中过于严格的断言（Heikki Linnakangas）§
避免在 maintenance_work_mem 值非常小时，并行 vacuum 中发生断言失败（Masahiko Sawada）§
修复当主库重启时备库中罕见的断言失败（Heikki Linnakangas）§
", "text": "修复当主库重启时备库中罕见的断言失败（Heikki Linnakangas）§", "title": "修复当主库重启时备库中罕见的断言失败", "commits": ["302ce5bd9"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "aa4b6026d251c1bfa1a3979952d3fad2379c2ebb2330085a44a74725c6290c3f", "section_path": ["变更"], "commit_groups": [["2817525f0", "2f33de3cd", "302ce5bd9", "66235baab", "b30c77a0e"]], "identity_text": "Fix rare assertion failure in standby servers when the primary is restarted (Heikki Linnakangas)", "commit_aliases": ["2817525f0", "2f33de3cd", "302ce5bd9", "66235baab", "b30c77a0e"], "source_commits": ["302ce5bd9"], "source_entry_id": "17.5/changes/048", "db_id": "2e5dab43fa75fedfa20b60368b606121", "patch_ids": ["9563520801fea9e205ae16e82ea7855b"], "statement_hash": "e03ba0b3fc8a8995594cd92902313647f941a8d013faea0b71e91ba7c6dcbd47", "relations": [{"rule": 2, "type": "equivalent", "target": "66b073699b174d84b287cd5ba0bb5c0b", "evidence": {"same_day": true, "patch_ids": ["9563520801fea9e205ae16e82ea7855b"], "statement_hash": "e03ba0b3fc8a8995594cd92902313647f941a8d013faea0b71e91ba7c6dcbd47"}}, {"rule": 2, "type": "equivalent", "target": "92378c11f17a7de0c034937e90f5f438", "evidence": {"same_day": true, "patch_ids": ["9563520801fea9e205ae16e82ea7855b"], "statement_hash": "e03ba0b3fc8a8995594cd92902313647f941a8d013faea0b71e91ba7c6dcbd47"}}, {"rule": 2, "type": "equivalent", "target": "b243add7e25b9349d3df07b8524bbb10", "evidence": {"same_day": true, "patch_ids": ["9563520801fea9e205ae16e82ea7855b"], "statement_hash": "e03ba0b3fc8a8995594cd92902313647f941a8d013faea0b71e91ba7c6dcbd47"}}], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "b243add7e25b9349d3df07b8524bbb10", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "修复当主库重启时备库中罕见的断言失败", "evidence": {"same_day": true, "patch_ids": ["9563520801fea9e205ae16e82ea7855b"], "statement_hash": "e03ba0b3fc8a8995594cd92902313647f941a8d013faea0b71e91ba7c6dcbd47"}, "url": "/docs/compare/?release=16.9#16.9-d4a51d0e3bd64212", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "66b073699b174d84b287cd5ba0bb5c0b", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "修复当主库重启时备库中罕见的断言失败", "evidence": {"same_day": true, "patch_ids": ["9563520801fea9e205ae16e82ea7855b"], "statement_hash": "e03ba0b3fc8a8995594cd92902313647f941a8d013faea0b71e91ba7c6dcbd47"}, "url": "/docs/compare/?release=15.13#15.13-a5839a410d8f1699", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "92378c11f17a7de0c034937e90f5f438", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "修复当主库重启时备库中罕见的断言失败", "evidence": {"same_day": true, "patch_ids": ["9563520801fea9e205ae16e82ea7855b"], "statement_hash": "e03ba0b3fc8a8995594cd92902313647f941a8d013faea0b71e91ba7c6dcbd47"}, "url": "/docs/compare/?release=14.18#14.18-c0e9cfa3a39cfe3a", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}]}, {"id": "17.5-49aae01e3ea0240a", "cves": [], "html": "在 PL/pgSQL 中，避免当可滚动游标定义在简单 SELECT 查询上时出现 “unexpected plan node type” 错误（Andrei Lepikhov）§expression
在 pg_dump 的 --clean 模式中不再尝试删除单个索引分区（Jian He）§
服务器会拒绝这样的 DROP 命令。这实际上没有什么影响，因为这些分区在后续对其父表或分区索引执行 DROP 时会被自动删除。但是，尝试删除时报告的错误会在以 --single-transaction 模式恢复时造成问题。
在 pg_dumpall 中，避免在 pg_auth_members 包含无效角色 OID 时生成无效的角色 GRANT 命令（Tom Lane）§
改为打印警告并跳过该条目。这能更好地处理在后端分支中因 GRANT 和 DROP ROLE 之间的竞态条件而导致的目录损坏。
在 pg_amcheck 和 pg_upgrade 中，使用正确的函数释放由 libpq 分配的内存（Michael Paquier，Ranier Vilela）§ § §
\n这些疏忽可能导致在某些 Windows 构建配置下崩溃，例如调试版本的 libpq 被非调试版本的调用程序使用时。
", "text": "在 pg_amcheck 和 pg_upgrade 中，使用正确的函数释放由 libpq 分配的内存（Michael Paquier，Ranier Vilela）§ § § 这些疏忽可能导致在某些 Windows 构建配置下崩溃，例如调试版本的 libpq 被非调试版本的调用程序使用时。", "title": "在 pg_amcheck 和 pg_upgrade 中，使用正确的函数释放由 libpq 分配的内存", "commits": ["0851b6573", "ee78823ff", "f903d4da9"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "00f8f6c6fde75a5bfd02f8963be768516755c2d26974f33d832891c2dd5b97e5", "section_path": ["变更"], "commit_groups": [["0851b6573", "57467ec7b", "945126234"], ["2a083ab80", "9ca2145b0", "ee78823ff"], ["35a591a04", "48e4ae9a0", "816149dc6", "ec741d480", "f903d4da9"]], "identity_text": "In pg_amcheck and pg_upgrade, use the correct function to free allocations made by libpq (Michael Paquier, Ranier Vilela) These oversights could result in crashes in certain Windows build configurations, such as a debug build of libpq used by a non-debug build of the calling application.", "commit_aliases": ["0851b6573", "2a083ab80", "35a591a04", "48e4ae9a0", "57467ec7b", "816149dc6", "945126234", "9ca2145b0", "ec741d480", "ee78823ff", "f903d4da9"], "source_commits": ["0851b6573", "ee78823ff", "f903d4da9"], "source_entry_id": "17.5/changes/052", "db_id": "8a119f30aebe8217bd24c84ac83c5357", "patch_ids": ["34b26a2c0bc11f53689f56c106a22dd3", "5db415aa9fa83b6f5da048d1aaff9003", "7d2d1045e1e8db0bcdd0ec88b43e297b"], "statement_hash": "147a35118d1eb034a96eb96159a572da3cddff6637a9f24a2dbd4d0497d59fb6", "relations": [{"rule": 2, "type": "equivalent", "target": "60340d64ebc76c76673aee7bbdf1bf84", "evidence": {"same_day": true, "patch_ids": ["34b26a2c0bc11f53689f56c106a22dd3", "5db415aa9fa83b6f5da048d1aaff9003", "7d2d1045e1e8db0bcdd0ec88b43e297b"], "statement_hash": "147a35118d1eb034a96eb96159a572da3cddff6637a9f24a2dbd4d0497d59fb6"}}, {"rule": 2, "type": "equivalent", "target": "ec8806ac157013d5a48910bd3a2696f9", "evidence": {"same_day": true, "patch_ids": ["34b26a2c0bc11f53689f56c106a22dd3", "5db415aa9fa83b6f5da048d1aaff9003", "7d2d1045e1e8db0bcdd0ec88b43e297b"], "statement_hash": "147a35118d1eb034a96eb96159a572da3cddff6637a9f24a2dbd4d0497d59fb6"}}, {"rule": 2, "type": "equivalent", "target": "ef4d0bd11b44a555d9ff5417d9062b2d", "evidence": {"same_day": true, "patch_ids": ["34b26a2c0bc11f53689f56c106a22dd3", "5db415aa9fa83b6f5da048d1aaff9003", "7d2d1045e1e8db0bcdd0ec88b43e297b"], "statement_hash": "147a35118d1eb034a96eb96159a572da3cddff6637a9f24a2dbd4d0497d59fb6"}}], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "60340d64ebc76c76673aee7bbdf1bf84", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "在 pg_amcheck 和 pg_upgrade 中，使用正确的函数释放由 libpq 分配的内存", "evidence": {"same_day": true, "patch_ids": ["34b26a2c0bc11f53689f56c106a22dd3", "5db415aa9fa83b6f5da048d1aaff9003", "7d2d1045e1e8db0bcdd0ec88b43e297b"], "statement_hash": "147a35118d1eb034a96eb96159a572da3cddff6637a9f24a2dbd4d0497d59fb6"}, "url": "/docs/compare/?release=16.9#16.9-76778728b70e985f", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "ec8806ac157013d5a48910bd3a2696f9", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "在 pg_amcheck 和 pg_upgrade 中，使用正确的函数释放由 libpq 分配的内存", "evidence": {"same_day": true, "patch_ids": ["34b26a2c0bc11f53689f56c106a22dd3", "5db415aa9fa83b6f5da048d1aaff9003", "7d2d1045e1e8db0bcdd0ec88b43e297b"], "statement_hash": "147a35118d1eb034a96eb96159a572da3cddff6637a9f24a2dbd4d0497d59fb6"}, "url": "/docs/compare/?release=15.13#15.13-9bad788e9e990512", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "ef4d0bd11b44a555d9ff5417d9062b2d", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "在 pg_amcheck 和 pg_upgrade 中，使用正确的函数释放由 libpq 分配的内存", "evidence": {"same_day": true, "patch_ids": ["34b26a2c0bc11f53689f56c106a22dd3", "5db415aa9fa83b6f5da048d1aaff9003", "7d2d1045e1e8db0bcdd0ec88b43e297b"], "statement_hash": "147a35118d1eb034a96eb96159a572da3cddff6637a9f24a2dbd4d0497d59fb6"}, "url": "/docs/compare/?release=14.18#14.18-7a70a94b4f51a3ee", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}]}, {"id": "17.5-60ef3907c8e8a85d", "cves": [], "html": "修复 reindexdb 对并行重建索引操作的调度（Alexander Korotkov）§
\n原先的代码未能达到预期的并行度。
", "text": "修复 reindexdb 对并行重建索引操作的调度（Alexander Korotkov）§ 原先的代码未能达到预期的并行度。", "title": "修复 reindexdb 对并行重建索引操作的调度", "commits": ["09ef2f8df"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "c53a21e29754c5bb26c2e9f0e24672eb9f1f662f2d0df792260f3229ed0981ab", "section_path": ["变更"], "commit_groups": [["09ef2f8df", "682c5be25"]], "identity_text": "Fix reindexdb's scheduling of parallel reindex operations (Alexander Korotkov) The original coding failed to achieve the expected amount of parallelism.", "commit_aliases": ["09ef2f8df", "682c5be25"], "source_commits": ["09ef2f8df"], "source_entry_id": "17.5/changes/053", "db_id": "575a07a33fc92b96172ff638298c2451", "patch_ids": ["421c3df946e276be2ee09356d0dadc82"], "statement_hash": "95350f6e9c6d80196cea726acee69d0fd313959d0375bd8a7921ad3d3c8050d6", "relations": [], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.5-0e11947bab051637", "cves": [], "html": "避免在 contrib/pageinspect 的 heap_page_items() 中因损坏的输入数据而崩溃（Dmitry Kovalenko）§
防止 contrib/pg_freespacemap 的 pg_freespacemap() 中的断言失败（Tender Wang）§
对没有存储的关系（如视图）应用 pg_freespacemap() 会导致断言失败，尽管在非断言构建中没有不良影响。增加了错误检查以拒绝这种情况。
在 contrib/postgres_fdw 中，避免从子查询中上拉限制条件（Alexander Pyhalov）§
此修复可防止罕见的 “unexpected expression in subquery output” 错误。
", "text": "在 contrib/postgres_fdw 中，避免从子查询中上拉限制条件（Alexander Pyhalov）§ 此修复可防止罕见的 “unexpected expression in subquery output” 错误。", "title": "在 contrib/postgres_fdw 中，避免从子查询中上拉限制条件", "commits": ["729fe699e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "8c2b58f0befb5f3f89b421dbdc8c2c864e29fde69143b433e21b23f676399505", "section_path": ["变更"], "commit_groups": [["023fb5127", "729fe699e"]], "identity_text": "In contrib/postgres_fdw, avoid pulling up restriction conditions from subqueries (Alexander Pyhalov) This fix prevents rare cases of unexpected expression in subquery output errors.", "commit_aliases": ["023fb5127", "729fe699e"], "source_commits": ["729fe699e"], "source_entry_id": "17.5/changes/056", "db_id": "59b59c4ce5bad86f8bc9e6ec18d4e3da", "patch_ids": ["50afeb520a37af80d551b825565a54fe"], "statement_hash": "069b46634cf58ca16329cb076bebb0e156339c298d752ec151fa02f9a6dde690", "relations": [], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.5-277d2ff2ba18f1fa", "cves": [], "html": "修复系统 include 目录中存在旧版 libpq_fe.h 时的构建失败（Tom Lane）§
修复在 macOS 15.4 上的构建失败（Tom Lane，Peter Eisentraut）§
\n此 macOS 更新破坏了我们对 strchrnul() 的配置探测。
修复读流按缓冲区数据的 valgrind 标记（Thomas Munro）§
\n这不会影响已发布版本的 PostgreSQL 核心代码，但使用该按缓冲区数据特性的扩展在 valgrind 下测试时，可能会遇到伪失败。
", "text": "修复读流按缓冲区数据的 valgrind 标记（Thomas Munro）§ 这不会影响已发布版本的 PostgreSQL 核心代码，但使用该按缓冲区数据特性的扩展在 valgrind 下测试时，可能会遇到伪失败。", "title": "修复读流按缓冲区数据的 valgrind 标记", "commits": ["57dca6faa"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "274259667367bb8986ecfc5bc79d9a4747768ca05b611b8e37cc5e837d54c741", "section_path": ["变更"], "commit_groups": [["2509b857c", "57dca6faa"], ["2a8a00674"]], "identity_text": "Fix valgrind labeling of per-buffer data of read streams (Thomas Munro) This affects no core code in released versions of PostgreSQL, but an extension using the per-buffer data feature might have encountered spurious failures when being tested under valgrind.", "commit_aliases": ["2509b857c", "2a8a00674", "57dca6faa"], "source_commits": ["2a8a00674", "57dca6faa"], "source_entry_id": "17.5/changes/059", "db_id": "c6006e297ecf4038064cd1324250371a", "patch_ids": ["491722e2b97dbaeb2888757ef951adce", "d7cb4d88d5e633a66c791dab78fc17aa"], "statement_hash": "ea7fd31dbfa9be720f1721891c1b9aaccecce920825505fcbe565b8ce8132714", "relations": [], "version": "17.5", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.5-ef528f149d478c78", "cves": [], "html": "避免 valgrind 对字符串 hash 代码发出告警（John Naylor）§
", "text": "避免 valgrind 对字符串 hash 代码发出告警（John Naylor）§", "title": "避免 valgrind 对字符串 hash 代码发出告警", "commits": ["fde7c0164"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "1c6833d0f5dc0a2d330b2412c1183a030b72fa397987440f6b827220cb5cfff3", "section_path": ["变更"], "commit_groups": [["0600d276d", "fde7c0164"]], "identity_text": "Avoid valgrind complaints about string hashing code (John Naylor)", "commit_aliases": ["0600d276d", "fde7c0164"], "source_commits": ["fde7c0164"], "source_entry_id": "17.5/changes/060", "db_id": "1f341c0f67dfa32ebeb22ab0463e650b", "patch_ids": ["87fc177fd7286e5d7228fe1945112c77"], "statement_hash": "4bf381bd6569b8a6a184430a7870d66d2bf517ddfbdf9674ee35d21f3bea62c2", "relations": [], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.5-1787eeef076438cb", "cves": [], "html": "更新时区数据文件至 tzdata 2025b 版本，包含智利的夏令时法律变更以及伊朗的历史修正（Tom Lane）§
\n新增时区 America/Coyhaique 用于智利的 Aysén 大区，以反映其改为全年使用 UTC-03，从而与 America/Santiago 产生差异。
", "text": "更新时区数据文件至 tzdata 2025b 版本，包含智利的夏令时法律变更以及伊朗的历史修正（Tom Lane）§ 新增时区 America/Coyhaique 用于智利的 Aysén 大区，以反映其改为全年使用 UTC-03，从而与 America/Santiago 产生差异。", "title": "更新时区数据文件至 tzdata 2025b 版本，包含智利的夏令时法律变更以及伊朗的历史修正", "commits": ["5d5970b9f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.5/#RELEASE-17-5-CHANGES", "source_hash": "162778503a7ccc4a487dfcb0fd2c1a4a1147a3e60e11eb85a122c3a26963e300", "section_path": ["变更"], "commit_groups": [["368c3fbf9", "5d5970b9f", "9da548df3", "a144cf145", "e076120d9", "fa4244a43"]], "identity_text": "Update time zone data files to tzdata release 2025b for DST law changes in Chile, plus historical corrections for Iran (Tom Lane) There is a new time zone America/Coyhaique for Chile's Aysén Region, to account for it changing to UTC-03 year-round and thus diverging from America/Santiago.", "commit_aliases": ["368c3fbf9", "5d5970b9f", "9da548df3", "a144cf145", "e076120d9", "fa4244a43"], "source_commits": ["5d5970b9f"], "source_entry_id": "17.5/changes/061", "db_id": "b46b51b6ab58678c9616193380655da3", "patch_ids": ["37a58a33f41e391eeea747c321eac090"], "statement_hash": "c09a94c4e1b7ddfa12a3f8c5c4ab5fff67151ab86b10b4c4da218d744a15f8b4", "relations": [{"rule": 2, "type": "equivalent", "target": "2e73cf839c165cbbaf867b7175690bd0", "evidence": {"same_day": true, "patch_ids": ["37a58a33f41e391eeea747c321eac090"], "statement_hash": "c09a94c4e1b7ddfa12a3f8c5c4ab5fff67151ab86b10b4c4da218d744a15f8b4"}}, {"rule": 2, "type": "equivalent", "target": "85360ac1e18899dc279978e17903e0fd", "evidence": {"same_day": true, "patch_ids": ["37a58a33f41e391eeea747c321eac090"], "statement_hash": "c09a94c4e1b7ddfa12a3f8c5c4ab5fff67151ab86b10b4c4da218d744a15f8b4"}}, {"rule": 2, "type": "equivalent", "target": "89bbdc6060fef88d085afd6409e10416", "evidence": {"same_day": true, "patch_ids": ["37a58a33f41e391eeea747c321eac090"], "statement_hash": "c09a94c4e1b7ddfa12a3f8c5c4ab5fff67151ab86b10b4c4da218d744a15f8b4"}}, {"rule": 2, "type": "equivalent", "target": "c1730518d55761ba90941aa06c170dfb", "evidence": {"same_day": true, "patch_ids": ["37a58a33f41e391eeea747c321eac090"], "statement_hash": "c09a94c4e1b7ddfa12a3f8c5c4ab5fff67151ab86b10b4c4da218d744a15f8b4"}}], "version": "17.5", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "89bbdc6060fef88d085afd6409e10416", "kind": "equivalent", "version": "16.9", "label": "16.9", "title": "更新时区数据文件至 tzdata 2025b 版本，包含智利的夏令时法律变更以及伊朗的历史修正", "evidence": {"same_day": true, "patch_ids": ["37a58a33f41e391eeea747c321eac090"], "statement_hash": "c09a94c4e1b7ddfa12a3f8c5c4ab5fff67151ab86b10b4c4da218d744a15f8b4"}, "url": "/docs/compare/?release=16.9#16.9-edae619b47bafc29", "source_url": "/docs/release/16.9/#RELEASE-16-9-CHANGES"}, {"db_id": "2e73cf839c165cbbaf867b7175690bd0", "kind": "equivalent", "version": "15.13", "label": "15.13", "title": "更新时区数据文件至 tzdata 2025b 版本，包含智利的夏令时法律变更以及伊朗的历史修正", "evidence": {"same_day": true, "patch_ids": ["37a58a33f41e391eeea747c321eac090"], "statement_hash": "c09a94c4e1b7ddfa12a3f8c5c4ab5fff67151ab86b10b4c4da218d744a15f8b4"}, "url": "/docs/compare/?release=15.13#15.13-7905b2aef76f37fd", "source_url": "/docs/release/15.13/#ZH-AUTO-RELEASE-15-SECT2-10"}, {"db_id": "85360ac1e18899dc279978e17903e0fd", "kind": "equivalent", "version": "14.18", "label": "14.18", "title": "更新时区数据文件至 tzdata 2025b 版本，包含智利的夏令时法律变更以及伊朗的历史修正", "evidence": {"same_day": true, "patch_ids": ["37a58a33f41e391eeea747c321eac090"], "statement_hash": "c09a94c4e1b7ddfa12a3f8c5c4ab5fff67151ab86b10b4c4da218d744a15f8b4"}, "url": "/docs/compare/?release=14.18#14.18-08e4060ba79b5c53", "source_url": "/docs/release/14.18/#ZH-AUTO-RELEASE-14-SECT2-10"}, {"db_id": "c1730518d55761ba90941aa06c170dfb", "kind": "equivalent", "version": "13.21", "label": "13.21", "title": "更新时区数据文件至 tzdata 2025b 版本，包含智利的夏令时法律变更以及伊朗的历史修正", "evidence": {"same_day": true, "patch_ids": ["37a58a33f41e391eeea747c321eac090"], "statement_hash": "c09a94c4e1b7ddfa12a3f8c5c4ab5fff67151ab86b10b4c4da218d744a15f8b4"}, "url": "/docs/compare/?release=13.21#13.21-fa15b367f3d46c9d", "source_url": "/docs/release/13.21/#id-1.11.6.8.6"}]}]}, {"date": "2025-02-20", "build": "17.4", "major": "17", "minor": 4, "manual": "17", "status": "stable", "doc_git": "", "version": "17.4", "eol_date": "2029-11-08", "date_text": "2025-02-20", "supported": true, "manual_url": "/docs/17/release-17-4.html", "source_url": "/docs/release/17.4/", "entry_count": 3, "placeholder": false, "content_hash": "13d99a993508f878b13d14e8e0bf3c5ea9a47998b967b844c83f32020c2e9d04", "manual_build": "17.11", "source_as_of": "", "changes_count": 3, "doc_loaded_at": "2026-09-26T02:56:35.922301", "migration_html": "对于运行 17.X 的用户，无需执行转储/恢复。
\n不过，如果你是从早于 17.1 的版本升级，请参见第 E.11 节。
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\n为 CVE-2025-1094 所做的修改有一个严重的疏忽：PQescapeLiteral() 和 PQescapeIdentifier() 未能遵循其字符串长度参数，而是始终读取到输入字符串的末尾空字符。这导致在调用者打算通过长度参数截断字符串时，输出中包含了不需要的文本。在极端不幸的情况下，可能因读取超出内存末尾而导致崩溃。
此外，修改了所有这些引用函数，使得在检测到无效编码时，仅替换假定字符的第一个字节为无效序列，而不是全部字节。这降低了在调用应用程序对引用后的字符串进行额外处理时出现问题的风险。
", "text": "改进 libpq 引用函数的行为（Andres Freund，Tom Lane）§ § § 为 CVE-2025-1094 所做的修改有一个严重的疏忽：PQescapeLiteral() 和 PQescapeIdentifier() 未能遵循其字符串长度参数，而是始终读取到输入字符串的末尾空字符。这导致在调用者打算通过长度参数截断字符串时，输出中包含了不需要的文本。在极端不幸的情况下，可能因读取超出内存末尾而导致崩溃。 此外，修改了所有这些引用函数，使得在检测到无效编码时，仅替换假定字符的第一个字节为无效序列，而不是全部字节。这降低了在调用应用程序对引用后的字符串进行额外处理时出现问题的风险。", "title": "改进 libpq 引用函数的行为", "commits": ["3977bd298", "3abe6e04c", "a92db3d02"], "section": "变更", "category": "security", "source_url": "/docs/release/17.4/#RELEASE-17-4-CHANGES", "source_hash": "df5454038007b88df8733584820a457d3ac17a4a51865df26d72027ea3fcd906", "section_path": ["变更"], "commit_groups": [["111f4dd27", "1f7a05324", "22ffbbf24", "985908df1", "a92db3d02", "efdadeb22"], ["2226a2e26", "3977bd298", "644b7d686", "9f052613e", "a7f95859e", "f864a4cdf"], ["3abe6e04c", "991a60a9f", "9f45e6a91", "c08309584", "d6d29b213", "e782a63cc"]], "identity_text": "Improve behavior of libpq's quoting functions (Andres Freund, Tom Lane) The changes made for CVE-2025-1094 had one serious oversight: PQescapeLiteral() and PQescapeIdentifier() failed to honor their string length parameter, instead always reading to the input string's trailing null. This resulted in including unwanted text in the output, if the caller intended to truncate the string via the length parameter. With very bad luck it could cause a crash due to reading off the end of memory. In addition, modify all these quoting functions so that when invalid encoding is detected, an invalid sequence is substituted for just the first byte of the presumed character, not all of it. 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对于运行 17.X 的用户，无需执行转储/恢复。
\n不过，如果你是从早于 17.1 的版本升级，请参见第 E.11 节。
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libpq 提供的数据引用函数现在会完全检查其输入的编码有效性。如果检测到无效字符，会尽可能报告错误。对于缺少错误返回机制的函数，输出字符串会被调整以确保服务器会报告无效编码，并且中间处理不会被恰好匹配单引号、反斜杠等的字节所欺骗。
\n此变更的目的是防范在使用这些函数对精心构造的输入进行引用时可能发生的 SQL 注入攻击。当结果字符串直接发送到 PostgreSQL 服务器时没有风险（服务器无论如何都会检查编码），但当它通过 psql 或其他客户端代码传递时存在风险。历史上此类代码未仔细审查编码，在许多情况下如果检测到此类问题也不清楚应该怎么做。
\n此修复仅在数据引用函数、服务器以及任何中间处理对所使用的字符编码达成一致时才有效。插入不可信输入到 SQL 命令中的应用程序应特别注意确保这一点。
\n不使用这些 libpq 函数而引用不可信输入的应用程序和驱动程序可能面临类似问题的风险。它们应首先确认数据在服务器期望的编码中是有效的。
\nPostgreSQL 项目感谢 Stephen Fewer 报告此问题。（CVE-2025-1094）
", "text": "加强 PQescapeString 及相关函数对无效编码输入字符串的防护（Andres Freund，Noah Misch）§ § § § § § libpq 提供的数据引用函数现在会完全检查其输入的编码有效性。如果检测到无效字符，会尽可能报告错误。对于缺少错误返回机制的函数，输出字符串会被调整以确保服务器会报告无效编码，并且中间处理不会被恰好匹配单引号、反斜杠等的字节所欺骗。 此变更的目的是防范在使用这些函数对精心构造的输入进行引用时可能发生的 SQL 注入攻击。当结果字符串直接发送到 PostgreSQL 服务器时没有风险（服务器无论如何都会检查编码），但当它通过 psql 或其他客户端代码传递时存在风险。历史上此类代码未仔细审查编码，在许多情况下如果检测到此类问题也不清楚应该怎么做。 此修复仅在数据引用函数、服务器以及任何中间处理对所使用的字符编码达成一致时才有效。插入不可信输入到 SQL 命令中的应用程序应特别注意确保这一点。 不使用这些 libpq 函数而引用不可信输入的应用程序和驱动程序可能面临类似问题的风险。它们应首先确认数据在服务器期望的编码中是有效的。 PostgreSQL 项目感谢 Stephen Fewer 报告此问题。（CVE-2025-1094）", "title": "加强 PQescapeString 及相关函数对无效编码输入字符串的防护", "commits": ["02d4d87ac", "05abb0f83", "43a77239d", "61ad93cdd", "7d43ca6fe", "85c1fcc65"], "section": "变更", "category": "security", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "4f8e4cecca5724d07f47a43a87054fdf82e0b470cc27db280ae273d75f6aba48", "section_path": ["变更"], "commit_groups": [["0075a5c6c", "5bf12323b", "85c1fcc65", "9862de917", "e1f1b030d", "f9fceef6e"], ["00f1a1f66"], ["01784793f", "02d4d87ac", "46ddf98df", "4ea3f5ef3", "ac00ff1c9", "de4b92f33"], ["05abb0f83", "41343f840", "4a6825c76", "7beb2af5e", "979205e47", "a085fa731"], ["2ae54ae17", "3e98c8ce5", "56aa2dcdd", "5df4e1632", "61ad93cdd", "b1756da75"], ["370c94d4c", "43a77239d", "5dc1e42b4", "92e4170f4", "c906bfe1b", "e0ef3d776"], ["4dc289635", "5bc33cbea", "6e05b195d", "703b3fd5d", "7d43ca6fe", "db3eb0e82"]], "identity_text": "Harden PQescapeString and allied functions against invalidly-encoded input strings (Andres Freund, Noah Misch) Data-quoting functions supplied by libpq now fully check the encoding validity of their input. If invalid characters are detected, they report an error if possible. For the ones that lack an error return convention, the output string is adjusted to ensure that the server will report invalid encoding and no intervening processing will be fooled by bytes that might happen to match single quote, backslash, etc. The purpose of this change is to guard against SQL-injection attacks that are possible if one of these functions is used to quote crafted input. There is no hazard when the resulting string is sent directly to a PostgreSQL server (which would check its encoding anyway), but there is a risk when it is passed through psql or other client-side code. Historically such code has not carefully vetted encoding, and in many cases it's not clear what it should do if it did detect such a problem. This fix is effective only if the data-quoting function, the server, and any intermediate processing agree on the character encoding that's being used. Applications that insert untrusted input into SQL commands should take special care to ensure that that's true. Applications and drivers that quote untrusted input without using these libpq functions may be at risk of similar problems. They should first confirm the data is valid in the encoding expected by the server. The PostgreSQL Project thanks Stephen Fewer for reporting this problem. 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\n这撤销了 v17 中一项后来证明给部分用户带来麻烦的变更。过长名称本应以感知编码的方式截断，但目前先恢复为此前在 NAMEDATALEN-1 字节处盲目截断的行为。
将并行工作进程排除在连接权限检查和限制之外（Tom Lane）§
\n启动并行工作进程时不再检查 datallowconn、rolcanlogin 和 ACL_CONNECT 权限，而是假定领导进程最初通过了类似检查就足够了。这避免了例如当领导进程以缺少登录权限的角色运行时，并行化查询出现意外失败的情况。同样，ReservedConnections、datconnlimit 和 rolconnlimit 限制仅对普通后端执行，且仅计算普通后端的数量来检查是否已达到限制。这些限制旨在防止普通后端过度占用进程槽位——而并行工作进程和其他特殊进程有自己的进程槽池和自己的限制检查。
从 LWLock 等待事件名称中移除 “Lock” 后缀（Bertrand Drouvot）§
\n重构意外导致 pg_stat_activity 视图显示的锁相关等待事件名称带上了 “Lock” 后缀，这除其他影响外，还破坏了它与 pg_wait_events 的连接。
修复带有 ScalarArrayOp（= ANY）条件的 B-树索引扫描可能无法返回所有匹配元组的问题（Peter Geoghegan）§
修复窗口聚合中可能重用过时结果的问题（David Rowley）§
\n具有“运行条件”优化和按引用传递结果类型的窗口聚合可能错误地返回上一个分区的结果，而不是执行新的计算。
", "text": "修复窗口聚合中可能重用过时结果的问题（David Rowley）§ 具有“运行条件”优化和按引用传递结果类型的窗口聚合可能错误地返回上一个分区的结果，而不是执行新的计算。", "title": "修复窗口聚合中可能重用过时结果的问题", "commits": ["9d5ce4f1a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "079d16754e3c6b59efe95be2b2f1d433460eb3e675566a4491ff05fe3c9bcb0a", "section_path": ["变更"], "commit_groups": [["1fe5a347e", "9d5ce4f1a", "c1d6506ac", "d54378e98"]], "identity_text": "Fix possible re-use of stale results in window aggregates (David Rowley) A window aggregate with a run condition optimization and a pass-by-reference result type might incorrectly return the result from the previous partition instead of performing a fresh calculation.", "commit_aliases": ["1fe5a347e", "9d5ce4f1a", "c1d6506ac", "d54378e98"], "source_commits": ["9d5ce4f1a"], "source_entry_id": "17.3/changes/006", "db_id": "8e257e8176086cef546cb8c600a2fb7b", "patch_ids": ["dc92bb8a053fda23c6cdbb5d527dab86"], "statement_hash": "3348968e1772f69b37843c78b6190a0dfa50788f92ee1c5992a55373fd833936", "relations": [{"rule": 2, "type": "equivalent", "target": "c57a5e58b3071a80c1237977113f07bc", "evidence": {"same_day": true, "patch_ids": ["dc92bb8a053fda23c6cdbb5d527dab86"], "statement_hash": "3348968e1772f69b37843c78b6190a0dfa50788f92ee1c5992a55373fd833936"}}, {"rule": 2, "type": "equivalent", "target": "ee143dad58aee392b913c703e066d97d", "evidence": {"same_day": true, "patch_ids": ["dc92bb8a053fda23c6cdbb5d527dab86"], "statement_hash": "3348968e1772f69b37843c78b6190a0dfa50788f92ee1c5992a55373fd833936"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "c57a5e58b3071a80c1237977113f07bc", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "修复窗口聚合中可能重用过时结果的问题", "evidence": {"same_day": true, "patch_ids": ["dc92bb8a053fda23c6cdbb5d527dab86"], "statement_hash": "3348968e1772f69b37843c78b6190a0dfa50788f92ee1c5992a55373fd833936"}, "url": "/docs/compare/?release=16.7#16.7-b15a407e0c13a1e0", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "ee143dad58aee392b913c703e066d97d", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "修复窗口聚合中可能重用过时结果的问题", "evidence": {"same_day": true, "patch_ids": ["dc92bb8a053fda23c6cdbb5d527dab86"], "statement_hash": "3348968e1772f69b37843c78b6190a0dfa50788f92ee1c5992a55373fd833936"}, "url": "/docs/compare/?release=15.11#15.11-ff23c1f288dbecc9", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}]}, {"id": "17.3-64d8331c91e7da7b", "cves": [], "html": "保持 TransactionXmin 与 MyProc->xmin 同步（Heikki Linnakangas）§
此疏忽可能允许进程尝试访问已被清理掉的数据。一个已知的后果是出现临时性的 “could not access status of transaction” 错误。
