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\u4ece pg_tablespace \u4e2d\u79fb\u9664 spclocation \u5b57\u6bb5\uff08Magnus Hagander\uff09\n

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", "text": "\u4ece pg_tablespace \u4e2d\u79fb\u9664 spclocation \u5b57\u6bb5\uff08Magnus Hagander\uff09 \u8be5\u5b57\u6bb5\u4e0e\u5b9e\u9645\u5b9a\u4e49\u8868\u7a7a\u95f4\u4f4d\u7f6e\u7684\u7b26\u53f7\u94fe\u63a5\u91cd\u590d\uff0c\u56e0\u6b64\u5728\u79fb\u52a8\u8868\u7a7a\u95f4\u65f6\u5b58\u5728\u9057\u6f0f\u9519\u8bef\u7684\u98ce\u9669\u3002\u6b64\u53d8\u66f4\u5141\u8bb8\u5728\u670d\u52a1\u5668\u505c\u673a\u671f\u95f4\u901a\u8fc7\u624b\u5de5\u8c03\u6574\u7b26\u53f7\u94fe\u63a5\u6765\u79fb\u52a8\u8868\u7a7a\u95f4\u76ee\u5f55\u3002\u4e3a\u4e86\u66ff\u4ee3\u8be5\u5b57\u6bb5\uff0c\u6211\u4eec\u65b0\u589e\u4e86 pg_tablespace_location() \u6765\u67e5\u8be2\u7b26\u53f7\u94fe\u63a5\u3002", "title": "\u4ece pg_tablespace \u4e2d\u79fb\u9664 spclocation \u5b57\u6bb5", "commits": [], "section": "\u7cfb\u7edf\u76ee\u5f55", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.4", "source_hash": "f7adbdf5a27a952fda3b70fe105a49c41b1e0a1e318a82041a9701138c9c3c48", "section_path": ["\u7cfb\u7edf\u76ee\u5f55"], "commit_groups": [], "identity_text": "Remove the spclocation field from pg_tablespace (Magnus Hagander) This field was duplicative of the symbolic links that actually define tablespace locations, and thus risked errors of omission when moving a tablespace. This change allows tablespace directories to be moved while the server is down, by manually adjusting the symbolic links. To replace this field, we have added pg_tablespace_location() to allow querying of the symbolic links.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/001", "db_id": "0dee80d3279fb6d47d887c0c371469e1", "patch_ids": [], "statement_hash": "2f4dd1e9bca01d4d50336ba607a7000af106ae37ecfe9c9bf8e2def36ebf9876", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-ac821c51436bac96", "migration": true}, {"id": "9.2.0-d0012a7942724551", "cves": [], "html": "

\u628a tsvector \u7684\u6700\u5e38\u7528\u5143\u7d20\u7edf\u8ba1\u79fb\u5230 pg_stats \u7684\u65b0\u5217\u4e2d\uff08Alexander Korotkov\uff09\n

\u5bf9\u4e8e tsvector \u5217\uff0c\u6b64\u524d\u5728 most_common_vals \u548c most_common_freqs \u4e2d\u53ef\u7528\u7684\u6570\u636e\uff0c\u8bf7\u6539\u67e5 most_common_elems \u548c most_common_elem_freqs\u3002\n

", "text": "\u628a tsvector \u7684\u6700\u5e38\u7528\u5143\u7d20\u7edf\u8ba1\u79fb\u5230 pg_stats \u7684\u65b0\u5217\u4e2d\uff08Alexander Korotkov\uff09 \u5bf9\u4e8e tsvector \u5217\uff0c\u6b64\u524d\u5728 most_common_vals \u548c most_common_freqs \u4e2d\u53ef\u7528\u7684\u6570\u636e\uff0c\u8bf7\u6539\u67e5 most_common_elems \u548c most_common_elem_freqs\u3002", "title": "\u628a tsvector \u7684\u6700\u5e38\u7528\u5143\u7d20\u7edf\u8ba1\u79fb\u5230 pg_stats \u7684\u65b0\u5217\u4e2d", "commits": [], "section": "\u7cfb\u7edf\u76ee\u5f55", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.4", "source_hash": "3e3f948d58e62c6e60757a3b64665b14686c585114948c8212050a8f6e3c6c73", "section_path": ["\u7cfb\u7edf\u76ee\u5f55"], "commit_groups": [], "identity_text": "Move tsvector most-common-element statistics to new pg_stats columns (Alexander Korotkov) Consult most_common_elems and most_common_elem_freqs for the data formerly available in most_common_vals and most_common_freqs for a tsvector column.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/002", "db_id": "ff099cb97e3af2a9f0fcc79022d513c3", "patch_ids": [], "statement_hash": "751f8bd694b3f75deddeca306833960cba55c6484228ff30c386497ae025c6b6", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-d0012a7942724551", "migration": true}, {"id": "9.2.0-c8d179ffb665ac6c", "cves": [], "html": "

\u79fb\u9664 hstore \u7684 => \u64cd\u4f5c\u7b26\uff08Robert Haas\uff09\n

\u7528\u6237\u73b0\u5728\u5e94\u4f7f\u7528 hstore(text, text)\u3002\u81ea PostgreSQL 9.0 \u8d77\uff0c\u521b\u5efa\u540d\u4e3a => \u7684\u64cd\u4f5c\u7b26\u65f6\u4f1a\u53d1\u51fa\u8b66\u544a\u6d88\u606f\uff0c\u56e0\u4e3a SQL \u6807\u51c6\u5c06\u8be5\u8bb0\u53f7\u4fdd\u7559\u4f5c\u5176\u4ed6\u7528\u9014\u3002\n

", "text": "\u79fb\u9664 hstore \u7684 => \u64cd\u4f5c\u7b26\uff08Robert Haas\uff09 \u7528\u6237\u73b0\u5728\u5e94\u4f7f\u7528 hstore(text, text)\u3002\u81ea PostgreSQL 9.0 \u8d77\uff0c\u521b\u5efa\u540d\u4e3a => \u7684\u64cd\u4f5c\u7b26\u65f6\u4f1a\u53d1\u51fa\u8b66\u544a\u6d88\u606f\uff0c\u56e0\u4e3a SQL \u6807\u51c6\u5c06\u8be5\u8bb0\u53f7\u4fdd\u7559\u4f5c\u5176\u4ed6\u7528\u9014\u3002", "title": "\u79fb\u9664 hstore \u7684 => \u64cd\u4f5c\u7b26", "commits": [], "section": "\u51fd\u6570", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.5", "source_hash": "0bc5041259cf8b1cc7f966a2c44056f5ea13519f632b282b41a336117866ad50", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Remove hstore's => operator (Robert Haas) Users should now use hstore(text, text). Since PostgreSQL 9.0, a warning message has been emitted when an operator named => is created because the SQL standard reserves that token for another use.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/003", "db_id": "130c56d2884f13941d5c0e7afa8a56f5", "patch_ids": [], "statement_hash": "bb24084dc3d52db28dba54b9b22d1fd7fc0b3e1583dbbd2e6dbfb291d6704b72", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-c8d179ffb665ac6c", "migration": true}, {"id": "9.2.0-96f80a719d7d2316", "cves": [], "html": "

\u786e\u4fdd xpath() \u5bf9\u5b57\u7b26\u4e32\u503c\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u8f6c\u4e49\uff08Florian Pflug\uff09\n

\u5426\u5219\u7ed3\u679c\u6709\u53ef\u80fd\u4e0d\u662f\u6709\u6548\u7684 XML\u3002\n

", "text": "\u786e\u4fdd xpath() \u5bf9\u5b57\u7b26\u4e32\u503c\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u8f6c\u4e49\uff08Florian Pflug\uff09 \u5426\u5219\u7ed3\u679c\u6709\u53ef\u80fd\u4e0d\u662f\u6709\u6548\u7684 XML\u3002", "title": "\u786e\u4fdd xpath() \u5bf9\u5b57\u7b26\u4e32\u503c\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u8f6c\u4e49", "commits": [], "section": "\u51fd\u6570", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.5", "source_hash": "1eac963925e07141a03a6328ca5434101eacd9325d08845410b8cce6a26eecc0", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Ensure that xpath() escapes special characters in string values (Florian Pflug) Without this it is possible for the result not to be valid XML.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/004", "db_id": "17e9b8e18bf5e004ec23b77220a11236", "patch_ids": [], "statement_hash": "5d1915ca8f7fa28914b68f873c509f50328586065d08570746126978c60e8e77", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-96f80a719d7d2316", "migration": true}, {"id": "9.2.0-cd08ea6972407cc4", "cves": [], "html": "

\u8ba9 pg_relation_size() \u53ca\u76f8\u5173\u51fd\u6570\u5728\u5bf9\u8c61\u4e0d\u5b58\u5728\u65f6\u8fd4\u56de NULL\uff08Phil Sorber\uff09\n

\u8fd9\u9632\u6b62\u4e86\u8c03\u7528\u8fd9\u4e9b\u51fd\u6570\u7684\u67e5\u8be2\u5728\u5e76\u53d1 DROP \u4e4b\u540e\u7acb\u5373\u8fd4\u56de\u9519\u8bef\u3002\n

", "text": "\u8ba9 pg_relation_size() \u53ca\u76f8\u5173\u51fd\u6570\u5728\u5bf9\u8c61\u4e0d\u5b58\u5728\u65f6\u8fd4\u56de NULL\uff08Phil Sorber\uff09 \u8fd9\u9632\u6b62\u4e86\u8c03\u7528\u8fd9\u4e9b\u51fd\u6570\u7684\u67e5\u8be2\u5728\u5e76\u53d1 DROP \u4e4b\u540e\u7acb\u5373\u8fd4\u56de\u9519\u8bef\u3002", "title": "\u8ba9 pg_relation_size() \u53ca\u76f8\u5173\u51fd\u6570\u5728\u5bf9\u8c61\u4e0d\u5b58\u5728\u65f6\u8fd4\u56de NULL", "commits": [], "section": "\u51fd\u6570", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.5", "source_hash": "0365a8d74f572ffd411ff74388c5836ade6dcd913ed8310188ec918cce463cb1", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Make pg_relation_size() and friends return NULL if the object does not exist (Phil Sorber) This prevents queries that call these functions from returning errors immediately after a concurrent DROP.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/005", "db_id": "1049283f15229997ae75536f02dabfdb", "patch_ids": [], "statement_hash": "780e3507a8bdf2e427ab322214854c69d5d9b0188187d08d14f9741c2ab3fb91", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-cd08ea6972407cc4", "migration": true}, {"id": "9.2.0-3a93f110e6587f1e", "cves": [], "html": "

\u8ba9 EXTRACT(EPOCH FROM timestamp without time zone) \u4ece\u672c\u5730\u5348\u591c\u800c\u4e0d\u662f UTC \u5348\u591c\u8d77\u7b97\u7eaa\u5143\uff08Tom Lane\uff09\n

\u6b64\u53d8\u66f4\u64a4\u9500\u4e86 7.3 \u7248\u672c\u4e2d\u4e00\u4e2a\u6b20\u8003\u8651\u7684\u53d8\u66f4\u3002\u4ece UTC \u5348\u591c\u8d77\u7b97\u662f\u4e0d\u4e00\u81f4\u7684\uff0c\u56e0\u4e3a\u5b83\u4f7f\u7ed3\u679c\u4f9d\u8d56\u4e8e timezone \u8bbe\u7f6e\uff0c\u800c timestamp without time zone \u7684\u8ba1\u7b97\u4e0d\u5e94\u5982\u6b64\u3002\u628a\u8f93\u5165\u503c\u8f6c\u6362\u4e3a timestamp with time zone \u4ecd\u53ef\u83b7\u5f97\u5148\u524d\u7684\u884c\u4e3a\u3002\n

", "text": "\u8ba9 EXTRACT(EPOCH FROM timestamp without time zone) \u4ece\u672c\u5730\u5348\u591c\u800c\u4e0d\u662f UTC \u5348\u591c\u8d77\u7b97\u7eaa\u5143\uff08Tom Lane\uff09 \u6b64\u53d8\u66f4\u64a4\u9500\u4e86 7.3 \u7248\u672c\u4e2d\u4e00\u4e2a\u6b20\u8003\u8651\u7684\u53d8\u66f4\u3002\u4ece UTC \u5348\u591c\u8d77\u7b97\u662f\u4e0d\u4e00\u81f4\u7684\uff0c\u56e0\u4e3a\u5b83\u4f7f\u7ed3\u679c\u4f9d\u8d56\u4e8e timezone \u8bbe\u7f6e\uff0c\u800c timestamp without time zone \u7684\u8ba1\u7b97\u4e0d\u5e94\u5982\u6b64\u3002\u628a\u8f93\u5165\u503c\u8f6c\u6362\u4e3a timestamp with time zone \u4ecd\u53ef\u83b7\u5f97\u5148\u524d\u7684\u884c\u4e3a\u3002", "title": "\u8ba9 EXTRACT(EPOCH FROM timestamp without time zone) \u4ece\u672c\u5730\u5348\u591c\u800c\u4e0d\u662f UTC \u5348\u591c\u8d77\u7b97\u7eaa\u5143", "commits": [], "section": "\u51fd\u6570", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.5", "source_hash": "1b55b0afb09e907f3dd5aeed6792309cff5f6e7de7e6700eaa8bf80093893a7d", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Make EXTRACT(EPOCH FROM timestamp without time zone) measure the epoch from local midnight, not UTC midnight (Tom Lane) This change reverts an ill-considered change made in release 7.3. Measuring from UTC midnight was inconsistent because it made the result dependent on the timezone setting, which computations for timestamp without time zone should not be. The previous behavior remains available by casting the input value to timestamp with time zone.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/006", "db_id": "235bcb9ccba1cc7e83d2689cc8355017", "patch_ids": [], "statement_hash": "0c9bec912da2bbe68dc0b668899d84ba6c0662aaf815a467c74e6c97fac7dc8e", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-3a93f110e6587f1e", "migration": true}, {"id": "9.2.0-d6b8448d07f30f53", "cves": [], "html": "

\u6b63\u786e\u89e3\u6790\u5e26\u5c3e\u7f00 yesterday\u3001today \u548c tomorrow \u7684\u65f6\u95f4\u4e32\uff08Dean Rasheed\uff09\n

\u6b64\u524d\uff0cSELECT '04:00:00 yesterday'::timestamp \u8fd4\u56de\u7684\u662f\u6628\u5929\u5348\u591c\u7684\u65e5\u671f\u3002\n

", "text": "\u6b63\u786e\u89e3\u6790\u5e26\u5c3e\u7f00 yesterday\u3001today \u548c tomorrow \u7684\u65f6\u95f4\u4e32\uff08Dean Rasheed\uff09 \u6b64\u524d\uff0cSELECT '04:00:00 yesterday'::timestamp \u8fd4\u56de\u7684\u662f\u6628\u5929\u5348\u591c\u7684\u65e5\u671f\u3002", "title": "\u6b63\u786e\u89e3\u6790\u5e26\u5c3e\u7f00 yesterday\u3001today \u548c tomorrow \u7684\u65f6\u95f4\u4e32", "commits": [], "section": "\u51fd\u6570", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.5", "source_hash": "2d5d48b665b29af237877f0041089b421d80bdef483486695d10f0cfced04189", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Properly parse time strings with trailing yesterday, today, and tomorrow (Dean Rasheed) Previously, SELECT '04:00:00 yesterday'::timestamp returned yesterday's date at midnight.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/007", "db_id": "f1374374430f5336acf70cb7cab35db9", "patch_ids": [], "statement_hash": "66b93ed3a8b36f57f0108d12bc0d727e4c93db0f444708982c19be17d8f51a4d", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-d6b8448d07f30f53", "migration": true}, {"id": "9.2.0-9ab4877581d1f33d", "cves": [], "html": "

\u4fee\u590d to_date() \u548c to_timestamp()\uff0c\u4f7f\u4e0d\u5b8c\u6574\u65e5\u671f\u5411 2020 \u5e74\u6298\u7b97\uff08Bruce Momjian\uff09\n

\u6b64\u524d\uff0c\u5c11\u4e8e\u56db\u4f4d\u7684\u63d0\u4f9b\u5e74\u4efd\u548c\u5e74\u4efd\u63a9\u7801\u7684\u6298\u7b97\u4e0d\u4e00\u81f4\u3002\n

", "text": "\u4fee\u590d to_date() \u548c to_timestamp()\uff0c\u4f7f\u4e0d\u5b8c\u6574\u65e5\u671f\u5411 2020 \u5e74\u6298\u7b97\uff08Bruce Momjian\uff09 \u6b64\u524d\uff0c\u5c11\u4e8e\u56db\u4f4d\u7684\u63d0\u4f9b\u5e74\u4efd\u548c\u5e74\u4efd\u63a9\u7801\u7684\u6298\u7b97\u4e0d\u4e00\u81f4\u3002", "title": "\u4fee\u590d to_date() \u548c to_timestamp()\uff0c\u4f7f\u4e0d\u5b8c\u6574\u65e5\u671f\u5411 2020 \u5e74\u6298\u7b97", "commits": [], "section": "\u51fd\u6570", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.5", "source_hash": "c0a51de1dec797242eea43179d6bca1e8366841093a0acffc7f3558ce833bd4e", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Fix to_date() and to_timestamp() to wrap incomplete dates toward 2020 (Bruce Momjian) Previously, supplied years and year masks of less than four digits wrapped inconsistently.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/008", "db_id": "989984570a1fbf58e99f08bc37aaa406", "patch_ids": [], "statement_hash": "2cb0b9cf8efc0acb4e883e1bba0532e1bcd7d41fb5e47571a3acd2d8c8e93740", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-9ab4877581d1f33d", "migration": true}, {"id": "9.2.0-cd00c820fae09d7b", "cves": [], "html": "

\u9632\u6b62 ALTER DOMAIN \u4f5c\u7528\u4e8e\u975e\u57df\u7c7b\u578b\uff08Peter Eisentraut\uff09\n

\u6b64\u524d\u5728\u975e\u57df\u7c7b\u578b\u4e0a\u53ef\u4ee5\u66f4\u6539\u6240\u6709\u8005\u548c\u6a21\u5f0f\u3002\n

", "text": "\u9632\u6b62 ALTER DOMAIN \u4f5c\u7528\u4e8e\u975e\u57df\u7c7b\u578b\uff08Peter Eisentraut\uff09 \u6b64\u524d\u5728\u975e\u57df\u7c7b\u578b\u4e0a\u53ef\u4ee5\u66f4\u6539\u6240\u6709\u8005\u548c\u6a21\u5f0f\u3002", "title": "\u9632\u6b62 ALTER DOMAIN \u4f5c\u7528\u4e8e\u975e\u57df\u7c7b\u578b", "commits": [], "section": "\u5bf9\u8c61\u4fee\u6539", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.6", "source_hash": "abec666d98927e633543e3bfae887bd7e15e05f9223862e18bded243dd5ef0b4", "section_path": ["\u5bf9\u8c61\u4fee\u6539"], "commit_groups": [], "identity_text": "Prevent ALTER DOMAIN from working on non-domain types (Peter Eisentraut) Owner and schema changes were previously possible on non-domain types.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/009", "db_id": "607f033153f148904cf55c5cd83101ad", "patch_ids": [], "statement_hash": "f66af13fd0c566ebe6faaccea5b1519a4333e0c37155456dd579d929d360d48b", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-cd00c820fae09d7b", "migration": true}, {"id": "9.2.0-a0fcc7f08b1d0470", "cves": [], "html": "

\u4e0d\u518d\u5728 CREATE FUNCTION \u4e2d\u5f3a\u5236\u5c0f\u5199\u8fc7\u7a0b\u8bed\u8a00\u540d\uff08Robert Haas\uff09\n

\u867d\u7136\u4e0d\u5e26\u5f15\u53f7\u7684\u8bed\u8a00\u6807\u8bc6\u7b26\u4ecd\u4f1a\u5c0f\u5199\uff0c\u4f46\u5b57\u7b26\u4e32\u548c\u5e26\u5f15\u53f7\u7684\u6807\u8bc6\u7b26\u4e0d\u518d\u88ab\u5f3a\u5236\u5c0f\u5199\u3002\u56e0\u6b64\u4f8b\u5982 CREATE FUNCTION ... LANGUAGE 'C' \u5c06\u4e0d\u518d\u6709\u6548\uff1b\u5fc5\u987b\u5199\u6210 'c'\uff0c\u6216\u8005\u6700\u597d\u7701\u7565\u5f15\u53f7\u3002\n

", "text": "\u4e0d\u518d\u5728 CREATE FUNCTION \u4e2d\u5f3a\u5236\u5c0f\u5199\u8fc7\u7a0b\u8bed\u8a00\u540d\uff08Robert Haas\uff09 \u867d\u7136\u4e0d\u5e26\u5f15\u53f7\u7684\u8bed\u8a00\u6807\u8bc6\u7b26\u4ecd\u4f1a\u5c0f\u5199\uff0c\u4f46\u5b57\u7b26\u4e32\u548c\u5e26\u5f15\u53f7\u7684\u6807\u8bc6\u7b26\u4e0d\u518d\u88ab\u5f3a\u5236\u5c0f\u5199\u3002\u56e0\u6b64\u4f8b\u5982 CREATE FUNCTION ... LANGUAGE 'C' \u5c06\u4e0d\u518d\u6709\u6548\uff1b\u5fc5\u987b\u5199\u6210 'c'\uff0c\u6216\u8005\u6700\u597d\u7701\u7565\u5f15\u53f7\u3002", "title": "\u4e0d\u518d\u5728 CREATE FUNCTION \u4e2d\u5f3a\u5236\u5c0f\u5199\u8fc7\u7a0b\u8bed\u8a00\u540d", "commits": [], "section": "\u5bf9\u8c61\u4fee\u6539", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.6", "source_hash": "b6c06e2c71dddc0c388df2cb1db48204cd8fdefaf158cf53a364fb5198a5727f", "section_path": ["\u5bf9\u8c61\u4fee\u6539"], "commit_groups": [], "identity_text": "No longer forcibly lowercase procedural language names in CREATE FUNCTION (Robert Haas) While unquoted language identifiers are still lowercased, strings and quoted identifiers are no longer forcibly down-cased. Thus for example CREATE FUNCTION ... LANGUAGE 'C' will no longer work; it must be spelled 'c', or better omit the quotes.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/010", "db_id": "2fdd5cf1fefa4d12053477f798b45ae6", "patch_ids": [], "statement_hash": "61dcd36a4b17fe0331067af75900f3b7f029fc1759c5d011f2c4c7a13d123d06", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-a0fcc7f08b1d0470", "migration": true}, {"id": "9.2.0-d1ce038d21d2d6c8", "cves": [], "html": "

\u66f4\u6539\u5916\u952e\u5f3a\u5236\u89e6\u53d1\u5668\u7684\u7cfb\u7edf\u751f\u6210\u540d\u79f0\uff08Tom Lane\uff09\n

\u6b64\u53d8\u66f4\u786e\u4fdd\u5728\u67d0\u4e9b\u6d89\u53ca\u81ea\u5f15\u7528\u5916\u952e\u7ea6\u675f\u7684\u6781\u7aef\u60c5\u51b5\u4e0b\u89e6\u53d1\u5668\u6309\u6b63\u786e\u987a\u5e8f\u89e6\u53d1\u3002\n

", "text": "\u66f4\u6539\u5916\u952e\u5f3a\u5236\u89e6\u53d1\u5668\u7684\u7cfb\u7edf\u751f\u6210\u540d\u79f0\uff08Tom Lane\uff09 \u6b64\u53d8\u66f4\u786e\u4fdd\u5728\u67d0\u4e9b\u6d89\u53ca\u81ea\u5f15\u7528\u5916\u952e\u7ea6\u675f\u7684\u6781\u7aef\u60c5\u51b5\u4e0b\u89e6\u53d1\u5668\u6309\u6b63\u786e\u987a\u5e8f\u89e6\u53d1\u3002", "title": "\u66f4\u6539\u5916\u952e\u5f3a\u5236\u89e6\u53d1\u5668\u7684\u7cfb\u7edf\u751f\u6210\u540d\u79f0", "commits": [], "section": "\u5bf9\u8c61\u4fee\u6539", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.6", "source_hash": "765e832e408d501c4aa617f1bf0c352b38a2551a960f3d9b0124f5c8ec086d30", "section_path": ["\u5bf9\u8c61\u4fee\u6539"], "commit_groups": [], "identity_text": "Change system-generated names of foreign key enforcement triggers (Tom Lane) This change ensures that the triggers fire in the correct order in some corner cases involving self-referential foreign key constraints.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/011", "db_id": "3e5ac31d03d056ae4c5a075721972808", "patch_ids": [], "statement_hash": "d06a94711d0c4c81639971a0d657e9fdfb5c4e2c5f26b5cd753416fc9fef689b", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-d1ce038d21d2d6c8", "migration": true}, {"id": "9.2.0-008f1099d913905d", "cves": [], "html": "

\u4e3apsql\u5143\u547d\u4ee4\u53c2\u6570\u63d0\u4f9b\u4e00\u81f4\u7684\u53cd\u5f15\u53f7\u3001\u53d8\u91cf\u5c55\u5f00\u548c\u5e26\u5f15\u53f7\u5b50\u4e32\u884c\u4e3a\uff08Tom Lane\uff09\n

\u6b64\u524d\uff0c\u5f53\u8fd9\u7c7b\u5f15\u7528\u4e0e\u76f8\u90bb\u6587\u672c\u4e4b\u95f4\u6ca1\u6709\u7a7a\u767d\u5206\u9694\u65f6\uff0c\u5904\u7406\u65b9\u5f0f\u5f88\u5947\u602a\u3002\u4f8b\u5982 'FOO'BAR \u4f1a\u8f93\u51fa\u4e3a FOO BAR\uff08\u610f\u5916\u63d2\u5165\u7a7a\u683c\uff09\uff0c\u800c FOO'BAR'BAZ \u4f1a\u539f\u6837\u8f93\u51fa\uff08\u4e0d\u50cf\u5927\u591a\u6570\u4eba\u671f\u671b\u7684\u90a3\u6837\u53bb\u6389\u5f15\u53f7\uff09\u3002\n

", "text": "\u4e3apsql\u5143\u547d\u4ee4\u53c2\u6570\u63d0\u4f9b\u4e00\u81f4\u7684\u53cd\u5f15\u53f7\u3001\u53d8\u91cf\u5c55\u5f00\u548c\u5e26\u5f15\u53f7\u5b50\u4e32\u884c\u4e3a\uff08Tom Lane\uff09 \u6b64\u524d\uff0c\u5f53\u8fd9\u7c7b\u5f15\u7528\u4e0e\u76f8\u90bb\u6587\u672c\u4e4b\u95f4\u6ca1\u6709\u7a7a\u767d\u5206\u9694\u65f6\uff0c\u5904\u7406\u65b9\u5f0f\u5f88\u5947\u602a\u3002\u4f8b\u5982 'FOO'BAR \u4f1a\u8f93\u51fa\u4e3a FOO BAR\uff08\u610f\u5916\u63d2\u5165\u7a7a\u683c\uff09\uff0c\u800c FOO'BAR'BAZ \u4f1a\u539f\u6837\u8f93\u51fa\uff08\u4e0d\u50cf\u5927\u591a\u6570\u4eba\u671f\u671b\u7684\u90a3\u6837\u53bb\u6389\u5f15\u53f7\uff09\u3002", "title": "\u4e3apsql\u5143\u547d\u4ee4\u53c2\u6570\u63d0\u4f9b\u4e00\u81f4\u7684\u53cd\u5f15\u53f7\u3001\u53d8\u91cf\u5c55\u5f00\u548c\u5e26\u5f15\u53f7\u5b50\u4e32\u884c\u4e3a", "commits": [], "section": "\u547d\u4ee4\u884c\u5de5\u5177", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.7", "source_hash": "7a6bc02098e76f8d285dd2c79ce74ad4f49f36dab799bd0c95e0944b9b4c93ca", "section_path": ["\u547d\u4ee4\u884c\u5de5\u5177"], "commit_groups": [], "identity_text": "Provide consistent backquote, variable expansion, and quoted substring behavior in psql meta-command arguments (Tom Lane) Previously, such references were treated oddly when not separated by whitespace from adjacent text. For example 'FOO'BAR was output as FOO BAR (unexpected insertion of a space) and FOO'BAR'BAZ was output unchanged (not removing the quotes as most would expect).", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/012", "db_id": "4a06d39776ae0ba354369145cd845eab", "patch_ids": [], "statement_hash": "17fc79fc2c132b18251a098a1ba5e8151bf4580fde3513939c69e22ffb3b38bf", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-008f1099d913905d", "migration": true}, {"id": "9.2.0-252c006c84f0d7a8", "cves": [], "html": "