", "text": "保持 TransactionXmin 与 MyProc->xmin 同步（Heikki Linnakangas）§ 此疏忽可能允许进程尝试访问已被清理掉的数据。一个已知的后果是出现临时性的 “could not access status of transaction” 错误。", "title": "保持 TransactionXmin 与 MyProc->xmin 同步", "commits": ["7cfdb4d1e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "0b808d6a00a8bc3ca48ebf76a3094e02d333a5173262571d9bbf74d69f4e532f", "section_path": ["变更"], "commit_groups": [["41eafbb49", "578a7fe7b", "7cfdb4d1e", "9c1afd344", "9d8ab2c46", "acd5c28db"]], "identity_text": "Keep TransactionXmin in sync with MyProc->xmin (Heikki Linnakangas) This oversight could permit a process to try to access data that had already been vacuumed away. One known consequence is transient could not access status of transaction errors.", "commit_aliases": ["41eafbb49", "578a7fe7b", "7cfdb4d1e", "9c1afd344", "9d8ab2c46", "acd5c28db"], "source_commits": ["7cfdb4d1e"], "source_entry_id": "17.3/changes/007", "db_id": "f41d1eff08bdff771230aeb8e3ed62d7", "patch_ids": ["bc04e75a3557ff0fba978b0ee94d9217"], "statement_hash": "e1ee6f02ac8b75a16565bcc611feee1f00fac45626cbddd73089d3e79e6aa533", "relations": [{"rule": 2, "type": "equivalent", "target": "0f7d09315a70377991e6a72997b3ba55", "evidence": {"same_day": true, "patch_ids": ["bc04e75a3557ff0fba978b0ee94d9217"], "statement_hash": "e1ee6f02ac8b75a16565bcc611feee1f00fac45626cbddd73089d3e79e6aa533"}}, {"rule": 2, "type": "equivalent", "target": "95bc5c6b6c30d84fe3e9651574bf0744", "evidence": {"same_day": true, "patch_ids": ["bc04e75a3557ff0fba978b0ee94d9217"], "statement_hash": "e1ee6f02ac8b75a16565bcc611feee1f00fac45626cbddd73089d3e79e6aa533"}}, {"rule": 2, "type": "equivalent", "target": "b17ef1f417debb4410a01a0a5a78dc49", "evidence": {"same_day": true, "patch_ids": ["bc04e75a3557ff0fba978b0ee94d9217"], "statement_hash": "e1ee6f02ac8b75a16565bcc611feee1f00fac45626cbddd73089d3e79e6aa533"}}, {"rule": 2, "type": "equivalent", "target": "c65490f6c757feec0acb4cae39b05bd5", "evidence": {"same_day": true, "patch_ids": ["bc04e75a3557ff0fba978b0ee94d9217"], "statement_hash": "e1ee6f02ac8b75a16565bcc611feee1f00fac45626cbddd73089d3e79e6aa533"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "c65490f6c757feec0acb4cae39b05bd5", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "保持 TransactionXmin 与 MyProc->xmin 同步", "evidence": {"same_day": true, "patch_ids": ["bc04e75a3557ff0fba978b0ee94d9217"], "statement_hash": "e1ee6f02ac8b75a16565bcc611feee1f00fac45626cbddd73089d3e79e6aa533"}, "url": "/docs/compare/?release=16.7#16.7-ab66fa2b5cecb35b", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "b17ef1f417debb4410a01a0a5a78dc49", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "保持 TransactionXmin 与 MyProc->xmin 同步", "evidence": {"same_day": true, "patch_ids": ["bc04e75a3557ff0fba978b0ee94d9217"], "statement_hash": "e1ee6f02ac8b75a16565bcc611feee1f00fac45626cbddd73089d3e79e6aa533"}, "url": "/docs/compare/?release=15.11#15.11-10d6ee2ef80e51a0", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "0f7d09315a70377991e6a72997b3ba55", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "保持 TransactionXmin 与 MyProc->xmin 同步", "evidence": {"same_day": true, "patch_ids": ["bc04e75a3557ff0fba978b0ee94d9217"], "statement_hash": "e1ee6f02ac8b75a16565bcc611feee1f00fac45626cbddd73089d3e79e6aa533"}, "url": "/docs/compare/?release=14.16#14.16-354f959d2328db47", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "95bc5c6b6c30d84fe3e9651574bf0744", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "保持 TransactionXmin 与 MyProc->xmin 同步", "evidence": {"same_day": true, "patch_ids": ["bc04e75a3557ff0fba978b0ee94d9217"], "statement_hash": "e1ee6f02ac8b75a16565bcc611feee1f00fac45626cbddd73089d3e79e6aa533"}, "url": "/docs/compare/?release=13.19#13.19-2a0429c69913222c", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-d49aa538a89c2e9d", "cves": [], "html": "修复可能导致无法将新插入的目录条目添加到目录缓存列表中的竞态条件（Heikki Linnakangas）§
\n例如，这可能导致在现有会话中无法使用新创建的函数。
", "text": "修复可能导致无法将新插入的目录条目添加到目录缓存列表中的竞态条件（Heikki Linnakangas）§ 例如，这可能导致在现有会话中无法使用新创建的函数。", "title": "修复可能导致无法将新插入的目录条目添加到目录缓存列表中的竞态条件", "commits": ["96e61b279"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "662ca51d925c2d31dbec3bb3d9efefc63560e98a991b4dbea3e90e7eb4ac40a5", "section_path": ["变更"], "commit_groups": [["91fc447c2", "96e61b279", "af8cd1639", "ce7c406f0", "f217c4105", "fce17c3a5"]], "identity_text": "Fix race condition that could cause failure to add a newly-inserted catalog entry to a catalog cache list (Heikki Linnakangas) This could result, for example, in failure to use a newly-created function within an existing session.", "commit_aliases": ["91fc447c2", "96e61b279", "af8cd1639", "ce7c406f0", "f217c4105", "fce17c3a5"], "source_commits": ["96e61b279"], "source_entry_id": "17.3/changes/008", "db_id": "f825fa61541437a3b4bb7f8ede4da592", "patch_ids": ["30a0b58db53c2dde7b527eb3351b6729"], "statement_hash": "0787edc695f81f699e49d8b9bb26054790beb156285a90f41a407c4582951c13", "relations": [{"rule": 2, "type": "equivalent", "target": "428eec456d3609f76929a2b038f85e8a", "evidence": {"same_day": true, "patch_ids": ["30a0b58db53c2dde7b527eb3351b6729"], "statement_hash": "0787edc695f81f699e49d8b9bb26054790beb156285a90f41a407c4582951c13"}}, {"rule": 2, "type": "equivalent", "target": "819024b2a3054af412673022665b0b12", "evidence": {"same_day": true, "patch_ids": ["30a0b58db53c2dde7b527eb3351b6729"], "statement_hash": "0787edc695f81f699e49d8b9bb26054790beb156285a90f41a407c4582951c13"}}, {"rule": 2, "type": "equivalent", "target": "ba88944c6494770af7de1c741188a801", "evidence": {"same_day": true, "patch_ids": ["30a0b58db53c2dde7b527eb3351b6729"], "statement_hash": "0787edc695f81f699e49d8b9bb26054790beb156285a90f41a407c4582951c13"}}, {"rule": 2, "type": "equivalent", "target": "cd11a1e538f07e62b6fc668dbd1402ac", "evidence": {"same_day": true, "patch_ids": ["30a0b58db53c2dde7b527eb3351b6729"], "statement_hash": "0787edc695f81f699e49d8b9bb26054790beb156285a90f41a407c4582951c13"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "819024b2a3054af412673022665b0b12", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "修复可能导致无法将新插入的目录条目添加到目录缓存列表中的竞态条件", "evidence": {"same_day": true, "patch_ids": ["30a0b58db53c2dde7b527eb3351b6729"], "statement_hash": "0787edc695f81f699e49d8b9bb26054790beb156285a90f41a407c4582951c13"}, "url": "/docs/compare/?release=16.7#16.7-d3e1ddb3e3b864fa", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "428eec456d3609f76929a2b038f85e8a", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "修复可能导致无法将新插入的目录条目添加到目录缓存列表中的竞态条件", "evidence": {"same_day": true, "patch_ids": ["30a0b58db53c2dde7b527eb3351b6729"], "statement_hash": "0787edc695f81f699e49d8b9bb26054790beb156285a90f41a407c4582951c13"}, "url": "/docs/compare/?release=15.11#15.11-27d7ae34526121f3", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "ba88944c6494770af7de1c741188a801", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "修复可能导致无法将新插入的目录条目添加到目录缓存列表中的竞态条件", "evidence": {"same_day": true, "patch_ids": ["30a0b58db53c2dde7b527eb3351b6729"], "statement_hash": "0787edc695f81f699e49d8b9bb26054790beb156285a90f41a407c4582951c13"}, "url": "/docs/compare/?release=14.16#14.16-e9c0b08aff686af1", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "cd11a1e538f07e62b6fc668dbd1402ac", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "修复可能导致无法将新插入的目录条目添加到目录缓存列表中的竞态条件", "evidence": {"same_day": true, "patch_ids": ["30a0b58db53c2dde7b527eb3351b6729"], "statement_hash": "0787edc695f81f699e49d8b9bb26054790beb156285a90f41a407c4582951c13"}, "url": "/docs/compare/?release=13.19#13.19-feed443fed43a11e", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-f3e54e13e653a3e5", "cves": [], "html": "防止在系统目录被并发更新时进行 vacuum 可能导致的目录损坏（Noah Misch）§ §
", "text": "防止在系统目录被并发更新时进行 vacuum 可能导致的目录损坏（Noah Misch）§ §", "title": "防止在系统目录被并发更新时进行 vacuum 可能导致的目录损坏", "commits": ["1587f7b9f", "f4af4515b"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "e0679c83f4454c77543ac49188ea44d4d53de934da6e0297e106258c46e6e90e", "section_path": ["变更"], "commit_groups": [["1587f7b9f", "81772a495"], ["25e99483c", "8bfd2ceba", "9311fcb86", "d28cd3e7b", "dc02b98bd", "f4af4515b"]], "identity_text": "Prevent possible catalog corruption when a system catalog is vacuumed concurrently with an update (Noah Misch)", "commit_aliases": ["1587f7b9f", "25e99483c", "81772a495", "8bfd2ceba", "9311fcb86", "d28cd3e7b", "dc02b98bd", "f4af4515b"], "source_commits": ["1587f7b9f", "f4af4515b"], "source_entry_id": "17.3/changes/009", "db_id": "53e2d4d1a5f179c948796b4a85c497a0", "patch_ids": ["1da4fd752464ea7b33c418f1ffc2761f", "5a322d332e5b2574706cfef626d68da0"], "statement_hash": "e69a8422a00ac3a14bdfa2cbfda1c75d28c90905a13e9a277cff4a0bc8136382", "relations": [{"rule": 2, "type": "equivalent", "target": "1c538425f3222136473c1bd1f195a41c", "evidence": {"same_day": true, "patch_ids": ["1da4fd752464ea7b33c418f1ffc2761f", "5a322d332e5b2574706cfef626d68da0"], "statement_hash": "e69a8422a00ac3a14bdfa2cbfda1c75d28c90905a13e9a277cff4a0bc8136382"}}, {"rule": 2, "type": "equivalent", "target": "d552bf163f629e4ce3880b1314bf6e2f", "evidence": {"same_day": true, "patch_ids": ["1da4fd752464ea7b33c418f1ffc2761f", "5a322d332e5b2574706cfef626d68da0"], "statement_hash": "e69a8422a00ac3a14bdfa2cbfda1c75d28c90905a13e9a277cff4a0bc8136382"}}, {"rule": 2, "type": "equivalent", "target": "e2fc775ae660cbfe5909a35ba85930cf", "evidence": {"same_day": true, "patch_ids": ["1da4fd752464ea7b33c418f1ffc2761f", "5a322d332e5b2574706cfef626d68da0"], "statement_hash": "e69a8422a00ac3a14bdfa2cbfda1c75d28c90905a13e9a277cff4a0bc8136382"}}, {"rule": 2, "type": "equivalent", "target": "f3712147b2c17e6407c3aaa1c6b905b5", "evidence": {"same_day": true, "patch_ids": ["1da4fd752464ea7b33c418f1ffc2761f", "5a322d332e5b2574706cfef626d68da0"], "statement_hash": "e69a8422a00ac3a14bdfa2cbfda1c75d28c90905a13e9a277cff4a0bc8136382"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "1c538425f3222136473c1bd1f195a41c", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "防止在系统目录被并发更新时进行 vacuum 可能导致的目录损坏", "evidence": {"same_day": true, "patch_ids": ["1da4fd752464ea7b33c418f1ffc2761f", "5a322d332e5b2574706cfef626d68da0"], "statement_hash": "e69a8422a00ac3a14bdfa2cbfda1c75d28c90905a13e9a277cff4a0bc8136382"}, "url": "/docs/compare/?release=16.7#16.7-a055f3b905c546b3", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "f3712147b2c17e6407c3aaa1c6b905b5", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "防止在系统目录被并发更新时进行 vacuum 可能导致的目录损坏", "evidence": {"same_day": true, "patch_ids": ["1da4fd752464ea7b33c418f1ffc2761f", "5a322d332e5b2574706cfef626d68da0"], "statement_hash": "e69a8422a00ac3a14bdfa2cbfda1c75d28c90905a13e9a277cff4a0bc8136382"}, "url": "/docs/compare/?release=15.11#15.11-a1d8fcc306540815", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "e2fc775ae660cbfe5909a35ba85930cf", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "防止在系统目录被并发更新时进行 vacuum 可能导致的目录损坏", "evidence": {"same_day": true, "patch_ids": ["1da4fd752464ea7b33c418f1ffc2761f", "5a322d332e5b2574706cfef626d68da0"], "statement_hash": "e69a8422a00ac3a14bdfa2cbfda1c75d28c90905a13e9a277cff4a0bc8136382"}, "url": "/docs/compare/?release=14.16#14.16-9f57888fe6641937", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "d552bf163f629e4ce3880b1314bf6e2f", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "防止在系统目录被并发更新时进行 vacuum 可能导致的目录损坏", "evidence": {"same_day": true, "patch_ids": ["1da4fd752464ea7b33c418f1ffc2761f", "5a322d332e5b2574706cfef626d68da0"], "statement_hash": "e69a8422a00ac3a14bdfa2cbfda1c75d28c90905a13e9a277cff4a0bc8136382"}, "url": "/docs/compare/?release=13.19#13.19-cb91e58d180e62e3", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-1628e1c1870a7451", "cves": [], "html": "修复关系截断失败时的数据损坏问题（Thomas Munro）§ § §
\n执行关系截断所需的文件系统调用可能会失败，导致磁盘上留下不一致的状态（例如，实际上恢复了已删除的数据）。我们无法真正阻止这种情况，但可以通过将此类失败提升为 PANIC 来进行恢复，这样可以通过从 WAL 重放到尝试截断之前来恢复一致性。这并不是一个非常理想的行为，但由于此类失败足够罕见，因此似乎是一个可以接受的解决方案。
", "text": "修复关系截断失败时的数据损坏问题（Thomas Munro）§ § § 执行关系截断所需的文件系统调用可能会失败，导致磁盘上留下不一致的状态（例如，实际上恢复了已删除的数据）。我们无法真正阻止这种情况，但可以通过将此类失败提升为 PANIC 来进行恢复，这样可以通过从 WAL 重放到尝试截断之前来恢复一致性。这并不是一个非常理想的行为，但由于此类失败足够罕见，因此似乎是一个可以接受的解决方案。", "title": "修复关系截断失败时的数据损坏问题", "commits": ["0350b876b", "45aef9f6b", "66aaabe7a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "093e4b0bd9aaf2e7ac4a3270f2d7dbdb836bd7b11d0dc678aa8f92d596edece1", "section_path": ["变更"], "commit_groups": [["0350b876b", "228091216", "23c743b64", "38c579b08", "ba02d24ba", "fb540b6aa"], ["049c8cb9a", "190054e61", "417d41c65", "45aef9f6b", "9defaaa1d"], ["3181befdc", "66aaabe7a", "a1d17a894", "c957d7444", "f154f028d"]], "identity_text": "Fix data corruption when relation truncation fails (Thomas Munro) The filesystem calls needed to perform relation truncation could fail, leaving inconsistent state on disk (for example, effectively reviving deleted data). We can't really prevent that, but we can recover by dint of making such failures into PANICs, so that consistency is restored by replaying from WAL up to just before the attempted truncation. This isn't a hugely desirable behavior, but such failures are rare enough that it seems an acceptable solution.", "commit_aliases": ["0350b876b", "049c8cb9a", "190054e61", "228091216", "23c743b64", "3181befdc", "38c579b08", "417d41c65", "45aef9f6b", "66aaabe7a", "9defaaa1d", "a1d17a894", "ba02d24ba", "c957d7444", "f154f028d", "fb540b6aa"], "source_commits": ["0350b876b", "45aef9f6b", "66aaabe7a"], "source_entry_id": "17.3/changes/010", "db_id": "c876272e00edeea60adb978f3ab1e194", "patch_ids": ["13b727a8d3d7e0cd9bc0c3b68e1e7642", "22bba484f561f9abb1172fd40d38d02e", "ed7a32160204c88287960b3de8181d7c"], "statement_hash": "e288a5da590e21c8e69da460b1fc2e484df1e640552bad1d8e596c1194c10a90", "relations": [{"rule": 2, "type": "equivalent", "target": "29a3dd579cd7acb075f4eb7f34cadf6d", "evidence": {"same_day": true, "patch_ids": ["13b727a8d3d7e0cd9bc0c3b68e1e7642", "22bba484f561f9abb1172fd40d38d02e", "ed7a32160204c88287960b3de8181d7c"], "statement_hash": "e288a5da590e21c8e69da460b1fc2e484df1e640552bad1d8e596c1194c10a90"}}, {"rule": 2, "type": "equivalent", "target": "6e2d54cee98be477c06d5503209286d2", "evidence": {"same_day": true, "patch_ids": ["13b727a8d3d7e0cd9bc0c3b68e1e7642", "22bba484f561f9abb1172fd40d38d02e", "ed7a32160204c88287960b3de8181d7c"], "statement_hash": "e288a5da590e21c8e69da460b1fc2e484df1e640552bad1d8e596c1194c10a90"}}, {"rule": 2, "type": "equivalent", "target": "a705757c88e8dc114469492bca11380e", "evidence": {"same_day": true, "patch_ids": ["13b727a8d3d7e0cd9bc0c3b68e1e7642", "22bba484f561f9abb1172fd40d38d02e", "ed7a32160204c88287960b3de8181d7c"], "statement_hash": "e288a5da590e21c8e69da460b1fc2e484df1e640552bad1d8e596c1194c10a90"}}, {"rule": 2, "type": "equivalent", "target": "affd693034e908911e8335280c40337c", "evidence": {"same_day": true, "patch_ids": ["13b727a8d3d7e0cd9bc0c3b68e1e7642", "22bba484f561f9abb1172fd40d38d02e", "ed7a32160204c88287960b3de8181d7c"], "statement_hash": "e288a5da590e21c8e69da460b1fc2e484df1e640552bad1d8e596c1194c10a90"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "a705757c88e8dc114469492bca11380e", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "修复关系截断失败时的数据损坏问题", "evidence": {"same_day": true, "patch_ids": ["13b727a8d3d7e0cd9bc0c3b68e1e7642", "22bba484f561f9abb1172fd40d38d02e", "ed7a32160204c88287960b3de8181d7c"], "statement_hash": "e288a5da590e21c8e69da460b1fc2e484df1e640552bad1d8e596c1194c10a90"}, "url": "/docs/compare/?release=16.7#16.7-adc6f7d2ce7990fa", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "6e2d54cee98be477c06d5503209286d2", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "修复关系截断失败时的数据损坏问题", "evidence": {"same_day": true, "patch_ids": ["13b727a8d3d7e0cd9bc0c3b68e1e7642", "22bba484f561f9abb1172fd40d38d02e", "ed7a32160204c88287960b3de8181d7c"], "statement_hash": "e288a5da590e21c8e69da460b1fc2e484df1e640552bad1d8e596c1194c10a90"}, "url": "/docs/compare/?release=15.11#15.11-bfc0aa4fc8a74702", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "29a3dd579cd7acb075f4eb7f34cadf6d", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "修复关系截断失败时的数据损坏问题", "evidence": {"same_day": true, "patch_ids": ["13b727a8d3d7e0cd9bc0c3b68e1e7642", "22bba484f561f9abb1172fd40d38d02e", "ed7a32160204c88287960b3de8181d7c"], "statement_hash": "e288a5da590e21c8e69da460b1fc2e484df1e640552bad1d8e596c1194c10a90"}, "url": "/docs/compare/?release=14.16#14.16-80a213144aae7b2c", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "affd693034e908911e8335280c40337c", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "修复关系截断失败时的数据损坏问题", "evidence": {"same_day": true, "patch_ids": ["13b727a8d3d7e0cd9bc0c3b68e1e7642", "22bba484f561f9abb1172fd40d38d02e", "ed7a32160204c88287960b3de8181d7c"], "statement_hash": "e288a5da590e21c8e69da460b1fc2e484df1e640552bad1d8e596c1194c10a90"}, "url": "/docs/compare/?release=13.19#13.19-122ddb0a90db2f62", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-39227326b9aa5e8e", "cves": [], "html": "防止在关系截断期间启动检查点（Robert Haas）§
\n这避免了一种竞态条件，即修改后的文件可能在完成检查点之前未被 fsync，从而在操作系统崩溃后不久产生数据损坏的风险。
", "text": "防止在关系截断期间启动检查点（Robert Haas）§ 这避免了一种竞态条件，即修改后的文件可能在完成检查点之前未被 fsync，从而在操作系统崩溃后不久产生数据损坏的风险。", "title": "防止在关系截断期间启动检查点", "commits": ["d4ffbf47b"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "3f6c02553679a5f3646c52a5348ca34a871d6622075f66d4ae764c5eaae004cc", "section_path": ["变更"], "commit_groups": [["1168acbca", "75818b3af", "7d0b91a28", "a501fe5a9", "ad5aa7bfd", "d4ffbf47b"]], "identity_text": "Prevent checkpoints from starting during relation truncation (Robert Haas) This avoids a race condition wherein the modified file might not get fsync'd before completing the checkpoint, creating a risk of data corruption if the operating system crashes soon after.", "commit_aliases": ["1168acbca", "75818b3af", "7d0b91a28", "a501fe5a9", "ad5aa7bfd", "d4ffbf47b"], "source_commits": ["d4ffbf47b"], "source_entry_id": "17.3/changes/011", "db_id": "a574173fa6e03fae58fa4d27b0e1c766", "patch_ids": ["c12b962bcfc7f1116a0a1e82ac97d466"], "statement_hash": "5a7f80ce273dd03c64be48fd9f34bac3e72ea14b376b7fd414f3f61971e9c70d", "relations": [{"rule": 2, "type": "equivalent", "target": "470f2470a3f35434fb1d59ff2b3944f7", "evidence": {"same_day": true, "patch_ids": ["c12b962bcfc7f1116a0a1e82ac97d466"], "statement_hash": "5a7f80ce273dd03c64be48fd9f34bac3e72ea14b376b7fd414f3f61971e9c70d"}}, {"rule": 2, "type": "equivalent", "target": "48e63346cf5f2bd983ad4aa906ad04c3", "evidence": {"same_day": true, "patch_ids": ["c12b962bcfc7f1116a0a1e82ac97d466"], "statement_hash": "5a7f80ce273dd03c64be48fd9f34bac3e72ea14b376b7fd414f3f61971e9c70d"}}, {"rule": 2, "type": "equivalent", "target": "563d9f0f77b3eee26c49723296ec9b79", "evidence": {"same_day": true, "patch_ids": ["c12b962bcfc7f1116a0a1e82ac97d466"], "statement_hash": "5a7f80ce273dd03c64be48fd9f34bac3e72ea14b376b7fd414f3f61971e9c70d"}}, {"rule": 2, "type": "equivalent", "target": "b014a39e8931c48ade8177ec91e5da8e", "evidence": {"same_day": true, "patch_ids": ["c12b962bcfc7f1116a0a1e82ac97d466"], "statement_hash": "5a7f80ce273dd03c64be48fd9f34bac3e72ea14b376b7fd414f3f61971e9c70d"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "48e63346cf5f2bd983ad4aa906ad04c3", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "防止在关系截断期间启动检查点", "evidence": {"same_day": true, "patch_ids": ["c12b962bcfc7f1116a0a1e82ac97d466"], "statement_hash": "5a7f80ce273dd03c64be48fd9f34bac3e72ea14b376b7fd414f3f61971e9c70d"}, "url": "/docs/compare/?release=16.7#16.7-d552b4e09791f05c", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "470f2470a3f35434fb1d59ff2b3944f7", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "防止在关系截断期间启动检查点", "evidence": {"same_day": true, "patch_ids": ["c12b962bcfc7f1116a0a1e82ac97d466"], "statement_hash": "5a7f80ce273dd03c64be48fd9f34bac3e72ea14b376b7fd414f3f61971e9c70d"}, "url": "/docs/compare/?release=15.11#15.11-be8211ced912411c", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "563d9f0f77b3eee26c49723296ec9b79", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "防止在关系截断期间启动检查点", "evidence": {"same_day": true, "patch_ids": ["c12b962bcfc7f1116a0a1e82ac97d466"], "statement_hash": "5a7f80ce273dd03c64be48fd9f34bac3e72ea14b376b7fd414f3f61971e9c70d"}, "url": "/docs/compare/?release=14.16#14.16-c9b2392b6b20c044", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "b014a39e8931c48ade8177ec91e5da8e", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "防止在关系截断期间启动检查点", "evidence": {"same_day": true, "patch_ids": ["c12b962bcfc7f1116a0a1e82ac97d466"], "statement_hash": "5a7f80ce273dd03c64be48fd9f34bac3e72ea14b376b7fd414f3f61971e9c70d"}, "url": "/docs/compare/?release=13.19#13.19-e9956e400bc3e5e5", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-8b723e176b0f446c", "cves": [], "html": "避免在 VACUUM 与更改该数据库所有者的 REASSIGN OWNED 并发运行时可能丢失 pg_database.datfrozenxid 更新（Kirill Reshke）§
修复传递给 AFTER UPDATE 触发器的不正确 tg_updatedcols 值（Tom Lane）§
在某些情况下，tg_updatedcols 位图可能描述的是同一事务中较早命令更新的列集合，从而导致触发器做出错误的操作。
同时，防止由于制作过多 tg_updatedcols 位图副本而导致的内存膨胀。
修复具有自己引用分区表的外键约束的分区的分离操作（Amul Sul）§
\n通常情况下，外键定义在分区表的顶层；但如果外键定义在分区上并引用分区表，且该引用分区被分离，则相关的 pg_constraint 条目会被错误更新。这导致类似 “could not find ON INSERT check triggers of foreign key constraint” 的错误。
修复 pg_get_constraintdef 对域上的 NOT NULL 约束的支持（Álvaro Herrera）§
修复 to_timestamp 的 FF 格式代码的错误处理（Tom Lane）§n
紧接在 FF 之前的整数格式代码会消耗所有可用数字，导致 nFF 没有剩余数字可用。n
在反解析 SQL/JSON 查询函数中的 PASSING 子句时，确保在必要时对变量名加双引号（Dean Rasheed）§
在反解析 XMLTABLE() 表达式时，确保必要时对 XML 命名空间名称进行双引号引用（Dean Rasheed）§
在 pg_hba_file_rules() 输出中包含 ldapscheme 选项（Laurenz Albe）§ §
修复在输入列数据类型并不完全匹配时，对预排序 UNION 操作的规划（David Rowley）§
这个错误可能导致使用错误的排序操作符对数据排序，后果从没有明显问题到 core dump 都有可能。
", "text": "修复在输入列数据类型并不完全匹配时，对预排序 UNION 操作的规划（David Rowley）§ 这个错误可能导致使用错误的排序操作符对数据排序，后果从没有明显问题到 core dump 都有可能。", "title": "修复在输入列数据类型并不完全匹配时，对预排序 UNION 操作的规划", "commits": ["5db9367e5"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "4c0fa1c7b9d6df170f277a1c62eea447879847ee1e64adc7e54a86b7ab814672", "section_path": ["变更"], "commit_groups": [["231006451", "5db9367e5"]], "identity_text": "Fix planning of pre-sorted UNION operations for cases where the input column datatypes don't all match (David Rowley) This error could lead to sorting data with the wrong sort operator, with consequences ranging from no visible problem to core dumps.", "commit_aliases": ["231006451", "5db9367e5"], "source_commits": ["5db9367e5"], "source_entry_id": "17.3/changes/020", "db_id": "8a5b905645a09bdf8df8d30e0bf5ab9a", "patch_ids": ["39d0353486637aa5cf432e950d3cab85"], "statement_hash": "7518e261dc8a359ad3fb77473d13b675706f1c33ac3641455213b2d696d53732", "relations": [], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.3-755f2cde6c6720cf", "cves": [], "html": "当列排序规则不一致时不合并 UNION 操作（Tom Lane）§
之前在判断是否可以安全地将 UNION 步骤合并为单个 N 路 UNION 操作时忽略了排序规则。在引入非确定性排序规则之前这可能是合理的，但现在不再如此，因为使用中的排序规则可以影响唯一性的定义。
防止在将位于外连接下方的子查询上拉后出现 “wrong varnullingrels” 规划器错误（Tom Lane）§ §
", "text": "防止在将位于外连接下方的子查询上拉后出现 “wrong varnullingrels” 规划器错误（Tom Lane）§ §", "title": "防止在将位于外连接下方的子查询上拉后出现 “wrong varnullingrels” 规划器错误", "commits": ["72822a99d", "78883cd90"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "b7021901c6f06bdedffb57fac74f58843b40055f27086cb312a516b83b54d03a", "section_path": ["变更"], "commit_groups": [["5c9d8636d", "72822a99d", "85990e2fd"], ["78883cd90", "7b456f040", "e032e4c7d"]], "identity_text": "Prevent wrong varnullingrels planner errors after pulling up a subquery that's underneath an outer join (Tom Lane)", "commit_aliases": ["5c9d8636d", "72822a99d", "78883cd90", "7b456f040", "85990e2fd", "e032e4c7d"], "source_commits": ["72822a99d", "78883cd90"], "source_entry_id": "17.3/changes/022", "db_id": "35d6fcb358c16df19f7c8d219cc311a2", "patch_ids": ["8779e21e34c76266f909cace4bf46334", "cca7c628610742166bcfeb586b971a8d"], "statement_hash": "e51cd2872d798cf56d5fea424d6e175ef48b4df7592c4a95a1c52e7ec692aaf5", "relations": [{"rule": 2, "type": "equivalent", "target": "15e3faca0d01e2124183a4fe2a717da7", "evidence": {"same_day": true, "patch_ids": ["8779e21e34c76266f909cace4bf46334", "cca7c628610742166bcfeb586b971a8d"], "statement_hash": "e51cd2872d798cf56d5fea424d6e175ef48b4df7592c4a95a1c52e7ec692aaf5"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "15e3faca0d01e2124183a4fe2a717da7", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "防止在将位于外连接下方的子查询上拉后出现 “wrong varnullingrels” 规划器错误", "evidence": {"same_day": true, "patch_ids": ["8779e21e34c76266f909cace4bf46334", "cca7c628610742166bcfeb586b971a8d"], "statement_hash": "e51cd2872d798cf56d5fea424d6e175ef48b4df7592c4a95a1c52e7ec692aaf5"}, "url": "/docs/compare/?release=16.7#16.7-2973a8b31584eb94", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}]}, {"id": "17.3-2052529fad628663", "cves": [], "html": "在查找统计信息时忽略 nulling-relation 标记位（Richard Guo）§
\n此疏忽可能导致未能使用关于表达式的相关统计信息，或出现 “corrupt MVNDistinct entry” 错误。
", "text": "在查找统计信息时忽略 nulling-relation 标记位（Richard Guo）§ 此疏忽可能导致未能使用关于表达式的相关统计信息，或出现 “corrupt MVNDistinct entry” 错误。", "title": "在查找统计信息时忽略 nulling-relation 标记位", "commits": ["297b280ab"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "51d6beafd80449489ed2b3975a5cd837086d8438ac4a09c2364b00b8e51df74b", "section_path": ["变更"], "commit_groups": [["297b280ab", "a1a9120c7", "e28033fe1"]], "identity_text": "Ignore nulling-relation marker bits when looking up statistics (Richard Guo) This oversight could lead to failure to use relevant statistics about expressions, or to corrupt MVNDistinct entry errors.", "commit_aliases": ["297b280ab", "a1a9120c7", "e28033fe1"], "source_commits": ["297b280ab"], "source_entry_id": "17.3/changes/023", "db_id": "4a7b2af0753b35ec155e5155ce304110", "patch_ids": ["101d91c908f087d8a718ce1891305aaf"], "statement_hash": "6aeaa1d32c6cf0a1044a748ef2ee197c84c9ce13bc46ff0b73d099c2527f2951", "relations": [{"rule": 2, "type": "equivalent", "target": "256cc3b4dcc5eaf921a1d651a2c67e80", "evidence": {"same_day": true, "patch_ids": ["101d91c908f087d8a718ce1891305aaf"], "statement_hash": "6aeaa1d32c6cf0a1044a748ef2ee197c84c9ce13bc46ff0b73d099c2527f2951"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "256cc3b4dcc5eaf921a1d651a2c67e80", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "在查找统计信息时忽略 nulling-relation 标记位", "evidence": {"same_day": true, "patch_ids": ["101d91c908f087d8a718ce1891305aaf"], "statement_hash": "6aeaa1d32c6cf0a1044a748ef2ee197c84c9ce13bc46ff0b73d099c2527f2951"}, "url": "/docs/compare/?release=16.7#16.7-686d9c5e0e07b261", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}]}, {"id": "17.3-13c2873d21939448", "cves": [], "html": "修复分区剪枝步骤中遗漏的表达式处理（Tom Lane）§
\n此疏忽可能导致在访问分区表的查询中出现 “unrecognized node type” 错误以及其他可能的问题。