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\u5982\u679c\u9700\u8981\u52a0\u5f15\u53f7\uff0c\u7528\u6237\u73b0\u5728\u5fc5\u987b\u5728\u547d\u4ee4\u53c2\u6570\u4e2d\u5305\u542b\u53cc\u5f15\u53f7\u3002\n

", "text": "\u4e0d\u518d\u628aclusterdb\u7684\u8868\u540d\u89c6\u4e3a\u5df2\u52a0\u53cc\u5f15\u53f7\uff1b\u4e0d\u518d\u628areindexdb\u7684\u8868\u540d\u548c\u7d22\u5f15\u540d\u89c6\u4e3a\u5df2\u52a0\u53cc\u5f15\u53f7\uff08Bruce Momjian\uff09 \u5982\u679c\u9700\u8981\u52a0\u5f15\u53f7\uff0c\u7528\u6237\u73b0\u5728\u5fc5\u987b\u5728\u547d\u4ee4\u53c2\u6570\u4e2d\u5305\u542b\u53cc\u5f15\u53f7\u3002", "title": "\u4e0d\u518d\u628aclusterdb\u7684\u8868\u540d\u89c6\u4e3a\u5df2\u52a0\u53cc\u5f15\u53f7\uff1b\u4e0d\u518d\u628areindexdb\u7684\u8868\u540d\u548c\u7d22\u5f15\u540d\u89c6\u4e3a\u5df2\u52a0\u53cc\u5f15\u53f7", "commits": [], "section": "\u547d\u4ee4\u884c\u5de5\u5177", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.7", "source_hash": "585701e9649ad2ae05b48606f24094945e3bcedd4689c1e593ac12000dbe943b", "section_path": ["\u547d\u4ee4\u884c\u5de5\u5177"], "commit_groups": [], "identity_text": "No longer treat clusterdb table names as double-quoted; no longer treat reindexdb table and index names as double-quoted (Bruce Momjian) Users must now include double-quotes in the command arguments if quoting is wanted.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/013", "db_id": "d6f6ed236ca3d1da37c693939c97a91d", "patch_ids": [], "statement_hash": "305b5399ba81c8baa62d4b3f9bbf4e728c8701ef4e889ace6fc787dee57ffb55", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-252c006c84f0d7a8", "migration": true}, {"id": "9.2.0-7ad135c980fbfd45", "cves": [], "html": "

createuser \u9ed8\u8ba4\u4e0d\u518d\u63d0\u793a\u8f93\u5165\u9009\u9879\u8bbe\u7f6e\uff08Peter Eisentraut\uff09\n

\u4f7f\u7528 --interactive \u83b7\u5f97\u65e7\u884c\u4e3a\u3002\n

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\u9664\u975e\u6307\u5b9a --interactive\uff0c\u5426\u5219\u7981\u7528dropuser\u4e2d\u7684\u7528\u6237\u540d\u63d0\u793a\uff08Peter Eisentraut\uff09\n

", "text": "\u9664\u975e\u6307\u5b9a --interactive\uff0c\u5426\u5219\u7981\u7528dropuser\u4e2d\u7684\u7528\u6237\u540d\u63d0\u793a\uff08Peter Eisentraut\uff09", "title": "\u9664\u975e\u6307\u5b9a --interactive\uff0c\u5426\u5219\u7981\u7528dropuser\u4e2d\u7684\u7528\u6237\u540d\u63d0\u793a", "commits": [], "section": "\u547d\u4ee4\u884c\u5de5\u5177", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.7", "source_hash": "8837bd904ae0a74b5d0d5b27fc1f92327e0f0516dbd4eea0a5690f78e8f7ebde", "section_path": ["\u547d\u4ee4\u884c\u5de5\u5177"], "commit_groups": [], "identity_text": "Disable prompting for the user name in dropuser unless --interactive is specified (Peter Eisentraut)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/015", "db_id": "81fbf46890a96697c90f3afa4f68e2ba", "patch_ids": [], "statement_hash": "d2bdb34b3a105eefe06ebc43dbcf7394bf861bdd20dff3de3ba1114cd27c245b", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-ac6a997ef928f243", "migration": true}, {"id": "9.2.0-701dba5458c47731", "cves": [], "html": "

\u65b0\u589e\u7528\u4e8e\u6307\u5b9a\u670d\u52a1\u5668\u7aef SSL \u6587\u4ef6\u4f4d\u7f6e\u7684\u670d\u52a1\u5668\u53c2\u6570\uff08Peter Eisentraut\uff09\n

\u8fd9\u5141\u8bb8\u66f4\u6539\u6b64\u524d\u5728\u6570\u636e\u76ee\u5f55\u4e2d\u786c\u7f16\u7801\u4e3a server.crt\u3001server.key\u3001root.crt \u548c root.crl \u7684\u6587\u4ef6\u7684\u540d\u79f0\u548c\u4f4d\u7f6e\u3002\u670d\u52a1\u5668\u9ed8\u8ba4\u4e0d\u518d\u68c0\u67e5 root.crt \u6216 root.crl\uff1b\u8981\u52a0\u8f7d\u8fd9\u4e9b\u6587\u4ef6\uff0c\u5fc5\u987b\u628a\u76f8\u5173\u53c2\u6570\u8bbe\u4e3a\u975e\u9ed8\u8ba4\u503c\u3002\n

", "text": "\u65b0\u589e\u7528\u4e8e\u6307\u5b9a\u670d\u52a1\u5668\u7aef SSL \u6587\u4ef6\u4f4d\u7f6e\u7684\u670d\u52a1\u5668\u53c2\u6570\uff08Peter Eisentraut\uff09 \u8fd9\u5141\u8bb8\u66f4\u6539\u6b64\u524d\u5728\u6570\u636e\u76ee\u5f55\u4e2d\u786c\u7f16\u7801\u4e3a server.crt\u3001server.key\u3001root.crt \u548c root.crl \u7684\u6587\u4ef6\u7684\u540d\u79f0\u548c\u4f4d\u7f6e\u3002\u670d\u52a1\u5668\u9ed8\u8ba4\u4e0d\u518d\u68c0\u67e5 root.crt \u6216 root.crl\uff1b\u8981\u52a0\u8f7d\u8fd9\u4e9b\u6587\u4ef6\uff0c\u5fc5\u987b\u628a\u76f8\u5173\u53c2\u6570\u8bbe\u4e3a\u975e\u9ed8\u8ba4\u503c\u3002", "title": "\u65b0\u589e\u7528\u4e8e\u6307\u5b9a\u670d\u52a1\u5668\u7aef SSL \u6587\u4ef6\u4f4d\u7f6e\u7684\u670d\u52a1\u5668\u53c2\u6570", "commits": [], "section": "\u670d\u52a1\u5668\u8bbe\u7f6e", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.8", "source_hash": "199ac5cc8de895f05ff15c2d8a9d6a7bc4a88e6d43b4c4a29d9823dc89d82d1b", "section_path": ["\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Add server parameters for specifying the locations of server-side SSL files (Peter Eisentraut) This allows changing the names and locations of the files that were previously hard-coded as server.crt, server.key, root.crt, and root.crl in the data directory. The server will no longer examine root.crt or root.crl by default; to load these files, the associated parameters must be set to non-default values.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/016", "db_id": "9757f6ad288ad8cf45494ca191a69bbf", "patch_ids": [], "statement_hash": "a69d1f76c482d875809fcfdb77f28b015d6ae97da5d037e643f67323848cfb4a", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-701dba5458c47731", "migration": true}, {"id": "9.2.0-4cde5ab2a51778e9", "cves": [], "html": "

\u79fb\u9664 silent_mode \u53c2\u6570\uff08Heikki Linnakangas\uff09\n

\u7c7b\u4f3c\u7684\u884c\u4e3a\u53ef\u4ee5\u7528 pg_ctl start -l postmaster.log \u83b7\u5f97\u3002\n

", "text": "\u79fb\u9664 silent_mode \u53c2\u6570\uff08Heikki Linnakangas\uff09 \u7c7b\u4f3c\u7684\u884c\u4e3a\u53ef\u4ee5\u7528 pg_ctl start -l postmaster.log \u83b7\u5f97\u3002", "title": "\u79fb\u9664 silent_mode \u53c2\u6570", "commits": [], "section": "\u670d\u52a1\u5668\u8bbe\u7f6e", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.8", "source_hash": "f07a37d9cc57db141cb1f30cd53563558e90fddcfa6c2195cb737e3ad75d4ce5", "section_path": ["\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Remove the silent_mode parameter (Heikki Linnakangas) Similar behavior can be obtained with pg_ctl start -l postmaster.log.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/017", "db_id": "c74d75a5437ebdedd8b424c27cf54e23", "patch_ids": [], "statement_hash": "b9a8a07c39a21c55ddc0525b80cbb1427c2e8c0cd6d87e579af220995422ef0b", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-4cde5ab2a51778e9", "migration": true}, {"id": "9.2.0-a6f32313e72bf521", "cves": [], "html": "

\u79fb\u9664 wal_sender_delay \u53c2\u6570\uff0c\u56e0\u4e3a\u5b83\u4e0d\u518d\u9700\u8981\uff08Tom Lane\uff09\n

", "text": "\u79fb\u9664 wal_sender_delay \u53c2\u6570\uff0c\u56e0\u4e3a\u5b83\u4e0d\u518d\u9700\u8981\uff08Tom Lane\uff09", "title": "\u79fb\u9664 wal_sender_delay \u53c2\u6570\uff0c\u56e0\u4e3a\u5b83\u4e0d\u518d\u9700\u8981", "commits": [], "section": "\u670d\u52a1\u5668\u8bbe\u7f6e", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.8", "source_hash": "2ed330db0ed157a298459a3531f7d4d593b45acda07d4fc9ab49be6303812f20", "section_path": ["\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Remove the wal_sender_delay parameter, as it is no longer needed (Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/018", "db_id": "2486b269f5c650a792cef3f90b49cfc5", "patch_ids": [], "statement_hash": "b3228539187858d7cc546ad6710f1a5fadb332f239f00c3e734611eab70078d4", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-a6f32313e72bf521", "migration": true}, {"id": "9.2.0-792e0b44598eb86d", "cves": [], "html": "

\u79fb\u9664 custom_variable_classes \u53c2\u6570\uff08Tom Lane\uff09\n

\u8be5\u8bbe\u7f6e\u63d0\u4f9b\u7684\u68c0\u67e5\u4ef7\u503c\u5b58\u7591\u3002\u73b0\u5728\u4efb\u4f55\u8bbe\u7f6e\u90fd\u53ef\u4ee5\u4ee5\u4efb\u4f55\u7c7b\u540d\u4e3a\u524d\u7f00\u3002\n

", "text": "\u79fb\u9664 custom_variable_classes \u53c2\u6570\uff08Tom Lane\uff09 \u8be5\u8bbe\u7f6e\u63d0\u4f9b\u7684\u68c0\u67e5\u4ef7\u503c\u5b58\u7591\u3002\u73b0\u5728\u4efb\u4f55\u8bbe\u7f6e\u90fd\u53ef\u4ee5\u4ee5\u4efb\u4f55\u7c7b\u540d\u4e3a\u524d\u7f00\u3002", "title": "\u79fb\u9664 custom_variable_classes \u53c2\u6570", "commits": [], "section": "\u670d\u52a1\u5668\u8bbe\u7f6e", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.8", "source_hash": "60d3f23f34d5de0940b17a4730e9bc4102e26e23ff49737617cd165efd6de159", "section_path": ["\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Remove the custom_variable_classes parameter (Tom Lane) The checking provided by this setting was dubious. Now any setting can be prefixed by any class name.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/019", "db_id": "42e50b71bd412144eebcde5c01397a38", "patch_ids": [], "statement_hash": "bd8d9343977fa392c4d58077f752a1963f80e41637a81dcf6e601fb03d1e5400", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-792e0b44598eb86d", "migration": true}, {"id": "9.2.0-453b1bca8fcd1555", "cves": [], "html": "

\u628a pg_stat_activity.procpid \u91cd\u547d\u540d\u4e3a pid\uff0c\u4ee5\u4e0e\u5176\u4ed6\u7cfb\u7edf\u8868\u4e00\u81f4\uff08Magnus Hagander\uff09\n

", "text": "\u628a pg_stat_activity.procpid \u91cd\u547d\u540d\u4e3a pid\uff0c\u4ee5\u4e0e\u5176\u4ed6\u7cfb\u7edf\u8868\u4e00\u81f4\uff08Magnus Hagander\uff09", "title": "\u628a pg_stat_activity.procpid \u91cd\u547d\u540d\u4e3a pid\uff0c\u4ee5\u4e0e\u5176\u4ed6\u7cfb\u7edf\u8868\u4e00\u81f4", "commits": [], "section": "\u76d1\u63a7", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.9", "source_hash": "9e4d37d0d2c0d28492e2d5b204a4a9b6562477dca32eb1b9171e296d0dd03edd", "section_path": ["\u76d1\u63a7"], "commit_groups": [], "identity_text": "Rename pg_stat_activity.procpid to pid, to match other system tables (Magnus Hagander)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/020", "db_id": "fe24c5a433d1ae3698cd736cc9df609b", "patch_ids": [], "statement_hash": "e5480300f0d43cf2d8dd903da9608beb13fb0d660d4467a1cb1f2e1ab9c579c7", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-453b1bca8fcd1555", "migration": true}, {"id": "9.2.0-6753510ed67e9def", "cves": [], "html": "

\u4e3a pg_stat_activity \u521b\u5efa\u5355\u72ec\u7684\u5217\u6765\u62a5\u544a\u8fdb\u7a0b\u72b6\u6001\uff08Scott Mead\u3001Magnus Hagander\uff09\n