", "text": "修复分区剪枝步骤中遗漏的表达式处理（Tom Lane）§ 此疏忽可能导致在访问分区表的查询中出现 “unrecognized node type” 错误以及其他可能的问题。", "title": "修复分区剪枝步骤中遗漏的表达式处理", "commits": ["0671a71e0"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "b1e70c8965fb45c0ec3a66a77ba906db8ec212a8dfd6b29112db0977e2024d2e", "section_path": ["变更"], "commit_groups": [["0671a71e0", "45004f527", "5f725648f", "724ebebb1", "94c02bd33", "bf826ea06"]], "identity_text": "Fix missed expression processing for partition pruning steps (Tom Lane) This oversight could lead to unrecognized node type errors, and perhaps other problems, in queries accessing partitioned tables.", "commit_aliases": ["0671a71e0", "45004f527", "5f725648f", "724ebebb1", "94c02bd33", "bf826ea06"], "source_commits": ["0671a71e0"], "source_entry_id": "17.3/changes/024", "db_id": "54bec316da2ce059adbac0a0dbc8e9b6", "patch_ids": ["5551cc7fd0dd9d66c578783ac84f1896"], "statement_hash": "a179f258a05f2c3cfdf6806107736461e71d0130f204ff5a764c84b4d924406b", "relations": [{"rule": 2, "type": "equivalent", "target": "64aaf6067e2f499a849b519969ab7e4b", "evidence": {"same_day": true, "patch_ids": ["5551cc7fd0dd9d66c578783ac84f1896"], "statement_hash": "a179f258a05f2c3cfdf6806107736461e71d0130f204ff5a764c84b4d924406b"}}, {"rule": 2, "type": "equivalent", "target": "92378b1193935bbe98423ded57c0f7a0", "evidence": {"same_day": true, "patch_ids": ["5551cc7fd0dd9d66c578783ac84f1896"], "statement_hash": "a179f258a05f2c3cfdf6806107736461e71d0130f204ff5a764c84b4d924406b"}}, {"rule": 2, "type": "equivalent", "target": "d03371888cc7150b3deafc4ad1b65c61", "evidence": {"same_day": true, "patch_ids": ["5551cc7fd0dd9d66c578783ac84f1896"], "statement_hash": "a179f258a05f2c3cfdf6806107736461e71d0130f204ff5a764c84b4d924406b"}}, {"rule": 2, "type": "equivalent", "target": "f57a46c5163b3e5919b130be79f25ce5", "evidence": {"same_day": true, "patch_ids": ["5551cc7fd0dd9d66c578783ac84f1896"], "statement_hash": "a179f258a05f2c3cfdf6806107736461e71d0130f204ff5a764c84b4d924406b"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "92378b1193935bbe98423ded57c0f7a0", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "修复分区剪枝步骤中遗漏的表达式处理", "evidence": {"same_day": true, "patch_ids": ["5551cc7fd0dd9d66c578783ac84f1896"], "statement_hash": "a179f258a05f2c3cfdf6806107736461e71d0130f204ff5a764c84b4d924406b"}, "url": "/docs/compare/?release=16.7#16.7-7e432f19a9f91448", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "f57a46c5163b3e5919b130be79f25ce5", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "修复分区剪枝步骤中遗漏的表达式处理", "evidence": {"same_day": true, "patch_ids": ["5551cc7fd0dd9d66c578783ac84f1896"], "statement_hash": "a179f258a05f2c3cfdf6806107736461e71d0130f204ff5a764c84b4d924406b"}, "url": "/docs/compare/?release=15.11#15.11-126d9ceb0a19d1f7", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "d03371888cc7150b3deafc4ad1b65c61", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "修复分区剪枝步骤中遗漏的表达式处理", "evidence": {"same_day": true, "patch_ids": ["5551cc7fd0dd9d66c578783ac84f1896"], "statement_hash": "a179f258a05f2c3cfdf6806107736461e71d0130f204ff5a764c84b4d924406b"}, "url": "/docs/compare/?release=14.16#14.16-e76cb5deecce3a19", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "64aaf6067e2f499a849b519969ab7e4b", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "修复分区剪枝步骤中遗漏的表达式处理", "evidence": {"same_day": true, "patch_ids": ["5551cc7fd0dd9d66c578783ac84f1896"], "statement_hash": "a179f258a05f2c3cfdf6806107736461e71d0130f204ff5a764c84b4d924406b"}, "url": "/docs/compare/?release=13.19#13.19-bb60e571dcd1116e", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-7c4722ae3aba8c2f", "cves": [], "html": "为 slotsync 工作进程提供独立的进程槽位（Tom Lane、Hou Zhijie）§
\n在加入 slotsync 工作进程时忽略了这一点，结果它的进程槽位实际上是从供常规后端进程使用的池中占用的。如果常规后端进程数量逼近 max_connections，这可能导致该工作进程无法启动，或使后续本应按配置成功的连接请求失败。
允许 dshash 表增长超过 1GB（Matthias van de Meent）§
\n这避免了诸如 “invalid DSA memory alloc request size” 之类的错误。例如，在处理数百万个表的事务中可能会出现这种情况。
", "text": "允许 dshash 表增长超过 1GB（Matthias van de Meent）§ 这避免了诸如 “invalid DSA memory alloc request size” 之类的错误。例如，在处理数百万个表的事务中可能会出现这种情况。", "title": "允许 dshash 表增长超过 1GB", "commits": ["18452b70a"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "2f6a08495b4a911652bcf7129394e8650e488370a5acec8ea19ec4db7568c105", "section_path": ["变更"], "commit_groups": [["18452b70a", "2a7402322", "84dc1303c", "84f1b0b03", "853cef097", "9f7b7d516"]], "identity_text": "Allow dshash tables to grow past 1GB (Matthias van de Meent) This avoids errors like invalid DSA memory alloc request size. The case can occur for example in transactions that process several million tables.", "commit_aliases": ["18452b70a", "2a7402322", "84dc1303c", "84f1b0b03", "853cef097", "9f7b7d516"], "source_commits": ["18452b70a"], "source_entry_id": "17.3/changes/026", "db_id": "6356be9dc3a4ccb3d25583a601b052d7", "patch_ids": ["4a1c75d9a6546bdd5d261ba5d3a227c1"], "statement_hash": "faf10a7922a2f18a9774d93e321afa5a0c92f8c3c8987552c55415bd13c387e8", "relations": [{"rule": 2, "type": "equivalent", "target": "559be1008e5dc3b8471a163d74e0e555", "evidence": {"same_day": true, "patch_ids": ["4a1c75d9a6546bdd5d261ba5d3a227c1"], "statement_hash": "faf10a7922a2f18a9774d93e321afa5a0c92f8c3c8987552c55415bd13c387e8"}}, {"rule": 2, "type": "equivalent", "target": "c1707a3dbd154a011972a406a0fe3177", "evidence": {"same_day": true, "patch_ids": ["4a1c75d9a6546bdd5d261ba5d3a227c1"], "statement_hash": "faf10a7922a2f18a9774d93e321afa5a0c92f8c3c8987552c55415bd13c387e8"}}, {"rule": 2, "type": "equivalent", "target": "c32bee4d5d51b2dfdb45db1d2db22cb1", "evidence": {"same_day": true, "patch_ids": ["4a1c75d9a6546bdd5d261ba5d3a227c1"], "statement_hash": "faf10a7922a2f18a9774d93e321afa5a0c92f8c3c8987552c55415bd13c387e8"}}, {"rule": 2, "type": "equivalent", "target": "c51c9c918546c72f7a773592db3d7108", "evidence": {"same_day": true, "patch_ids": ["4a1c75d9a6546bdd5d261ba5d3a227c1"], "statement_hash": "faf10a7922a2f18a9774d93e321afa5a0c92f8c3c8987552c55415bd13c387e8"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "c1707a3dbd154a011972a406a0fe3177", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "允许 dshash 表增长超过 1GB", "evidence": {"same_day": true, "patch_ids": ["4a1c75d9a6546bdd5d261ba5d3a227c1"], "statement_hash": "faf10a7922a2f18a9774d93e321afa5a0c92f8c3c8987552c55415bd13c387e8"}, "url": "/docs/compare/?release=16.7#16.7-0c925e1e9ecd0922", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "c32bee4d5d51b2dfdb45db1d2db22cb1", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "允许 dshash 表增长超过 1GB", "evidence": {"same_day": true, "patch_ids": ["4a1c75d9a6546bdd5d261ba5d3a227c1"], "statement_hash": "faf10a7922a2f18a9774d93e321afa5a0c92f8c3c8987552c55415bd13c387e8"}, "url": "/docs/compare/?release=15.11#15.11-bd0deef2a9ca340c", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "559be1008e5dc3b8471a163d74e0e555", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "允许 dshash 表增长超过 1GB", "evidence": {"same_day": true, "patch_ids": ["4a1c75d9a6546bdd5d261ba5d3a227c1"], "statement_hash": "faf10a7922a2f18a9774d93e321afa5a0c92f8c3c8987552c55415bd13c387e8"}, "url": "/docs/compare/?release=14.16#14.16-d37432d80add9128", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "c51c9c918546c72f7a773592db3d7108", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "允许 dshash 表增长超过 1GB", "evidence": {"same_day": true, "patch_ids": ["4a1c75d9a6546bdd5d261ba5d3a227c1"], "statement_hash": "faf10a7922a2f18a9774d93e321afa5a0c92f8c3c8987552c55415bd13c387e8"}, "url": "/docs/compare/?release=13.19#13.19-6c810fa8b81fd565", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-a04d6e576513146f", "cves": [], "html": "避免 bringetbitmap() 中可能的整数溢出（James Hunter，Evgeniy Gorbanyov）§
由于结果仅用于统计目的，此错误的影响大多是修饰性的。
", "text": "避免 bringetbitmap() 中可能的整数溢出（James Hunter，Evgeniy Gorbanyov）§ 由于结果仅用于统计目的，此错误的影响大多是修饰性的。", "title": "避免 bringetbitmap() 中可能的整数溢出", "commits": ["e027ee990"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "db1e247a656bf848d0c8903fb2b67adb5c3c1a36ad4331b143343f6dd458430d", "section_path": ["变更"], "commit_groups": [["332023e2d", "720e52984", "9e9f30139", "bfda7d8dd", "e027ee990", "e35ff6520"]], "identity_text": "Avoid possible integer overflow in bringetbitmap() (James Hunter, Evgeniy Gorbanyov) Since the result is only used for statistical purposes, the effects of this error were mostly cosmetic.", "commit_aliases": ["332023e2d", "720e52984", "9e9f30139", "bfda7d8dd", "e027ee990", "e35ff6520"], "source_commits": ["e027ee990"], "source_entry_id": "17.3/changes/027", "db_id": "3382e0a80f8ca0563eb8cac40f2d851b", "patch_ids": ["43a263cfc4076d37afa82ad82a07bdb5"], "statement_hash": "0df21d34231d373da53a6bee55e2b328ac8048d21323da7f65a482bc0db673ec", "relations": [{"rule": 2, "type": "equivalent", "target": "1fe83d7e0b7aa17a1f0f729b4a0c12f0", "evidence": {"same_day": true, "patch_ids": ["43a263cfc4076d37afa82ad82a07bdb5"], "statement_hash": "0df21d34231d373da53a6bee55e2b328ac8048d21323da7f65a482bc0db673ec"}}, {"rule": 2, "type": "equivalent", "target": "3c029255e641bec15f2ee6842ff93a77", "evidence": {"same_day": true, "patch_ids": ["43a263cfc4076d37afa82ad82a07bdb5"], "statement_hash": "0df21d34231d373da53a6bee55e2b328ac8048d21323da7f65a482bc0db673ec"}}, {"rule": 2, "type": "equivalent", "target": "4c0001cec4b021e935b71b3a37aa73fe", "evidence": {"same_day": true, "patch_ids": ["43a263cfc4076d37afa82ad82a07bdb5"], "statement_hash": "0df21d34231d373da53a6bee55e2b328ac8048d21323da7f65a482bc0db673ec"}}, {"rule": 2, "type": "equivalent", "target": "921aaf580d2aca9ce93450c0492e7423", "evidence": {"same_day": true, "patch_ids": ["43a263cfc4076d37afa82ad82a07bdb5"], "statement_hash": "0df21d34231d373da53a6bee55e2b328ac8048d21323da7f65a482bc0db673ec"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "921aaf580d2aca9ce93450c0492e7423", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "避免 bringetbitmap() 中可能的整数溢出", "evidence": {"same_day": true, "patch_ids": ["43a263cfc4076d37afa82ad82a07bdb5"], "statement_hash": "0df21d34231d373da53a6bee55e2b328ac8048d21323da7f65a482bc0db673ec"}, "url": "/docs/compare/?release=16.7#16.7-b97ed85237994136", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "1fe83d7e0b7aa17a1f0f729b4a0c12f0", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "避免 bringetbitmap() 中可能的整数溢出", "evidence": {"same_day": true, "patch_ids": ["43a263cfc4076d37afa82ad82a07bdb5"], "statement_hash": "0df21d34231d373da53a6bee55e2b328ac8048d21323da7f65a482bc0db673ec"}, "url": "/docs/compare/?release=15.11#15.11-4f9db6103a233435", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "4c0001cec4b021e935b71b3a37aa73fe", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "避免 bringetbitmap() 中可能的整数溢出", "evidence": {"same_day": true, "patch_ids": ["43a263cfc4076d37afa82ad82a07bdb5"], "statement_hash": "0df21d34231d373da53a6bee55e2b328ac8048d21323da7f65a482bc0db673ec"}, "url": "/docs/compare/?release=14.16#14.16-b175488683721a19", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "3c029255e641bec15f2ee6842ff93a77", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "避免 bringetbitmap() 中可能的整数溢出", "evidence": {"same_day": true, "patch_ids": ["43a263cfc4076d37afa82ad82a07bdb5"], "statement_hash": "0df21d34231d373da53a6bee55e2b328ac8048d21323da7f65a482bc0db673ec"}, "url": "/docs/compare/?release=13.19#13.19-65695708975bb439", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-c2f171528715b535", "cves": [], "html": "纠正 SLRU bank 编号的错误计算（Yura Sokolov）§
\n这个错误导致实际使用的 bank 数量少于预期，从而增加了争用，但没有造成功能性错误。
", "text": "纠正 SLRU bank 编号的错误计算（Yura Sokolov）§ 这个错误导致实际使用的 bank 数量少于预期，从而增加了争用，但没有造成功能性错误。", "title": "纠正 SLRU bank 编号的错误计算", "commits": ["ffd9b8134"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "82a10634e470f5b993f3a964eeb4c10caf067817cbe0e1eabd472f9c9963c7c6", "section_path": ["变更"], "commit_groups": [["69ab44651", "ffd9b8134"]], "identity_text": "Correct miscalculation of SLRU bank numbers (Yura Sokolov) This error led to using a smaller number of banks than intended, causing more contention but no functional misbehavior.", "commit_aliases": ["69ab44651", "ffd9b8134"], "source_commits": ["ffd9b8134"], "source_entry_id": "17.3/changes/028", "db_id": "216f0c7358444cb2df9e276de347f887", "patch_ids": ["299e029e15e9d372c2d63ff539321951"], "statement_hash": "6ba7796d82c715c0dccbd07be182a9adcaad244e491ba9f29c43e6d88d277ecf", "relations": [], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.3-2f52ccd04b3c82e8", "cves": [], "html": "确保已设置的进程锁存器不会阻止 postmaster 注意到套接字事件（Thomas Munro）§
\n在后端启动工作进程和工作进程退出的极重工作负载下，可能导致 postmaster 无法及时响应传入的客户端连接。
", "text": "确保已设置的进程锁存器不会阻止 postmaster 注意到套接字事件（Thomas Munro）§ 在后端启动工作进程和工作进程退出的极重工作负载下，可能导致 postmaster 无法及时响应传入的客户端连接。", "title": "确保已设置的进程锁存器不会阻止 postmaster 注意到套接字事件", "commits": ["44f400fbc"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "a75cdcaba96806a11c4fe2d50e5c586d1a28448e45f208e12b67aa2f5acb8d72", "section_path": ["变更"], "commit_groups": [["44f400fbc", "73f6b9a3b", "b4b52c911"]], "identity_text": "Ensure that an already-set process latch doesn't prevent the postmaster from noticing socket events (Thomas Munro) An extremely heavy workload of backends launching workers and workers exiting could prevent the postmaster from responding to incoming client connections in a timely fashion.", "commit_aliases": ["44f400fbc", "73f6b9a3b", "b4b52c911"], "source_commits": ["44f400fbc"], "source_entry_id": "17.3/changes/029", "db_id": "0aeeea30a1398421ffc19c9b88e3d47d", "patch_ids": ["26f3c294fc4c7a4dc5f79c68f8c5e836"], "statement_hash": "7043ffdabadf088472c9cf1cc1be25f1750238a6e51989cbe311cbc8af37dbf1", "relations": [{"rule": 2, "type": "equivalent", "target": "58f560957a49bc1a7b13f51ab753f20d", "evidence": {"same_day": true, "patch_ids": ["26f3c294fc4c7a4dc5f79c68f8c5e836"], "statement_hash": "7043ffdabadf088472c9cf1cc1be25f1750238a6e51989cbe311cbc8af37dbf1"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "58f560957a49bc1a7b13f51ab753f20d", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "确保已设置的进程锁存器不会阻止 postmaster 注意到套接字事件", "evidence": {"same_day": true, "patch_ids": ["26f3c294fc4c7a4dc5f79c68f8c5e836"], "statement_hash": "7043ffdabadf088472c9cf1cc1be25f1750238a6e51989cbe311cbc8af37dbf1"}, "url": "/docs/compare/?release=16.7#16.7-c9b569de46610159", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}]}, {"id": "17.3-e9e73d99c1cfb098", "cves": [], "html": "防止流复制备库在读取跨页的 WAL 记录时无限循环（Kyotaro Horiguchi，Alexander Kukushkin）§
\n当记录的后续部分位于需要从不同 WAL 源读取的页面上时会发生此问题。
", "text": "防止流复制备库在读取跨页的 WAL 记录时无限循环（Kyotaro Horiguchi，Alexander Kukushkin）§ 当记录的后续部分位于需要从不同 WAL 源读取的页面上时会发生此问题。", "title": "防止流复制备库在读取跨页的 WAL 记录时无限循环", "commits": ["e6767c0ed"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "a1050799aa81cb51f035413fc9678175572d40e2f730dcf3275fe19b5470294f", "section_path": ["变更"], "commit_groups": [["0f0431e91", "26554facc", "2c2e1d4f4", "6cf1647d8", "a2d4f806c", "e6767c0ed"]], "identity_text": "Prevent streaming standby servers from looping infinitely when reading a WAL record that crosses pages (Kyotaro Horiguchi, Alexander Kukushkin) This would happen when the record's continuation is on a page that needs to be read from a different WAL source.", "commit_aliases": ["0f0431e91", "26554facc", "2c2e1d4f4", "6cf1647d8", "a2d4f806c", "e6767c0ed"], "source_commits": ["e6767c0ed"], "source_entry_id": "17.3/changes/030", "db_id": "6659c5f8e0df6f1f962f8df015c68b49", "patch_ids": ["6bd1862645031c383d6f5fa3e87d128a"], "statement_hash": "8163d04f4c6709be020365b3558ab3cfb180c7df4e85776a541cc615047564ac", "relations": [{"rule": 2, "type": "equivalent", "target": "44f9cbeda7bc216ab467698d3eef592e", "evidence": {"same_day": true, "patch_ids": ["6bd1862645031c383d6f5fa3e87d128a"], "statement_hash": "8163d04f4c6709be020365b3558ab3cfb180c7df4e85776a541cc615047564ac"}}, {"rule": 2, "type": "equivalent", "target": "67dafb471f2271a6320dfe0f290a0ce0", "evidence": {"same_day": true, "patch_ids": ["6bd1862645031c383d6f5fa3e87d128a"], "statement_hash": "8163d04f4c6709be020365b3558ab3cfb180c7df4e85776a541cc615047564ac"}}, {"rule": 2, "type": "equivalent", "target": "76f611c374c0323f13dc341fb4721c32", "evidence": {"same_day": true, "patch_ids": ["6bd1862645031c383d6f5fa3e87d128a"], "statement_hash": "8163d04f4c6709be020365b3558ab3cfb180c7df4e85776a541cc615047564ac"}}, {"rule": 2, "type": "equivalent", "target": "fdc72a7668046cce65c8c39dedeb9249", "evidence": {"same_day": true, "patch_ids": ["6bd1862645031c383d6f5fa3e87d128a"], "statement_hash": "8163d04f4c6709be020365b3558ab3cfb180c7df4e85776a541cc615047564ac"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "44f9cbeda7bc216ab467698d3eef592e", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "防止流复制备库在读取跨页的 WAL 记录时无限循环", "evidence": {"same_day": true, "patch_ids": ["6bd1862645031c383d6f5fa3e87d128a"], "statement_hash": "8163d04f4c6709be020365b3558ab3cfb180c7df4e85776a541cc615047564ac"}, "url": "/docs/compare/?release=16.7#16.7-df1eee243145f866", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "67dafb471f2271a6320dfe0f290a0ce0", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "防止流复制备库在读取跨页的 WAL 记录时无限循环", "evidence": {"same_day": true, "patch_ids": ["6bd1862645031c383d6f5fa3e87d128a"], "statement_hash": "8163d04f4c6709be020365b3558ab3cfb180c7df4e85776a541cc615047564ac"}, "url": "/docs/compare/?release=15.11#15.11-9354a205b1e1b91e", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "76f611c374c0323f13dc341fb4721c32", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "防止流复制备库在读取跨页的 WAL 记录时无限循环", "evidence": {"same_day": true, "patch_ids": ["6bd1862645031c383d6f5fa3e87d128a"], "statement_hash": "8163d04f4c6709be020365b3558ab3cfb180c7df4e85776a541cc615047564ac"}, "url": "/docs/compare/?release=14.16#14.16-b3b12c0bad0d0bc8", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "fdc72a7668046cce65c8c39dedeb9249", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "防止流复制备库在读取跨页的 WAL 记录时无限循环", "evidence": {"same_day": true, "patch_ids": ["6bd1862645031c383d6f5fa3e87d128a"], "statement_hash": "8163d04f4c6709be020365b3558ab3cfb180c7df4e85776a541cc615047564ac"}, "url": "/docs/compare/?release=13.19#13.19-4169e9202c255d82", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-96bd4a8fad85c533", "cves": [], "html": "修复在进程早期启动阶段 FATAL 错误被意外提升为 PANIC 的问题（Noah Misch）§
\n这修复了一些不太可能发生的情况，这些情况会导致 “PANIC: proc_exit() called in child process”。
", "text": "修复在进程早期启动阶段 FATAL 错误被意外提升为 PANIC 的问题（Noah Misch）§ 这修复了一些不太可能发生的情况，这些情况会导致 “PANIC: proc_exit() called in child process”。", "title": "修复在进程早期启动阶段 FATAL 错误被意外提升为 PANIC 的问题", "commits": ["4bd9de3f4"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "ccd86924ca15135af1380f6a6732387e0b1bcec3599ef597288229d498ead1d5", "section_path": ["变更"], "commit_groups": [["315264d70", "4bd9de3f4", "6151769f6", "839da50bd", "8b9cbf492", "ac4a2b403"]], "identity_text": "Fix unintended promotion of FATAL errors to PANIC during early process startup (Noah Misch) This fixes some unlikely cases that would result in PANIC: proc_exit() called in child process.", "commit_aliases": ["315264d70", "4bd9de3f4", "6151769f6", "839da50bd", "8b9cbf492", "ac4a2b403"], "source_commits": ["4bd9de3f4"], "source_entry_id": "17.3/changes/031", "db_id": "93eca6f7915b54f74b93e375c2513842", "patch_ids": ["3dc2ed380d29cd0391ceb9c75aa1e4af"], "statement_hash": "bb23336aef9609b55069d3a3682e82c4adb4c0d727e67333f854df824add2da4", "relations": [{"rule": 2, "type": "equivalent", "target": "b14c042be747a937c3c74162b1b09321", "evidence": {"same_day": true, "patch_ids": ["3dc2ed380d29cd0391ceb9c75aa1e4af"], "statement_hash": "bb23336aef9609b55069d3a3682e82c4adb4c0d727e67333f854df824add2da4"}}, {"rule": 2, "type": "equivalent", "target": "da9210bd08299df78861342f7e09c5d9", "evidence": {"same_day": true, "patch_ids": ["3dc2ed380d29cd0391ceb9c75aa1e4af"], "statement_hash": "bb23336aef9609b55069d3a3682e82c4adb4c0d727e67333f854df824add2da4"}}, {"rule": 2, "type": "equivalent", "target": "f984d853bfadab0b79bd0501cc75f59c", "evidence": {"same_day": true, "patch_ids": ["3dc2ed380d29cd0391ceb9c75aa1e4af"], "statement_hash": "bb23336aef9609b55069d3a3682e82c4adb4c0d727e67333f854df824add2da4"}}, {"rule": 2, "type": "equivalent", "target": "fc52476d2fcf5579cadcfd273916020c", "evidence": {"same_day": true, "patch_ids": ["3dc2ed380d29cd0391ceb9c75aa1e4af"], "statement_hash": "bb23336aef9609b55069d3a3682e82c4adb4c0d727e67333f854df824add2da4"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "b14c042be747a937c3c74162b1b09321", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "修复在进程早期启动阶段 FATAL 错误被意外提升为 PANIC 的问题", "evidence": {"same_day": true, "patch_ids": ["3dc2ed380d29cd0391ceb9c75aa1e4af"], "statement_hash": "bb23336aef9609b55069d3a3682e82c4adb4c0d727e67333f854df824add2da4"}, "url": "/docs/compare/?release=16.7#16.7-795da8c683c4ad88", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "da9210bd08299df78861342f7e09c5d9", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "修复在进程早期启动阶段 FATAL 错误被意外提升为 PANIC 的问题", "evidence": {"same_day": true, "patch_ids": ["3dc2ed380d29cd0391ceb9c75aa1e4af"], "statement_hash": "bb23336aef9609b55069d3a3682e82c4adb4c0d727e67333f854df824add2da4"}, "url": "/docs/compare/?release=15.11#15.11-e74c5a37c2620a7b", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "f984d853bfadab0b79bd0501cc75f59c", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "修复在进程早期启动阶段 FATAL 错误被意外提升为 PANIC 的问题", "evidence": {"same_day": true, "patch_ids": ["3dc2ed380d29cd0391ceb9c75aa1e4af"], "statement_hash": "bb23336aef9609b55069d3a3682e82c4adb4c0d727e67333f854df824add2da4"}, "url": "/docs/compare/?release=14.16#14.16-a449a8f550e33341", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "fc52476d2fcf5579cadcfd273916020c", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "修复在进程早期启动阶段 FATAL 错误被意外提升为 PANIC 的问题", "evidence": {"same_day": true, "patch_ids": ["3dc2ed380d29cd0391ceb9c75aa1e4af"], "statement_hash": "bb23336aef9609b55069d3a3682e82c4adb4c0d727e67333f854df824add2da4"}, "url": "/docs/compare/?release=13.19#13.19-e7ab576b34d2feae", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-c6abed0f8e2bb3a8", "cves": [], "html": "修复操作符族成员操作符或支持函数可能成为悬空引用的情况（Tom Lane）§ §
\n在某些情况下，数据类型可能在其 OID 引用仍然存在于 pg_amop 或 pg_amproc 中时被删除。虽然这不会立即造成问题，但尝试删除所属操作符族会失败，并且 pg_dump 在导出该操作符族时会产生错误的输出。此修复使操作符族/类的创建和修改添加必要的依赖条目，以便删除数据类型时也会删除任何依赖的操作符族元素。但这对已存在的有问题的操作符族没有帮助，因此还在 DROP OPERATOR FAMILY 中增加了一个应急措施，以防止在删除具有悬空成员的族时失败。
修复逻辑解码输出中的多个内存泄漏（Vignesh C，Masahiko Sawada，Boyu Yang）§ § §
", "text": "修复逻辑解码输出中的多个内存泄漏（Vignesh C，Masahiko Sawada，Boyu Yang）§ § §", "title": "修复逻辑解码输出中的多个内存泄漏", "commits": ["836435424", "afe9b0d9f", "bbe68c13a"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "82746a4ab6079d6210e26f01c32c702bd624366894a4afb01a358d73927e8af9", "section_path": ["变更"], "commit_groups": [["4d45e7490", "6c9b39754", "ba230ce40", "bbe68c13a", "cfd6cbcf9"], ["6fc30c24c", "afe9b0d9f", "e749eaf46", "ea792bfd9"], ["836435424", "a786cf04d", "c53d90bb4", "c9b3d4909", "da8bd5d42", "e3a27fd06"]], "identity_text": "Fix multiple memory leaks in logical decoding output (Vignesh C, Masahiko Sawada, Boyu Yang)", "commit_aliases": ["4d45e7490", "6c9b39754", "6fc30c24c", "836435424", "a786cf04d", "afe9b0d9f", "ba230ce40", "bbe68c13a", "c53d90bb4", "c9b3d4909", "cfd6cbcf9", "da8bd5d42", "e3a27fd06", "e749eaf46", "ea792bfd9"], "source_commits": ["836435424", "afe9b0d9f", "bbe68c13a"], "source_entry_id": "17.3/changes/033", "db_id": "72d566e30a8d7b411efea718bcd02235", "patch_ids": ["083b3d92b52591987156749d03a56ca8", "29a2d645a1b73678c67988f3f9010a5b", "50035a0a455b496bdee09300ecbd87d5"], "statement_hash": "d36acd9215ab16034e1e7aa511f9ed84121072688abdeba96f8e7547f04a32f3", "relations": [{"rule": 2, "type": "equivalent", "target": "13d179398909add9970f46ab481b9189", "evidence": {"same_day": true, "patch_ids": ["083b3d92b52591987156749d03a56ca8", "29a2d645a1b73678c67988f3f9010a5b", "50035a0a455b496bdee09300ecbd87d5"], "statement_hash": "d36acd9215ab16034e1e7aa511f9ed84121072688abdeba96f8e7547f04a32f3"}}, {"rule": 2, "type": "equivalent", "target": "4d10718ab097a65a0eb68ddf6be4859c", "evidence": {"same_day": true, "patch_ids": ["083b3d92b52591987156749d03a56ca8", "29a2d645a1b73678c67988f3f9010a5b", "50035a0a455b496bdee09300ecbd87d5"], "statement_hash": "d36acd9215ab16034e1e7aa511f9ed84121072688abdeba96f8e7547f04a32f3"}}, {"rule": 2, "type": "equivalent", "target": "7b50a2183c182642d28afec0183d605b", "evidence": {"same_day": true, "patch_ids": ["083b3d92b52591987156749d03a56ca8", "29a2d645a1b73678c67988f3f9010a5b", "50035a0a455b496bdee09300ecbd87d5"], "statement_hash": "d36acd9215ab16034e1e7aa511f9ed84121072688abdeba96f8e7547f04a32f3"}}, {"rule": 2, "type": "equivalent", "target": "d3be3c9794f3530e444e4a59e5badd78", "evidence": {"same_day": true, "patch_ids": ["083b3d92b52591987156749d03a56ca8", "29a2d645a1b73678c67988f3f9010a5b", "50035a0a455b496bdee09300ecbd87d5"], "statement_hash": "d36acd9215ab16034e1e7aa511f9ed84121072688abdeba96f8e7547f04a32f3"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "13d179398909add9970f46ab481b9189", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "修复逻辑解码输出中的多个内存泄漏", "evidence": {"same_day": true, "patch_ids": ["083b3d92b52591987156749d03a56ca8", "29a2d645a1b73678c67988f3f9010a5b", "50035a0a455b496bdee09300ecbd87d5"], "statement_hash": "d36acd9215ab16034e1e7aa511f9ed84121072688abdeba96f8e7547f04a32f3"}, "url": "/docs/compare/?release=16.7#16.7-8a82d9eb7b056fa3", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "d3be3c9794f3530e444e4a59e5badd78", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "修复逻辑解码输出中的多个内存泄漏", "evidence": {"same_day": true, "patch_ids": ["083b3d92b52591987156749d03a56ca8", "29a2d645a1b73678c67988f3f9010a5b", "50035a0a455b496bdee09300ecbd87d5"], "statement_hash": "d36acd9215ab16034e1e7aa511f9ed84121072688abdeba96f8e7547f04a32f3"}, "url": "/docs/compare/?release=15.11#15.11-4ddb503d2428c1e4", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "7b50a2183c182642d28afec0183d605b", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "修复逻辑解码输出中的多个内存泄漏", "evidence": {"same_day": true, "patch_ids": ["083b3d92b52591987156749d03a56ca8", "29a2d645a1b73678c67988f3f9010a5b", "50035a0a455b496bdee09300ecbd87d5"], "statement_hash": "d36acd9215ab16034e1e7aa511f9ed84121072688abdeba96f8e7547f04a32f3"}, "url": "/docs/compare/?release=14.16#14.16-bfc8d46c250ae217", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "4d10718ab097a65a0eb68ddf6be4859c", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "修复逻辑解码输出中的多个内存泄漏", "evidence": {"same_day": true, "patch_ids": ["083b3d92b52591987156749d03a56ca8", "29a2d645a1b73678c67988f3f9010a5b", "50035a0a455b496bdee09300ecbd87d5"], "statement_hash": "d36acd9215ab16034e1e7aa511f9ed84121072688abdeba96f8e7547f04a32f3"}, "url": "/docs/compare/?release=13.19#13.19-fbacd441376f2672", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-f47ade87d4a293b0", "cves": [], "html": "修复更新 application_name 或 cluster_name 设置时的小型内存泄漏（Tofig Aliev）§
避免后台进程尝试检查 synchronized_standby_slots 的新值时崩溃（Álvaro Herrera）§
避免在测试 wal_skip_threshold 条件时的整数溢出（Tom Lane）§
创建非常大的关系的事务可能会错误地决定通过将关系复制到 WAL 而非 fsync 来确保持久性，从而否定了 wal_skip_threshold 的意义。（这仅在 wal_level 设置为 minimal 时才有影响，否则无论如何都需要 WAL 复制。）
修复缓存查找期间不安全的操作顺序（Noah Misch）§
\n唯一已知的后果是在 GRANT TABLESPACE 期间出现通常无害的 “you don't own a lock of type ExclusiveLock” 警告。
避免并行清理中潜在的释放后使用问题（Vallimaharajan G、John Naylor）§
\n这个 bug 在标准构建中似乎不会造成后果，但理论上仍然存在风险。
", "text": "避免并行清理中潜在的释放后使用问题（Vallimaharajan G、John Naylor）§ 这个 bug 在标准构建中似乎不会造成后果，但理论上仍然存在风险。", "title": "避免并行清理中潜在的释放后使用问题", "commits": ["83ce20d67"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "0708a93125bd1d8d9d5e2664e10f1e72d2299a25ce53ac32f2927ce6595551dc", "section_path": ["变更"], "commit_groups": [["83ce20d67", "ccc8194e4"]], "identity_text": "Avoid potential use-after-free in parallel vacuum (Vallimaharajan G, John Naylor) This bug seems to have no consequences in standard builds, but it's theoretically a hazard.", "commit_aliases": ["83ce20d67", "ccc8194e4"], "source_commits": ["83ce20d67"], "source_entry_id": "17.3/changes/038", "db_id": "547833d0a4e833205982bea5b210cce9", "patch_ids": ["06a4778621170aff8a7af6ea38fca11c"], "statement_hash": "0d602dd086c0319e5ee123ad3bc1e03421292dda3e13b6e9b6c6abc084efa63c", "relations": [], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.3-b69a7beee297aecf", "cves": [], "html": "修复在较旧 ARM 平台上使用 JIT 时可能出现的 “failed to resolve name” 失败（Thomas Munro）§
\n这可能是由于 gcc 和 clang 之间对 -moutline-atomics 默认设置不一致导致的。至少已知 Debian 和 Ubuntu 提供了针对 armv8-a 的 gcc 和 clang 编译器，但它们在默认使用 outline atomics 方面存在差异。
修复 WITH RECURSIVE ... UNION 查询中的断言失败（David Rowley）§
避免在集合操作叶查询包含集合操作时规则反解析中的断言失败（Man Zeng，Tom Lane）§
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", "text": "避免并行查询启动时的边界情况断言失败（Tom Lane）§", "title": "避免并行查询启动时的边界情况断言失败", "commits": ["556f7b7bc"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "3b2a72c20728be145debd4ae7ba383231e0e3ff9cc37563b9324d0976061f884", "section_path": ["变更"], "commit_groups": [["3eea7a0c9", "4089b9bd6", "4d20bad5e", "556f7b7bc", "8a95ad3b2", "bb649b553"]], "identity_text": "Avoid edge-case assertion failure in parallel query startup (Tom Lane)", "commit_aliases": ["3eea7a0c9", "4089b9bd6", "4d20bad5e", "556f7b7bc", "8a95ad3b2", "bb649b553"], "source_commits": ["556f7b7bc"], "source_entry_id": "17.3/changes/042", "db_id": "afb62e2219d6171b37153e1b07c79a3c", "patch_ids": ["f298e10f6df8ed0882f70ae44117812c"], "statement_hash": "b1ddf81bce204c8887e79d306680fe956f6af3c784286f19c74ced31e3063be7", "relations": [{"rule": 2, "type": "equivalent", "target": "3abae71410ce108faa00b2da6ec38a1a", "evidence": {"same_day": true, "patch_ids": ["f298e10f6df8ed0882f70ae44117812c"], "statement_hash": "b1ddf81bce204c8887e79d306680fe956f6af3c784286f19c74ced31e3063be7"}}, {"rule": 2, "type": "equivalent", "target": "bfd249fdf1d29e1a2671b588f5c25368", "evidence": {"same_day": true, "patch_ids": ["f298e10f6df8ed0882f70ae44117812c"], "statement_hash": "b1ddf81bce204c8887e79d306680fe956f6af3c784286f19c74ced31e3063be7"}}, {"rule": 2, "type": "equivalent", "target": "f773276377191676df7c3642b74798a8", "evidence": {"same_day": true, "patch_ids": ["f298e10f6df8ed0882f70ae44117812c"], "statement_hash": "b1ddf81bce204c8887e79d306680fe956f6af3c784286f19c74ced31e3063be7"}}, {"rule": 2, "type": "equivalent", "target": "fd91c149b0074746d42181c8ca343d83", "evidence": {"same_day": true, "patch_ids": ["f298e10f6df8ed0882f70ae44117812c"], "statement_hash": "b1ddf81bce204c8887e79d306680fe956f6af3c784286f19c74ced31e3063be7"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "3abae71410ce108faa00b2da6ec38a1a", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "避免并行查询启动时的边界情况断言失败", "evidence": {"same_day": true, "patch_ids": ["f298e10f6df8ed0882f70ae44117812c"], "statement_hash": "b1ddf81bce204c8887e79d306680fe956f6af3c784286f19c74ced31e3063be7"}, "url": "/docs/compare/?release=16.7#16.7-98a37c42135391b3", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "bfd249fdf1d29e1a2671b588f5c25368", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "避免并行查询启动时的边界情况断言失败", "evidence": {"same_day": true, "patch_ids": ["f298e10f6df8ed0882f70ae44117812c"], "statement_hash": "b1ddf81bce204c8887e79d306680fe956f6af3c784286f19c74ced31e3063be7"}, "url": "/docs/compare/?release=15.11#15.11-5e432f4b08cbf92e", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "f773276377191676df7c3642b74798a8", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "避免并行查询启动时的边界情况断言失败", "evidence": {"same_day": true, "patch_ids": ["f298e10f6df8ed0882f70ae44117812c"], "statement_hash": "b1ddf81bce204c8887e79d306680fe956f6af3c784286f19c74ced31e3063be7"}, "url": "/docs/compare/?release=14.16#14.16-89a40fa712bb947f", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "fd91c149b0074746d42181c8ca343d83", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "避免并行查询启动时的边界情况断言失败", "evidence": {"same_day": true, "patch_ids": ["f298e10f6df8ed0882f70ae44117812c"], "statement_hash": "b1ddf81bce204c8887e79d306680fe956f6af3c784286f19c74ced31e3063be7"}, "url": "/docs/compare/?release=13.19#13.19-382281fdd907f983", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-e2b39e4cdc7369bf", "cves": [], "html": "修复关闭时写出统计文件的断言失败（Michael Paquier）§
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", "text": "避免 valgrind 对字符串 hash 代码发出告警（John Naylor）§", "title": "避免 valgrind 对字符串 hash 代码发出告警", "commits": ["6555fe197"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "ca4b79bb1bf837ff394dd6edbe29528edae464dc65b44661ca9d605af09258bb", "section_path": ["变更"], "commit_groups": [["235328ee4", "6555fe197"]], "identity_text": "Avoid valgrind complaints about string hashing code (John Naylor)", "commit_aliases": ["235328ee4", "6555fe197"], "source_commits": ["6555fe197"], "source_entry_id": "17.3/changes/044", "db_id": "47c0a121b4a634ef37016c3f8d8e6941", "patch_ids": ["b3eed8748adc1f33951ac91f32e837e6"], "statement_hash": "4bf381bd6569b8a6a184430a7870d66d2bf517ddfbdf9674ee35d21f3bea62c2", "relations": [], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.3-dd0d552be92812cf", "cves": [], "html": "在 NULLIF() 中，避免将可读写的扩展对象指针传递给数据类型的等值函数（Tom Lane）§
如果给定可读写指针，等值函数可能会修改或删除该对象，如果我们随后决定将其作为 NULLIF() 的结果返回，这将是有问题的。对于任何内置等值函数可能没有问题，但用 PL/pgSQL 编写的函数很容易展示出故障。
确保对 INSERT 中默认空值的表达式预处理被正确应用（Tom Lane）§
如果目标列是域类型，规划器必须插入一个强制转换到域的步骤而不仅仅是一个空常量，而此表达式遗漏了一些必要的处理步骤。对于基于核心数据类型的域没有已知后果，但理论上对于基于扩展类型的域可能会出错。
", "text": "确保对 INSERT 中默认空值的表达式预处理被正确应用（Tom Lane）§ 如果目标列是域类型，规划器必须插入一个强制转换到域的步骤而不仅仅是一个空常量，而此表达式遗漏了一些必要的处理步骤。对于基于核心数据类型的域没有已知后果，但理论上对于基于扩展类型的域可能会出错。", "title": "确保对 INSERT 中默认空值的表达式预处理被正确应用", "commits": ["6e41e9e5e"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "8b18b0e562ccbd4de00856e475c3fcd5e75d2a3f69acf9b8544e6ad95d4fb8b6", "section_path": ["变更"], "commit_groups": [["0da39aa76", "6655d931c", "6e41e9e5e", "bb85d0935", "c05268e6e"]], "identity_text": "Ensure that expression preprocessing is applied to a default null value in INSERT (Tom Lane) If the target column is of a domain type, the planner must insert a coerce-to-domain step not just a null constant, and this expression missed going through some required processing steps. There is no known consequence with domains based on core data types, but in theory an error could occur with domains based on extension types.", "commit_aliases": ["0da39aa76", "6655d931c", "6e41e9e5e", "bb85d0935", "c05268e6e"], "source_commits": ["6e41e9e5e"], "source_entry_id": "17.3/changes/046", "db_id": "5c924d14c948271fbc38c8d281ec24e1", "patch_ids": ["81912066ba5e75af1340feda03524ddb"], "statement_hash": "c981aff907b93603eaf7ded2109968ea62ca66b71894982bce348a2ddd2a1483", "relations": [{"rule": 2, "type": "equivalent", "target": "e38ec1d2b1103ec9341c5b1123335159", "evidence": {"same_day": true, "patch_ids": ["81912066ba5e75af1340feda03524ddb"], "statement_hash": "c981aff907b93603eaf7ded2109968ea62ca66b71894982bce348a2ddd2a1483"}}, {"rule": 2, "type": "equivalent", "target": "e461e7ee096e6254fa7012871a9c1f40", "evidence": {"same_day": true, "patch_ids": ["81912066ba5e75af1340feda03524ddb"], "statement_hash": "c981aff907b93603eaf7ded2109968ea62ca66b71894982bce348a2ddd2a1483"}}, {"rule": 2, "type": "equivalent", "target": "f058a89b390c55869f483a660569b0aa", "evidence": {"same_day": true, "patch_ids": ["81912066ba5e75af1340feda03524ddb"], "statement_hash": "c981aff907b93603eaf7ded2109968ea62ca66b71894982bce348a2ddd2a1483"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "f058a89b390c55869f483a660569b0aa", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "确保对 INSERT 中默认空值的表达式预处理被正确应用", "evidence": {"same_day": true, "patch_ids": ["81912066ba5e75af1340feda03524ddb"], "statement_hash": "c981aff907b93603eaf7ded2109968ea62ca66b71894982bce348a2ddd2a1483"}, "url": "/docs/compare/?release=16.7#16.7-6680b0773026d87c", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "e38ec1d2b1103ec9341c5b1123335159", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "确保对 INSERT 中默认空值的表达式预处理被正确应用", "evidence": {"same_day": true, "patch_ids": ["81912066ba5e75af1340feda03524ddb"], "statement_hash": "c981aff907b93603eaf7ded2109968ea62ca66b71894982bce348a2ddd2a1483"}, "url": "/docs/compare/?release=15.11#15.11-7e089e52061bb4f6", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "e461e7ee096e6254fa7012871a9c1f40", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "确保对 INSERT 中默认空值的表达式预处理被正确应用", "evidence": {"same_day": true, "patch_ids": ["81912066ba5e75af1340feda03524ddb"], "statement_hash": "c981aff907b93603eaf7ded2109968ea62ca66b71894982bce348a2ddd2a1483"}, "url": "/docs/compare/?release=14.16#14.16-5ed580f6f0ac7b55", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}]}, {"id": "17.3-aee89e47aff52201", "cves": [], "html": "避免在已含有数据的关系 fork 上启动批量写入时发生数据丢失（Matthias van de Meent）§
\n任何已有数据都会被零值覆盖。核心 PostgreSQL 本身从不会这么做，因此不受影响；不过某些扩展可能希望这样做。
", "text": "避免在已含有数据的关系 fork 上启动批量写入时发生数据丢失（Matthias van de Meent）§ 任何已有数据都会被零值覆盖。核心 PostgreSQL 本身从不会这么做，因此不受影响；不过某些扩展可能希望这样做。", "title": "避免在已含有数据的关系 fork 上启动批量写入时发生数据丢失", "commits": ["969583553"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "f301ecccf785e6958ecd9a07a86d0d3da9a5ecdd49ace8967b49de056b42d1be", "section_path": ["变更"], "commit_groups": [["969583553", "ee937f040"]], "identity_text": "Avoid data loss when starting a bulk write on a relation fork that already contains data (Matthias van de Meent) Any pre-existing data was overwritten with zeroes. This is not an issue for core PostgreSQL, which never does that. Some extensions would like to, however.", "commit_aliases": ["969583553", "ee937f040"], "source_commits": ["969583553"], "source_entry_id": "17.3/changes/047", "db_id": "71d807b4c6fb85d4d87cf631f83775af", "patch_ids": ["9a769927fd1282d155e5f2f37a8c6c3c"], "statement_hash": "0611e544e64dacd71186178c55d35f2799666f14b1e1a63e5a734c3edf94c328", "relations": [], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.3-5319d0384d56ccd2", "cves": [], "html": "避免服务器进程试图遍历一个并非由自己创建的共享 radix tree 时崩溃（Masahiko Sawada）§
\n核心 PostgreSQL 中没有任何代码会这样做，但扩展可能会有这种需求。
", "text": "避免服务器进程试图遍历一个并非由自己创建的共享 radix tree 时崩溃（Masahiko Sawada）§ 核心 PostgreSQL 中没有任何代码会这样做，但扩展可能会有这种需求。", "title": "避免服务器进程试图遍历一个并非由自己创建的共享 radix tree 时崩溃", "commits": ["9af2b3435"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "95094425aeb6f843f63a501951a4fb11d2dd0077b59b9fc8703861440d6f3cdc", "section_path": ["变更"], "commit_groups": [["9af2b3435"]], "identity_text": "Avoid crash if a server process tried to iterate over a shared radix tree that it didn't create (Masahiko Sawada) There is no code in core PostgreSQL that does this, but an extension might wish to.", "commit_aliases": ["9af2b3435"], "source_commits": ["9af2b3435"], "source_entry_id": "17.3/changes/048", "db_id": "2d142595158e0344e548fe6ac8e7b0f6", "patch_ids": ["38bde953a4ea68aa5121f05df8e2e67f"], "statement_hash": "66dcdf465aff20164f14daf7a4ae44b438e1fe0eab94f202000a26f3b0d58be1", "relations": [], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.3-fb5e839658ad18ea", "cves": [], "html": "修复 PL/Python 中的内存泄漏（Mat Arye，Tom Lane）§
\n重复使用 PLyPlan.execute 或 plpy.cursor 会导致在调用 PL/Python 函数的持续时间内产生内存泄漏。
修复 PL/Tcl 使其能在 Tcl 9 下编译（Peter Eisentraut）§
", "text": "修复 PL/Tcl 使其能在 Tcl 9 下编译（Peter Eisentraut）§", "title": "修复 PL/Tcl 使其能在 Tcl 9 下编译", "commits": ["f979197eb"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "750d35ecdba7517523e20db7fc1d19620df80f2df6c4ed462acb5ee5b692e270", "section_path": ["变更"], "commit_groups": [["07c77803c", "17d081a6f", "32a2aa77e", "a5f9cbde9", "f230e27a2", "f979197eb"]], "identity_text": "Fix PL/Tcl to compile with Tcl 9 (Peter Eisentraut)", "commit_aliases": ["07c77803c", "17d081a6f", "32a2aa77e", "a5f9cbde9", "f230e27a2", "f979197eb"], "source_commits": ["f979197eb"], "source_entry_id": "17.3/changes/050", "db_id": "eab1bcb0a34c2e2111bf60e2805ede38", "patch_ids": ["ec3541438c80f52fc50bed404695777e"], "statement_hash": "3bf0856bd07cd27e1b94839bf3ad9387face99c5bba929e356d86223f0660f24", "relations": [{"rule": 2, "type": "equivalent", "target": "0d6f80ed82ee1b2e80a6f8ca9c87a12d", "evidence": {"same_day": true, "patch_ids": ["ec3541438c80f52fc50bed404695777e"], "statement_hash": "3bf0856bd07cd27e1b94839bf3ad9387face99c5bba929e356d86223f0660f24"}}, {"rule": 2, "type": "equivalent", "target": "129c07a2f63ef2dd97017ea2d4602005", "evidence": {"same_day": true, "patch_ids": ["ec3541438c80f52fc50bed404695777e"], "statement_hash": "3bf0856bd07cd27e1b94839bf3ad9387face99c5bba929e356d86223f0660f24"}}, {"rule": 2, "type": "equivalent", "target": "43ec78dc409230e526b689e924ccab90", "evidence": {"same_day": true, "patch_ids": ["ec3541438c80f52fc50bed404695777e"], "statement_hash": "3bf0856bd07cd27e1b94839bf3ad9387face99c5bba929e356d86223f0660f24"}}, {"rule": 2, "type": "equivalent", "target": "b5e22eeed852a78978fa5b94ff645acf", "evidence": {"same_day": true, "patch_ids": ["ec3541438c80f52fc50bed404695777e"], "statement_hash": "3bf0856bd07cd27e1b94839bf3ad9387face99c5bba929e356d86223f0660f24"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "43ec78dc409230e526b689e924ccab90", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "修复 PL/Tcl 使其能在 Tcl 9 下编译", "evidence": {"same_day": true, "patch_ids": ["ec3541438c80f52fc50bed404695777e"], "statement_hash": "3bf0856bd07cd27e1b94839bf3ad9387face99c5bba929e356d86223f0660f24"}, "url": "/docs/compare/?release=16.7#16.7-0eaf6e78dbdc6912", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "129c07a2f63ef2dd97017ea2d4602005", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "修复 PL/Tcl 使其能在 Tcl 9 下编译", "evidence": {"same_day": true, "patch_ids": ["ec3541438c80f52fc50bed404695777e"], "statement_hash": "3bf0856bd07cd27e1b94839bf3ad9387face99c5bba929e356d86223f0660f24"}, "url": "/docs/compare/?release=15.11#15.11-3d33af5f4d4ad225", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "b5e22eeed852a78978fa5b94ff645acf", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "修复 PL/Tcl 使其能在 Tcl 9 下编译", "evidence": {"same_day": true, "patch_ids": ["ec3541438c80f52fc50bed404695777e"], "statement_hash": "3bf0856bd07cd27e1b94839bf3ad9387face99c5bba929e356d86223f0660f24"}, "url": "/docs/compare/?release=14.16#14.16-b84663fdc8246216", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "0d6f80ed82ee1b2e80a6f8ca9c87a12d", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "修复 PL/Tcl 使其能在 Tcl 9 下编译", "evidence": {"same_day": true, "patch_ids": ["ec3541438c80f52fc50bed404695777e"], "statement_hash": "3bf0856bd07cd27e1b94839bf3ad9387face99c5bba929e356d86223f0660f24"}, "url": "/docs/compare/?release=13.19#13.19-c88b3b083e0ea08f", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-dfe5a8c2c2423920", "cves": [], "html": "在 ecpg 预处理器中，修复引用超出作用域变量的游标可能被错误处理的问题（Tom Lane）§
", "text": "在 ecpg 预处理器中，修复引用超出作用域变量的游标可能被错误处理的问题（Tom Lane）§", "title": "在 ecpg 预处理器中，修复引用超出作用域变量的游标可能被错误处理的问题", "commits": ["a963abd54"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "44f1a849d3d37a35889fe3d2a08c79c2465766b06e4d66631ea197dce426986b", "section_path": ["变更"], "commit_groups": [["2f696453d", "52c7a44e9", "60b47525c", "a963abd54", "cca34f68c", "e359cbb84"]], "identity_text": "In the ecpg preprocessor, fix possible misprocessing of cursors that reference out-of-scope variables (Tom Lane)", "commit_aliases": ["2f696453d", "52c7a44e9", "60b47525c", "a963abd54", "cca34f68c", "e359cbb84"], "source_commits": ["a963abd54"], "source_entry_id": "17.3/changes/051", "db_id": "c4ec9fcca2f80cbbf22f2737f8f5fcb6", "patch_ids": ["652db5485711a687b7406349a4c34e0e"], "statement_hash": "e0ed27912744c40aae8cb5494cb7622520121573dc0119e7c295c1e55156bc33", "relations": [{"rule": 2, "type": "equivalent", "target": "20aa43ec07c27d96fa929c253c41d044", "evidence": {"same_day": true, "patch_ids": ["652db5485711a687b7406349a4c34e0e"], "statement_hash": "e0ed27912744c40aae8cb5494cb7622520121573dc0119e7c295c1e55156bc33"}}, {"rule": 2, "type": "equivalent", "target": "36dfe57940df538e7fb47cd7fdbd37be", "evidence": {"same_day": true, "patch_ids": ["652db5485711a687b7406349a4c34e0e"], "statement_hash": "e0ed27912744c40aae8cb5494cb7622520121573dc0119e7c295c1e55156bc33"}}, {"rule": 2, "type": "equivalent", "target": "674e320ee70fdf11884316cc30475c46", "evidence": {"same_day": true, "patch_ids": ["652db5485711a687b7406349a4c34e0e"], "statement_hash": "e0ed27912744c40aae8cb5494cb7622520121573dc0119e7c295c1e55156bc33"}}, {"rule": 2, "type": "equivalent", "target": "f1227cacc29d5455e9dce3398b0622d4", "evidence": {"same_day": true, "patch_ids": ["652db5485711a687b7406349a4c34e0e"], "statement_hash": "e0ed27912744c40aae8cb5494cb7622520121573dc0119e7c295c1e55156bc33"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "f1227cacc29d5455e9dce3398b0622d4", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "在 ecpg 预处理器中，修复引用超出作用域变量的游标可能被错误处理的问题", "evidence": {"same_day": true, "patch_ids": ["652db5485711a687b7406349a4c34e0e"], "statement_hash": "e0ed27912744c40aae8cb5494cb7622520121573dc0119e7c295c1e55156bc33"}, "url": "/docs/compare/?release=16.7#16.7-5309e9bb99c52b63", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "674e320ee70fdf11884316cc30475c46", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "在 ecpg 预处理器中，修复引用超出作用域变量的游标可能被错误处理的问题", "evidence": {"same_day": true, "patch_ids": ["652db5485711a687b7406349a4c34e0e"], "statement_hash": "e0ed27912744c40aae8cb5494cb7622520121573dc0119e7c295c1e55156bc33"}, "url": "/docs/compare/?release=15.11#15.11-0c6c96c4fed5dcb6", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "20aa43ec07c27d96fa929c253c41d044", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "在 ecpg 预处理器中，修复引用超出作用域变量的游标可能被错误处理的问题", "evidence": {"same_day": true, "patch_ids": ["652db5485711a687b7406349a4c34e0e"], "statement_hash": "e0ed27912744c40aae8cb5494cb7622520121573dc0119e7c295c1e55156bc33"}, "url": "/docs/compare/?release=14.16#14.16-e15053be8332fda8", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "36dfe57940df538e7fb47cd7fdbd37be", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "在 ecpg 预处理器中，修复引用超出作用域变量的游标可能被错误处理的问题", "evidence": {"same_day": true, "patch_ids": ["652db5485711a687b7406349a4c34e0e"], "statement_hash": "e0ed27912744c40aae8cb5494cb7622520121573dc0119e7c295c1e55156bc33"}, "url": "/docs/compare/?release=13.19#13.19-96df37ab6e655d81", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-fe0d2d65c5d4aa3b", "cves": [], "html": "在 ecpg 中，修复关于不支持使用 COPY ... FROM STDIN 的编译时警告（Ryo Kanbayashi）§
之前，由于拼写错误，预期的警告未被发出。
", "text": "在 ecpg 中，修复关于不支持使用 COPY ... FROM STDIN 的编译时警告（Ryo Kanbayashi）§ 之前，由于拼写错误，预期的警告未被发出。", "title": "在 ecpg 中，修复关于不支持使用 COPY ... FROM STDIN 的编译时警告", "commits": ["ba2dbedd5"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "0a7373ad206f2302c531b71dabcf0dcc3f4aede87773538f9ecfd1518693a07f", "section_path": ["变更"], "commit_groups": [["226c9048d", "5c7c34db2", "71ef47cf0", "94b914f60", "ba2dbedd5", "d06ab3c0c"]], "identity_text": "In ecpg, fix compile-time warnings about unsupported use of COPY ... FROM STDIN (Ryo Kanbayashi) Previously, the intended warning was not issued due to a typo.", "commit_aliases": ["226c9048d", "5c7c34db2", "71ef47cf0", "94b914f60", "ba2dbedd5", "d06ab3c0c"], "source_commits": ["ba2dbedd5"], "source_entry_id": "17.3/changes/052", "db_id": "84b39b054b34211ea1d18a290c6cddf4", "patch_ids": ["859d58d96aa40e53f1e9fef9aa3f19a9"], "statement_hash": "697f5927852e7b4fbd940f3cf6672127a6ee3d4e28a3272462181a43d4f07b0f", "relations": [{"rule": 2, "type": "equivalent", "target": "16348925260a3ff03e3723c9dd8c2397", "evidence": {"same_day": true, "patch_ids": ["859d58d96aa40e53f1e9fef9aa3f19a9"], "statement_hash": "697f5927852e7b4fbd940f3cf6672127a6ee3d4e28a3272462181a43d4f07b0f"}}, {"rule": 2, "type": "equivalent", "target": "3ff78f3d2c970b520dbfb8115656b8f2", "evidence": {"same_day": true, "patch_ids": ["859d58d96aa40e53f1e9fef9aa3f19a9"], "statement_hash": "697f5927852e7b4fbd940f3cf6672127a6ee3d4e28a3272462181a43d4f07b0f"}}, {"rule": 2, "type": "equivalent", "target": "bb2b663ff581a3c13fc37566fef8aea2", "evidence": {"same_day": true, "patch_ids": ["859d58d96aa40e53f1e9fef9aa3f19a9"], "statement_hash": "697f5927852e7b4fbd940f3cf6672127a6ee3d4e28a3272462181a43d4f07b0f"}}, {"rule": 2, "type": "equivalent", "target": "bec199ad48fa75cf12e6e0349c6252cf", "evidence": {"same_day": true, "patch_ids": ["859d58d96aa40e53f1e9fef9aa3f19a9"], "statement_hash": "697f5927852e7b4fbd940f3cf6672127a6ee3d4e28a3272462181a43d4f07b0f"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "bec199ad48fa75cf12e6e0349c6252cf", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "在 ecpg 中，修复关于不支持使用 COPY ... FROM STDIN 的编译时警告", "evidence": {"same_day": true, "patch_ids": ["859d58d96aa40e53f1e9fef9aa3f19a9"], "statement_hash": "697f5927852e7b4fbd940f3cf6672127a6ee3d4e28a3272462181a43d4f07b0f"}, "url": "/docs/compare/?release=16.7#16.7-5ec2b4f354ab6cca", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "3ff78f3d2c970b520dbfb8115656b8f2", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "在 ecpg 中，修复关于不支持使用 COPY ... FROM STDIN 的编译时警告", "evidence": {"same_day": true, "patch_ids": ["859d58d96aa40e53f1e9fef9aa3f19a9"], "statement_hash": "697f5927852e7b4fbd940f3cf6672127a6ee3d4e28a3272462181a43d4f07b0f"}, "url": "/docs/compare/?release=15.11#15.11-18a63d75a25dde2a", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "16348925260a3ff03e3723c9dd8c2397", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "在 ecpg 中，修复关于不支持使用 COPY ... FROM STDIN 的编译时警告", "evidence": {"same_day": true, "patch_ids": ["859d58d96aa40e53f1e9fef9aa3f19a9"], "statement_hash": "697f5927852e7b4fbd940f3cf6672127a6ee3d4e28a3272462181a43d4f07b0f"}, "url": "/docs/compare/?release=14.16#14.16-56ba6358d3159b1f", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "bb2b663ff581a3c13fc37566fef8aea2", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "在 ecpg 中，修复关于不支持使用 COPY ... FROM STDIN 的编译时警告", "evidence": {"same_day": true, "patch_ids": ["859d58d96aa40e53f1e9fef9aa3f19a9"], "statement_hash": "697f5927852e7b4fbd940f3cf6672127a6ee3d4e28a3272462181a43d4f07b0f"}, "url": "/docs/compare/?release=13.19#13.19-6b7efc6e2fb6ea0b", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-5fa35c7bbb96c75e", "cves": [], "html": "修复 psql 以安全处理以 SJIS 编码的文件路径名（Tom Lane）§
\nSJIS 中的一些双字节字符的第二个字节等于 ASCII 反斜杠（\\）。这些字符会被路径名规范化所损坏，导致无法访问名称中包含此类字符的文件。
为 psql 增加 COPY (MERGE INTO) 的 Tab 补全（Jian He）§
修复 pgbench 和 psql 中使用错误版本的 pqsignal() 的问题（Fujii Masao，Tom Lane）§
此错误可能导致在 pgbench 中使用 -T 选项或在 psql 中使用 \\watch 命令时出现异常行为，原因是被中断的系统调用未能按预期恢复。
修复 pgbench 中某些嵌套 \\if 构造的错误执行（Michail Nikolaev）§
出现在为假（未执行）的 \\if 分支中的 \\if 命令被错误地当作 \\elif 处理。
在 pgbench 中，修复表初始化期间进度消息可能显示错误的问题（Yushi Ogiwara，Tatsuo Ishii，Fujii Masao）§ §
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由于 pg_controldata 即使在 CRC 检查失败时也会尝试打印 pg_control 的内容，因此必须注意不要因无效字段值而出现异常行为。此补丁修复了无效时间戳和看似为负数的 WAL 段大小触发的一些问题。
修复 pg_dump 中当身份序列附加到作为扩展成员的表时可能崩溃的问题（Tom Lane）§
", "text": "修复 pg_dump 中当身份序列附加到作为扩展成员的表时可能崩溃的问题（Tom Lane）§", "title": "修复 pg_dump 中当身份序列附加到作为扩展成员的表时可能崩溃的问题", "commits": ["ad950ea98"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "4673be3dc5805dbd539a629b90d205c6f353f9789c14b5e59412338d4f4b7269", "section_path": ["变更"], "commit_groups": [["6978129b4", "782cc1aa3", "7b8cb9cd6", "ad950ea98", "b6df2d6e5", "c7f3c414f"]], "identity_text": "Fix possible crash in pg_dump with identity sequences attached to tables that are extension members (Tom Lane)", "commit_aliases": ["6978129b4", "782cc1aa3", "7b8cb9cd6", "ad950ea98", "b6df2d6e5", "c7f3c414f"], "source_commits": ["ad950ea98"], "source_entry_id": "17.3/changes/059", "db_id": "7f23a5667f7e389c5f499ce86c38be10", "patch_ids": ["b9eaf84f0baf1dfcbda334cf6921c7c2"], "statement_hash": "dc91f6a071dd8a9fa613462ac52d080a59f42dd4940b888412cfb27b4262447e", "relations": [{"rule": 2, "type": "equivalent", "target": "477e86c272f9e2c3dbeca3e4c5fcc955", "evidence": {"same_day": true, "patch_ids": ["b9eaf84f0baf1dfcbda334cf6921c7c2"], "statement_hash": "dc91f6a071dd8a9fa613462ac52d080a59f42dd4940b888412cfb27b4262447e"}}, {"rule": 2, "type": "equivalent", "target": "8d305380dee5f3d46413d953276a0dad", "evidence": {"same_day": true, "patch_ids": ["b9eaf84f0baf1dfcbda334cf6921c7c2"], "statement_hash": "dc91f6a071dd8a9fa613462ac52d080a59f42dd4940b888412cfb27b4262447e"}}, {"rule": 2, "type": "equivalent", "target": "c0991c19a95931f5a1fb7aff94c40366", "evidence": {"same_day": true, "patch_ids": ["b9eaf84f0baf1dfcbda334cf6921c7c2"], "statement_hash": "dc91f6a071dd8a9fa613462ac52d080a59f42dd4940b888412cfb27b4262447e"}}, {"rule": 2, "type": "equivalent", "target": "fac028cab5754384359540890bb37419", "evidence": {"same_day": true, "patch_ids": ["b9eaf84f0baf1dfcbda334cf6921c7c2"], "statement_hash": "dc91f6a071dd8a9fa613462ac52d080a59f42dd4940b888412cfb27b4262447e"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "c0991c19a95931f5a1fb7aff94c40366", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "修复 pg_dump 中当身份序列附加到作为扩展成员的表时可能崩溃的问题", "evidence": {"same_day": true, "patch_ids": ["b9eaf84f0baf1dfcbda334cf6921c7c2"], "statement_hash": "dc91f6a071dd8a9fa613462ac52d080a59f42dd4940b888412cfb27b4262447e"}, "url": "/docs/compare/?release=16.7#16.7-b1ae83939398a4a5", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "477e86c272f9e2c3dbeca3e4c5fcc955", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "修复 pg_dump 中当身份序列附加到作为扩展成员的表时可能崩溃的问题", "evidence": {"same_day": true, "patch_ids": ["b9eaf84f0baf1dfcbda334cf6921c7c2"], "statement_hash": "dc91f6a071dd8a9fa613462ac52d080a59f42dd4940b888412cfb27b4262447e"}, "url": "/docs/compare/?release=15.11#15.11-335b0c9dfbab5ea3", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "8d305380dee5f3d46413d953276a0dad", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "修复 pg_dump 中当身份序列附加到作为扩展成员的表时可能崩溃的问题", "evidence": {"same_day": true, "patch_ids": ["b9eaf84f0baf1dfcbda334cf6921c7c2"], "statement_hash": "dc91f6a071dd8a9fa613462ac52d080a59f42dd4940b888412cfb27b4262447e"}, "url": "/docs/compare/?release=14.16#14.16-4cd4c5bf7ebc45dc", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "fac028cab5754384359540890bb37419", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "修复 pg_dump 中当身份序列附加到作为扩展成员的表时可能崩溃的问题", "evidence": {"same_day": true, "patch_ids": ["b9eaf84f0baf1dfcbda334cf6921c7c2"], "statement_hash": "dc91f6a071dd8a9fa613462ac52d080a59f42dd4940b888412cfb27b4262447e"}, "url": "/docs/compare/?release=13.19#13.19-5c1a4b77b70a416c", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}, {"id": "17.3-36b1dae489af1a17", "cves": [], "html": "修复 pg_restore 处理 zstd 压缩数据时的内存泄漏（Tom Lane）§
\n该泄漏是每次解压缩操作都会发生的，因此在包含许多表或大对象的导出中最为明显。