\u5148\u524d\u7684 query \u548c query_start \u503c\u73b0\u5728\u5bf9\u7a7a\u95f2\u4f1a\u8bdd\u4ecd\u7136\u53ef\u7528\uff0c\u4ece\u800c\u652f\u6301\u66f4\u5f3a\u7684\u5206\u6790\u3002\n

", "text": "\u4e3a pg_stat_activity \u521b\u5efa\u5355\u72ec\u7684\u5217\u6765\u62a5\u544a\u8fdb\u7a0b\u72b6\u6001\uff08Scott Mead\u3001Magnus Hagander\uff09 \u5148\u524d\u7684 query \u548c query_start \u503c\u73b0\u5728\u5bf9\u7a7a\u95f2\u4f1a\u8bdd\u4ecd\u7136\u53ef\u7528\uff0c\u4ece\u800c\u652f\u6301\u66f4\u5f3a\u7684\u5206\u6790\u3002", "title": "\u4e3a pg_stat_activity \u521b\u5efa\u5355\u72ec\u7684\u5217\u6765\u62a5\u544a\u8fdb\u7a0b\u72b6\u6001", "commits": [], "section": "\u76d1\u63a7", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.9", "source_hash": "7385e6dc9511e1be877eca25e5abe1ae6598a8df39f155a741c11715f7d13855", "section_path": ["\u76d1\u63a7"], "commit_groups": [], "identity_text": "Create a separate pg_stat_activity column to report process state (Scott Mead, Magnus Hagander) The previous query and query_start values now remain available for an idle session, allowing enhanced analysis.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/021", "db_id": "afe2694988fcfba674104dc9e2e9be15", "patch_ids": [], "statement_hash": "211f00ece4f5f565bd86d3d62db4d41f35b4eebb5c90c48dadcf69713936cded", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-6753510ed67e9def", "migration": true}, {"id": "9.2.0-6819edd4d1e6fcb9", "cves": [], "html": "

\u628a pg_stat_activity.current_query \u91cd\u547d\u540d\u4e3a query\uff0c\u56e0\u4e3a\u5b83\u5728\u67e5\u8be2\u5b8c\u6210\u540e\u4e0d\u4f1a\u88ab\u6e05\u9664\uff08Magnus Hagander\uff09\n

", "text": "\u628a pg_stat_activity.current_query \u91cd\u547d\u540d\u4e3a query\uff0c\u56e0\u4e3a\u5b83\u5728\u67e5\u8be2\u5b8c\u6210\u540e\u4e0d\u4f1a\u88ab\u6e05\u9664\uff08Magnus Hagander\uff09", "title": "\u628a pg_stat_activity.current_query \u91cd\u547d\u540d\u4e3a query\uff0c\u56e0\u4e3a\u5b83\u5728\u67e5\u8be2\u5b8c\u6210\u540e\u4e0d\u4f1a\u88ab\u6e05\u9664", "commits": [], "section": "\u76d1\u63a7", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.9", "source_hash": "35331357c2993aa53369aa25ecf2bce8e79a4fc75cbce5aaa1be0e74de62a036", "section_path": ["\u76d1\u63a7"], "commit_groups": [], "identity_text": "Rename pg_stat_activity.current_query to query because it is not cleared when the query completes (Magnus Hagander)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/022", "db_id": "7c88516c204e84fd2eb26f59f64cdfdc", "patch_ids": [], "statement_hash": "3580c6d275d16534c5c35594bc823e593d5530d7bb933cbb4e165881de2c7217", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-6819edd4d1e6fcb9", "migration": true}, {"id": "9.2.0-bb3cdb1ad4ee3524", "cves": [], "html": "

\u628a\u6240\u6709 SQL \u7ea7\u7edf\u8ba1\u8ba1\u65f6\u503c\u6539\u4e3a\u4ee5\u6beb\u79d2\u8ba1\u7684 float8 \u5217\uff08Tom Lane\uff09\n

\u6b64\u53d8\u66f4\u6d88\u9664\u4e86\u8bbe\u8ba1\u4e2d\"\u503c\u7cbe\u786e\u5230\u5fae\u79d2\u4e14\u4ec5\u5230\u5fae\u79d2\"\u7684\u5047\u8bbe\uff08\u56e0\u4e3a float8 \u503c\u53ef\u4ee5\u5e26\u5c0f\u6570\uff09\u3002\u53d7\u5f71\u54cd\u7684\u5217\u6709 pg_stat_user_functions.total_time\u3001pg_stat_user_functions.self_time\u3001pg_stat_xact_user_functions.total_time \u548c pg_stat_xact_user_functions.self_time\u3002\u8fd9\u4e9b\u5217\u5e95\u5c42\u7684\u7edf\u8ba1\u51fd\u6570\u73b0\u5728\u4e5f\u8fd4\u56de float8 \u6beb\u79d2\u800c\u4e0d\u662f bigint \u5fae\u79d2\u3002contrib/pg_stat_statements \u7684 total_time \u5217\u73b0\u5728\u4e5f\u4ee5\u6beb\u79d2\u8ba1\u3002\n

", "text": "\u628a\u6240\u6709 SQL \u7ea7\u7edf\u8ba1\u8ba1\u65f6\u503c\u6539\u4e3a\u4ee5\u6beb\u79d2\u8ba1\u7684 float8 \u5217\uff08Tom Lane\uff09 \u6b64\u53d8\u66f4\u6d88\u9664\u4e86\u8bbe\u8ba1\u4e2d\"\u503c\u7cbe\u786e\u5230\u5fae\u79d2\u4e14\u4ec5\u5230\u5fae\u79d2\"\u7684\u5047\u8bbe\uff08\u56e0\u4e3a float8 \u503c\u53ef\u4ee5\u5e26\u5c0f\u6570\uff09\u3002\u53d7\u5f71\u54cd\u7684\u5217\u6709 pg_stat_user_functions.total_time\u3001pg_stat_user_functions.self_time\u3001pg_stat_xact_user_functions.total_time \u548c pg_stat_xact_user_functions.self_time\u3002\u8fd9\u4e9b\u5217\u5e95\u5c42\u7684\u7edf\u8ba1\u51fd\u6570\u73b0\u5728\u4e5f\u8fd4\u56de float8 \u6beb\u79d2\u800c\u4e0d\u662f bigint \u5fae\u79d2\u3002contrib/pg_stat_statements \u7684 total_time \u5217\u73b0\u5728\u4e5f\u4ee5\u6beb\u79d2\u8ba1\u3002", "title": "\u628a\u6240\u6709 SQL \u7ea7\u7edf\u8ba1\u8ba1\u65f6\u503c\u6539\u4e3a\u4ee5\u6beb\u79d2\u8ba1\u7684 float8 \u5217", "commits": [], "section": "\u76d1\u63a7", "category": "compatibility", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.4.9", "source_hash": "517218fe95fc8bf187f12b76ed3772d7783033d6ec9013746503de407804b4af", "section_path": ["\u76d1\u63a7"], "commit_groups": [], "identity_text": "Change all SQL-level statistics timing values to be float8 columns measured in milliseconds (Tom Lane) This change eliminates the designed-in assumption that the values are accurate to microseconds and no more (since the float8 values can be fractional). The columns affected are pg_stat_user_functions.total_time, pg_stat_user_functions.self_time, pg_stat_xact_user_functions.total_time, and pg_stat_xact_user_functions.self_time. The statistics functions underlying these columns now also return float8 milliseconds, rather than bigint microseconds. contrib/pg_stat_statements' total_time column is now also measured in milliseconds.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/migration/023", "db_id": "12328f64f6dddca361a81f77e51ebb80", "patch_ids": [], "statement_hash": "d1138dd95b024f144f44d24968ffb0b5569789d89a5684e9cb63279f6eb7d4c9", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.2.0#9.2.0-bb3cdb1ad4ee3524", "migration": true}, {"id": "9.2.0-b925f0ae9d1e165d", "cves": [], "html": "

\u5141\u8bb8\u67e5\u8be2\u53ea\u4ece\u7d22\u5f15\u68c0\u7d22\u6570\u636e\uff0c\u907f\u514d\u5806\u8bbf\u95ee\uff08Robert Haas\u3001Ibrar Ahmed\u3001Heikki Linnakangas\u3001Tom Lane\uff09\n

\u6b64\u7279\u6027\u5e38\u79f0\u4e3a\u4ec5\u7d22\u5f15\u626b\u63cf\u3002\u5bf9\u4e8e\u53ea\u5305\u542b\u5bf9\u6240\u6709\u4f1a\u8bdd\u53ef\u89c1\u7684\u5143\u7ec4\u7684\u5806\u9875\uff08\u7531\u53ef\u89c1\u6027\u6620\u5c04\u62a5\u544a\uff09\uff0c\u53ef\u4ee5\u8df3\u8fc7\u5806\u8bbf\u95ee\uff1b\u56e0\u6b64\u8be5\u6536\u76ca\u4e3b\u8981\u9002\u7528\u4e8e\u57fa\u672c\u9759\u6001\u7684\u6570\u636e\u3002\u4f5c\u4e3a\u5b9e\u73b0\u6b64\u7279\u6027\u7684\u5fc5\u8981\u90e8\u5206\uff0c\u53ef\u89c1\u6027\u6620\u5c04\u88ab\u505a\u6210\u4e86\u5d29\u6e83\u5b89\u5168\u7684\u3002\n

", "text": "\u5141\u8bb8\u67e5\u8be2\u53ea\u4ece\u7d22\u5f15\u68c0\u7d22\u6570\u636e\uff0c\u907f\u514d\u5806\u8bbf\u95ee\uff08Robert Haas\u3001Ibrar Ahmed\u3001Heikki Linnakangas\u3001Tom Lane\uff09 \u6b64\u7279\u6027\u5e38\u79f0\u4e3a\u4ec5\u7d22\u5f15\u626b\u63cf\u3002\u5bf9\u4e8e\u53ea\u5305\u542b\u5bf9\u6240\u6709\u4f1a\u8bdd\u53ef\u89c1\u7684\u5143\u7ec4\u7684\u5806\u9875\uff08\u7531\u53ef\u89c1\u6027\u6620\u5c04\u62a5\u544a\uff09\uff0c\u53ef\u4ee5\u8df3\u8fc7\u5806\u8bbf\u95ee\uff1b\u56e0\u6b64\u8be5\u6536\u76ca\u4e3b\u8981\u9002\u7528\u4e8e\u57fa\u672c\u9759\u6001\u7684\u6570\u636e\u3002\u4f5c\u4e3a\u5b9e\u73b0\u6b64\u7279\u6027\u7684\u5fc5\u8981\u90e8\u5206\uff0c\u53ef\u89c1\u6027\u6620\u5c04\u88ab\u505a\u6210\u4e86\u5d29\u6e83\u5b89\u5168\u7684\u3002", "title": "\u5141\u8bb8\u67e5\u8be2\u53ea\u4ece\u7d22\u5f15\u68c0\u7d22\u6570\u636e\uff0c\u907f\u514d\u5806\u8bbf\u95ee", "commits": [], "section": "\u670d\u52a1\u5668 / \u6027\u80fd", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.2", "source_hash": "0a8a951015e6684d482e91af8dba2e6aa2593367fb9fc3b2837a3735a9365736", "section_path": ["\u670d\u52a1\u5668", "\u6027\u80fd"], "commit_groups": [], "identity_text": "Allow queries to retrieve data only from indexes, avoiding heap access (Robert Haas, Ibrar Ahmed, Heikki Linnakangas, Tom Lane) This feature is often called index-only scans. Heap access can be skipped for heap pages containing only tuples that are visible to all sessions, as reported by the visibility map; so the benefit applies mainly to mostly-static data. The visibility map was made crash-safe as a necessary part of implementing this feature.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/001", "db_id": "5ab85856749df93633285cf7a69eb0f3", "patch_ids": [], "statement_hash": "fb7dac412d08b893f1a1988fe396d803fe20e922ee02bed8cd4cd34227fd101f", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-b925f0ae9d1e165d", "migration": false}, {"id": "9.2.0-eeb9b37163818009", "cves": [], "html": "

\u65b0\u589e SP-GiST\uff08\u7a7a\u95f4\u5206\u533a GiST\uff09\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5\uff08Teodor Sigaev\u3001Oleg Bartunov\u3001Tom Lane\uff09\n

SP-GiST \u5728\u7075\u6d3b\u6027\u4e0a\u4e0e GiST \u76f8\u5f53\uff0c\u4f46\u652f\u6301\u975e\u5e73\u8861\u7684\u5206\u533a\u641c\u7d22\u7ed3\u6784\u800c\u4e0d\u662f\u5e73\u8861\u6811\u3002\u5bf9\u4e8e\u5408\u9002\u7684\u95ee\u9898\uff0cSP-GiST \u5728\u7d22\u5f15\u6784\u5efa\u65f6\u95f4\u548c\u641c\u7d22\u65f6\u95f4\u4e0a\u90fd\u53ef\u4ee5\u6bd4 GiST \u66f4\u5feb\u3002\n

", "text": "\u65b0\u589e SP-GiST\uff08\u7a7a\u95f4\u5206\u533a GiST\uff09\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5\uff08Teodor Sigaev\u3001Oleg Bartunov\u3001Tom Lane\uff09 SP-GiST \u5728\u7075\u6d3b\u6027\u4e0a\u4e0e GiST \u76f8\u5f53\uff0c\u4f46\u652f\u6301\u975e\u5e73\u8861\u7684\u5206\u533a\u641c\u7d22\u7ed3\u6784\u800c\u4e0d\u662f\u5e73\u8861\u6811\u3002\u5bf9\u4e8e\u5408\u9002\u7684\u95ee\u9898\uff0cSP-GiST \u5728\u7d22\u5f15\u6784\u5efa\u65f6\u95f4\u548c\u641c\u7d22\u65f6\u95f4\u4e0a\u90fd\u53ef\u4ee5\u6bd4 GiST \u66f4\u5feb\u3002", "title": "\u65b0\u589e SP-GiST\uff08\u7a7a\u95f4\u5206\u533a GiST\uff09\u7d22\u5f15\u8bbf\u95ee\u65b9\u6cd5", "commits": [], "section": "\u670d\u52a1\u5668 / \u6027\u80fd", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.2", "source_hash": "dcdd33cfefc9c972f48d38bba2ac00f5672237a2fd2f2d9c0568a379473bda2f", "section_path": ["\u670d\u52a1\u5668", "\u6027\u80fd"], "commit_groups": [], "identity_text": "Add the SP-GiST (Space-Partitioned GiST) index access method (Teodor Sigaev, Oleg Bartunov, Tom Lane) SP-GiST is comparable to GiST in flexibility, but supports unbalanced partitioned search structures rather than balanced trees. For suitable problems, SP-GiST can be faster than GiST in both index build time and search time.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/002", "db_id": "f93ecf41d795fd0e941da20eaa3480ab", "patch_ids": [], "statement_hash": "b84a32397ec0193f5530f400dfaf877173b0d674ce1bbbd6e0b185909e93355c", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-eeb9b37163818009", "migration": false}, {"id": "9.2.0-cd595d8c1fc673f5", "cves": [], "html": "