", "text": "修复 pg_restore 处理 zstd 压缩数据时的内存泄漏（Tom Lane）§ 该泄漏是每次解压缩操作都会发生的，因此在包含许多表或大对象的导出中最为明显。", "title": "修复 pg_restore 处理 zstd 压缩数据时的内存泄漏", "commits": ["04b860198"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "ec17e10801801cf4e0d872fd910b1d466ca1e96fc7118f575f872461ff3f8f38", "section_path": ["变更"], "commit_groups": [["04b860198", "3f0632470", "8cfff087b"]], "identity_text": "Fix memory leak in pg_restore with zstd-compressed data (Tom Lane) The leak was per-decompression-operation, so would be most noticeable with a dump containing many tables or large objects.", "commit_aliases": ["04b860198", "3f0632470", "8cfff087b"], "source_commits": ["04b860198"], "source_entry_id": "17.3/changes/060", "db_id": "adb5998aed434cca9c15b8fd23383274", "patch_ids": ["7eb6902f7552709b0ef56d1ac3fb0aad"], "statement_hash": "4fe197941538b9a34f6e43181edb550ddf8c6a08d9b4475398ab4c5536c2816f", "relations": [{"rule": 2, "type": "equivalent", "target": "cad2e74ea43f4fcfbec539f141f9d823", "evidence": {"same_day": true, "patch_ids": ["7eb6902f7552709b0ef56d1ac3fb0aad"], "statement_hash": "4fe197941538b9a34f6e43181edb550ddf8c6a08d9b4475398ab4c5536c2816f"}}], "version": "17.3", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "cad2e74ea43f4fcfbec539f141f9d823", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "修复 pg_restore 处理 zstd 压缩数据时的内存泄漏", "evidence": {"same_day": true, "patch_ids": ["7eb6902f7552709b0ef56d1ac3fb0aad"], "statement_hash": "4fe197941538b9a34f6e43181edb550ddf8c6a08d9b4475398ab4c5536c2816f"}, "url": "/docs/compare/?release=16.7#16.7-a9fdcc16c16b7460", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}]}, {"id": "17.3-b502208598d05e25", "cves": [], "html": "修复 pg_basebackup 以正确处理 Windows 上超过 2GB 的 pg_wal.tar 文件（Davinder Singh，Thomas Munro）§ §
在 contrib/earthdistance 的 SQL 语言函数声明中使用 SQL 标准函数体（Tom Lane，Ronan Dunklau）§
此变更允许在扩展创建期间解析其对 contrib/cube 的引用，降低了基于搜索路径的失败和可能攻击的风险。
特别是，这恢复了它们在生成列等上下文中的可用性，PostgreSQL v17 出于安全原因限制了这些上下文中的搜索路径。我们收到了由于此原因导致数据库无法升级到 v17 的报告。此补丁包含在 v16 中以提供一个解决方案：事先将 earthdistance 扩展更新到此版本应该可以使升级成功。
检测 contrib/pageinspect 的 SQL 声明与底层共享库之间的版本不匹配（Tomas Vondra）§
此前，这种不匹配在调用 brin_page_items() 时可能导致崩溃。现在则会抛出一条建议更新扩展的错误消息。
在尝试取消 contrib/postgres_fdw 中的远程查询时，如果取消请求看起来没有生效，则会重发数次（Tom Lane）§
这修复了一种竞争条件：我们可能在远程服务器尚未开始处理刚发出的查询前就尝试取消它，从而导致首次取消请求被忽略。
", "text": "在尝试取消 contrib/postgres_fdw 中的远程查询时，如果取消请求看起来没有生效，则会重发数次（Tom Lane）§ 这修复了一种竞争条件：我们可能在远程服务器尚未开始处理刚发出的查询前就尝试取消它，从而导致首次取消请求被忽略。", "title": "在尝试取消 contrib/postgres_fdw 中的远程查询时，如果取消请求看起来没有生效，则会重发数次", "commits": ["89962bfef"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "c6717b137d822966548a56d5d0918c9e79187b4fb6f45e35411f37906f540b98", "section_path": ["变更"], "commit_groups": [["89962bfef", "c431986de"]], "identity_text": "When trying to cancel a remote query in contrib/postgres_fdw, re-issue the cancel request a few times if it didn't seem to do anything (Tom Lane) This fixes a race condition where we might try to cancel a just-sent query before the remote server has started to process it, so that the initial cancel request is ignored.", "commit_aliases": ["89962bfef", "c431986de"], "source_commits": ["89962bfef"], "source_entry_id": "17.3/changes/064", "db_id": "45bfe667a71ddfcc832c55e61a6ffc66", "patch_ids": ["91c4d5272a7535638e11a3b68d306dbd"], "statement_hash": "8978810a56a9bcd108afcb7f46175600307575de6d9b991d0e49040659e2745d", "relations": [], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.3-8a671992c235df32", "cves": [], "html": "更新确定访问 ARM CRC 指令所需编译器开关的配置探测（Tom Lane）§
\n在基线 CPU 目标缺少 CRC 指令的 ARM 平台上，我们需要提供 -march 开关来说服编译器编译此类指令。较新版本的 gcc 会拒绝我们尝试使用的值，导致静默回退到软件 CRC。
修复 meson 构建系统，使其在 Windows 上支持旧版 OpenSSL 库（Darek Slusarczyk）§
\n新增对旧式库名 ssleay32 和 libeay32 的支持。
在使用 meson 的 Windows 构建中，确保所有 libcommon 和 libpgport 函数都被导出（Vladlen Popolitov，Heikki Linnakangas）§ §
\n这修复了扩展的 “unresolved external symbol” 构建错误。
", "text": "在使用 meson 的 Windows 构建中，确保所有 libcommon 和 libpgport 函数都被导出（Vladlen Popolitov，Heikki Linnakangas）§ § 这修复了扩展的 “unresolved external symbol” 构建错误。", "title": "在使用 meson 的 Windows 构建中，确保所有 libcommon 和 libpgport 函数都被导出", "commits": ["c80acbc6f", "d8b0c6411"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "177da14b0fbb7994aaa3d6881ce191668362e5335e2569e9a49f1b2ad19f041e", "section_path": ["变更"], "commit_groups": [["07f902bd7", "643efb18b", "d8b0c6411"], ["2571c1d5c", "4e0d71ff2", "c80acbc6f"]], "identity_text": "In Windows builds using meson, ensure all libcommon and libpgport functions are exported (Vladlen Popolitov, Heikki Linnakangas) This fixes unresolved external symbol build errors for extensions.", "commit_aliases": ["07f902bd7", "2571c1d5c", "4e0d71ff2", "643efb18b", "c80acbc6f", "d8b0c6411"], "source_commits": ["c80acbc6f", "d8b0c6411"], "source_entry_id": "17.3/changes/067", "db_id": "da327ea5a2357f6b7a56dcff1f652dbf", "patch_ids": ["65debd777c59314281870528f7dea135", "b169d5a0d35fa5bc464bb73a0ff399cb"], "statement_hash": "1928d3b1486463c44887b3f92a72c78378a987baeb1989c718feeaa08f8753e9", "relations": [{"rule": 2, "type": "equivalent", "target": "4b26119fdb134955f7779c7a65f8d6d4", "evidence": {"same_day": true, "patch_ids": ["65debd777c59314281870528f7dea135", "b169d5a0d35fa5bc464bb73a0ff399cb"], "statement_hash": "1928d3b1486463c44887b3f92a72c78378a987baeb1989c718feeaa08f8753e9"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "4b26119fdb134955f7779c7a65f8d6d4", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "在使用 meson 的 Windows 构建中，确保所有 libcommon 和 libpgport 函数都被导出", "evidence": {"same_day": true, "patch_ids": ["65debd777c59314281870528f7dea135", "b169d5a0d35fa5bc464bb73a0ff399cb"], "statement_hash": "1928d3b1486463c44887b3f92a72c78378a987baeb1989c718feeaa08f8753e9"}, "url": "/docs/compare/?release=16.7#16.7-60e136bcf536c64e", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}]}, {"id": "17.3-5bf0574e2c4f4693", "cves": [], "html": "修复 meson 配置过程，使其能够在 MSVC 下正确检测 OSSP 的 uuid.h 头文件（Andrew Dunstan）§
使用 meson 构建时，将 pgevent 安装到 pkglibdir 而不是 bindir（Peter Eisentraut）§
这与基于 make 的构建系统和旧的 MSVC 构建系统的行为一致。
", "text": "使用 meson 构建时，将 pgevent 安装到 pkglibdir 而不是 bindir（Peter Eisentraut）§ 这与基于 make 的构建系统和旧的 MSVC 构建系统的行为一致。", "title": "使用 meson 构建时，将 pgevent 安装到 pkglibdir 而不是 bindir", "commits": ["e00c1e249"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "3fb23c52476706ea7b9cbe4ab77989e995f1f57916bad4001cb644f7e3150a0c", "section_path": ["变更"], "commit_groups": [["4ee130c6e", "766b0b40a", "e00c1e249"]], "identity_text": "When building with meson, install pgevent in pkglibdir not bindir (Peter Eisentraut) This matches the behavior of the make-based build system and the old MSVC build system.", "commit_aliases": ["4ee130c6e", "766b0b40a", "e00c1e249"], "source_commits": ["e00c1e249"], "source_entry_id": "17.3/changes/069", "db_id": "bee7fa30399678db283a444722fb509c", "patch_ids": ["a1e0da7f877b2369bacd3ae49ee9a11e"], "statement_hash": "54ba556cda2e41fd738d93e0aaa441935a1429ebf065528d74879655ada50780", "relations": [{"rule": 2, "type": "equivalent", "target": "87581ff0c0fbe8029a5aefd20ca85eca", "evidence": {"same_day": true, "patch_ids": ["a1e0da7f877b2369bacd3ae49ee9a11e"], "statement_hash": "54ba556cda2e41fd738d93e0aaa441935a1429ebf065528d74879655ada50780"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "87581ff0c0fbe8029a5aefd20ca85eca", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "使用 meson 构建时，将 pgevent 安装到 pkglibdir 而不是 bindir", "evidence": {"same_day": true, "patch_ids": ["a1e0da7f877b2369bacd3ae49ee9a11e"], "statement_hash": "54ba556cda2e41fd738d93e0aaa441935a1429ebf065528d74879655ada50780"}, "url": "/docs/compare/?release=16.7#16.7-8303bc83c95e666c", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}]}, {"id": "17.3-2b777acca3f50926", "cves": [], "html": "使用 meson 构建时，将 sepgsql.sql 安装到 share/contrib/ 而不是 share/extension/（Peter Eisentraut）§
这与基于 make 的构建系统的行为一致。
", "text": "使用 meson 构建时，将 sepgsql.sql 安装到 share/contrib/ 而不是 share/extension/（Peter Eisentraut）§ 这与基于 make 的构建系统的行为一致。", "title": "使用 meson 构建时，将 sepgsql.sql 安装到 share/contrib/ 而不是 share/extension/", "commits": ["24c5b73eb"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "5eb5559d5e023a0df446737d368b5d29d7c259ff47bf2fe5ce4884052490f17e", "section_path": ["变更"], "commit_groups": [["02ed3c2bd", "155d6162e", "24c5b73eb"]], "identity_text": "When building with meson, install sepgsql.sql under share/contrib/ not share/extension/ (Peter Eisentraut) This matches what the make-based build system does.", "commit_aliases": ["02ed3c2bd", "155d6162e", "24c5b73eb"], "source_commits": ["24c5b73eb"], "source_entry_id": "17.3/changes/070", "db_id": "8e7ad12fc517c61dc6a91d2b881cb496", "patch_ids": ["4e11fad9a4c5664cf294ef38993f602c"], "statement_hash": "2c092e252cb03be63e1603b863560e7f70047da9a0e836a8fa8d5175f0224c6a", "relations": [{"rule": 2, "type": "equivalent", "target": "47127e8eaea3452c65bdc178df3adc86", "evidence": {"same_day": true, "patch_ids": ["4e11fad9a4c5664cf294ef38993f602c"], "statement_hash": "2c092e252cb03be63e1603b863560e7f70047da9a0e836a8fa8d5175f0224c6a"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "47127e8eaea3452c65bdc178df3adc86", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "使用 meson 构建时，将 sepgsql.sql 安装到 share/contrib/ 而不是 share/extension/", "evidence": {"same_day": true, "patch_ids": ["4e11fad9a4c5664cf294ef38993f602c"], "statement_hash": "2c092e252cb03be63e1603b863560e7f70047da9a0e836a8fa8d5175f0224c6a"}, "url": "/docs/compare/?release=16.7#16.7-2d6261fb725ebb47", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}]}, {"id": "17.3-bf7d1c9ccfa2521e", "cves": [], "html": "更新时区数据文件至 tzdata 2025a 版本，包含巴拉圭的夏令时法律变更以及菲律宾的历史修正（Tom Lane）§
", "text": "更新时区数据文件至 tzdata 2025a 版本，包含巴拉圭的夏令时法律变更以及菲律宾的历史修正（Tom Lane）§", "title": "更新时区数据文件至 tzdata 2025a 版本，包含巴拉圭的夏令时法律变更以及菲律宾的历史修正", "commits": ["e292ba333"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.3/#RELEASE-17-3-CHANGES", "source_hash": "2fc8ad3a3cc5eecdf219d813f7e1dfc2007650aa4295aacb5ca084c8d0ea8ecc", "section_path": ["变更"], "commit_groups": [["20b4819d0", "48bc95d0d", "60c513f8f", "6397819c8", "d62403c51", "e292ba333"]], "identity_text": "Update time zone data files to tzdata release 2025a for DST law changes in Paraguay, plus historical corrections for the Philippines (Tom Lane)", "commit_aliases": ["20b4819d0", "48bc95d0d", "60c513f8f", "6397819c8", "d62403c51", "e292ba333"], "source_commits": ["e292ba333"], "source_entry_id": "17.3/changes/071", "db_id": "142b6f5b8f5412088d8a118b9747bbd1", "patch_ids": ["b96e4bf70e6c7d6fc7f41c80dad551de"], "statement_hash": "5346ed21e02631d4697c45a0336cf64356b252cb09dfea4366d7c5b3f02cc25b", "relations": [{"rule": 2, "type": "equivalent", "target": "96dcfa4106a9d8c891112ee991959a59", "evidence": {"same_day": true, "patch_ids": ["b96e4bf70e6c7d6fc7f41c80dad551de"], "statement_hash": "5346ed21e02631d4697c45a0336cf64356b252cb09dfea4366d7c5b3f02cc25b"}}, {"rule": 2, "type": "equivalent", "target": "b2eef5973920bcf8f3be6ddb2e79db35", "evidence": {"same_day": true, "patch_ids": ["b96e4bf70e6c7d6fc7f41c80dad551de"], "statement_hash": "5346ed21e02631d4697c45a0336cf64356b252cb09dfea4366d7c5b3f02cc25b"}}, {"rule": 2, "type": "equivalent", "target": "c7a079298874b849c2e215248946734d", "evidence": {"same_day": true, "patch_ids": ["b96e4bf70e6c7d6fc7f41c80dad551de"], "statement_hash": "5346ed21e02631d4697c45a0336cf64356b252cb09dfea4366d7c5b3f02cc25b"}}, {"rule": 2, "type": "equivalent", "target": "f6f570a8d6d74874c021872f79b537b9", "evidence": {"same_day": true, "patch_ids": ["b96e4bf70e6c7d6fc7f41c80dad551de"], "statement_hash": "5346ed21e02631d4697c45a0336cf64356b252cb09dfea4366d7c5b3f02cc25b"}}], "version": "17.3", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "96dcfa4106a9d8c891112ee991959a59", "kind": "equivalent", "version": "16.7", "label": "16.7", "title": "更新时区数据文件至 tzdata 2025a 版本，包含巴拉圭的夏令时法律变更以及菲律宾的历史修正", "evidence": {"same_day": true, "patch_ids": ["b96e4bf70e6c7d6fc7f41c80dad551de"], "statement_hash": "5346ed21e02631d4697c45a0336cf64356b252cb09dfea4366d7c5b3f02cc25b"}, "url": "/docs/compare/?release=16.7#16.7-3c5219a3c087cbf0", "source_url": "/docs/release/16.7/#RELEASE-16-7-CHANGES"}, {"db_id": "c7a079298874b849c2e215248946734d", "kind": "equivalent", "version": "15.11", "label": "15.11", "title": "更新时区数据文件至 tzdata 2025a 版本，包含巴拉圭的夏令时法律变更以及菲律宾的历史修正", "evidence": {"same_day": true, "patch_ids": ["b96e4bf70e6c7d6fc7f41c80dad551de"], "statement_hash": "5346ed21e02631d4697c45a0336cf64356b252cb09dfea4366d7c5b3f02cc25b"}, "url": "/docs/compare/?release=15.11#15.11-3a998d6879710842", "source_url": "/docs/release/15.11/#ZH-AUTO-RELEASE-15-SECT2-14"}, {"db_id": "f6f570a8d6d74874c021872f79b537b9", "kind": "equivalent", "version": "14.16", "label": "14.16", "title": "更新时区数据文件至 tzdata 2025a 版本，包含巴拉圭的夏令时法律变更以及菲律宾的历史修正", "evidence": {"same_day": true, "patch_ids": ["b96e4bf70e6c7d6fc7f41c80dad551de"], "statement_hash": "5346ed21e02631d4697c45a0336cf64356b252cb09dfea4366d7c5b3f02cc25b"}, "url": "/docs/compare/?release=14.16#14.16-6c536e8b80eb9696", "source_url": "/docs/release/14.16/#ZH-AUTO-RELEASE-14-SECT2-14"}, {"db_id": "b2eef5973920bcf8f3be6ddb2e79db35", "kind": "equivalent", "version": "13.19", "label": "13.19", "title": "更新时区数据文件至 tzdata 2025a 版本，包含巴拉圭的夏令时法律变更以及菲律宾的历史修正", "evidence": {"same_day": true, "patch_ids": ["b96e4bf70e6c7d6fc7f41c80dad551de"], "statement_hash": "5346ed21e02631d4697c45a0336cf64356b252cb09dfea4366d7c5b3f02cc25b"}, "url": "/docs/compare/?release=13.19#13.19-e9856e484813a85d", "source_url": "/docs/release/13.19/#id-1.11.6.10.6"}]}]}, {"date": "2024-11-21", "build": "17.2", "major": "17", "minor": 2, "manual": "17", "status": "stable", "doc_git": "", "version": "17.2", "eol_date": "2029-11-08", "date_text": "2024-11-21", "supported": true, "manual_url": "/docs/17/release-17-2.html", "source_url": "/docs/release/17.2/", "entry_count": 8, "placeholder": false, "content_hash": "b80b365267f291a371454f83c6e73b6cf5058dbddfe48285d93fbb40f5e7b7f4", "manual_build": "17.11", "source_as_of": "", "changes_count": 8, "doc_loaded_at": "2026-09-26T02:56:35.922301", "migration_html": "对于运行 17.X 的用户，无需执行转储/恢复。
\n不过，如果你是从早于 17.1 的版本升级，请参见第 E.11 节。
", "compatibility_count": 0, "label": "17.2", "status_label": "受支持版本", "eol": "2029-11-08", "age_days": 678, "support_days": 1135, "entries": [{"id": "17.2-21d6cfdc332a4791", "cves": [], "html": "修复与 struct ResultRelInfo 协作的扩展的 ABI 破坏（Tom Lane）§
上周的次版本发布无意中破坏了与 timescaledb 及若干其他扩展的二进制兼容性。现将受影响的结构体恢复到先前大小，以便此类扩展无需重新构建。
", "text": "修复与 struct ResultRelInfo 协作的扩展的 ABI 破坏（Tom Lane）§ 上周的次版本发布无意中破坏了与 timescaledb 及若干其他扩展的二进制兼容性。现将受影响的结构体恢复到先前大小，以便此类扩展无需重新构建。", "title": "修复与 struct ResultRelInfo 协作的扩展的 ABI 破坏", "commits": ["6bfacd368"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.2/#RELEASE-17-2-CHANGES", "source_hash": "873ea5c44787337a288e47c3062d4c858c30dd2e00093c9418693256e15ee3d2", "section_path": ["变更"], "commit_groups": [["099e711b7", "17db248f3", "6bfacd368", "ee33d5847"]], "identity_text": "Repair ABI break for extensions that work with struct ResultRelInfo (Tom Lane) Last week's minor releases unintentionally broke binary compatibility with timescaledb and several other extensions. Restore the affected structure to its previous size, so that such extensions need not be rebuilt.", "commit_aliases": ["099e711b7", "17db248f3", "6bfacd368", "ee33d5847"], "source_commits": ["6bfacd368"], "source_entry_id": "17.2/changes/001", "db_id": "a929df65b7c7dd604ebadc2316aa26ac", "patch_ids": ["612d102f28be68bf35b173df20386d6f"], "statement_hash": "859ff305652623150b34f958dd3fd907284fe1adb5201317f90d73b2a4245848", "relations": [{"rule": 2, "type": "equivalent", "target": "168f409145dd973b0f389e0faa385826", "evidence": {"same_day": true, "patch_ids": ["612d102f28be68bf35b173df20386d6f"], "statement_hash": "859ff305652623150b34f958dd3fd907284fe1adb5201317f90d73b2a4245848"}}, {"rule": 2, "type": "equivalent", "target": "69437a2d1a205badf04c74ff87163e3e", "evidence": {"same_day": true, "patch_ids": ["612d102f28be68bf35b173df20386d6f"], "statement_hash": "859ff305652623150b34f958dd3fd907284fe1adb5201317f90d73b2a4245848"}}, {"rule": 2, "type": "equivalent", "target": "de763be496358f3e7348203940378465", "evidence": {"same_day": true, "patch_ids": ["612d102f28be68bf35b173df20386d6f"], "statement_hash": "859ff305652623150b34f958dd3fd907284fe1adb5201317f90d73b2a4245848"}}], "version": "17.2", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "69437a2d1a205badf04c74ff87163e3e", "kind": "equivalent", "version": "16.6", "label": "16.6", "title": "修复与 struct ResultRelInfo 协作的扩展的 ABI 破坏", "evidence": {"same_day": true, "patch_ids": ["612d102f28be68bf35b173df20386d6f"], "statement_hash": "859ff305652623150b34f958dd3fd907284fe1adb5201317f90d73b2a4245848"}, "url": "/docs/compare/?release=16.6#16.6-21d6cfdc332a4791", "source_url": "/docs/release/16.6/#RELEASE-16-6-CHANGES"}, {"db_id": "168f409145dd973b0f389e0faa385826", "kind": "equivalent", "version": "15.10", "label": "15.10", "title": "修复与 struct ResultRelInfo 协作的扩展的 ABI 破坏", "evidence": {"same_day": true, "patch_ids": ["612d102f28be68bf35b173df20386d6f"], "statement_hash": "859ff305652623150b34f958dd3fd907284fe1adb5201317f90d73b2a4245848"}, "url": "/docs/compare/?release=15.10#15.10-21d6cfdc332a4791", "source_url": "/docs/release/15.10/#ZH-AUTO-RELEASE-15-SECT2-16"}, {"db_id": "de763be496358f3e7348203940378465", "kind": "equivalent", "version": "14.15", "label": "14.15", "title": "修复与 struct ResultRelInfo 协作的扩展的 ABI 破坏", "evidence": {"same_day": true, "patch_ids": ["612d102f28be68bf35b173df20386d6f"], "statement_hash": "859ff305652623150b34f958dd3fd907284fe1adb5201317f90d73b2a4245848"}, "url": "/docs/compare/?release=14.15#14.15-21d6cfdc332a4791", "source_url": "/docs/release/14.15/#ZH-AUTO-RELEASE-14-SECT2-16"}]}, {"id": "17.2-d77293a82e3a14e5", "cves": ["CVE-2024-10978"], "html": "恢复 ALTER {ROLE|DATABASE} SET role 的功能（Tom Lane，Noah Misch）§
针对 CVE-2024-10978 的修复意外导致来自非交互式来源的 role 设置不被应用，包括之前的 ALTER {ROLE|DATABASE} 命令和 PGOPTIONS 环境变量。
修复逻辑复制槽的 restart_lsn 可能后退的情况（Masahiko Sawada）§
之前，重启逻辑复制有时会导致复制槽的重启点被重新计算为一个比 pg_replication_slots 中先前公布值更旧的位置。这是有问题的，因为例如 WAL 文件可能已经根据较新的 restart_lsn 值被删除，在这种情况下复制将无法重启。
避免在 pg_rewind 过程中删除仍然需要的 WAL 文件（Polina Bungina，Alexander Kukushkin）§
\n之前，在不巧的情况下，pg_rewind 可能会从被回退的降级主库中删除重要的 WAL 文件。特别是当这些文件已经被标记为待归档（即其 .ready 文件已创建）但尚未归档时，就会发生这种情况。此时新提升的节点不再拥有这些文件，因为它们已经被回收，但降级节点的恢复可能需要它们。如果 pg_rewind 将它们删除，恢复就不再可能了。
修复与删除共享统计条目相关的竞态条件（Kyotaro Horiguchi，Michael Paquier）§
\n这些错误可能导致统计数据丢失、断言失败或 “can only drop stats once” 错误。
", "text": "修复与删除共享统计条目相关的竞态条件（Kyotaro Horiguchi，Michael Paquier）§ 这些错误可能导致统计数据丢失、断言失败或 “can only drop stats once” 错误。", "title": "修复与删除共享统计条目相关的竞态条件", "commits": ["1d6a03ea4"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.2/#RELEASE-17-2-CHANGES", "source_hash": "769d505e23f87533d640957706be831a9daec8164839c30f97ec07d6876699d3", "section_path": ["变更"], "commit_groups": [["154c5b42a", "1d6a03ea4", "818119afc", "afa20845d"]], "identity_text": "Fix race conditions associated with dropping shared statistics entries (Kyotaro Horiguchi, Michael Paquier) These bugs could lead to loss of statistics data, assertion failures, or can only drop stats once errors.", "commit_aliases": ["154c5b42a", "1d6a03ea4", "818119afc", "afa20845d"], "source_commits": ["1d6a03ea4"], "source_entry_id": "17.2/changes/005", "db_id": "1d18528def1b782960ba34e22414bb1f", "patch_ids": ["0a64ef9d7674c6e0697749352fdaf9fb"], "statement_hash": "f25eb53c8f81ac8eb59f1923e0db374de706c0132aceb01e3c866db1023fb671", "relations": [{"rule": 2, "type": "equivalent", "target": "00720585f872ae63f854331bb55a962b", "evidence": {"same_day": true, "patch_ids": ["0a64ef9d7674c6e0697749352fdaf9fb"], "statement_hash": "f25eb53c8f81ac8eb59f1923e0db374de706c0132aceb01e3c866db1023fb671"}}, {"rule": 2, "type": "equivalent", "target": "0fa7615bea3ddf6bfd82ccaebff2bbd7", "evidence": {"same_day": true, "patch_ids": ["0a64ef9d7674c6e0697749352fdaf9fb"], "statement_hash": "f25eb53c8f81ac8eb59f1923e0db374de706c0132aceb01e3c866db1023fb671"}}], "version": "17.2", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "00720585f872ae63f854331bb55a962b", "kind": "equivalent", "version": "16.6", "label": "16.6", "title": "修复与删除共享统计条目相关的竞态条件", "evidence": {"same_day": true, "patch_ids": ["0a64ef9d7674c6e0697749352fdaf9fb"], "statement_hash": "f25eb53c8f81ac8eb59f1923e0db374de706c0132aceb01e3c866db1023fb671"}, "url": "/docs/compare/?release=16.6#16.6-47157203c08b0395", "source_url": "/docs/release/16.6/#RELEASE-16-6-CHANGES"}, {"db_id": "0fa7615bea3ddf6bfd82ccaebff2bbd7", "kind": "equivalent", "version": "15.10", "label": "15.10", "title": "修复与删除共享统计条目相关的竞态条件", "evidence": {"same_day": true, "patch_ids": ["0a64ef9d7674c6e0697749352fdaf9fb"], "statement_hash": "f25eb53c8f81ac8eb59f1923e0db374de706c0132aceb01e3c866db1023fb671"}, "url": "/docs/compare/?release=15.10#15.10-b26f48ce588203d8", "source_url": "/docs/release/15.10/#ZH-AUTO-RELEASE-15-SECT2-16"}]}, {"id": "17.2-90ea7632563c16a8", "cves": [], "html": "在统计视图中统计 contrib/bloom 索引的索引扫描次数，例如 pg_stat_user_indexes.idx_scan 计数器（Masahiro Ikeda）§
修复在检查索引的 opclass 选项是否已更改时发生的崩溃（Alexander Korotkov）§
\n如果表具有带非默认操作符类选项的索引，某些形式的 ALTER TABLE 会失败。
避免正则表达式解析中由断开的 NFA 子图导致的断言失败（Tom Lane）§
\n此错误在非断言构建版本中似乎没有可见的后果。
", "text": "避免正则表达式解析中由断开的 NFA 子图导致的断言失败（Tom Lane）§ 此错误在非断言构建版本中似乎没有可见的后果。", "title": "避免正则表达式解析中由断开的 NFA 子图导致的断言失败", "commits": ["5f28e6ba7"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.2/#RELEASE-17-2-CHANGES", "source_hash": "33068f2046385c1e45167cf0dbbde6f7239485c5e283df5f41ff663a1c653d50", "section_path": ["变更"], "commit_groups": [["2496c3f6f", "2bdd3b248", "5f28e6ba7", "b6312becc", "b69bdcee9"]], "identity_text": "Avoid assertion failure caused by disconnected NFA sub-graphs in regular expression parsing (Tom Lane) This bug does not appear to have any visible consequences in non-assert builds.", "commit_aliases": ["2496c3f6f", "2bdd3b248", "5f28e6ba7", "b6312becc", "b69bdcee9"], "source_commits": ["5f28e6ba7"], "source_entry_id": "17.2/changes/008", "db_id": "7132e8ee5e563160e4af1338d1453f50", "patch_ids": ["19538ff2c32bf0b4ca538086ddf05ea3"], "statement_hash": "45e3edda123c32ef78cc61b1940f226e0b09d3402295f9f29cab4d764529d004", "relations": [{"rule": 2, "type": "equivalent", "target": "94a032b95e9db1fe83976fb39e718933", "evidence": {"same_day": true, "patch_ids": ["19538ff2c32bf0b4ca538086ddf05ea3"], "statement_hash": "45e3edda123c32ef78cc61b1940f226e0b09d3402295f9f29cab4d764529d004"}}, {"rule": 2, "type": "equivalent", "target": "bf21d683f8d0d96f9d055bb4bef1de43", "evidence": {"same_day": true, "patch_ids": ["19538ff2c32bf0b4ca538086ddf05ea3"], "statement_hash": "45e3edda123c32ef78cc61b1940f226e0b09d3402295f9f29cab4d764529d004"}}, {"rule": 2, "type": "equivalent", "target": "ed482b33005a888ec593b9b1ccf803d9", "evidence": {"same_day": true, "patch_ids": ["19538ff2c32bf0b4ca538086ddf05ea3"], "statement_hash": "45e3edda123c32ef78cc61b1940f226e0b09d3402295f9f29cab4d764529d004"}}], "version": "17.2", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "bf21d683f8d0d96f9d055bb4bef1de43", "kind": "equivalent", "version": "16.6", "label": "16.6", "title": "避免正则表达式解析中由断开的 NFA 子图导致的断言失败", "evidence": {"same_day": true, "patch_ids": ["19538ff2c32bf0b4ca538086ddf05ea3"], "statement_hash": "45e3edda123c32ef78cc61b1940f226e0b09d3402295f9f29cab4d764529d004"}, "url": "/docs/compare/?release=16.6#16.6-2bddeab9fc0ea18f", "source_url": "/docs/release/16.6/#RELEASE-16-6-CHANGES"}, {"db_id": "ed482b33005a888ec593b9b1ccf803d9", "kind": "equivalent", "version": "15.10", "label": "15.10", "title": "避免正则表达式解析中由断开的 NFA 子图导致的断言失败", "evidence": {"same_day": true, "patch_ids": ["19538ff2c32bf0b4ca538086ddf05ea3"], "statement_hash": "45e3edda123c32ef78cc61b1940f226e0b09d3402295f9f29cab4d764529d004"}, "url": "/docs/compare/?release=15.10#15.10-8a351c4062ed4ce2", "source_url": "/docs/release/15.10/#ZH-AUTO-RELEASE-15-SECT2-16"}, {"db_id": "94a032b95e9db1fe83976fb39e718933", "kind": "equivalent", "version": "14.15", "label": "14.15", "title": "避免正则表达式解析中由断开的 NFA 子图导致的断言失败", "evidence": {"same_day": true, "patch_ids": ["19538ff2c32bf0b4ca538086ddf05ea3"], "statement_hash": "45e3edda123c32ef78cc61b1940f226e0b09d3402295f9f29cab4d764529d004"}, "url": "/docs/compare/?release=14.15#14.15-43c204e1b7fb072b", "source_url": "/docs/release/14.15/#ZH-AUTO-RELEASE-14-SECT2-16"}]}]}, {"date": "2024-11-14", "build": "17.1", "major": "17", "minor": 1, "manual": "17", "status": "stable", "doc_git": "", "version": "17.1", "eol_date": "2029-11-08", "date_text": "2024-11-14", "supported": true, "manual_url": "/docs/17/release-17-1.html", "source_url": "/docs/release/17.1/", "entry_count": 41, "placeholder": false, "content_hash": "0400b9df136a324cce62e8a951611860aac823560b48121c58e8c4435dd995aa", "manual_build": "17.11", "source_as_of": "", "changes_count": 41, "doc_loaded_at": "2026-09-26T02:56:35.922301", "migration_html": "对于运行 17.X 的用户，无需执行转储/恢复。
\n不过，如果你曾经从一个引用另一分区表的分区表中分离过某个分区，并且之后没有删除该分区，那么你可能需要修复系统目录和/或数据损坏，详见下文第五条变更记录。
\n此外，在一种不常见的情况下，如果某个数据库的 LC_CTYPE 设置为 C，而 LC_COLLATE 设置为其他 locale，则文本列上的索引应按下文第六条变更记录所述重新建立索引。
确保当 RLS 应用于非顶级表引用时，缓存的执行计划被标记为依赖于调用角色（Nathan Bossart）§
\n如果查询中的 CTE、子查询、子链接、安全调用者视图或强制类型转换投影引用了具有行级安全策略的表，我们忽略了将结果执行计划标记为可能依赖于执行它的角色。这可能导致同一会话中后续的查询执行使用错误的执行计划，然后返回或隐藏本应被隐藏或返回的行。
\nPostgreSQL 项目感谢 Wolfgang Walther 报告此问题。（CVE-2024-10976）
", "text": "确保当 RLS 应用于非顶级表引用时，缓存的执行计划被标记为依赖于调用角色（Nathan Bossart）§ 如果查询中的 CTE、子查询、子链接、安全调用者视图或强制类型转换投影引用了具有行级安全策略的表，我们忽略了将结果执行计划标记为可能依赖于执行它的角色。这可能导致同一会话中后续的查询执行使用错误的执行计划，然后返回或隐藏本应被隐藏或返回的行。 PostgreSQL 项目感谢 Wolfgang Walther 报告此问题。（CVE-2024-10976）", "title": "确保当 RLS 应用于非顶级表引用时，缓存的执行计划被标记为依赖于调用角色", "commits": ["edcda9bb4"], "section": "变更", "category": "security", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "57dabc10d6d81974a93e1fec7bcfbb528d2cdb9b2a97d4af4c5adb3d6c0daa23", "section_path": ["变更"], "commit_groups": [["448525e8a", "4e51030af", "562289460", "6db5ea8de", "952ff31e2", "cd7ab5753", "edcda9bb4"]], "identity_text": "Ensure cached plans are marked as dependent on the calling role when RLS applies to a non-top-level table reference (Nathan Bossart) If a CTE, subquery, sublink, security invoker view, or coercion projection in a query references a table with row-level security policies, we neglected to mark the resulting plan as potentially dependent on which role is executing it. This could lead to later query executions in the same session using the wrong plan, and then returning or hiding rows that should have been hidden or returned instead. The PostgreSQL Project thanks Wolfgang Walther for reporting this problem. (CVE-2024-10976)", "commit_aliases": ["448525e8a", "4e51030af", "562289460", "6db5ea8de", "952ff31e2", "cd7ab5753", "edcda9bb4"], "source_commits": ["edcda9bb4"], "source_entry_id": "17.1/changes/001", "db_id": "903f54d13a35a580860ec5919ffd9391", "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3", "relations": [{"rule": 2, "type": "equivalent", "target": "6cb074d8615f9e4b6de7509ab5409206", "evidence": {"same_day": true, "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3"}}, {"rule": 2, "type": "equivalent", "target": "b35299d8c2b91ca42ad730d56fe1d557", "evidence": {"same_day": true, "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3"}}, {"rule": 2, "type": "equivalent", "target": "d44f16c4afb566a4218e3268550f233b", "evidence": {"same_day": true, "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3"}}, {"rule": 2, "type": "equivalent", "target": "dd2d2a0ef524c238108a866aed2a3928", "evidence": {"same_day": true, "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3"}}, {"rule": 2, "type": "equivalent", "target": "ea98dde20d96595ff5781f5e31b89a94", "evidence": {"same_day": true, "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3"}}], "version": "17.1", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "d44f16c4afb566a4218e3268550f233b", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "确保当 RLS 应用于非顶级表引用时，缓存的执行计划被标记为依赖于调用角色", "evidence": {"same_day": true, "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3"}, "url": "/docs/compare/?release=16.5#16.5-8836d65ec119a87b", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "6cb074d8615f9e4b6de7509ab5409206", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "确保当 RLS 应用于非顶级表引用时，缓存的执行计划被标记为依赖于调用角色", "evidence": {"same_day": true, "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3"}, "url": "/docs/compare/?release=15.9#15.9-0df8f5c6c57017c1", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "b35299d8c2b91ca42ad730d56fe1d557", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "确保当 RLS 应用于非顶级表引用时，缓存的执行计划被标记为依赖于调用角色", "evidence": {"same_day": true, "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3"}, "url": "/docs/compare/?release=14.14#14.14-ef2b342695c66732", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "ea98dde20d96595ff5781f5e31b89a94", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "确保当 RLS 应用于非顶级表引用时，缓存的执行计划被标记为依赖于调用角色", "evidence": {"same_day": true, "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3"}, "url": "/docs/compare/?release=13.17#13.17-262bcda4a82de7e4", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "dd2d2a0ef524c238108a866aed2a3928", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "确保当 RLS 应用于非顶级表引用时，缓存的执行计划被标记为依赖于调用角色", "evidence": {"same_day": true, "patch_ids": ["ca54ff224e161547e3903f7a9428139f"], "statement_hash": "82d6eb24bb8a5aec8698c503aa82a36159755dd2df1cbbbd79a94e884e5c2fa3"}, "url": "/docs/compare/?release=12.21#12.21-024fbe5032a8d0a7", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-1082f03d8cb14619", "cves": ["CVE-2024-10977"], "html": "使 libpq 丢弃在 SSL 或 GSS 协议协商期间收到的错误消息（Jacob Champion）§
\n在加密协商完成之前收到的错误消息可能是由中间人注入的，而不是真正的服务器输出。报告该消息会带来各种安全隐患；例如，该消息可能伪造查询结果，粗心的用户可能会误以为是正确的输出。最好的方案似乎是丢弃这类数据，仅依赖 libpq 自身对连接失败的报告。
\nPostgreSQL 项目感谢 Jacob Champion 报告此问题。（CVE-2024-10977）
", "text": "使 libpq 丢弃在 SSL 或 GSS 协议协商期间收到的错误消息（Jacob Champion）§ 在加密协商完成之前收到的错误消息可能是由中间人注入的，而不是真正的服务器输出。报告该消息会带来各种安全隐患；例如，该消息可能伪造查询结果，粗心的用户可能会误以为是正确的输出。最好的方案似乎是丢弃这类数据，仅依赖 libpq 自身对连接失败的报告。 PostgreSQL 项目感谢 Jacob Champion 报告此问题。（CVE-2024-10977）", "title": "使 libpq 丢弃在 SSL 或 GSS 协议协商期间收到的错误消息", "commits": ["a5cc4c667"], "section": "变更", "category": "security", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "24ea9a1a07d184e01e1e8c0313d2da81b25d7849b5df2968f6160dc583499b2e", "section_path": ["变更"], "commit_groups": [["2a951ef0a", "67d28bd02", "7b49707b7", "a5cc4c667", "bf8835ea9", "d2c3e31c1", "e6c945476"]], "identity_text": "Make libpq discard error messages received during SSL or GSS protocol negotiation (Jacob Champion) An error message received before encryption negotiation is completed might have been injected by a man-in-the-middle, rather than being real server output. Reporting it opens the door to various security hazards; for example, the message might spoof a query result that a careless user could mistake for correct output. The best answer seems to be to discard such data and rely only on libpq's own report of the connection failure. The PostgreSQL Project thanks Jacob Champion for reporting this problem. (CVE-2024-10977)", "commit_aliases": ["2a951ef0a", "67d28bd02", "7b49707b7", "a5cc4c667", "bf8835ea9", "d2c3e31c1", "e6c945476"], "source_commits": ["a5cc4c667"], "source_entry_id": "17.1/changes/002", "db_id": "91332def933a0204d60d03b6aee60a2f", "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e", "relations": [{"rule": 2, "type": "equivalent", "target": "041d5a2ad83eeef120f71cbf6b017715", "evidence": {"same_day": true, "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e"}}, {"rule": 2, "type": "equivalent", "target": "170ef4172dbf8227246b2fd10f547eaf", "evidence": {"same_day": true, "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e"}}, {"rule": 2, "type": "equivalent", "target": "343aad3da37d507acbe87e3c07339848", "evidence": {"same_day": true, "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e"}}, {"rule": 2, "type": "equivalent", "target": "606e86fc061b8305117b462b0fb72f7e", "evidence": {"same_day": true, "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e"}}, {"rule": 2, "type": "equivalent", "target": "f603cc7c23c00c33a7aaf0a8f34e4e09", "evidence": {"same_day": true, "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e"}}], "version": "17.1", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "170ef4172dbf8227246b2fd10f547eaf", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "使 libpq 丢弃在 SSL 或 GSS 协议协商期间收到的错误消息", "evidence": {"same_day": true, "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e"}, "url": "/docs/compare/?release=16.5#16.5-9d380df74be2cafb", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "f603cc7c23c00c33a7aaf0a8f34e4e09", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "使 libpq 丢弃在 SSL 或 GSS 协议协商期间收到的错误消息", "evidence": {"same_day": true, "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e"}, "url": "/docs/compare/?release=15.9#15.9-5728e455ef5ad54b", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "343aad3da37d507acbe87e3c07339848", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "使 libpq 丢弃在 SSL 或 GSS 协议协商期间收到的错误消息", "evidence": {"same_day": true, "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e"}, "url": "/docs/compare/?release=14.14#14.14-8e4bd7f9b172bf1c", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "606e86fc061b8305117b462b0fb72f7e", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "使 libpq 丢弃在 SSL 或 GSS 协议协商期间收到的错误消息", "evidence": {"same_day": true, "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e"}, "url": "/docs/compare/?release=13.17#13.17-6c940adbb9729591", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "041d5a2ad83eeef120f71cbf6b017715", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "使 libpq 丢弃在 SSL 或 GSS 协议协商期间收到的错误消息", "evidence": {"same_day": true, "patch_ids": ["7f0305d2fb23504e1e6db659e7871ef3"], "statement_hash": "2d14a7d8ffe6fb8029b15b61d067c13cf4746fb098542feefffa1d74e35bfa6e"}, "url": "/docs/compare/?release=12.21#12.21-6fc5c9c88c8d9ac9", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-bcd14383964f2685", "cves": ["CVE-2024-10978"], "html": "修复 SET SESSION AUTHORIZATION 与 SET ROLE 之间意外的交互（Tom Lane）§ §
SQL 标准要求 SET SESSION AUTHORIZATION 具有执行 SET ROLE NONE 的副作用。我们对此的实现有缺陷，导致两个设置之间产生了超出预期的交互。值得注意的是，回滚一个执行了 SET SESSION AUTHORIZATION 的事务会将 ROLE 恢复为 NONE，即使之前并非如此，因此有效用户 ID 现在可能与事务之前不同。在函数 SET 子句中临时设置 session_authorization 也有类似的效果。一个相关的错误是，如果并行工作进程检查 current_setting('role')，它会看到 none，即使它应该看到其他值。
PostgreSQL 项目感谢 Tom Lane 报告此问题。（CVE-2024-10978）
", "text": "修复 SET SESSION AUTHORIZATION 与 SET ROLE 之间意外的交互（Tom Lane）§ § SQL 标准要求 SET SESSION AUTHORIZATION 具有执行 SET ROLE NONE 的副作用。我们对此的实现有缺陷，导致两个设置之间产生了超出预期的交互。值得注意的是，回滚一个执行了 SET SESSION AUTHORIZATION 的事务会将 ROLE 恢复为 NONE，即使之前并非如此，因此有效用户 ID 现在可能与事务之前不同。在函数 SET 子句中临时设置 session_authorization 也有类似的效果。一个相关的错误是，如果并行工作进程检查 current_setting('role')，它会看到 none，即使它应该看到其他值。 PostgreSQL 项目感谢 Tom Lane 报告此问题。（CVE-2024-10978）", "title": "修复 SET SESSION AUTHORIZATION 与 SET ROLE 之间意外的交互", "commits": ["cd82afdda", "f4f5d27d8"], "section": "变更", "category": "security", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "9a3bc2da9e1d4811797b08a7406692d4f482a47cdba2da2c62563fe57cdaa136", "section_path": ["变更"], "commit_groups": [["00b94e8e2", "0edad8654", "109a32380", "73c9f91a1", "95f5a5237", "dc7378793", "f4f5d27d8"], ["2a68808e2", "4c9d96f74", "5a2fed911", "76123ded6", "a5d2e6205", "ae340d031", "cd82afdda"]], "identity_text": "Fix unintended interactions between SET SESSION AUTHORIZATION and SET ROLE (Tom Lane) The SQL standard mandates that SET SESSION AUTHORIZATION have a side-effect of doing SET ROLE NONE. Our implementation of that was flawed, creating more interaction between the two settings than intended. Notably, rolling back a transaction that had done SET SESSION AUTHORIZATION would revert ROLE to NONE even if that had not been the previous state, so that the effective user ID might now be different from what it had been before the transaction. Transiently setting session_authorization in a function SET clause had a similar effect. A related bug was that if a parallel worker inspected current_setting('role'), it saw none even when it should see something else. The PostgreSQL Project thanks Tom Lane for reporting this problem. (CVE-2024-10978)", "commit_aliases": ["00b94e8e2", "0edad8654", "109a32380", "2a68808e2", "4c9d96f74", "5a2fed911", "73c9f91a1", "76123ded6", "95f5a5237", "a5d2e6205", "ae340d031", "cd82afdda", "dc7378793", "f4f5d27d8"], "source_commits": ["cd82afdda", "f4f5d27d8"], "source_entry_id": "17.1/changes/003", "db_id": "fcbd66ab269c152eb9da16b5b1eeba9d", "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88", "relations": [{"rule": 2, "type": "equivalent", "target": "604f59cff9d6f5774f9b68abcf08958c", "evidence": {"same_day": true, "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88"}}, {"rule": 2, "type": "equivalent", "target": "97797a7d809da6dc757cde719790fc0c", "evidence": {"same_day": true, "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88"}}, {"rule": 2, "type": "equivalent", "target": "b1a4466d9937d8744821f08d11640f15", "evidence": {"same_day": true, "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88"}}, {"rule": 2, "type": "equivalent", "target": "bc5ed2f456883b22d022a9a61741e828", "evidence": {"same_day": true, "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88"}}, {"rule": 2, "type": "equivalent", "target": "f64aff32abbe75ed4c780fc509e778f6", "evidence": {"same_day": true, "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88"}}], "version": "17.1", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "f64aff32abbe75ed4c780fc509e778f6", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "修复 SET SESSION AUTHORIZATION 与 SET ROLE 之间意外的交互", "evidence": {"same_day": true, "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88"}, "url": "/docs/compare/?release=16.5#16.5-315f7321f2990e19", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "b1a4466d9937d8744821f08d11640f15", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "修复 SET SESSION AUTHORIZATION 与 SET ROLE 之间意外的交互", "evidence": {"same_day": true, "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88"}, "url": "/docs/compare/?release=15.9#15.9-edbb19d6ec7f223e", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "604f59cff9d6f5774f9b68abcf08958c", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "修复 SET SESSION AUTHORIZATION 与 SET ROLE 之间意外的交互", "evidence": {"same_day": true, "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88"}, "url": "/docs/compare/?release=14.14#14.14-4b483cb165d6e486", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "97797a7d809da6dc757cde719790fc0c", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "修复 SET SESSION AUTHORIZATION 与 SET ROLE 之间意外的交互", "evidence": {"same_day": true, "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88"}, "url": "/docs/compare/?release=13.17#13.17-d57adda36139a851", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "bc5ed2f456883b22d022a9a61741e828", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "修复 SET SESSION AUTHORIZATION 与 SET ROLE 之间意外的交互", "evidence": {"same_day": true, "patch_ids": ["0f53d135f12041c1e76d37093ce742db", "eba6518020c128bdd7288f5ccdcffc71"], "statement_hash": "a437824687a1e0387cf26cd2c9b09d3e61606ea0fa5e129b3302117736a6fe88"}, "url": "/docs/compare/?release=12.21#12.21-77f2e83b58681f50", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-17e0d808d28707ff", "cves": ["CVE-2024-10979"], "html": "防止受信任的 PL/Perl 代码更改环境变量（Andrew Dunstan，Noah Misch）§ § §
\n操纵进程环境变量（如 PATH）的能力会给攻击者提供执行任意代码的机会。因此，“受信任的” PL 不应提供这样的能力。为修复 plperl，将 %ENV 替换为一个绑定的 hash，该 hash 会拒绝任何修改尝试并发出警告。不受信任的 plperlu 保留更改环境的能力。
PostgreSQL 项目感谢 Coby Abrams 报告此问题。（CVE-2024-10979）
", "text": "防止受信任的 PL/Perl 代码更改环境变量（Andrew Dunstan，Noah Misch）§ § § 操纵进程环境变量（如 PATH）的能力会给攻击者提供执行任意代码的机会。因此，“受信任的” PL 不应提供这样的能力。为修复 plperl，将 %ENV 替换为一个绑定的 hash，该 hash 会拒绝任何修改尝试并发出警告。不受信任的 plperlu 保留更改环境的能力。 PostgreSQL 项目感谢 Coby Abrams 报告此问题。（CVE-2024-10979）", "title": "防止受信任的 PL/Perl 代码更改环境变量", "commits": ["3ebcfa54d", "4cd4f3b97", "8d19f3fea"], "section": "变更", "category": "security", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "931cc295f5770e69b9a41c6ada3c4514dc5f3381e5f6c8576932b1b6c31ae6fc", "section_path": ["变更"], "commit_groups": [["0bd9560d9", "256e34653", "64df88700", "8d19f3fea", "9fc1c3a02", "c4252c9ef", "c834b375a"], ["168579e23"], ["16ed4f4d0", "1e457468f", "9f97c31c2", "c1fff7b1b", "c335264c9"], ["2ab12d860", "3ebcfa54d", "8fe3e697a", "b7e3a52a8", "d15ec27c9", "e428cd058", "e530835c6"], ["4cd4f3b97", "6bccd7b03", "88269df4d", "a34c33fd2", "b1e58defb", "f89bd92c9"]], "identity_text": "Prevent trusted PL/Perl code from changing environment variables (Andrew Dunstan, Noah Misch) The ability to manipulate process environment variables such as PATH gives an attacker opportunities to execute arbitrary code. Therefore, trusted PLs must not offer the ability to do that. To fix plperl, replace %ENV with a tied hash that rejects any modification attempt with a warning. Untrusted plperlu retains the ability to change the environment. The PostgreSQL Project thanks Coby Abrams for reporting this problem. (CVE-2024-10979)", "commit_aliases": ["0bd9560d9", "168579e23", "16ed4f4d0", "1e457468f", "256e34653", "2ab12d860", "3ebcfa54d", "4cd4f3b97", "64df88700", "6bccd7b03", "88269df4d", "8d19f3fea", "8fe3e697a", "9f97c31c2", "9fc1c3a02", "a34c33fd2", "b1e58defb", "b7e3a52a8", "c1fff7b1b", "c335264c9", "c4252c9ef", "c834b375a", "d15ec27c9", "e428cd058", "e530835c6", "f89bd92c9"], "source_commits": ["168579e23", "3ebcfa54d", "4cd4f3b97", "8d19f3fea", "c335264c9"], "source_entry_id": "17.1/changes/004", "db_id": "88cb0753c619cb8ffb55dd3992fec3ae", "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec", "relations": [{"rule": 2, "type": "equivalent", "target": "0a701592b8a9b3174c5f3918bbef8dd6", "evidence": {"same_day": true, "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec"}}, {"rule": 2, "type": "equivalent", "target": "2066e4f8fce90840b573e98b707266c8", "evidence": {"same_day": true, "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec"}}, {"rule": 2, "type": "equivalent", "target": "48c45a7465e356c96eee7b77e513f0c9", "evidence": {"same_day": true, "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec"}}, {"rule": 2, "type": "equivalent", "target": "e6325045df38d2253c8faef82c16e050", "evidence": {"same_day": true, "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec"}}, {"rule": 2, "type": "equivalent", "target": "e8bdec3e3e6cd8239b40cec431d635ac", "evidence": {"same_day": true, "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec"}}], "version": "17.1", "category_label": "安全相关", "also_in": [], "variants": [], "related_changes": [{"db_id": "e6325045df38d2253c8faef82c16e050", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "防止受信任的 PL/Perl 代码更改环境变量", "evidence": {"same_day": true, "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec"}, "url": "/docs/compare/?release=16.5#16.5-3b4f7138a28e92e1", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "0a701592b8a9b3174c5f3918bbef8dd6", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "防止受信任的 PL/Perl 代码更改环境变量", "evidence": {"same_day": true, "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec"}, "url": "/docs/compare/?release=15.9#15.9-c9b0c46ba6e5aa14", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "48c45a7465e356c96eee7b77e513f0c9", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "防止受信任的 PL/Perl 代码更改环境变量", "evidence": {"same_day": true, "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec"}, "url": "/docs/compare/?release=14.14#14.14-cc2f3258f095a62a", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "e8bdec3e3e6cd8239b40cec431d635ac", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "防止受信任的 PL/Perl 代码更改环境变量", "evidence": {"same_day": true, "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec"}, "url": "/docs/compare/?release=13.17#13.17-458fde2a378dd869", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "2066e4f8fce90840b573e98b707266c8", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "防止受信任的 PL/Perl 代码更改环境变量", "evidence": {"same_day": true, "patch_ids": ["1af95cf54ee9908abe88fa7a3ffd5abe", "3ffa60097fb5097805f3eb797ff822d0", "4b5346a4224ce3743b7a7f567408da6f", "836669172595edcd77e373a3f0fbe3c5", "949df75f7944a4ee7452f9fa31e2ea86"], "statement_hash": "298ced72d35046c9614efe5d933839f66d4cb8e7b59aa240ad80fd1c39e896ec"}, "url": "/docs/compare/?release=12.21#12.21-1e5606f9a5aeeb3a", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-3b34b5efc6680e84", "cves": [], "html": "修复在附加或分离表分区时外键约束的目录状态更新（Jehan-Guillaume de Rorthais，Tender Wang，Álvaro Herrera）§ §
\n如果被引用表是分区表，则独立的引用表与作为分区的引用表需要不同的目录条目。ATTACH/DETACH PARTITION 命令未能正确执行此转换。特别是在 DETACH 之后，现在独立的表将缺少外键强制触发器，这可能导致该表后来包含违反外键约束的行。随后的重新 ATTACH 也可能失败并产生令人意外的错误。
修复方法是对现在独立的表的每个有问题的约束执行 ALTER TABLE DROP CONSTRAINT，然后重新添加该约束。如果重新添加约束失败，说明已经有错误数据混入。需要手动恢复引用表和被引用表之间的一致性，然后重新添加约束。
以下查询可用于识别损坏的约束，并构造重建它们所需的命令：
\nSELECT conrelid::pg_catalog.regclass AS \"constrained table\",\n conname AS constraint,\n confrelid::pg_catalog.regclass AS \"references\",\n pg_catalog.format('ALTER TABLE %s DROP CONSTRAINT %I;',\n conrelid::pg_catalog.regclass, conname) AS \"drop\",\n pg_catalog.format('ALTER TABLE %s ADD CONSTRAINT %I %s;',\n conrelid::pg_catalog.regclass, conname,\n pg_catalog.pg_get_constraintdef(oid)) AS \"add\"\nFROM pg_catalog.pg_constraint c\nWHERE contype = 'f' AND conparentid = 0 AND\n (SELECT count(*) FROM pg_catalog.pg_constraint c2\n WHERE c2.conparentid = c.oid) <>\n ((SELECT count(*) FROM pg_catalog.pg_inherits i\n WHERE (i.inhparent = c.conrelid OR i.inhparent = c.confrelid) AND\n EXISTS (SELECT 1 FROM pg_catalog.pg_partitioned_table\n WHERE partrelid = i.inhparent)) +\n CASE WHEN pg_catalog.pg_partition_root(conrelid) = confrelid THEN\n (SELECT count(*) FROM pg_catalog.pg_partition_tree(confrelid)\n WHERE level = 1)\n ELSE 0 END);\n\n由于一个或多个 ADD CONSTRAINT 步骤可能会失败，应将查询输出保存到文件中，然后尝试执行每个步骤。
修复当 LC_COLLATE 与 LC_CTYPE 不同时，对 C locale 的测试（Jeff Davis）§
当使用 libc 作为默认排序规则提供者时，用于测试排序是否使用了 C locale 的代码，误查了 LC_CTYPE 而不是 LC_COLLATE。在这两个设置相同的典型情况下，这不会造成影响；如果两者都不是 C（也不是其别名 POSIX），同样无影响。不过，如果 LC_CTYPE 是 C，而 LC_COLLATE 是其他 locale，就可能产生错误的查询结果，也可能导致字符串索引损坏。使用这类设置的数据库用户应在安装本次更新后对受影响的索引重新建立索引。反过来，如果 LC_COLLATE 是 C 而 LC_CTYPE 是其他 locale，则会导致性能下降，但不会产生实际错误。
当查询中键列的排序规则与分区键的排序规则不匹配时，不使用分区级连接或分组（Jian He，Webbo Han）§ §
\n这样的执行计划可能产生不正确的结果。
", "text": "当查询中键列的排序规则与分区键的排序规则不匹配时，不使用分区级连接或分组（Jian He，Webbo Han）§ § 这样的执行计划可能产生不正确的结果。", "title": "当查询中键列的排序规则与分区键的排序规则不匹配时，不使用分区级连接或分组", "commits": ["a0cdfc889", "b6484ca95"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "815b22040d7e400a0fac9d44ad9494bbe01fd9dbd76178e4a73abc18bcd5217c", "section_path": ["变更"], "commit_groups": [["054701a2b", "075acdd93", "33040b171", "62df5484f", "9c4757491", "a0cdfc889", "f734b6b4d"], ["0a620659c", "46d9be5ef", "90fe6251c", "96f9b29a3", "b6484ca95", "dd2f8ebee", "ff65f695c"]], "identity_text": "Don't use partitionwise joins or grouping if the query's collation for the key column doesn't match the partition key's collation (Jian He, Webbo Han) Such plans could produce incorrect results.", "commit_aliases": ["054701a2b", "075acdd93", "0a620659c", "33040b171", "46d9be5ef", "62df5484f", "90fe6251c", "96f9b29a3", "9c4757491", "a0cdfc889", "b6484ca95", "dd2f8ebee", "f734b6b4d", "ff65f695c"], "source_commits": ["a0cdfc889", "b6484ca95"], "source_entry_id": "17.1/changes/007", "db_id": "2ef513eca41dc1e5b7f619bb844c48c4", "patch_ids": ["53c85220dd3488287a3c68a4008b4e8d", "77fd1bde27634394090ee891d7579f1e"], "statement_hash": "1eb1116b9e982b95403ab2910d839e7e5699beec39e01affdecbe6a60de4283b", "relations": [{"rule": 2, "type": "equivalent", "target": "627f4d65ab84d4ed8aa805e9a4e5c849", "evidence": {"same_day": true, "patch_ids": ["53c85220dd3488287a3c68a4008b4e8d", "77fd1bde27634394090ee891d7579f1e"], "statement_hash": "1eb1116b9e982b95403ab2910d839e7e5699beec39e01affdecbe6a60de4283b"}}, {"rule": 2, "type": "equivalent", "target": "97084b07a26e28d94fdf228d94460f63", "evidence": {"same_day": true, "patch_ids": ["53c85220dd3488287a3c68a4008b4e8d", "77fd1bde27634394090ee891d7579f1e"], "statement_hash": "1eb1116b9e982b95403ab2910d839e7e5699beec39e01affdecbe6a60de4283b"}}, {"rule": 2, "type": "equivalent", "target": "cf9cca4c2bbd52000591f7989aa5d6a1", "evidence": 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"当查询中键列的排序规则与分区键的排序规则不匹配时，不使用分区级连接或分组", "evidence": {"same_day": true, "patch_ids": ["53c85220dd3488287a3c68a4008b4e8d", "77fd1bde27634394090ee891d7579f1e"], "statement_hash": "1eb1116b9e982b95403ab2910d839e7e5699beec39e01affdecbe6a60de4283b"}, "url": "/docs/compare/?release=12.21#12.21-77ba4c09c5b839fb", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-d4e30d6665cb5227", "cves": [], "html": "避免在将 NOT NULL 列上的 IS NULL 测试转换为常量 FALSE 后发生规划器失败（Richard Guo）§
这个 bug 通常会导致诸如 “variable not found in subplan target lists” 之类的错误。
", "text": "避免在将 NOT NULL 列上的 IS NULL 测试转换为常量 FALSE 后发生规划器失败（Richard Guo）§ 这个 bug 通常会导致诸如 “variable not found in subplan target lists” 之类的错误。", "title": "避免在将 NOT NULL 列上的 IS NULL 测试转换为常量 FALSE 后发生规划器失败", "commits": ["78b1c553b"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "93d0d3626c3185e832d1a7cd02635478fa47918b51b9b9d85925e5e70d78d62b", "section_path": ["变更"], "commit_groups": [["78b1c553b", "f00ab1fd1"]], "identity_text": "Avoid planner failure after converting an IS NULL test on a NOT NULL column to constant FALSE (Richard Guo) This bug typically led to errors such as variable not found in subplan target lists.", "commit_aliases": ["78b1c553b", "f00ab1fd1"], "source_commits": ["78b1c553b"], "source_entry_id": "17.1/changes/008", "db_id": "9578bddbb7e935d64b4386cc63d8ea58", "patch_ids": ["1f5c67259257eb563985c95cefd4227b"], "statement_hash": "cfb184c7b5220b4b75fe06ec23afec25ff101bde0150feb71a3f1b35a2229db0", "relations": [], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.1-be2f094f4975be4b", "cves": [], "html": "避免在内联某个参数包含特定数组相关结构的 SQL 函数时，规划器可能崩溃（Tom Lane、Nathan Bossart）§
", "text": "避免在内联某个参数包含特定数组相关结构的 SQL 函数时，规划器可能崩溃（Tom Lane、Nathan Bossart）§", "title": "避免在内联某个参数包含特定数组相关结构的 SQL 函数时，规划器可能崩溃", "commits": ["a3c4a91f1"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "4cb3d43eb01e480e955a2ce9ade3571e5ddde06a55f12deb8318720b5c4d8447", "section_path": ["变更"], "commit_groups": [["5a4416192", "a3c4a91f1"]], "identity_text": "Avoid possible planner crash while inlining a SQL function whose arguments contain certain array-related constructs (Tom Lane, Nathan Bossart)", "commit_aliases": ["5a4416192", "a3c4a91f1"], "source_commits": ["a3c4a91f1"], "source_entry_id": "17.1/changes/009", "db_id": "fa9e3d00df6e804255bcb518132b84b3", "patch_ids": ["0693218a41f5d4b7394e40047f14556c"], "statement_hash": "6b5a97bd3457df939d7ae1ad5dae5ef0c1d114a1478473bcf717b45983b8887e", "relations": [], "version": "17.1", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.1-696ecfc68f049e9a", "cves": [], "html": "修复 MERGE ... WHEN NOT MATCHED BY SOURCE 动作可能产生错误结果或 “wrong varnullingrels” 规划器错误的问题（Dean Rasheed）§ §
修复当 UNION ALL 成员查询的输出需要排序，且排序列为表达式时，可能出现的 “could not find pathkey item to sort” 错误（Andrei Lepikhov，Tom Lane）§
修复 B-树 ScalarArrayOp 索引扫描中的边界情形问题（Peter Geoghegan）§
\n当带有这类计划的可滚动游标回退到起点后再向前执行时，可能出现错误结果。
", "text": "修复 B-树 ScalarArrayOp 索引扫描中的边界情形问题（Peter Geoghegan）§ 当带有这类计划的可滚动游标回退到起点后再向前执行时，可能出现错误结果。", "title": "修复 B-树 ScalarArrayOp 索引扫描中的边界情形问题", "commits": ["c177726ae"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "40f51979e31108f0eee03ec68d355ca334f183d48cff2a41ce3728b381542344", "section_path": ["变更"], "commit_groups": [["763d65ae2", "c177726ae"]], "identity_text": "Fix edge case in B-tree ScalarArrayOp index scans (Peter Geoghegan) When a scrollable cursor with a plan of this kind was backed up to its starting point and then run forward again, wrong answers were possible.", "commit_aliases": ["763d65ae2", "c177726ae"], "source_commits": ["c177726ae"], "source_entry_id": "17.1/changes/012", "db_id": "f62793c19e87f16340d77f0e790e6ffc", "patch_ids": ["3f3e6d64ca18bb6b95cd337e72f8b9e2"], "statement_hash": "9d9eff9dbb27e64ab89fcc2b3ce0ee86780a82463655651a0431f97679ff1f13", "relations": [], "version": "17.1", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.1-ef0f21203944cfe0", "cves": [], "html": "修复 COPY ( 中的断言失败或令人困惑的错误消息，当 query) TO ...query 被 DO INSTEAD NOTIFY 规则重写时（Tender Wang，Tom Lane）§
修复对 COPY 的 FORCE_NOT_NULL 和 FORCE_NULL 选项的校验（Joel Jacobson）§
某些不正确的用法现在会像预期那样被拒绝。
", "text": "修复对 COPY 的 FORCE_NOT_NULL 和 FORCE_NULL 选项的校验（Joel Jacobson）§ 某些不正确的用法现在会像预期那样被拒绝。", "title": "修复对 COPY 的 FORCE_NOT_NULL 和 FORCE_NULL 选项的校验", "commits": ["c06a4746b"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "b5197605183763e5aa7a4a66c48ee5b9e5263add2fa80622345485c6846f69aa", "section_path": ["变更"], "commit_groups": [["089aac631", "c06a4746b"]], "identity_text": "Fix validation of COPY's FORCE_NOT_NULL and FORCE_NULL options (Joel Jacobson) Some incorrect usages are now rejected as they should be.", "commit_aliases": ["089aac631", "c06a4746b"], "source_commits": ["c06a4746b"], "source_entry_id": "17.1/changes/014", "db_id": "b58bf91e2db49275b56bdf995d90b2f5", "patch_ids": ["e97599279c2bb032d570f9e674182e11"], "statement_hash": "6543408f5835a5b2532448117f144ce5bf4c8c414249bca3bc9c1c7cc5ac4bd4", "relations": [], "version": "17.1", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.1-a67448e1b58abd31", "cves": [], "html": "修复当 json_objectagg() 调用包含 volatile 函数时的服务器崩溃（Amit Langote）§