\u5141\u8bb8\u7ec4\u63d0\u4ea4\u5728\u9ad8\u8d1f\u8f7d\u4e0b\u6709\u6548\u5de5\u4f5c\uff08Peter Geoghegan\u3001Simon Riggs\u3001Heikki Linnakangas\uff09\n

\u6b64\u524d\uff0c\u968f\u7740\u5199\u8d1f\u8f7d\u589e\u52a0\uff0c\u7531\u4e8e\u5185\u90e8\u9501\u7ade\u4e89\uff0c\u63d0\u4ea4\u6279\u5904\u7406\u53d8\u5f97\u65e0\u6548\u3002\n

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", "text": "\u4f7f CLOG \u7f13\u51b2\u533a\u6570\u91cf\u57fa\u4e8e shared_buffers \u7f29\u653e\uff08Robert Haas\u3001Simon Riggs\u3001Tom Lane\uff09", "title": "\u4f7f CLOG \u7f13\u51b2\u533a\u6570\u91cf\u57fa\u4e8e shared_buffers \u7f29\u653e", "commits": [], "section": "\u670d\u52a1\u5668 / \u6027\u80fd", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.2", "source_hash": "a8bf6388bcc747a37e3427572cc312122f22d4992526e2bc9861a21dc4862832", "section_path": ["\u670d\u52a1\u5668", "\u6027\u80fd"], "commit_groups": [], "identity_text": "Make the number of CLOG buffers scale based on shared_buffers (Robert Haas, Simon Riggs, Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/015", "db_id": "d7f93b21700f7f678da3c306bf8cef8d", "patch_ids": [], "statement_hash": "163108592cf975285f3fcc6b37b9d227b585a5aabb5638224a881ad19628906e", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-569155780d00673e", "migration": false}, {"id": "9.2.0-3e001c925a7f258d", "cves": [], "html": "

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", "text": "\u6539\u8fdb\u5220\u9664\u8868\u6216\u6570\u636e\u5e93\u65f6\u53d1\u751f\u7684\u7f13\u51b2\u6c60\u626b\u63cf\u7684\u6027\u80fd\uff08Jeff Janes\u3001Simon Riggs\uff09", "title": "\u6539\u8fdb\u5220\u9664\u8868\u6216\u6570\u636e\u5e93\u65f6\u53d1\u751f\u7684\u7f13\u51b2\u6c60\u626b\u63cf\u7684\u6027\u80fd", "commits": [], "section": "\u670d\u52a1\u5668 / \u6027\u80fd", "category": "performance", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.2", "source_hash": "7bd3e33e8e31151c8923acf966396c682c9d4c7feaffcd9ce2ef8572f3d4f14c", "section_path": ["\u670d\u52a1\u5668", "\u6027\u80fd"], "commit_groups": [], "identity_text": "Improve performance of buffer pool scans that occur when tables or databases are dropped (Jeff Janes, Simon Riggs)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/016", "db_id": "172f48c22faa9e3e4079a13b08bacf63", "patch_ids": [], "statement_hash": "a0895d10729dfeaec8922d4073e081a5bf0614dd4cc4c640ae3b020f4e27409f", "relations": [], "category_label": "\u6027\u80fd\u6539\u8fdb", "url": "/docs/compare/?release=9.2.0#9.2.0-3e001c925a7f258d", "migration": false}, {"id": "9.2.0-fe7626911c83bc11", "cves": [], "html": "

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", "text": "\u6539\u8fdb\u5220\u9664\u6216\u622a\u65ad\u5927\u91cf\u8868\u65f6\u68c0\u67e5\u70b9\u8fdb\u7a0b fsync \u8bf7\u6c42\u961f\u5217\u7684\u6027\u80fd\uff08Tom Lane\uff09", "title": "\u6539\u8fdb\u5220\u9664\u6216\u622a\u65ad\u5927\u91cf\u8868\u65f6\u68c0\u67e5\u70b9\u8fdb\u7a0b fsync \u8bf7\u6c42\u961f\u5217\u7684\u6027\u80fd", "commits": [], "section": "\u670d\u52a1\u5668 / \u6027\u80fd", "category": "performance", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.2", "source_hash": "02b45d191bfb514adc5c4554a19ec35f04ef487693b80cf9cb516324fca74cee", "section_path": ["\u670d\u52a1\u5668", "\u6027\u80fd"], "commit_groups": [], "identity_text": "Improve performance of checkpointer's fsync-request queue when many tables are being dropped or truncated (Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/017", "db_id": "b19db89c44fc708ef64398cd4e179da6", "patch_ids": [], "statement_hash": "a837bddb12e064eab60c43d5c07d0fe1b10be499e5ae584f0e95e006fefb13ba", "relations": [], "category_label": "\u6027\u80fd\u6539\u8fdb", "url": "/docs/compare/?release=9.2.0#9.2.0-fe7626911c83bc11", "migration": false}, {"id": "9.2.0-24ce1a18a8f8da04", "cves": [], "html": "

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", "text": "\u5728 Windows \u4e0a\u628a\u5b89\u5168\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6570\u91cf\u4f20\u9012\u7ed9\u5b50\u8fdb\u7a0b\uff08Heikki Linnakangas\uff09 \u8fd9\u5141\u8bb8 Windows \u4f1a\u8bdd\u4f7f\u7528\u6bd4\u4ee5\u524d\u66f4\u591a\u7684\u6253\u5f00\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002", "title": "\u5728 Windows \u4e0a\u628a\u5b89\u5168\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6570\u91cf\u4f20\u9012\u7ed9\u5b50\u8fdb\u7a0b", "commits": [], "section": "\u670d\u52a1\u5668 / \u6027\u80fd", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.2", "source_hash": "4112f9654b6df4db03742a3114a1b1292f92fe71f68c81f4ce28e51e06cb201c", "section_path": ["\u670d\u52a1\u5668", "\u6027\u80fd"], "commit_groups": [], "identity_text": "Pass the safe number of file descriptors to child processes on Windows (Heikki Linnakangas) This allows Windows sessions to use more open file descriptors than before.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/018", "db_id": "908305c0f8faf2c0cb8515efa491dd86", "patch_ids": [], "statement_hash": "91aada79b95b32065bf6bcd21b1dbb56951b8b3756bb65acc7d50bd262001a63", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-24ce1a18a8f8da04", "migration": false}, {"id": "9.2.0-3db26bf9c2e046d0", "cves": [], "html": "

\u521b\u5efa\u4e13\u95e8\u7684\u540e\u53f0\u8fdb\u7a0b\u6765\u6267\u884c\u68c0\u67e5\u70b9\uff08Simon Riggs\uff09\n

\u6b64\u524d\u540e\u53f0\u5199\u5165\u8fdb\u7a0b\u65e2\u5199\u810f\u9875\u53c8\u505a\u68c0\u67e5\u70b9\u3002\u628a\u8fd9\u4e24\u9879\u5de5\u4f5c\u5206\u5230\u4e24\u4e2a\u8fdb\u7a0b\u4f7f\u6bcf\u4e2a\u76ee\u6807\u90fd\u80fd\u66f4\u53ef\u9884\u671f\u5730\u5b8c\u6210\u3002\n

", "text": "\u521b\u5efa\u4e13\u95e8\u7684\u540e\u53f0\u8fdb\u7a0b\u6765\u6267\u884c\u68c0\u67e5\u70b9\uff08Simon Riggs\uff09 \u6b64\u524d\u540e\u53f0\u5199\u5165\u8fdb\u7a0b\u65e2\u5199\u810f\u9875\u53c8\u505a\u68c0\u67e5\u70b9\u3002\u628a\u8fd9\u4e24\u9879\u5de5\u4f5c\u5206\u5230\u4e24\u4e2a\u8fdb\u7a0b\u4f7f\u6bcf\u4e2a\u76ee\u6807\u90fd\u80fd\u66f4\u53ef\u9884\u671f\u5730\u5b8c\u6210\u3002", "title": "\u521b\u5efa\u4e13\u95e8\u7684\u540e\u53f0\u8fdb\u7a0b\u6765\u6267\u884c\u68c0\u67e5\u70b9", "commits": [], "section": "\u670d\u52a1\u5668 / \u8fdb\u7a0b\u7ba1\u7406", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.3", "source_hash": "d43619fb9026c82ab4fd7595c7d70b0e7309e7cbe27565d379e37ba074deb39c", "section_path": ["\u670d\u52a1\u5668", "\u8fdb\u7a0b\u7ba1\u7406"], "commit_groups": [], "identity_text": "Create a dedicated background process to perform checkpoints (Simon Riggs) Formerly the background writer did both dirty-page writing and checkpointing. Separating this into two processes allows each goal to be accomplished more predictably.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/019", "db_id": "c25e652f7e6d51dcda538110511f5bd6", "patch_ids": [], "statement_hash": "4a3ce0e448057323d76f36c5b00f4271c2cafe3dfa38498213b71823a3ea7839", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-3db26bf9c2e046d0", "migration": false}, {"id": "9.2.0-e89f95da5a3573ad", "cves": [], "html": "

\u901a\u8fc7\u66f4\u65e9\u5524\u9192 walwriter \u6765\u6539\u8fdb\u5f02\u6b65\u63d0\u4ea4\u884c\u4e3a\uff08Simon Riggs\uff09\n

\u6b64\u524d\u53ea\u6709 wal_writer_delay \u89e6\u53d1 WAL \u5237\u76d8\uff1b\u73b0\u5728\u586b\u6ee1 WAL \u7f13\u51b2\u533a\u4e5f\u4f1a\u89e6\u53d1 WAL \u5199\u5165\u3002\n

", "text": "\u901a\u8fc7\u66f4\u65e9\u5524\u9192 walwriter \u6765\u6539\u8fdb\u5f02\u6b65\u63d0\u4ea4\u884c\u4e3a\uff08Simon Riggs\uff09 \u6b64\u524d\u53ea\u6709 wal_writer_delay \u89e6\u53d1 WAL \u5237\u76d8\uff1b\u73b0\u5728\u586b\u6ee1 WAL \u7f13\u51b2\u533a\u4e5f\u4f1a\u89e6\u53d1 WAL \u5199\u5165\u3002", "title": "\u901a\u8fc7\u66f4\u65e9\u5524\u9192 walwriter \u6765\u6539\u8fdb\u5f02\u6b65\u63d0\u4ea4\u884c\u4e3a", "commits": [], "section": "\u670d\u52a1\u5668 / \u8fdb\u7a0b\u7ba1\u7406", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.3", "source_hash": "a49c3df4fb3233b513277c3661b9eb3d6c8432d0e040c1cfbce7fbf60364c467", "section_path": ["\u670d\u52a1\u5668", "\u8fdb\u7a0b\u7ba1\u7406"], "commit_groups": [], "identity_text": "Improve asynchronous commit behavior by waking the walwriter sooner (Simon Riggs) Previously, only wal_writer_delay triggered WAL flushing to disk; now filling a WAL buffer also triggers WAL writes.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/020", "db_id": "e2a5595417729b1982844833e0ecc332", "patch_ids": [], "statement_hash": "870db781a275ced9414f57dffd68f891fe67e15d32c525c7257908e9086dcf48", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-e89f95da5a3573ad", "migration": false}, {"id": "9.2.0-33b70dd7e73b1d28", "cves": [], "html": "

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", "text": "\u5141\u8bb8 bgwriter\u3001walwriter\u3001checkpointer\u3001\u7edf\u8ba1\u6536\u96c6\u5668\u3001\u65e5\u5fd7\u6536\u96c6\u5668\u548c\u5f52\u6863\u5668\u7b49\u540e\u53f0\u8fdb\u7a0b\u5728\u7a7a\u95f2\u671f\u95f4\u66f4\u9ad8\u6548\u5730\u4f11\u7720\uff08Peter Geoghegan\u3001Tom Lane\uff09 \u8fd9\u4e00\u7cfb\u5217\u53d8\u66f4\u964d\u4f4e\u4e86\u65e0\u4e8b\u53ef\u505a\u65f6\u8fdb\u7a0b\u5524\u9192\u7684\u9891\u7387\uff0c\u5927\u5e45\u964d\u4f4e\u4e86\u7a7a\u95f2\u670d\u52a1\u5668\u7684\u529f\u8017\u3002", "title": "\u5141\u8bb8 bgwriter\u3001walwriter\u3001checkpointer\u3001\u7edf\u8ba1\u6536\u96c6\u5668\u3001\u65e5\u5fd7\u6536\u96c6\u5668\u548c\u5f52\u6863\u5668\u7b49\u540e\u53f0\u8fdb\u7a0b\u5728\u7a7a\u95f2\u671f\u95f4\u66f4\u9ad8\u6548\u5730\u4f11\u7720", "commits": [], "section": "\u670d\u52a1\u5668 / \u8fdb\u7a0b\u7ba1\u7406", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.3", "source_hash": "e7ddefeab85e8191cd49d558c15546c2d9185b6fa453862042cda03d89f1eb5d", "section_path": ["\u670d\u52a1\u5668", "\u8fdb\u7a0b\u7ba1\u7406"], "commit_groups": [], "identity_text": "Allow the bgwriter, walwriter, checkpointer, statistics collector, log collector, and archiver background processes to sleep more efficiently during periods of inactivity (Peter Geoghegan, Tom Lane) This series of changes reduces the frequency of process wake-ups when there is nothing to do, dramatically reducing power consumption on idle servers.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/021", "db_id": "5fb2b6034d01d348999afc04d56be161", "patch_ids": [], "statement_hash": "4c30d9fca239e393c79063d052ed5ca331c324eebc443fa5852a380bea6bd0be", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-33b70dd7e73b1d28", "migration": false}, {"id": "9.2.0-e65adfdecaa64e44", "cves": [], "html": "

\u5141\u8bb8\u89c4\u5212\u5668\u5373\u4f7f\u5728\u4f7f\u7528\u9884\u5907\u8bed\u53e5\u65f6\uff0c\u4e5f\u4e3a\u7279\u5b9a\u53c2\u6570\u503c\u751f\u6210\u5b9a\u5236\u8ba1\u5212\uff08Tom Lane\uff09\n

\u8fc7\u53bb\uff0c\u9884\u5907\u8bed\u53e5\u603b\u662f\u53ea\u6709\u4e00\u4e2a\u7528\u4e8e\u6240\u6709\u53c2\u6570\u503c\u7684\u201c\u901a\u7528\u201d\u8ba1\u5212\uff0c\u5b83\u5e38\u5e38\u8fdc\u4e0d\u5982\u7528\u4e8e\u5305\u542b\u663e\u5f0f\u5e38\u91cf\u503c\u7684\u975e\u9884\u5907\u8bed\u53e5\u7684\u8ba1\u5212\u3002\u73b0\u5728\uff0c\u89c4\u5212\u5668\u4f1a\u5c1d\u8bd5\u4e3a\u7279\u5b9a\u53c2\u6570\u503c\u751f\u6210\u5b9a\u5236\u8ba1\u5212\u3002\u53ea\u6709\u5f53\u5b9a\u5236\u8ba1\u5212\u53cd\u590d\u88ab\u8bc1\u660e\u6ca1\u6709\u6536\u76ca\u65f6\uff0c\u624d\u4f1a\u4f7f\u7528\u901a\u7528\u8ba1\u5212\u3002\u6b64\u53d8\u66f4\u5e94\u80fd\u6d88\u9664\u6b64\u524d\u4f7f\u7528\u9884\u5907\u8bed\u53e5\uff08\u5305\u62ec PL/pgSQL \u4e2d\u7684\u975e\u52a8\u6001\u8bed\u53e5\uff09\u6240\u89c1\u7684\u6027\u80fd\u635f\u5931\u3002\n

", "text": "\u5141\u8bb8\u89c4\u5212\u5668\u5373\u4f7f\u5728\u4f7f\u7528\u9884\u5907\u8bed\u53e5\u65f6\uff0c\u4e5f\u4e3a\u7279\u5b9a\u53c2\u6570\u503c\u751f\u6210\u5b9a\u5236\u8ba1\u5212\uff08Tom Lane\uff09 \u8fc7\u53bb\uff0c\u9884\u5907\u8bed\u53e5\u603b\u662f\u53ea\u6709\u4e00\u4e2a\u7528\u4e8e\u6240\u6709\u53c2\u6570\u503c\u7684\u201c\u901a\u7528\u201d\u8ba1\u5212\uff0c\u5b83\u5e38\u5e38\u8fdc\u4e0d\u5982\u7528\u4e8e\u5305\u542b\u663e\u5f0f\u5e38\u91cf\u503c\u7684\u975e\u9884\u5907\u8bed\u53e5\u7684\u8ba1\u5212\u3002\u73b0\u5728\uff0c\u89c4\u5212\u5668\u4f1a\u5c1d\u8bd5\u4e3a\u7279\u5b9a\u53c2\u6570\u503c\u751f\u6210\u5b9a\u5236\u8ba1\u5212\u3002\u53ea\u6709\u5f53\u5b9a\u5236\u8ba1\u5212\u53cd\u590d\u88ab\u8bc1\u660e\u6ca1\u6709\u6536\u76ca\u65f6\uff0c\u624d\u4f1a\u4f7f\u7528\u901a\u7528\u8ba1\u5212\u3002\u6b64\u53d8\u66f4\u5e94\u80fd\u6d88\u9664\u6b64\u524d\u4f7f\u7528\u9884\u5907\u8bed\u53e5\uff08\u5305\u62ec PL/pgSQL \u4e2d\u7684\u975e\u52a8\u6001\u8bed\u53e5\uff09\u6240\u89c1\u7684\u6027\u80fd\u635f\u5931\u3002", "title": "\u5141\u8bb8\u89c4\u5212\u5668\u5373\u4f7f\u5728\u4f7f\u7528\u9884\u5907\u8bed\u53e5\u65f6\uff0c\u4e5f\u4e3a\u7279\u5b9a\u53c2\u6570\u503c\u751f\u6210\u5b9a\u5236\u8ba1\u5212", "commits": [], "section": "\u670d\u52a1\u5668 / \u4f18\u5316\u5668", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.4", "source_hash": "0c9a7145ff3fadec1ce007c6143677a8e197b5dd904a6eb306fbe608a0cd0877", "section_path": ["\u670d\u52a1\u5668", "\u4f18\u5316\u5668"], "commit_groups": [], "identity_text": "Allow the planner to generate custom plans for specific parameter values even when using prepared statements (Tom Lane) In the past, a prepared statement always had a single generic plan that was used for all parameter values, which was frequently much inferior to the plans used for non-prepared statements containing explicit constant values. Now, the planner attempts to generate custom plans for specific parameter values. A generic plan will only be used after custom plans have repeatedly proven to provide no benefit. This change should eliminate the performance penalties formerly seen from use of prepared statements (including non-dynamic statements in PL/pgSQL).", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/022", "db_id": "df55f3b0f46a86701d43018414395c6b", "patch_ids": [], "statement_hash": "517b7ea813ea8851fb33249e22414f9d0a4d0027bfe3b468f72e575f3e81db06", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-e65adfdecaa64e44", "migration": false}, {"id": "9.2.0-e3b4a9884967d4d7", "cves": [], "html": "

\u6539\u8fdb\u89c4\u5212\u5668\u4f7f\u7528\u5185\u5c42\u7d22\u5f15\u626b\u63cf\u7684\u5d4c\u5957\u5faa\u73af\u7684\u80fd\u529b\uff08Tom Lane\uff09\n

\u65b0\u7684\u201c\u53c2\u6570\u5316\u8def\u5f84\u201d\u673a\u5236\u5141\u8bb8\u5185\u5c42\u7d22\u5f15\u626b\u63cf\u4f7f\u7528\u6765\u81ea\u6bd4\u626b\u63cf\u9ad8\u591a\u4e2a\u8fde\u63a5\u5c42\u7ea7\u7684\u5173\u7cfb\u7684\u503c\u3002\u5728\u8bed\u4e49\u9650\u5236\uff08\u5982\u5916\u8fde\u63a5\uff09\u9650\u5b9a\u5141\u8bb8\u8fde\u63a5\u987a\u5e8f\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd9\u53ef\u4ee5\u5927\u5e45\u63d0\u5347\u6027\u80fd\u3002\n

", "text": "\u6539\u8fdb\u89c4\u5212\u5668\u4f7f\u7528\u5185\u5c42\u7d22\u5f15\u626b\u63cf\u7684\u5d4c\u5957\u5faa\u73af\u7684\u80fd\u529b\uff08Tom Lane\uff09 \u65b0\u7684\u201c\u53c2\u6570\u5316\u8def\u5f84\u201d\u673a\u5236\u5141\u8bb8\u5185\u5c42\u7d22\u5f15\u626b\u63cf\u4f7f\u7528\u6765\u81ea\u6bd4\u626b\u63cf\u9ad8\u591a\u4e2a\u8fde\u63a5\u5c42\u7ea7\u7684\u5173\u7cfb\u7684\u503c\u3002\u5728\u8bed\u4e49\u9650\u5236\uff08\u5982\u5916\u8fde\u63a5\uff09\u9650\u5b9a\u5141\u8bb8\u8fde\u63a5\u987a\u5e8f\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd9\u53ef\u4ee5\u5927\u5e45\u63d0\u5347\u6027\u80fd\u3002", "title": "\u6539\u8fdb\u89c4\u5212\u5668\u4f7f\u7528\u5185\u5c42\u7d22\u5f15\u626b\u63cf\u7684\u5d4c\u5957\u5faa\u73af\u7684\u80fd\u529b", "commits": [], "section": "\u670d\u52a1\u5668 / \u4f18\u5316\u5668", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.4", "source_hash": "e0542585ebcff6ccaac357f4a35654bf44ba67f38ddf47b84b599d7e572ec0bb", "section_path": ["\u670d\u52a1\u5668", "\u4f18\u5316\u5668"], "commit_groups": [], "identity_text": "Improve the planner's ability to use nested loops with inner index scans (Tom Lane) The new parameterized path mechanism allows inner index scans to use values from relations that are more than one join level up from the scan. This can greatly improve performance in situations where semantic restrictions (such as outer joins) limit the allowed join orderings.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/023", "db_id": "e4b17b9787a9bd365d6cca68157b2d0f", "patch_ids": [], "statement_hash": "ba1ec09fad868eec7f869134fd9facba9fc7e643e6d14e7bcf4c5f8c83a7910d", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-e3b4a9884967d4d7", "migration": false}, {"id": "9.2.0-110025fe266e778f", "cves": [], "html": "

\u6539\u8fdb\u5916\u90e8\u6570\u636e\u5305\u88c5\u5668\u7684\u89c4\u5212 API\uff08Etsuro Fujita\u3001Shigeru Hanada\u3001Tom Lane\uff09\n

\u5305\u88c5\u5668\u73b0\u5728\u53ef\u4ee5\u4e3a\u5176\u8868\u63d0\u4f9b\u591a\u4e2a\u8bbf\u95ee\u201c\u8def\u5f84\u201d\uff0c\u4f7f\u8fde\u63a5\u89c4\u5212\u66f4\u52a0\u7075\u6d3b\u3002\n

", "text": "\u6539\u8fdb\u5916\u90e8\u6570\u636e\u5305\u88c5\u5668\u7684\u89c4\u5212 API\uff08Etsuro Fujita\u3001Shigeru Hanada\u3001Tom Lane\uff09 \u5305\u88c5\u5668\u73b0\u5728\u53ef\u4ee5\u4e3a\u5176\u8868\u63d0\u4f9b\u591a\u4e2a\u8bbf\u95ee\u201c\u8def\u5f84\u201d\uff0c\u4f7f\u8fde\u63a5\u89c4\u5212\u66f4\u52a0\u7075\u6d3b\u3002", "title": "\u6539\u8fdb\u5916\u90e8\u6570\u636e\u5305\u88c5\u5668\u7684\u89c4\u5212 API", "commits": [], "section": "\u670d\u52a1\u5668 / \u4f18\u5316\u5668", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.4", "source_hash": "4fd193b9f59b1b83c111c438d6553742f99378c5aa26971010683f0acdac6672", "section_path": ["\u670d\u52a1\u5668", "\u4f18\u5316\u5668"], "commit_groups": [], "identity_text": "Improve the planning API for foreign data wrappers (Etsuro Fujita, Shigeru Hanada, Tom Lane) Wrappers can now provide multiple access paths for their tables, allowing more flexibility in join planning.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/024", "db_id": "2a1734d59f11b79d2f8ec76190e5d73f", "patch_ids": [], "statement_hash": "b1caee1e565789669cf56ed264bd7348e55f11bb85b683366f950c77ded93e28", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-110025fe266e778f", "migration": false}, {"id": "9.2.0-d7fac5f4286f1e87", "cves": [], "html": "

\u8bc6\u522b\u975e\u8868\u5173\u7cfb\u7684\u81ea\u76f8\u77db\u76fe\u9650\u5b9a\u5b50\u53e5\uff08Tom Lane\uff09\n

\u53ea\u6709\u5f53 constraint_exclusion \u4e3a on \u65f6\u624d\u6267\u884c\u6b64\u68c0\u67e5\u3002\n

", "text": "\u8bc6\u522b\u975e\u8868\u5173\u7cfb\u7684\u81ea\u76f8\u77db\u76fe\u9650\u5b9a\u5b50\u53e5\uff08Tom Lane\uff09 \u53ea\u6709\u5f53 constraint_exclusion \u4e3a on \u65f6\u624d\u6267\u884c\u6b64\u68c0\u67e5\u3002", "title": "\u8bc6\u522b\u975e\u8868\u5173\u7cfb\u7684\u81ea\u76f8\u77db\u76fe\u9650\u5b9a\u5b50\u53e5", "commits": [], "section": "\u670d\u52a1\u5668 / \u4f18\u5316\u5668", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.4", "source_hash": "006ee77d82687de3b63d7eb98a491efb7cfb74e13bad6b7eb7df4f0500b43e88", "section_path": ["\u670d\u52a1\u5668", "\u4f18\u5316\u5668"], "commit_groups": [], "identity_text": "Recognize self-contradictory restriction clauses for non-table relations (Tom Lane) This check is only performed when constraint_exclusion is on.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/025", "db_id": "489c593de4eb9d56ada90700464daa4e", "patch_ids": [], "statement_hash": "65de46c62284b962957bb7058db361602fb00f7628596b349f3c9bbd1b5fb33b", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-d7fac5f4286f1e87", "migration": false}, {"id": "9.2.0-abde6ce521744786", "cves": [], "html": "

\u5141\u8bb8 indexed_col op ANY(ARRAY[...]) \u6761\u4ef6\u7528\u4e8e\u666e\u901a\u7d22\u5f15\u626b\u63cf\u548c\u4ec5\u7d22\u5f15\u626b\u63cf\uff08Tom Lane\uff09\n

\u6b64\u524d\u8fd9\u7c7b\u6761\u4ef6\u53ea\u80fd\u7528\u4e8e\u4f4d\u56fe\u7d22\u5f15\u626b\u63cf\u3002\n