修复并行哈希连接中倾斜数据的检测（Thomas Munro）§
\n在对哈希连接的内侧进行重新分区（因为某个分区累积了过多元组）之后，我们会检查该分区的所有元组是否都进入了同一个子分区，这表明它们都具有相同的 hash 值，进一步重新分区无法改善情况。此检查在某些情况下出现故障，允许重复进行无效的重新分区，最终导致资源耗尽错误。
", "text": "修复并行哈希连接中倾斜数据的检测（Thomas Munro）§ 在对哈希连接的内侧进行重新分区（因为某个分区累积了过多元组）之后，我们会检查该分区的所有元组是否都进入了同一个子分区，这表明它们都具有相同的 hash 值，进一步重新分区无法改善情况。此检查在某些情况下出现故障，允许重复进行无效的重新分区，最终导致资源耗尽错误。", "title": "修复并行哈希连接中倾斜数据的检测", "commits": ["4ac5d33a8"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "6be654e723aadf0ffdac21342e2b1f405783dff1a3087a70b7e0ca9013dd8f08", "section_path": ["变更"], "commit_groups": [["1831545ca", "20d948994", "45329466f", "4ac5d33a8", "4fa80a6d7", "53edc9485", "98c7c7152"]], "identity_text": "Fix detection of skewed data during parallel hash join (Thomas Munro) After repartitioning the inner side of a hash join because one partition has accumulated too many tuples, we check to see if all the partition's tuples went into the same child partition, which suggests that they all have the same hash value and further repartitioning cannot improve matters. This check malfunctioned in some cases, allowing repeated futile repartitioning which would eventually end in a resource-exhaustion error.", "commit_aliases": ["1831545ca", "20d948994", "45329466f", "4ac5d33a8", "4fa80a6d7", "53edc9485", "98c7c7152"], "source_commits": ["4ac5d33a8"], "source_entry_id": "17.1/changes/016", "db_id": "e30b28541dd86d403967862c42bc08f9", "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca", "relations": [{"rule": 2, "type": "equivalent", "target": "03ee90d315a15e51dce8adcb971d89f1", "evidence": {"same_day": true, "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca"}}, {"rule": 2, "type": "equivalent", "target": "048fdbfa8e9162623b00f1d70e94b6ac", "evidence": {"same_day": true, "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca"}}, {"rule": 2, "type": "equivalent", "target": "a96042f3ea4378e7a4b4b4338d73d449", "evidence": {"same_day": true, "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca"}}, {"rule": 2, "type": "equivalent", "target": "b05be16ba65111ded4a1d3c19fdb9312", "evidence": {"same_day": true, "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca"}}, {"rule": 2, "type": "equivalent", "target": "fa86fc8bc18de09fe710b60de685febf", "evidence": {"same_day": true, "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca"}}], "version": "17.1", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "a96042f3ea4378e7a4b4b4338d73d449", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "修复并行哈希连接中倾斜数据的检测", "evidence": {"same_day": true, "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca"}, "url": "/docs/compare/?release=16.5#16.5-ffd53f421ada5fe4", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "fa86fc8bc18de09fe710b60de685febf", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "修复并行哈希连接中倾斜数据的检测", "evidence": {"same_day": true, "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca"}, "url": "/docs/compare/?release=15.9#15.9-155d262faf162f65", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "b05be16ba65111ded4a1d3c19fdb9312", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "修复并行哈希连接中倾斜数据的检测", "evidence": {"same_day": true, "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca"}, "url": "/docs/compare/?release=14.14#14.14-155d262faf162f65", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "03ee90d315a15e51dce8adcb971d89f1", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "修复并行哈希连接中倾斜数据的检测", "evidence": {"same_day": true, "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca"}, "url": "/docs/compare/?release=13.17#13.17-e6044003af017b6b", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "048fdbfa8e9162623b00f1d70e94b6ac", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "修复并行哈希连接中倾斜数据的检测", "evidence": {"same_day": true, "patch_ids": ["7362d49781c8e327ea7028e1016e585a"], "statement_hash": "fa6804a4a344918b582b6ac7902d741b5ac887f9ad98549ab7d9385fef747aca"}, "url": "/docs/compare/?release=12.21#12.21-73d99a8f643a7855", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-50678eaee787a925", "cves": [], "html": "避免在使用 ALTER DATABASE SET 设置需要基于 search_path 查找的服务器参数时崩溃，例如 default_text_search_config（Jeff Davis）§
避免在分区表上创建新索引时重复查找 opclass 和 collation（Tom Lane）§
\n之所以成问题，主要是因为其中一些查找会在受限的 search_path 下进行，从而导致当 CREATE INDEX 命令引用 pg_catalog 之外的对象时出现意外失败。
此修复还阻止了父分区索引上的注释被复制到子索引。
", "text": "避免在分区表上创建新索引时重复查找 opclass 和 collation（Tom Lane）§ 之所以成问题，主要是因为其中一些查找会在受限的 search_path 下进行，从而导致当 CREATE INDEX 命令引用 pg_catalog 之外的对象时出现意外失败。 此修复还阻止了父分区索引上的注释被复制到子索引。", "title": "避免在分区表上创建新索引时重复查找 opclass 和 collation", "commits": ["fee8cb947"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "e0ced0c04a24d5db32ab1d18cb4357cfcab2dfc34922388bcb5e2ae04ff7ce5f", "section_path": ["变更"], "commit_groups": [["68dfecbef", "fee8cb947"]], "identity_text": "Avoid repeated lookups of opclasses and collations while creating a new index on a partitioned table (Tom Lane) This was problematic mainly because some of the lookups would be done with a restricted search_path, leading to unexpected failures if the CREATE INDEX command referenced objects outside pg_catalog. This fix also prevents comments on the parent partitioned index from being copied to child indexes.", "commit_aliases": ["68dfecbef", "fee8cb947"], "source_commits": ["fee8cb947"], "source_entry_id": "17.1/changes/018", "db_id": "39d1ff67b2247978ff31120b1af8610f", "patch_ids": ["b5a80d8c7d1f95c52db177a0ca9af9b3"], "statement_hash": "4c3a4e12b2e74cb3643a07c3068a3ca331d2ed644820e14740f5b0cc0256b10f", "relations": [], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.1-dc558dc95214284c", "cves": [], "html": "为分区表补上到 CREATE TABLE ... USING 中指定的非内置访问方法的缺失依赖（Michael Paquier）§
当存在依赖于某访问方法的表时，删除该访问方法本应被阻止，但此前并未如此，因而允许后续出现异常行为。注意，此修复只会防止本次更新之后新建的分区表出现这类问题。
", "text": "为分区表补上到 CREATE TABLE ... USING 中指定的非内置访问方法的缺失依赖（Michael Paquier）§ 当存在依赖于某访问方法的表时，删除该访问方法本应被阻止，但此前并未如此，因而允许后续出现异常行为。注意，此修复只会防止本次更新之后新建的分区表出现这类问题。", "title": "为分区表补上到 CREATE TABLE ... USING 中指定的非内置访问方法的缺失依赖", "commits": ["bb584e831"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "78b2fcbdb5aa732914af5e01eae1583b7b62e64e2d91a54f8b48c98ff8f82702", "section_path": ["变更"], "commit_groups": [["49a23441c", "bb584e831"]], "identity_text": "Add missing dependency from a partitioned table to a non-built-in access method specified in CREATE TABLE ... USING (Michael Paquier) Dropping the access method should be blocked when a table exists that depends on it, but it was not, allowing subsequent odd behavior. Note that this fix only prevents problems for partitioned tables created after this update.", "commit_aliases": ["49a23441c", "bb584e831"], "source_commits": ["bb584e831"], "source_entry_id": "17.1/changes/019", "db_id": "362d11804d0cc2d25ae4f459d36b0747", "patch_ids": ["75bccb1b1bad53b6ec3878e48e0e916e"], "statement_hash": "a34ea2ed8a14d2c3ede048f89f5f8652ba65167aa9ebc8f2366ce87ce6f857db", "relations": [], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.1-e5a214ba706d7473", "cves": [], "html": "禁止包含非 ASCII 字符的区域设置名称（Thomas Munro）§
\n这仅在 Windows 上是一个问题，因为其他平台不使用此类区域设置名称。它们存在问题是因为完全不清楚此类名称用什么编码表示（因为区域设置本身定义了要使用的编码）。在最近的 PostgreSQL 版本中，由于对此的混淆，可能会在 Windows 运行时库中发生中止。
\n遇到新错误消息的用户应该使用 Windows Locale Builder 创建一个具有纯 ASCII 名称的重复区域设置，或者考虑使用符合 BCP 47 的区域设置名称，如 tr-TR。
修复提交可串行化事务时的竞态条件（Heikki Linnakangas）§
\n对最近提交的事务的错误处理可能导致断言失败或 “could not access status of transaction” 错误。
", "text": "修复提交可串行化事务时的竞态条件（Heikki Linnakangas）§ 对最近提交的事务的错误处理可能导致断言失败或 “could not access status of transaction” 错误。", "title": "修复提交可串行化事务时的竞态条件", "commits": ["234f6d09e"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "ed7415ad5299a17b209c92c0da2f551552e26324bb19df497afd8008db10a931", "section_path": ["变更"], "commit_groups": [["1a43de5e0", "22665f210", "234f6d09e", "520ec2474", "8e607a5a4", "d97419b85", "e2ec3afeb"]], "identity_text": "Fix race condition in committing a serializable transaction (Heikki Linnakangas) Mis-processing of a recently committed transaction could lead to an assertion failure or a could not access status of transaction error.", "commit_aliases": ["1a43de5e0", "22665f210", "234f6d09e", "520ec2474", "8e607a5a4", "d97419b85", "e2ec3afeb"], "source_commits": ["234f6d09e"], "source_entry_id": "17.1/changes/021", "db_id": "27eb3d253909c90211a31b92e07b5435", "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f", "relations": [{"rule": 2, "type": "equivalent", "target": "2f2fe7df64cf13ea880ead2a8d3d62e9", "evidence": {"same_day": true, "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f"}}, {"rule": 2, "type": "equivalent", "target": "380c69c0cf382608fe08f3d07bad3f89", "evidence": {"same_day": true, "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f"}}, {"rule": 2, "type": "equivalent", "target": "9d7aef7128d747f9da974e84661075b5", "evidence": {"same_day": true, "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f"}}, {"rule": 2, "type": "equivalent", "target": "aa302a2149b51d8fa114ce51bd412401", "evidence": {"same_day": true, "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f"}}, {"rule": 2, "type": "equivalent", "target": "c64ee6e02d4ad8836d4e6457c472a782", "evidence": {"same_day": true, "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f"}}], "version": "17.1", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "380c69c0cf382608fe08f3d07bad3f89", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "修复提交可串行化事务时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f"}, "url": "/docs/compare/?release=16.5#16.5-6e05c8fb8dbf997f", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "2f2fe7df64cf13ea880ead2a8d3d62e9", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "修复提交可串行化事务时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f"}, "url": "/docs/compare/?release=15.9#15.9-7f680ba4913bffb0", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "c64ee6e02d4ad8836d4e6457c472a782", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "修复提交可串行化事务时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f"}, "url": "/docs/compare/?release=14.14#14.14-46c1b12f7598344b", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "9d7aef7128d747f9da974e84661075b5", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "修复提交可串行化事务时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f"}, "url": "/docs/compare/?release=13.17#13.17-931669dbd60ef42e", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "aa302a2149b51d8fa114ce51bd412401", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "修复提交可串行化事务时的竞态条件", "evidence": {"same_day": true, "patch_ids": ["50ee9517aec4d41dcce331b3b6ce522b"], "statement_hash": "b5d2ea04c0310cbcc15167692a36d7b1bf670c6b55bc6b9f9fd87d19f0f9841f"}, "url": "/docs/compare/?release=12.21#12.21-644a55d942e8f80b", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-88bc5224bd702550", "cves": [], "html": "修复 COMMIT PREPARED 中导致产生孤立 2PC 文件的竞态条件（wuchengwen）§
并发的 PREPARE TRANSACTION 可能导致 COMMIT PREPARED 不删除已完成事务的磁盘上两阶段状态文件。虽然没有立即的不良影响，但随后的崩溃恢复可能因 “could not access status of transaction” 而失败，需要手动删除孤立文件才能恢复服务。
避免在 VACUUM FULL 期间跳过无效 toast 索引后发生无效内存访问（Tender Wang）§
在此代码路径中，跟踪尚待重建索引的列表未被正确更新，可能导致后续的断言失败或崩溃。
", "text": "避免在 VACUUM FULL 期间跳过无效 toast 索引后发生无效内存访问（Tender Wang）§ 在此代码路径中，跟踪尚待重建索引的列表未被正确更新，可能导致后续的断言失败或崩溃。", "title": "避免在 VACUUM FULL 期间跳过无效 toast 索引后发生无效内存访问", "commits": ["1532599a8"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "94055d3eb78d4d355878677c2e90ba2dbee03d4b2b3e910d2ea37ae818de3292", "section_path": ["变更"], "commit_groups": [["09620ea09", "1532599a8", "2f33e68a5", "6530b869c", "911eda9f3", "a613edc5c", "afbd3dc7d"]], "identity_text": "Avoid invalid memory accesses after skipping an invalid toast index during VACUUM FULL (Tender Wang) A list tracking yet-to-be-rebuilt indexes was not properly updated in this code path, risking assertion failures or crashes later on.", "commit_aliases": ["09620ea09", "1532599a8", "2f33e68a5", "6530b869c", "911eda9f3", "a613edc5c", "afbd3dc7d"], "source_commits": ["1532599a8"], "source_entry_id": "17.1/changes/023", "db_id": "e25dfeb7ac4ac21c564edacd49428b4d", "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830", "relations": [{"rule": 2, "type": "equivalent", "target": "0b3f94fa1108fab11a7b96dd657b84a7", "evidence": {"same_day": true, "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830"}}, {"rule": 2, "type": "equivalent", "target": "106d9520e3c63f93b40539e2e4af49e0", "evidence": {"same_day": true, "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830"}}, {"rule": 2, "type": "equivalent", "target": "1446a781b5279a1f8b293d6edeb8e669", "evidence": {"same_day": true, "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830"}}, {"rule": 2, "type": "equivalent", "target": "2aaf09439019047f1fc7a22a4ccdb591", "evidence": {"same_day": true, "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830"}}, {"rule": 2, "type": "equivalent", "target": "d36f2ced4ebc024e44bc91d6067e5445", "evidence": {"same_day": true, "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830"}}], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "0b3f94fa1108fab11a7b96dd657b84a7", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "避免在 VACUUM FULL 期间跳过无效 toast 索引后发生无效内存访问", "evidence": {"same_day": true, "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830"}, "url": "/docs/compare/?release=16.5#16.5-c5c6df0edba188ad", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "d36f2ced4ebc024e44bc91d6067e5445", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "避免在 VACUUM FULL 期间跳过无效 toast 索引后发生无效内存访问", "evidence": {"same_day": true, "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830"}, "url": "/docs/compare/?release=15.9#15.9-6b1daddcdf483623", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "1446a781b5279a1f8b293d6edeb8e669", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "避免在 VACUUM FULL 期间跳过无效 toast 索引后发生无效内存访问", "evidence": {"same_day": true, "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830"}, "url": "/docs/compare/?release=14.14#14.14-6b1daddcdf483623", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "106d9520e3c63f93b40539e2e4af49e0", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "避免在 VACUUM FULL 期间跳过无效 toast 索引后发生无效内存访问", "evidence": {"same_day": true, "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830"}, "url": "/docs/compare/?release=13.17#13.17-eb3d25b2db47e7fb", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "2aaf09439019047f1fc7a22a4ccdb591", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "避免在 VACUUM FULL 期间跳过无效 toast 索引后发生无效内存访问", "evidence": {"same_day": true, "patch_ids": ["81efeb0ba74685566da2e5420921a3e7"], "statement_hash": "ec3fe73e0a77635a8340b27cfe913ce27c149d6fee837cbdeb82cdd8cb82e830"}, "url": "/docs/compare/?release=12.21#12.21-8e2f6fd17a9d3c8d", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-4ba0c00b7077008e", "cves": [], "html": "修复“就地”目录更新可能丢失的问题（Noah Misch）§ § § § § § §
\n普通行更新会写入行的新版本以保留事务的回滚能力。然而，某些系统目录更新是有意设计为非事务性的，并通过对行的就地更新来完成。这些补丁修复了可能导致就地更新效果丢失的竞态条件。例如，可能会忘记已将 pg_class.relhasindex 设置为 true，从而阻止新索引的更新，进而导致索引损坏。
在恢复结束时重置系统目录缓存（Noah Misch）§
\n这可以防止因使用系统目录缓存中的陈旧数据，而导致原地系统目录更新丢失的情况。
", "text": "在恢复结束时重置系统目录缓存（Noah Misch）§ 这可以防止因使用系统目录缓存中的陈旧数据，而导致原地系统目录更新丢失的情况。", "title": "在恢复结束时重置系统目录缓存", "commits": ["a4668c99f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "7ba258e6cfd97400e6743c8075e7ab878dab6045d48bf1ba18e646bb4d01c9ff", "section_path": ["变更"], "commit_groups": [["3baf804b7", "67f30c79a", "a4668c99f", "d36b4d8ec", "da9950456", "dca68242a"]], "identity_text": "Reset catalog caches at end of recovery (Noah Misch) This prevents scenarios wherein an in-place catalog update could be lost due to using stale data from a catalog cache.", "commit_aliases": ["3baf804b7", "67f30c79a", "a4668c99f", "d36b4d8ec", "da9950456", "dca68242a"], "source_commits": ["a4668c99f"], "source_entry_id": "17.1/changes/025", "db_id": "f79d9965bc861d1581bcbd5e1c99f922", "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8", "relations": [{"rule": 2, "type": "equivalent", "target": "03f38df95d5ba9b19ea98e287c5941dd", "evidence": {"same_day": true, "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8"}}, {"rule": 2, "type": "equivalent", "target": "0f22f13259952ee505c2fd5ecc2f32c3", "evidence": {"same_day": true, "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8"}}, {"rule": 2, "type": "equivalent", "target": "aa00e5eea147d8a44ee23eca484f52e9", "evidence": {"same_day": true, "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8"}}, {"rule": 2, "type": "equivalent", "target": "cd21f7315c06a0f5655474428e16bbac", "evidence": {"same_day": true, "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8"}}, {"rule": 2, "type": "equivalent", "target": "d884bf75960c7349cddc766f955ef4bf", "evidence": {"same_day": true, "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8"}}], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "aa00e5eea147d8a44ee23eca484f52e9", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "在恢复结束时重置系统目录缓存", "evidence": {"same_day": true, "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8"}, "url": "/docs/compare/?release=16.5#16.5-fdd8a7b553e4e858", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "0f22f13259952ee505c2fd5ecc2f32c3", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "在恢复结束时重置系统目录缓存", "evidence": {"same_day": true, "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8"}, "url": "/docs/compare/?release=15.9#15.9-fdd8a7b553e4e858", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "03f38df95d5ba9b19ea98e287c5941dd", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "在恢复结束时重置系统目录缓存", "evidence": {"same_day": true, "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8"}, "url": "/docs/compare/?release=14.14#14.14-fdd8a7b553e4e858", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "d884bf75960c7349cddc766f955ef4bf", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "在恢复结束时重置目录缓存", "evidence": {"same_day": true, "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8"}, "url": "/docs/compare/?release=13.17#13.17-c138e4e18d01025b", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "cd21f7315c06a0f5655474428e16bbac", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "在恢复结束时重置目录缓存", "evidence": {"same_day": true, "patch_ids": ["d8e905ab86ebcc2061ec15f9561d12f7"], "statement_hash": "4a224b02222ca1034c36288808b35d4c4bbb6cecb363130697849647bca3a4a8"}, "url": "/docs/compare/?release=12.21#12.21-865e40421a2a7155", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-06c66c306e1e689d", "cves": [], "html": "避免在持有中断抑制时使用并行查询（Francesco Degrassi，Noah Misch，Tom Lane）§ §
\n这种情况在正常情况下不会发生，但可以通过测试场景达到，例如使用 SQL 语言函数作为 B-树支持函数（这对于生产使用来说太慢了）。如果确实发生，将导致无限期等待。
", "text": "避免在持有中断抑制时使用并行查询（Francesco Degrassi，Noah Misch，Tom Lane）§ § 这种情况在正常情况下不会发生，但可以通过测试场景达到，例如使用 SQL 语言函数作为 B-树支持函数（这对于生产使用来说太慢了）。如果确实发生，将导致无限期等待。", "title": "避免在持有中断抑制时使用并行查询", "commits": ["2370582ab", "943b65358"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "6b4ef45a4b55a8f40e83d784fa0a6b0c426097ed8d244dbf3a1d1cd6eff53554", "section_path": ["变更"], "commit_groups": [["06424e9a2", "62685876f", "6e39ca6e7", "943b65358", "989ccd26c", "b8df69049", "bcbdb176e"], ["2370582ab", "507b72bd9", "5c698e898", "6f6521de9", "884860bfc", "916b8ae47", "ac04aa84a"]], "identity_text": "Avoid using parallel query while holding off interrupts (Francesco Degrassi, Noah Misch, Tom Lane) This situation cannot arise normally, but it can be reached with test scenarios such as using a SQL-language function as B-tree support (which would be far too slow for production usage). If it did occur it would result in an indefinite wait.", "commit_aliases": ["06424e9a2", "2370582ab", "507b72bd9", "5c698e898", "62685876f", "6e39ca6e7", "6f6521de9", "884860bfc", "916b8ae47", "943b65358", "989ccd26c", "ac04aa84a", "b8df69049", "bcbdb176e"], "source_commits": ["2370582ab", "943b65358"], "source_entry_id": "17.1/changes/026", "db_id": "934d89fc2549c8cbadcbf480ec891705", "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0", "relations": [{"rule": 2, "type": "equivalent", "target": "16437a71fa6942226ce8d635a44db8db", "evidence": {"same_day": true, "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0"}}, {"rule": 2, "type": "equivalent", "target": "24cc8c07aade56116be077eb7b3a6c97", "evidence": {"same_day": true, "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0"}}, {"rule": 2, "type": "equivalent", "target": "9c64f11a2ea10f08b521f113632af16e", "evidence": {"same_day": true, "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0"}}, {"rule": 2, "type": "equivalent", "target": "b3f625cf27046112c2282ec0557cc30f", "evidence": {"same_day": true, "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0"}}, {"rule": 2, "type": "equivalent", "target": "cba213b0d62e0ab3a4bf32c1f5643e83", "evidence": {"same_day": true, "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0"}}], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "b3f625cf27046112c2282ec0557cc30f", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "避免在持有中断抑制时使用并行查询", "evidence": {"same_day": true, "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0"}, "url": "/docs/compare/?release=16.5#16.5-89c96f632f7ca5f9", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "24cc8c07aade56116be077eb7b3a6c97", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "避免在持有中断抑制时使用并行查询", "evidence": {"same_day": true, "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0"}, "url": "/docs/compare/?release=15.9#15.9-e6ab251303d53866", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "cba213b0d62e0ab3a4bf32c1f5643e83", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "避免在持有中断抑制时使用并行查询", "evidence": {"same_day": true, "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0"}, "url": "/docs/compare/?release=14.14#14.14-e6ab251303d53866", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "9c64f11a2ea10f08b521f113632af16e", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "避免在持有中断抑制时使用并行查询", "evidence": {"same_day": true, "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0"}, "url": "/docs/compare/?release=13.17#13.17-a3b4a4de7beb4cf2", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "16437a71fa6942226ce8d635a44db8db", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "避免在持有中断抑制时使用并行查询", "evidence": {"same_day": true, "patch_ids": ["29bb688d4e8208d2082e4f499367d4b5", "d51d4f1f90e0ae612393573f187e5578"], "statement_hash": "adf8c98c039a0012402ced84be2f8e79013c496b233860353a2dbe702b0840c0"}, "url": "/docs/compare/?release=12.21#12.21-62e4bb5238c85fde", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-aef3a8801b632b69", "cves": [], "html": "在 pg_cursors 视图中忽略尚未定义的 Portal（Tom Lane）§
用户定义的检查该视图的代码可能在新游标正在设置时被调用，如果发生这种情况，将导致空指针解引用。通过将该视图定义为排除未完全设置的游标来避免此问题。
", "text": "在 pg_cursors 视图中忽略尚未定义的 Portal（Tom Lane）§ 用户定义的检查该视图的代码可能在新游标正在设置时被调用，如果发生这种情况，将导致空指针解引用。通过将该视图定义为排除未完全设置的游标来避免此问题。", "title": "在 pg_cursors 视图中忽略尚未定义的 Portal", "commits": ["3daeb539a"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "300820f6b8decb7b7b13441fe0d177533ba5ea1cc93d9c648d39998afa88681d", "section_path": ["变更"], "commit_groups": [["3922c9e9f", "3daeb539a", "4a17acd0d", "5c17f5a63", "5de77b609", "aef75219c", "f8d9a9f21"]], "identity_text": "Ignore not-yet-defined Portals in the pg_cursors view (Tom Lane) It is possible for user-defined code that inspects this view to be called while a new cursor is being set up, and if that happens a null pointer dereference would ensue. Avoid the problem by defining the view to exclude incompletely-set-up cursors.", "commit_aliases": ["3922c9e9f", "3daeb539a", "4a17acd0d", "5c17f5a63", "5de77b609", "aef75219c", "f8d9a9f21"], "source_commits": ["3daeb539a"], "source_entry_id": "17.1/changes/027", "db_id": "ab7451fa47782439c78a591f71331c6f", "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8", "relations": [{"rule": 2, "type": "equivalent", "target": "0867725684ed36138f7bb9cafd5966fb", "evidence": {"same_day": true, "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8"}}, {"rule": 2, "type": "equivalent", "target": "40f352ad57f1a44a74ee73d5e8b2ba7a", "evidence": {"same_day": true, "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8"}}, {"rule": 2, "type": "equivalent", "target": "8615a3985a1a6e36d471474894e4ae49", "evidence": {"same_day": true, "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8"}}, {"rule": 2, "type": "equivalent", "target": "b75478fe3e881ec9e4d469c23af9882f", "evidence": {"same_day": true, "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8"}}, {"rule": 2, "type": "equivalent", "target": "d675c60f3cd5aca2145214c45e0e293f", "evidence": {"same_day": true, "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8"}}], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "b75478fe3e881ec9e4d469c23af9882f", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "在 pg_cursors 视图中忽略尚未定义的 Portal", "evidence": {"same_day": true, "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8"}, "url": "/docs/compare/?release=16.5#16.5-c4b555a66d26fe62", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "0867725684ed36138f7bb9cafd5966fb", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "在 pg_cursors 视图中忽略尚未定义的 Portal", "evidence": {"same_day": true, "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8"}, "url": "/docs/compare/?release=15.9#15.9-2c83eaafe3f48038", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "8615a3985a1a6e36d471474894e4ae49", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "在 pg_cursors 视图中忽略尚未定义的 Portal", "evidence": {"same_day": true, "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8"}, "url": "/docs/compare/?release=14.14#14.14-2c83eaafe3f48038", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "40f352ad57f1a44a74ee73d5e8b2ba7a", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "在 pg_cursors 视图中忽略尚未定义的 Portal", "evidence": {"same_day": true, "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8"}, "url": "/docs/compare/?release=13.17#13.17-650fc419fd974de2", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "d675c60f3cd5aca2145214c45e0e293f", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "在 pg_cursors 视图中忽略尚未定义的 Portal", "evidence": {"same_day": true, "patch_ids": ["150c787bf9f6ccaebe4514733bd41ba1"], "statement_hash": "998476f5c947153e08f4173ddb5a0d8d8fef2921423b11177f8d3c0c9eebb8a8"}, "url": "/docs/compare/?release=12.21#12.21-1f7e358387ad1aa5", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-6db7422caf84bc75", "cves": [], "html": "避免在解码涉及插入列默认值的事务时出现 “unexpected table_index_fetch_tuple call during logical decoding” 错误（Takeshi Ideriha，Hou Zhijie）§ §