", "text": "\u5141\u8bb8 indexed_col op ANY(ARRAY[...]) \u6761\u4ef6\u7528\u4e8e\u666e\u901a\u7d22\u5f15\u626b\u63cf\u548c\u4ec5\u7d22\u5f15\u626b\u63cf\uff08Tom Lane\uff09 \u6b64\u524d\u8fd9\u7c7b\u6761\u4ef6\u53ea\u80fd\u7528\u4e8e\u4f4d\u56fe\u7d22\u5f15\u626b\u63cf\u3002", "title": "\u5141\u8bb8 indexed_col op ANY(ARRAY[...]) \u6761\u4ef6\u7528\u4e8e\u666e\u901a\u7d22\u5f15\u626b\u63cf\u548c\u4ec5\u7d22\u5f15\u626b\u63cf", "commits": [], "section": "\u670d\u52a1\u5668 / \u4f18\u5316\u5668", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.4", "source_hash": "70db34f7b0d9bb6b4264a9eedc96eff7eba2e2e6fdac0efbc8585f7a6fec9198", "section_path": ["\u670d\u52a1\u5668", "\u4f18\u5316\u5668"], "commit_groups": [], "identity_text": "Allow indexed_col op ANY(ARRAY[...]) conditions to be used in plain index scans and index-only scans (Tom Lane) Formerly such conditions could only be used in bitmap index scans.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/026", "db_id": "0abd060647be425089239a6ccd6757a4", "patch_ids": [], "statement_hash": "1a9d13c22e75aeb8873f86389a636aa86c69c5fec1d19709514fcff8ae42ad99", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-abde6ce521744786", "migration": false}, {"id": "9.2.0-6740d1003a3433e2", "cves": [], "html": "

\u652f\u6301\u5728 boolean \u5217\u4e0a\u4f7f\u7528 MIN/MAX \u7d22\u5f15\u4f18\u5316\uff08Marti Raudsepp\uff09\n

", "text": "\u652f\u6301\u5728 boolean \u5217\u4e0a\u4f7f\u7528 MIN/MAX \u7d22\u5f15\u4f18\u5316\uff08Marti Raudsepp\uff09", "title": "\u652f\u6301\u5728 boolean \u5217\u4e0a\u4f7f\u7528 MIN/MAX \u7d22\u5f15\u4f18\u5316", "commits": [], "section": "\u670d\u52a1\u5668 / \u4f18\u5316\u5668", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.4", "source_hash": "4d61fe2a7e98c8d7743e108359e018a19cf2786da64e8edaa390f3c49dcc20c2", "section_path": ["\u670d\u52a1\u5668", "\u4f18\u5316\u5668"], "commit_groups": [], "identity_text": "Support MIN/MAX index optimizations on boolean columns (Marti Raudsepp)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/027", "db_id": "ab0a1f4b2448854e8fe7a36e8e6138f9", "patch_ids": [], "statement_hash": "964c4b52dd37791a85e84f91f9ef54eaefba348f95d77b0b037f42237482c734", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-6740d1003a3433e2", "migration": false}, {"id": "9.2.0-34fd505b924fd518", "cves": [], "html": "

\u5728\u8bbe\u7f6e\u884c\u6570\u4f30\u8ba1\u65f6\uff0c\u628a SELECT \u76ee\u6807\u5217\u8868\u4e2d\u7684\u96c6\u5408\u8fd4\u56de\u51fd\u6570\u8003\u8651\u5728\u5185\uff08Tom Lane\uff09\n

", "text": "\u5728\u8bbe\u7f6e\u884c\u6570\u4f30\u8ba1\u65f6\uff0c\u628a SELECT \u76ee\u6807\u5217\u8868\u4e2d\u7684\u96c6\u5408\u8fd4\u56de\u51fd\u6570\u8003\u8651\u5728\u5185\uff08Tom Lane\uff09", "title": "\u5728\u8bbe\u7f6e\u884c\u6570\u4f30\u8ba1\u65f6\uff0c\u628a SELECT \u76ee\u6807\u5217\u8868\u4e2d\u7684\u96c6\u5408\u8fd4\u56de\u51fd\u6570\u8003\u8651\u5728\u5185", "commits": [], "section": "\u670d\u52a1\u5668 / \u4f18\u5316\u5668", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.4", "source_hash": "f2149b8b42c0496ab398d33cf58a3f524ff83c4304a5cfa03921e31bffd90c33", "section_path": ["\u670d\u52a1\u5668", "\u4f18\u5316\u5668"], "commit_groups": [], "identity_text": "Account for set-returning functions in SELECT target lists when setting row count estimates (Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/028", "db_id": "5929ffc0066e4774f4553d983e423633", "patch_ids": [], "statement_hash": "200314dfa24326d7258c7bfced70d192d6b097f19c8a62a333c1f715a4b5448d", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-34fd505b924fd518", "migration": false}, {"id": "9.2.0-306f88ee2dc42ea1", "cves": [], "html": "

\u4fee\u590d\u89c4\u5212\u5668\uff0c\u4f7f\u5176\u66f4\u53ef\u9760\u5730\u5904\u7406\u542b\u91cd\u590d\u5217\u7684\u7d22\u5f15\uff08Tom Lane\uff09\n

", "text": "\u4fee\u590d\u89c4\u5212\u5668\uff0c\u4f7f\u5176\u66f4\u53ef\u9760\u5730\u5904\u7406\u542b\u91cd\u590d\u5217\u7684\u7d22\u5f15\uff08Tom Lane\uff09", "title": "\u4fee\u590d\u89c4\u5212\u5668\uff0c\u4f7f\u5176\u66f4\u53ef\u9760\u5730\u5904\u7406\u542b\u91cd\u590d\u5217\u7684\u7d22\u5f15", "commits": [], "section": "\u670d\u52a1\u5668 / \u4f18\u5316\u5668", "category": "bugfix", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.4", "source_hash": "46ac873435d790c378db3f0e408105712d55f38594574cfe4280bb67d63cbb5e", "section_path": ["\u670d\u52a1\u5668", "\u4f18\u5316\u5668"], "commit_groups": [], "identity_text": "Fix planner to handle indexes with duplicated columns more reliably (Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/029", "db_id": "3a3a766da7538d95b61fca3276e4e35d", "patch_ids": [], "statement_hash": "1e24f238f423d2b83ee763f588de830f91a9d2415e34a9dcbde1b877b7e5f15f", "relations": [], "category_label": "BUG \u4fee\u590d", "url": "/docs/compare/?release=9.2.0#9.2.0-306f88ee2dc42ea1", "migration": false}, {"id": "9.2.0-2bd496392b7fbb09", "cves": [], "html": "

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\u6b64\u65e5\u5fd7\u7531 log_autovacuum_min_duration \u89e6\u53d1\u3002\n

", "text": "\u8ba9\u81ea\u52a8\u6e05\u7406 I/O \u6d3b\u52a8\u7684\u65e5\u5fd7\u66f4\u8be6\u7ec6\uff08Greg Smith\u3001Noah Misch\uff09 \u6b64\u65e5\u5fd7\u7531 log_autovacuum_min_duration \u89e6\u53d1\u3002", "title": "\u8ba9\u81ea\u52a8\u6e05\u7406 I/O \u6d3b\u52a8\u7684\u65e5\u5fd7\u66f4\u8be6\u7ec6", "commits": [], "section": "\u670d\u52a1\u5668 / \u76d1\u63a7", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.6", "source_hash": "36a27dfbbd6522fb819cfecbcae8e8b07bca6c9280ca158b712011abee2e3cab", "section_path": ["\u670d\u52a1\u5668", "\u76d1\u63a7"], "commit_groups": [], "identity_text": "Make logging of autovacuum I/O activity more verbose (Greg Smith, Noah Misch) This logging is triggered by log_autovacuum_min_duration.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/040", "db_id": "d61b5d3d453c66ba7622cf8746ef2168", "patch_ids": [], "statement_hash": "dc507633bd697d6a88bc759dc8032d7d6cb5c685db774c492f0fb9ea310921ba", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-64c3e023312dfd68", "migration": false}, {"id": "9.2.0-396aab2f2f7151b4", "cves": [], "html": "

\u8ba9 WAL \u91cd\u653e\u66f4\u65e9\u62a5\u544a\u5931\u8d25\uff08Fujii Masao\uff09\n

\u6709\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5931\u8d25\u76f4\u5230\u670d\u52a1\u5668\u8fdb\u5165\u4e3b\u5e93\u6a21\u5f0f\u624d\u88ab\u62a5\u544a\u3002\n

", "text": "\u8ba9 WAL \u91cd\u653e\u66f4\u65e9\u62a5\u544a\u5931\u8d25\uff08Fujii Masao\uff09 \u6709\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5931\u8d25\u76f4\u5230\u670d\u52a1\u5668\u8fdb\u5165\u4e3b\u5e93\u6a21\u5f0f\u624d\u88ab\u62a5\u544a\u3002", "title": "\u8ba9 WAL \u91cd\u653e\u66f4\u65e9\u62a5\u544a\u5931\u8d25", "commits": [], "section": "\u670d\u52a1\u5668 / \u76d1\u63a7", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.6", "source_hash": "ca5394c20f5e39231549f0d99deaa1f0ef38470ad14cb37da1d4fd9fc9417242", "section_path": ["\u670d\u52a1\u5668", "\u76d1\u63a7"], "commit_groups": [], "identity_text": "Make WAL replay report failures sooner (Fujii Masao) There were some cases where failures were only reported once the server went into master mode.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/041", "db_id": "fedad4c528c74a91a4256a78b781059b", "patch_ids": [], "statement_hash": "e38f3db9b10093474dd1188dcbe4165aacc9b31c6444e7dc3b524a1fd1ad6d79", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-396aab2f2f7151b4", "migration": false}, {"id": "9.2.0-52ae2481bb263958", "cves": [], "html": "

\u65b0\u589e pg_xlog_location_diff()\uff0c\u7b80\u5316 WAL \u4f4d\u7f6e\u6bd4\u8f83\uff08Euler Taveira de Oliveira\uff09\n

\u8fd9\u5bf9\u4e8e\u8ba1\u7b97\u590d\u5236\u5ef6\u8fdf\u5f88\u6709\u7528\u3002\n

", "text": "\u65b0\u589e pg_xlog_location_diff()\uff0c\u7b80\u5316 WAL \u4f4d\u7f6e\u6bd4\u8f83\uff08Euler Taveira de Oliveira\uff09 \u8fd9\u5bf9\u4e8e\u8ba1\u7b97\u590d\u5236\u5ef6\u8fdf\u5f88\u6709\u7528\u3002", "title": "\u65b0\u589e pg_xlog_location_diff()\uff0c\u7b80\u5316 WAL \u4f4d\u7f6e\u6bd4\u8f83", "commits": [], "section": "\u670d\u52a1\u5668 / \u76d1\u63a7", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.6", "source_hash": "807003c51709cd07b34fe80aa6e139ea2ab2f3c03a79c7ac27134ad3d554e083", "section_path": ["\u670d\u52a1\u5668", "\u76d1\u63a7"], "commit_groups": [], "identity_text": "Add pg_xlog_location_diff() to simplify WAL location comparisons (Euler Taveira de Oliveira) This is useful for computing replication lag.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/042", "db_id": "7a57adf0dd9d36625f020c43cc3a94c7", "patch_ids": [], "statement_hash": "6fe1f42c96dcb9bbfcc50290e29d7c479c02bf814a9ace90fdb76c357ec4d8e8", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-52ae2481bb263958", "migration": false}, {"id": "9.2.0-c27ccb547a8d8cfc", "cves": [], "html": "

\u652f\u6301\u5728 Windows \u4e0a\u914d\u7f6e\u4e8b\u4ef6\u65e5\u5fd7\u5e94\u7528\u540d\uff08MauMau\u3001Magnus Hagander\uff09\n

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", "text": "\u652f\u6301\u5728 Windows \u4e0a\u914d\u7f6e\u4e8b\u4ef6\u65e5\u5fd7\u5e94\u7528\u540d\uff08MauMau\u3001Magnus Hagander\uff09 \u8fd9\u5141\u8bb8\u4e0d\u540c\u5b9e\u4f8b\u901a\u8fc7\u8bbe\u7f6e event_source \u670d\u52a1\u5668\u53c2\u6570\u4ee5\u4e0d\u540c\u6807\u8bc6\u7b26\u4f7f\u7528\u4e8b\u4ef6\u65e5\u5fd7\uff0c\u5176\u5de5\u4f5c\u65b9\u5f0f\u7c7b\u4f3c\u4e8e syslog_ident\u3002", "title": "\u652f\u6301\u5728 Windows \u4e0a\u914d\u7f6e\u4e8b\u4ef6\u65e5\u5fd7\u5e94\u7528\u540d", "commits": [], "section": "\u670d\u52a1\u5668 / \u76d1\u63a7", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.6", "source_hash": "e843f2669289804c5c3b68e44781e805eda0447f6bb5796899a4fda5ce716862", "section_path": ["\u670d\u52a1\u5668", "\u76d1\u63a7"], "commit_groups": [], "identity_text": "Support configurable event log application names on Windows (MauMau, Magnus Hagander) This allows different instances to use the event log with different identifiers, by setting the event_source server parameter, which is similar to how syslog_ident works.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/043", "db_id": "d84840e7c46c7b1a22c8ee4f2227dda7", "patch_ids": [], "statement_hash": "01f89b22ff0d5f09bd7f535768ac1f1381dafbb9cda84bf7ceee507381f114ec", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-c27ccb547a8d8cfc", "migration": false}, {"id": "9.2.0-c8e772dc1744a7e7", "cves": [], "html": "

\u628a\u201cunexpected EOF\u201d\u6d88\u606f\u6539\u4e3a DEBUG1 \u7ea7\u522b\uff0c\u5b58\u5728\u672a\u7ed3\u675f\u4e8b\u52a1\u7684\u60c5\u51b5\u9664\u5916\uff08Magnus Hagander\uff09\n

\u6b64\u53d8\u66f4\u51cf\u5c11\u4e86\u4ee5\u4e0d\u4f18\u96c5\u65b9\u5f0f\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5\u7684\u5e94\u7528\u6240\u9020\u6210\u7684\u65e5\u5fd7\u566a\u97f3\u3002\n