", "text": "避免在解码涉及插入列默认值的事务时出现 “unexpected table_index_fetch_tuple call during logical decoding” 错误（Takeshi Ideriha，Hou Zhijie）§ §", "title": "避免在解码涉及插入列默认值的事务时出现 “unexpected table_index_fetch_tuple call during logical decoding” 错误", "commits": ["918107759", "c4b8a916f"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "de9482f495a79e0185eeea1571ef0bfb2eedb6aa869e0106621d693ea2482e9d", "section_path": ["变更"], "commit_groups": [["022564f60", "0f0e253db", "8175a7d11", "918107759", "efe706e27"], ["0c40d9019", "581092c90", "5ce0dcc99", "c4b8a916f", "d759c1a0b"]], "identity_text": "Avoid unexpected table_index_fetch_tuple call during logical decoding error while decoding a transaction involving insertion of a column default value (Takeshi Ideriha, Hou Zhijie)", "commit_aliases": ["022564f60", "0c40d9019", "0f0e253db", "581092c90", "5ce0dcc99", "8175a7d11", "918107759", "c4b8a916f", "d759c1a0b", "efe706e27"], "source_commits": ["918107759", "c4b8a916f"], "source_entry_id": "17.1/changes/028", "db_id": "b62f7643cc5d01e344e8f37a74db8520", "patch_ids": ["17680df5fc978450002a0ce50fc01a30", "2560fa709d0f1efe9d534299d5934343"], "statement_hash": "c585cdcb1deed9634ef163f8470c591b09c31ea993a74a556e8e975a352c5f7f", "relations": [{"rule": 2, "type": "equivalent", "target": "1d388d851aff311941271b2ba3e01b81", "evidence": {"same_day": true, "patch_ids": ["17680df5fc978450002a0ce50fc01a30", "2560fa709d0f1efe9d534299d5934343"], "statement_hash": "c585cdcb1deed9634ef163f8470c591b09c31ea993a74a556e8e975a352c5f7f"}}, {"rule": 2, "type": "equivalent", "target": "24d7fa327affe5b98a3617a4c8a6a445", "evidence": {"same_day": true, "patch_ids": ["17680df5fc978450002a0ce50fc01a30", "2560fa709d0f1efe9d534299d5934343"], "statement_hash": "c585cdcb1deed9634ef163f8470c591b09c31ea993a74a556e8e975a352c5f7f"}}, {"rule": 2, "type": "equivalent", "target": "d255bb5aa0be022d4f093ef7f8ad596c", "evidence": {"same_day": true, "patch_ids": ["17680df5fc978450002a0ce50fc01a30", "2560fa709d0f1efe9d534299d5934343"], "statement_hash": "c585cdcb1deed9634ef163f8470c591b09c31ea993a74a556e8e975a352c5f7f"}}], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "1d388d851aff311941271b2ba3e01b81", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "避免在解码涉及插入列默认值的事务时出现 “unexpected table_index_fetch_tuple call during logical decoding” 错误", "evidence": {"same_day": true, "patch_ids": ["17680df5fc978450002a0ce50fc01a30", "2560fa709d0f1efe9d534299d5934343"], "statement_hash": "c585cdcb1deed9634ef163f8470c591b09c31ea993a74a556e8e975a352c5f7f"}, "url": "/docs/compare/?release=16.5#16.5-b5adaeb0b0bfabbd", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "24d7fa327affe5b98a3617a4c8a6a445", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "避免在解码涉及插入列默认值的事务时出现 “unexpected table_index_fetch_tuple call during logical decoding” 错误", "evidence": {"same_day": true, "patch_ids": ["17680df5fc978450002a0ce50fc01a30", "2560fa709d0f1efe9d534299d5934343"], "statement_hash": "c585cdcb1deed9634ef163f8470c591b09c31ea993a74a556e8e975a352c5f7f"}, "url": "/docs/compare/?release=15.9#15.9-0bc695e76545b914", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "d255bb5aa0be022d4f093ef7f8ad596c", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "避免在解码涉及插入列默认值的事务时出现 “unexpected table_index_fetch_tuple call during logical decoding” 错误", "evidence": {"same_day": true, "patch_ids": ["17680df5fc978450002a0ce50fc01a30", "2560fa709d0f1efe9d534299d5934343"], "statement_hash": "c585cdcb1deed9634ef163f8470c591b09c31ea993a74a556e8e975a352c5f7f"}, "url": "/docs/compare/?release=14.14#14.14-1900e3e9cc3eab4c", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}]}, {"id": "17.1-d43fbbbbd1a290af", "cves": [], "html": "减少逻辑解码的内存消耗（Masahiko Sawada）§
\n使用较小的默认块大小来存储逻辑复制期间接收的元组数据。这减少了内存浪费，据报告在处理长时间运行的事务时内存浪费会很严重，甚至导致内存不足错误。
", "text": "减少逻辑解码的内存消耗（Masahiko Sawada）§ 使用较小的默认块大小来存储逻辑复制期间接收的元组数据。这减少了内存浪费，据报告在处理长时间运行的事务时内存浪费会很严重，甚至导致内存不足错误。", "title": "减少逻辑解码的内存消耗", "commits": ["eef9cc4dc"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "daa4a5373613eb58d0637708f427bf6031706e42009322b5f0fd8c22a07e91f7", "section_path": ["变更"], "commit_groups": [["05e982cdc", "1b9b6cc34", "4a675f318", "53fa68b3b", "5c1ed0a51", "cb988b04d", "eef9cc4dc"]], "identity_text": "Reduce memory consumption of logical decoding (Masahiko Sawada) Use a smaller default block size to store tuple data received during logical replication. This reduces memory wastage, which has been reported to be severe while processing long-running transactions, even leading to out-of-memory failures.", "commit_aliases": ["05e982cdc", "1b9b6cc34", "4a675f318", "53fa68b3b", "5c1ed0a51", "cb988b04d", "eef9cc4dc"], "source_commits": ["eef9cc4dc"], "source_entry_id": "17.1/changes/029", "db_id": "97c3269bffd0c820b06905fbe2d464f9", "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690", "relations": [{"rule": 2, "type": "equivalent", "target": "31bd9403607ae022bbb2521df351cbfc", "evidence": {"same_day": true, "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690"}}, {"rule": 2, "type": "equivalent", "target": "3d9fd2ba6502c820c1ac0c749da6c3d2", "evidence": {"same_day": true, "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690"}}, {"rule": 2, "type": "equivalent", "target": "4727ddf86fcb969c81cd421d0cdb58de", "evidence": {"same_day": true, "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690"}}, {"rule": 2, "type": "equivalent", "target": "9bf3080cc388d1bf67d4b4ef7f8fa15d", "evidence": {"same_day": true, "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690"}}, {"rule": 2, "type": "equivalent", "target": "a4f89dcd882799f19e8888f9472f9d26", "evidence": {"same_day": true, "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690"}}], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "3d9fd2ba6502c820c1ac0c749da6c3d2", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "减少逻辑解码的内存消耗", "evidence": {"same_day": true, "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690"}, "url": "/docs/compare/?release=16.5#16.5-196b5d37b1ff6140", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "4727ddf86fcb969c81cd421d0cdb58de", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "减少逻辑解码的内存消耗", "evidence": {"same_day": true, "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690"}, "url": "/docs/compare/?release=15.9#15.9-6255a3cff82754f5", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "9bf3080cc388d1bf67d4b4ef7f8fa15d", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "减少逻辑解码的内存消耗", "evidence": {"same_day": true, "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690"}, "url": "/docs/compare/?release=14.14#14.14-6255a3cff82754f5", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "31bd9403607ae022bbb2521df351cbfc", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "减少逻辑解码的内存消耗", "evidence": {"same_day": true, "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690"}, "url": "/docs/compare/?release=13.17#13.17-f2d64b8488ba0701", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "a4f89dcd882799f19e8888f9472f9d26", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "减少逻辑解码的内存消耗", "evidence": {"same_day": true, "patch_ids": ["473ac57f52486f7e2341aa56eec194c2"], "statement_hash": "41677895da3ee075c9b726464616a279de0b41105d90638c0e57718cefefc690"}, "url": "/docs/compare/?release=12.21#12.21-4155de347ff97daf", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-42a6ede2406a0663", "cves": [], "html": "修复当 CALL 位于 PL/pgSQL 的 EXCEPTION 块中时，从 CALL 语句参数列表中调用的稳定函数的行为（Tom Lane）§
与我们之前季度发布中的类似修复一样，这种情况允许此类函数被传递错误的快照，导致它们看到自外部事务开始以来修改的行的过时值。
", "text": "修复当 CALL 位于 PL/pgSQL 的 EXCEPTION 块中时，从 CALL 语句参数列表中调用的稳定函数的行为（Tom Lane）§ 与我们之前季度发布中的类似修复一样，这种情况允许此类函数被传递错误的快照，导致它们看到自外部事务开始以来修改的行的过时值。", "title": "修复当 CALL 位于 PL/pgSQL 的 EXCEPTION 块中时，从 CALL 语句参数列表中调用的稳定函数的行为", "commits": ["b5eef7539"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "ea4d614c565838f06c30f301a64b548232d63f75e5c9d58ca6c4b7d6ad87a6c5", "section_path": ["变更"], "commit_groups": [["0d83ced3c", "25d639eea", "ab13c46ff", "b35231989", "b5eef7539", "c96de42c4", "cf1443d67"]], "identity_text": "Fix behavior of stable functions called from a CALL statement's argument list, when the CALL is within a PL/pgSQL EXCEPTION block (Tom Lane) As with a similar fix in our previous quarterly releases, this case allowed such functions to be passed the wrong snapshot, causing them to see stale values of rows modified since the start of the outer transaction.", "commit_aliases": ["0d83ced3c", "25d639eea", "ab13c46ff", 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"87a8d9c87ab798ec77011d823d44a15cc22322eb4a68938b54bef8818a6709c9"}, "url": "/docs/compare/?release=12.21#12.21-2c76105ecb91906f", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-a922aa3daef9edf6", "cves": [], "html": "以与其他整数值选项相同的方式解析 libpq 的 keepalives 连接选项（Yuto Sasaki）§
此处使用的代码拒绝选项值中的尾部空白，与其他情况不同。这在 ecpg 的使用中被证明是有问题的。
", "text": "以与其他整数值选项相同的方式解析 libpq 的 keepalives 连接选项（Yuto Sasaki）§ 此处使用的代码拒绝选项值中的尾部空白，与其他情况不同。这在 ecpg 的使用中被证明是有问题的。", "title": "以与其他整数值选项相同的方式解析 libpq 的 keepalives 连接选项", "commits": ["c7a201053"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "466610b847ee0500a0c5ed519cae44df0da376d2d53b2e543d03af0015230038", "section_path": ["变更"], "commit_groups": [["2120eda94", "47d8a15de", "65f431aff", "920d51979", "bb8c89dbc", "c7a201053", "e7af9b52f"]], "identity_text": "Parse libpq's keepalives connection option in the same way as other integer-valued options (Yuto Sasaki) The coding used here rejected trailing whitespace in the option value, unlike other cases. This turns out to be problematic in ecpg's usage, for example.", "commit_aliases": ["2120eda94", "47d8a15de", "65f431aff", "920d51979", "bb8c89dbc", "c7a201053", "e7af9b52f"], "source_commits": ["c7a201053"], "source_entry_id": "17.1/changes/031", "db_id": "7e09a91933f87c4ae53f0fb08ec6ceee", "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946", "relations": [{"rule": 2, "type": "equivalent", "target": "727c393e1ef5548b5eeebdcd27d10beb", "evidence": {"same_day": true, "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946"}}, {"rule": 2, "type": "equivalent", "target": "9bc5dfea58bdf41e6947b117f85b50b7", "evidence": {"same_day": true, "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946"}}, {"rule": 2, "type": "equivalent", "target": "b1abc23dad8d1bb9fecf44d14b4d8519", "evidence": {"same_day": true, "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946"}}, {"rule": 2, "type": "equivalent", "target": "d8a0a55bc2ad3a1eeb862bcaaf0da1c6", "evidence": {"same_day": true, "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946"}}, {"rule": 2, "type": "equivalent", "target": "f43516cc9cb41aef226fbd6ec1a2178e", "evidence": {"same_day": true, "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946"}}], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": [{"db_id": "f43516cc9cb41aef226fbd6ec1a2178e", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "以与其他整数值选项相同的方式解析 libpq 的 keepalives 连接选项", "evidence": {"same_day": true, "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946"}, "url": "/docs/compare/?release=16.5#16.5-421b9f7051ea9b30", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "b1abc23dad8d1bb9fecf44d14b4d8519", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "以与其他整数值选项相同的方式解析 libpq 的 keepalives 连接选项", "evidence": {"same_day": true, "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946"}, "url": "/docs/compare/?release=15.9#15.9-11149b752f003764", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "727c393e1ef5548b5eeebdcd27d10beb", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "以与其他整数值选项相同的方式解析 libpq 的 keepalives 连接选项", "evidence": {"same_day": true, "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946"}, "url": "/docs/compare/?release=14.14#14.14-11149b752f003764", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "9bc5dfea58bdf41e6947b117f85b50b7", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "以与其他整数值选项相同的方式解析 libpq 的 keepalives 连接选项", "evidence": {"same_day": true, "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946"}, "url": "/docs/compare/?release=13.17#13.17-61d7b37fac36face", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "d8a0a55bc2ad3a1eeb862bcaaf0da1c6", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "以与其他整数值选项相同的方式解析 libpq 的 keepalives 连接选项", "evidence": {"same_day": true, "patch_ids": ["2465fb0d4f04066f288d72fdd4794d59"], "statement_hash": "a4d5a5b5497f1afbbc05c01b4425859a1934a91bc6ee484bfab9a95cf7fd1946"}, "url": "/docs/compare/?release=12.21#12.21-908e622976bf6b0d", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-529ff7381233cffe", "cves": [], "html": "修复 ecpglib 中解析不正确日期时间输入时的越界读取（Bruce Momjian，Pavel Nekrasov）§
\n有可能试图读取常量数组起始位置之前的位置。不过实际影响似乎很小。
", "text": "修复 ecpglib 中解析不正确日期时间输入时的越界读取（Bruce Momjian，Pavel Nekrasov）§ 有可能试图读取常量数组起始位置之前的位置。不过实际影响似乎很小。", "title": "修复 ecpglib 中解析不正确日期时间输入时的越界读取", "commits": ["2c37cb26f"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "1e6849bb5e89cfb168245b8ffe9b0d9a4a99d95c6f86ffb1f3ac5b319055bd35", "section_path": ["变更"], "commit_groups": [["2c37cb26f", "335501fb2", "9a51d4af1", "9ecfd8a48", "a0bff38d1", "a1e613b81", "fcafbaadf"]], "identity_text": "In ecpglib, fix out-of-bounds read when parsing incorrect datetime input (Bruce Momjian, Pavel Nekrasov) It was possible to try to read the location just before the start of a constant array. Real-world consequences seem minimal, though.", "commit_aliases": ["2c37cb26f", "335501fb2", "9a51d4af1", "9ecfd8a48", "a0bff38d1", "a1e613b81", "fcafbaadf"], "source_commits": ["2c37cb26f"], "source_entry_id": "17.1/changes/032", "db_id": "1e77eaf900773e6236b6ffb21cd7fc1b", "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1", "relations": [{"rule": 2, "type": "equivalent", "target": "0e0f03b7d096ceb8efb241246cfdfc73", "evidence": {"same_day": true, "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1"}}, {"rule": 2, "type": "equivalent", "target": "3e8175be0a09cac5e3bff6077bbc630c", "evidence": {"same_day": true, "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1"}}, {"rule": 2, "type": "equivalent", "target": "7f2e5e6d89138f85f6e1120a399ebc31", "evidence": {"same_day": true, "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1"}}, {"rule": 2, "type": "equivalent", "target": "80eee80256c0e6b71e65aa9e92670dff", "evidence": {"same_day": true, "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1"}}, {"rule": 2, "type": "equivalent", "target": "e34de0e447f0c8752a64af2e4886b995", "evidence": {"same_day": true, "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1"}}], "version": "17.1", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "e34de0e447f0c8752a64af2e4886b995", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "修复 ecpglib 中解析不正确日期时间输入时的越界读取", "evidence": {"same_day": true, "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1"}, "url": "/docs/compare/?release=16.5#16.5-21e8b24e87f4a12e", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "3e8175be0a09cac5e3bff6077bbc630c", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "修复 ecpglib 中解析不正确日期时间输入时的越界读取", "evidence": {"same_day": true, "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1"}, "url": "/docs/compare/?release=15.9#15.9-f6611c4aafbac4c8", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "7f2e5e6d89138f85f6e1120a399ebc31", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "修复 ecpglib 中解析不正确日期时间输入时的越界读取", "evidence": {"same_day": true, "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1"}, "url": "/docs/compare/?release=14.14#14.14-f6611c4aafbac4c8", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "80eee80256c0e6b71e65aa9e92670dff", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "修复 ecpglib 中解析不正确日期时间输入时的越界读取", "evidence": {"same_day": true, "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1"}, "url": "/docs/compare/?release=13.17#13.17-b43cbde21c10350a", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "0e0f03b7d096ceb8efb241246cfdfc73", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "修复 ecpglib 中解析不正确日期时间输入时的越界读取", "evidence": {"same_day": true, "patch_ids": ["6d12442b6d9d80d7f2923a3854691932"], "statement_hash": "fd725ea9d4ad0f110ed972492b2c7c4b3e8b7f15383cdca60a5609f422c83ea1"}, "url": "/docs/compare/?release=12.21#12.21-0da18d838f26abf4", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-de8106eb19abf759", "cves": [], "html": "修复 psql 的 describe 命令，使其重新能够与 9.4 之前的服务器协同工作（Tom Lane）§
\n由于使用了这些旧版本中不存在的函数，涉及显示 ACL（权限）列的命令在非常旧的 PostgreSQL 服务器上会失败。
", "text": "修复 psql 的 describe 命令，使其重新能够与 9.4 之前的服务器协同工作（Tom Lane）§ 由于使用了这些旧版本中不存在的函数，涉及显示 ACL（权限）列的命令在非常旧的 PostgreSQL 服务器上会失败。", "title": "修复 psql 的 describe 命令，使其重新能够与 9.4 之前的服务器协同工作", "commits": ["923a71584"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "6c1bb6ec881af8691713c77202241bb9a00a94eefa0ebf50dd81df680bde313f", "section_path": ["变更"], "commit_groups": [["1591b38d1", "923a71584"]], "identity_text": "Fix psql's describe commands to again work with pre-9.4 servers (Tom Lane) Commands involving display of an ACL (permissions) column failed with very old PostgreSQL servers, due to use of a function not present in those versions.", "commit_aliases": ["1591b38d1", "923a71584"], "source_commits": ["923a71584"], "source_entry_id": "17.1/changes/033", "db_id": "18f1350f2daacc37dba5788da5d52ea3", "patch_ids": ["5091e2d362bd6f12dab65d3855536871"], "statement_hash": "ee4d4b36714bf1524f0df827572c249ef13210a79bb77d83abe6fbc47c8869d8", "relations": [], "version": "17.1", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.1-94b3e497adba1b91", "cves": [], "html": "避免在 psql 的 \\watch 命令中指定小于 1ms 的间隔时挂起（Andrey Borodin，Michael Paquier）§
改为将其视为零间隔（执行之间不等待）。
", "text": "避免在 psql 的 \\watch 命令中指定小于 1ms 的间隔时挂起（Andrey Borodin，Michael Paquier）§ 改为将其视为零间隔（执行之间不等待）。", "title": "避免在 psql 的 \\watch 命令中指定小于 1ms 的间隔时挂起", "commits": ["8a6170860"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "9dce8c1225d8d55a2bff62d573ccd5f27968ea1a6a4c5606cfb7e434a90063dd", "section_path": ["变更"], "commit_groups": [["6331972c7", "8a6170860", "9f34cae14"]], "identity_text": "Avoid hanging if an interval less than 1ms is specified in psql's \\watch command (Andrey Borodin, Michael Paquier) Instead, treat this the same as an interval of zero (no wait between executions).", "commit_aliases": ["6331972c7", "8a6170860", "9f34cae14"], "source_commits": ["8a6170860"], "source_entry_id": "17.1/changes/034", "db_id": "81f0bb9d2627ef251bb85efb33a2792f", "patch_ids": ["57069cd5dc4bd4cfc5c1f93e2eff4716"], "statement_hash": "98ed9ab3898440c27f59902a8407246d323c97de1573ce6501db024518a584db", "relations": [{"rule": 2, "type": "equivalent", "target": "ec490d72a0dc9300aa45048145f5399b", "evidence": {"same_day": true, "patch_ids": ["57069cd5dc4bd4cfc5c1f93e2eff4716"], "statement_hash": "98ed9ab3898440c27f59902a8407246d323c97de1573ce6501db024518a584db"}}], "version": "17.1", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "ec490d72a0dc9300aa45048145f5399b", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "避免在 psql 的 \\watch 命令中指定小于 1ms 的间隔时挂起", "evidence": {"same_day": true, "patch_ids": ["57069cd5dc4bd4cfc5c1f93e2eff4716"], "statement_hash": "98ed9ab3898440c27f59902a8407246d323c97de1573ce6501db024518a584db"}, "url": "/docs/compare/?release=16.5#16.5-d9984a51a186e26b", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}]}, {"id": "17.1-7a8e1055559cf847", "cves": [], "html": "修复无法在 ~/.pgpass 中找到复制密码的问题（Tom Lane）§
如果未提供 -d 或 --dbname 开关，pg_basebackup 和 pg_receivewal 就无法匹配 ~/.pgpass 中数据库名字段为 replication 的条目，从而导致意外弹出密码提示。
在 pg_combinebackup 中，如果本应包含完整备份的目录里出现增量备份文件，则抛出错误（Robert Haas）§
", "text": "在 pg_combinebackup 中，如果本应包含完整备份的目录里出现增量备份文件，则抛出错误（Robert Haas）§", "title": "在 pg_combinebackup 中，如果本应包含完整备份的目录里出现增量备份文件，则抛出错误", "commits": ["e36711442"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "3701101076b75687ed3886a6a48e8c6ec4ebfc1dcdfa4dd66033b6a0c3aefc85", "section_path": ["变更"], "commit_groups": [["0b1765d95", "e36711442"]], "identity_text": "In pg_combinebackup, throw an error if an incremental backup file is present in a directory that is supposed to contain a full backup (Robert Haas)", "commit_aliases": ["0b1765d95", "e36711442"], "source_commits": ["e36711442"], "source_entry_id": "17.1/changes/036", "db_id": "7b66882fdff8e9689ab770c45a2a8383", "patch_ids": ["b06704497ba9502d2beaac9514f6ad24"], "statement_hash": "fe31378edbf22df13099150e2a056c82c32224a1599d929e0abb32030810f106", "relations": [], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.1-92ce2ab5b79442b8", "cves": [], "html": "在 pg_combinebackup 中，不要构造包含双斜杠的文件名（Robert Haas）§
\n这不会造成功能性问题，但双斜杠会出现在错误消息中，从而引起混淆。
", "text": "在 pg_combinebackup 中，不要构造包含双斜杠的文件名（Robert Haas）§ 这不会造成功能性问题，但双斜杠会出现在错误消息中，从而引起混淆。", "title": "在 pg_combinebackup 中，不要构造包含双斜杠的文件名", "commits": ["0d635b615"], "section": "变更", "category": "improvement", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "46fb8df574a176e1cc2da651c0adcd4cb5300414a6bdd50db1984e855d8f03e1", "section_path": ["变更"], "commit_groups": [["0d635b615", "6c24801b1"]], "identity_text": "In pg_combinebackup, don't construct filenames containing double slashes (Robert Haas) This caused no functional problems, but the duplicate slashes were visible in error messages, which could create confusion.", "commit_aliases": ["0d635b615", "6c24801b1"], "source_commits": ["0d635b615"], "source_entry_id": "17.1/changes/037", "db_id": "2b83e7518dde0fa62f2e0a32ec041ce9", "patch_ids": ["bcb0bed5356d7bad809a0c0d38c37961"], "statement_hash": "6c88048ec9f49d0f99cf43cd5265afc930ea03c22ae8a630fe3049f9ac2d5c7c", "relations": [], "version": "17.1", "category_label": "其他改进", "also_in": [], "variants": [], "related_changes": []}, {"id": "17.1-8ee5d1afad85ebfb", "cves": [], "html": "避免尝试在 vacuumdb 和并行 reindexdb 中重新索引临时表和索引（VaibhaveS，Michael Paquier，Fujii Masao，Nathan Bossart）§ § §
\n重新索引其他会话的临时表是不可能的，但在某些代码路径中缺少跳过它们的检查，导致了不必要的失败。
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\n在 ARM 平台上使用 JIT 编译时，生成的代码无法支持超过 32 位的重定位距离，使得在大内存系统上不巧的代码放置可能导致服务器崩溃。
", "text": "修复 ARM64 平台上不正确的 LLVM 生成代码（Thomas Munro，Anthonin Bonnefoy）§ 在 ARM 平台上使用 JIT 编译时，生成的代码无法支持超过 32 位的重定位距离，使得在大内存系统上不巧的代码放置可能导致服务器崩溃。", "title": "修复 ARM64 平台上不正确的 LLVM 生成代码", "commits": ["b7467ab71"], "section": "变更", "category": "bugfix", "source_url": "/docs/release/17.1/#RELEASE-17-1-CHANGES", "source_hash": "65b4809a577e45e9a17ab7ca7d178c0299dcd42c17dc354bd0dbe969fcb5059b", "section_path": ["变更"], "commit_groups": [["0b022ddf3", "19bf81c06", "50c1453a3", "9044fc1d4", "b7467ab71", "e88d824a4", "ee67b73f5"]], "identity_text": "Fix incorrect LLVM-generated code on ARM64 platforms (Thomas Munro, Anthonin Bonnefoy) When using JIT compilation on ARM platforms, the generated code could not support relocation distances exceeding 32 bits, allowing unlucky placement of generated code to cause server crashes on large-memory systems.", "commit_aliases": ["0b022ddf3", "19bf81c06", "50c1453a3", "9044fc1d4", "b7467ab71", "e88d824a4", "ee67b73f5"], "source_commits": ["b7467ab71"], "source_entry_id": "17.1/changes/039", "db_id": "552f755d17bee102cb50bf545ecb949c", "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a", "relations": [{"rule": 2, "type": "equivalent", "target": "07627c1366b7fc7a15a84f72711baf63", "evidence": {"same_day": true, "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a"}}, {"rule": 2, "type": "equivalent", "target": "2638bd1adab380229ce1a042d31b374e", "evidence": {"same_day": true, "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a"}}, {"rule": 2, "type": "equivalent", "target": "30c20b6563426a9899fdec9ce9437eed", "evidence": {"same_day": true, "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a"}}, {"rule": 2, "type": "equivalent", "target": "8b66c7a2971a68b203b33def34a61729", "evidence": {"same_day": true, "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a"}}, {"rule": 2, "type": "equivalent", "target": "a4a3b2371863ab88daa8190444068bd5", "evidence": {"same_day": true, "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a"}}], "version": "17.1", "category_label": "BUG 修复", "also_in": [], "variants": [], "related_changes": [{"db_id": "30c20b6563426a9899fdec9ce9437eed", "kind": "equivalent", "version": "16.5", "label": "16.5", "title": "修复 ARM64 平台上不正确的 LLVM 生成代码", "evidence": {"same_day": true, "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a"}, "url": "/docs/compare/?release=16.5#16.5-88ba539f0cf804a2", "source_url": "/docs/release/16.5/#RELEASE-16-5-CHANGES"}, {"db_id": "8b66c7a2971a68b203b33def34a61729", "kind": "equivalent", "version": "15.9", "label": "15.9", "title": "修复 ARM64 平台上不正确的 LLVM 生成代码", "evidence": {"same_day": true, "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a"}, "url": "/docs/compare/?release=15.9#15.9-dbfbd3d4f9ba03db", "source_url": "/docs/release/15.9/#ZH-AUTO-RELEASE-15-SECT2-18"}, {"db_id": "a4a3b2371863ab88daa8190444068bd5", "kind": "equivalent", "version": "14.14", "label": "14.14", "title": "修复 ARM64 平台上不正确的 LLVM 生成代码", "evidence": {"same_day": true, "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a"}, "url": "/docs/compare/?release=14.14#14.14-dbfbd3d4f9ba03db", "source_url": "/docs/release/14.14/#ZH-AUTO-RELEASE-14-SECT2-18"}, {"db_id": "07627c1366b7fc7a15a84f72711baf63", "kind": "equivalent", "version": "13.17", "label": "13.17", "title": "修复 ARM64 平台上不正确的 LLVM 生成代码", "evidence": {"same_day": true, "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a"}, "url": "/docs/compare/?release=13.17#13.17-385afd66c806f38e", "source_url": "/docs/release/13.17/#id-1.11.6.12.5"}, {"db_id": "2638bd1adab380229ce1a042d31b374e", "kind": "equivalent", "version": "12.21", "label": "12.21", "title": "修复 ARM64 平台上不正确的 LLVM 生成代码", "evidence": {"same_day": true, "patch_ids": ["57596ae59679a29ff707f6ee94229715"], "statement_hash": "e47f7abeabc7e940d49bb38787f3599b68c6feb47468e84b0e0a8e4edf13924a"}, "url": "/docs/compare/?release=12.21#12.21-92ba1b32a98f8d2f", "source_url": "/docs/release/12.21/#id-1.11.6.7.6"}]}, {"id": "17.1-0b285a27e1ea7d45", "cves": [], "html": "修复一些假设进程启动时间（表示为 time_t）能够放入 long 值的地方（Max Johnson，Nathan Bossart）§
在 long 为 32 位的平台上（尤其是 Windows），此代码将在 2038 年后失败。大多数失败看起来只是外观问题，但值得注意的是 pg_ctl start 会挂起。
将时区数据文件更新为 tzdata 2024b 版本（Tom Lane）§ §
\n此 tzdata 版本将旧的 System-V 兼容性区域名称更改为与对应地理区域重复；例如 PST8PDT 现在是 America/Los_Angeles 的别名。主要可见后果是，对于标准化时区引入之前的时间戳，该区域被认为代表命名位置的本地平均太阳时。例如，在 PST8PDT 中，timestamptz 输入如 1801-01-01 00:00 之前会被渲染为 1801-01-01 00:00:00-08，但现在会被渲染为 1801-01-01 00:00:00-07:52:58。
另外，包含墨西哥、蒙古和葡萄牙的历史修正。值得注意的是，Asia/Choibalsan 现在是 Asia/Ulaanbaatar 的别名而非独立区域，主要是因为这些区域之间的差异被发现是基于不可靠的数据。