", "text": "\u628a\u201cunexpected EOF\u201d\u6d88\u606f\u6539\u4e3a DEBUG1 \u7ea7\u522b\uff0c\u5b58\u5728\u672a\u7ed3\u675f\u4e8b\u52a1\u7684\u60c5\u51b5\u9664\u5916\uff08Magnus Hagander\uff09 \u6b64\u53d8\u66f4\u51cf\u5c11\u4e86\u4ee5\u4e0d\u4f18\u96c5\u65b9\u5f0f\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5\u7684\u5e94\u7528\u6240\u9020\u6210\u7684\u65e5\u5fd7\u566a\u97f3\u3002", "title": "\u628a\u201cunexpected EOF\u201d\u6d88\u606f\u6539\u4e3a DEBUG1 \u7ea7\u522b\uff0c\u5b58\u5728\u672a\u7ed3\u675f\u4e8b\u52a1\u7684\u60c5\u51b5\u9664\u5916", "commits": [], "section": "\u670d\u52a1\u5668 / \u76d1\u63a7", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.6", "source_hash": "7939b676a8aa85b9d93e850f554d3f9cca12f2b36ead9e6bb04f7245f92aaed2", "section_path": ["\u670d\u52a1\u5668", "\u76d1\u63a7"], "commit_groups": [], "identity_text": "Change unexpected EOF messages to DEBUG1 level, except when there is an open transaction (Magnus Hagander) This change reduces log chatter caused by applications that close database connections ungracefully.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/044", "db_id": "2ab1852dc91295ae40295a51c7e5e4ed", "patch_ids": [], "statement_hash": "32aaecd0addb456371d9bbbd8181ba9fcdeb363856f2efb5f63c7dca171c1597", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-c8e772dc1744a7e7", "migration": false}, {"id": "9.2.0-7bc344877340c1cb", "cves": [], "html": "

\u5728 pg_stat_database \u7cfb\u7edf\u89c6\u56fe\u4e2d\u8ddf\u8e2a\u4e34\u65f6\u6587\u4ef6\u5927\u5c0f\u548c\u6587\u4ef6\u6570\u91cf\uff08Tomas Vondra\uff09\n

", "text": "\u5728 pg_stat_database \u7cfb\u7edf\u89c6\u56fe\u4e2d\u8ddf\u8e2a\u4e34\u65f6\u6587\u4ef6\u5927\u5c0f\u548c\u6587\u4ef6\u6570\u91cf\uff08Tomas Vondra\uff09", "title": "\u5728 pg_stat_database \u7cfb\u7edf\u89c6\u56fe\u4e2d\u8ddf\u8e2a\u4e34\u65f6\u6587\u4ef6\u5927\u5c0f\u548c\u6587\u4ef6\u6570\u91cf", "commits": [], "section": "\u670d\u52a1\u5668 / \u7edf\u8ba1\u89c6\u56fe", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.7", "source_hash": "0bf9ce09d1254294cfa1860a58b833e10b26798e079983f9e4fb91bdb452419a", "section_path": ["\u670d\u52a1\u5668", "\u7edf\u8ba1\u89c6\u56fe"], "commit_groups": [], "identity_text": "Track temporary file sizes and file counts in the pg_stat_database system view (Tomas Vondra)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/045", "db_id": "c9673943b8a6cc6445c921291fd300b2", "patch_ids": [], "statement_hash": "18314ef2e813756163085c4549e719151612df52c25d179c049be8278fba18e2", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-7bc344877340c1cb", "migration": false}, {"id": "9.2.0-a999a93870aad94e", "cves": [], "html": "

\u4e3a pg_stat_database \u7cfb\u7edf\u89c6\u56fe\u65b0\u589e\u6b7b\u9501\u8ba1\u6570\u5668\uff08Magnus Hagander\uff09\n

", "text": "\u4e3a pg_stat_database \u7cfb\u7edf\u89c6\u56fe\u65b0\u589e\u6b7b\u9501\u8ba1\u6570\u5668\uff08Magnus Hagander\uff09", "title": "\u4e3a pg_stat_database \u7cfb\u7edf\u89c6\u56fe\u65b0\u589e\u6b7b\u9501\u8ba1\u6570\u5668", "commits": [], "section": "\u670d\u52a1\u5668 / \u7edf\u8ba1\u89c6\u56fe", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.7", "source_hash": "3b94e58f434de257c1459cdb5a5c8d22dd9f9fb0d0abcd3d1d38fcbd54e4aae0", "section_path": ["\u670d\u52a1\u5668", "\u7edf\u8ba1\u89c6\u56fe"], "commit_groups": [], "identity_text": "Add a deadlock counter to the pg_stat_database system view (Magnus Hagander)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/046", "db_id": "a66eaf24392812f44febdd403d04fb6c", "patch_ids": [], "statement_hash": "e8d460396ff1080189f91a2deac8c1c0c66ef16d4572e71f5416c62f8aece358", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-a999a93870aad94e", "migration": false}, {"id": "9.2.0-016783300b0677db", "cves": [], "html": "

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", "text": "\u65b0\u589e\u670d\u52a1\u5668\u53c2\u6570 track_io_timing\uff0c\u7528\u4e8e\u8ddf\u8e2a I/O \u8ba1\u65f6\uff08Ants Aasma\u3001Robert Haas\uff09", "title": "\u65b0\u589e\u670d\u52a1\u5668\u53c2\u6570 track_io_timing\uff0c\u7528\u4e8e\u8ddf\u8e2a I/O \u8ba1\u65f6", "commits": [], "section": "\u670d\u52a1\u5668 / \u7edf\u8ba1\u89c6\u56fe", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.7", "source_hash": "2adb476a8ef7f1a4f969bfd9b68c0850423f8b339fd5e0a15a774b70101cf4c7", "section_path": ["\u670d\u52a1\u5668", "\u7edf\u8ba1\u89c6\u56fe"], "commit_groups": [], "identity_text": "Add a server parameter track_io_timing to track I/O timings (Ants Aasma, Robert Haas)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/047", "db_id": "5b93c66a0a7a5058a4a500160ef0bf67", "patch_ids": [], "statement_hash": "f9a3b340d29f343d41d445108e0763b0ac9e0d4200273353b13fa427771ecda1", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-016783300b0677db", "migration": false}, {"id": "9.2.0-3a74b5538a2d6f04", "cves": [], "html": "

\u5728 pg_stat_bgwriter \u4e2d\u62a5\u544a\u68c0\u67e5\u70b9\u8ba1\u65f6\u4fe1\u606f\uff08Greg Smith\u3001Peter Geoghegan\uff09\n

", "text": "\u5728 pg_stat_bgwriter \u4e2d\u62a5\u544a\u68c0\u67e5\u70b9\u8ba1\u65f6\u4fe1\u606f\uff08Greg Smith\u3001Peter Geoghegan\uff09", "title": "\u5728 pg_stat_bgwriter \u4e2d\u62a5\u544a\u68c0\u67e5\u70b9\u8ba1\u65f6\u4fe1\u606f", "commits": [], "section": "\u670d\u52a1\u5668 / \u7edf\u8ba1\u89c6\u56fe", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.7", "source_hash": "27e093e207e9b3bfb151326ff91edba77f259930325431bbad2babdbe9442b53", "section_path": ["\u670d\u52a1\u5668", "\u7edf\u8ba1\u89c6\u56fe"], "commit_groups": [], "identity_text": "Report checkpoint timing information in pg_stat_bgwriter (Greg Smith, Peter Geoghegan)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/048", "db_id": "d2ea2a695faeb04ae4d121ce696a1634", "patch_ids": [], "statement_hash": "5853a0721b6749cbbb7fc7a7303a454bb80fe30898940827d2b3aeccdca0f1fd", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-3a74b5538a2d6f04", "migration": false}, {"id": "9.2.0-deba5c06be3d1c17", "cves": [], "html": "

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\u8fd9\u4f7f\u5f97\u4f7f\u7528\u901a\u7528\u8def\u5f84\u8bbe\u7f6e\u66f4\u65b9\u4fbf\uff0c\u8fd9\u7c7b\u8bbe\u7f6e\u53ef\u80fd\u5305\u542b\u5e76\u975e\u5728\u6240\u6709\u6570\u636e\u5e93\u4e2d\u90fd\u5b58\u5728\u7684\u6a21\u5f0f\u3002\n

", "text": "\u9759\u9ed8\u5ffd\u7565 search_path \u4e2d\u6307\u5b9a\u4f46\u4e0d\u5b58\u5728\u7684\u6a21\u5f0f\uff08Tom Lane\uff09 \u8fd9\u4f7f\u5f97\u4f7f\u7528\u901a\u7528\u8def\u5f84\u8bbe\u7f6e\u66f4\u65b9\u4fbf\uff0c\u8fd9\u7c7b\u8bbe\u7f6e\u53ef\u80fd\u5305\u542b\u5e76\u975e\u5728\u6240\u6709\u6570\u636e\u5e93\u4e2d\u90fd\u5b58\u5728\u7684\u6a21\u5f0f\u3002", "title": "\u9759\u9ed8\u5ffd\u7565 search_path \u4e2d\u6307\u5b9a\u4f46\u4e0d\u5b58\u5728\u7684\u6a21\u5f0f", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.8", "source_hash": "cf21251545b8d91b1b93a69f808da01ed679be90452d70ffcccba30fb4c51fee", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Silently ignore nonexistent schemas specified in search_path (Tom Lane) This makes it more convenient to use generic path settings, which might include some schemas that don't exist in all databases.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/049", "db_id": "7471ba20d030f4790ac6a63d3344df1d", "patch_ids": [], "statement_hash": "1cdca604b552dfb73d58a54b703df891c947ad7fefd51814d49c46a605b7c9a2", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-deba5c06be3d1c17", "migration": false}, {"id": "9.2.0-42d84ea92926a481", "cves": [], "html": "

\u5141\u8bb8\u8d85\u7ea7\u7528\u6237\u6309\u4f1a\u8bdd\u8bbe\u7f6e deadlock_timeout\uff0c\u800c\u4e0d\u4ec5\u662f\u6309\u96c6\u7c07\uff08Noah Misch\uff09\n

\u8fd9\u5141\u8bb8\u5bf9\u5f88\u53ef\u80fd\u5377\u5165\u6b7b\u9501\u7684\u4e8b\u52a1\u964d\u4f4e deadlock_timeout\uff0c\u4ece\u800c\u66f4\u5feb\u68c0\u6d4b\u5230\u5931\u8d25\u3002\u6216\u8005\uff0c\u63d0\u9ad8\u8be5\u503c\u53ef\u4ee5\u964d\u4f4e\u4f1a\u8bdd\u56e0\u6b7b\u9501\u800c\u88ab\u9009\u4e2d\u53d6\u6d88\u7684\u673a\u4f1a\u3002\n

", "text": "\u5141\u8bb8\u8d85\u7ea7\u7528\u6237\u6309\u4f1a\u8bdd\u8bbe\u7f6e deadlock_timeout\uff0c\u800c\u4e0d\u4ec5\u662f\u6309\u96c6\u7c07\uff08Noah Misch\uff09 \u8fd9\u5141\u8bb8\u5bf9\u5f88\u53ef\u80fd\u5377\u5165\u6b7b\u9501\u7684\u4e8b\u52a1\u964d\u4f4e deadlock_timeout\uff0c\u4ece\u800c\u66f4\u5feb\u68c0\u6d4b\u5230\u5931\u8d25\u3002\u6216\u8005\uff0c\u63d0\u9ad8\u8be5\u503c\u53ef\u4ee5\u964d\u4f4e\u4f1a\u8bdd\u56e0\u6b7b\u9501\u800c\u88ab\u9009\u4e2d\u53d6\u6d88\u7684\u673a\u4f1a\u3002", "title": "\u5141\u8bb8\u8d85\u7ea7\u7528\u6237\u6309\u4f1a\u8bdd\u8bbe\u7f6e deadlock_timeout\uff0c\u800c\u4e0d\u4ec5\u662f\u6309\u96c6\u7c07", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.8", "source_hash": "9b9131e3c9708d8835de0a13e0b41829519612aac6e5646e9beeb6c98492c2af", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Allow superusers to set deadlock_timeout per-session, not just per-cluster (Noah Misch) This allows deadlock_timeout to be reduced for transactions that are likely to be involved in a deadlock, thus detecting the failure more quickly. Alternatively, increasing the value can be used to reduce the chances of a session being chosen for cancellation due to a deadlock.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/050", "db_id": "bdd94437fc078c39b8f463fd8e84c9e5", "patch_ids": [], "statement_hash": "6ab4a8a005d83baf49d2cbdd81b097ea0e5b5216d79e1c7c7c82e31e180236cf", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-42d84ea92926a481", "migration": false}, {"id": "9.2.0-fd413241daa88e0b", "cves": [], "html": "

\u65b0\u589e\u670d\u52a1\u5668\u53c2\u6570 temp_file_limit\uff0c\u7528\u4e8e\u9650\u5236\u6bcf\u4f1a\u8bdd\u7684\u4e34\u65f6\u6587\u4ef6\u7a7a\u95f4\u4f7f\u7528\uff08Mark Kirkwood\uff09\n

", "text": "\u65b0\u589e\u670d\u52a1\u5668\u53c2\u6570 temp_file_limit\uff0c\u7528\u4e8e\u9650\u5236\u6bcf\u4f1a\u8bdd\u7684\u4e34\u65f6\u6587\u4ef6\u7a7a\u95f4\u4f7f\u7528\uff08Mark Kirkwood\uff09", "title": "\u65b0\u589e\u670d\u52a1\u5668\u53c2\u6570 temp_file_limit\uff0c\u7528\u4e8e\u9650\u5236\u6bcf\u4f1a\u8bdd\u7684\u4e34\u65f6\u6587\u4ef6\u7a7a\u95f4\u4f7f\u7528", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.8", "source_hash": "517a9d2f03bdba3797b3e19730d88a92d1f1087d375c7ab30c76d4fa70aedcab", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Add a server parameter temp_file_limit to constrain temporary file space usage per session (Mark Kirkwood)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/051", "db_id": "da336137f02024afa23ad5bf013d802f", "patch_ids": [], "statement_hash": "2f25e9fc6c108fc0c25fae2fa75c07bf1734365bae6d67877c62637a348b9bb8", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-fd413241daa88e0b", "migration": false}, {"id": "9.2.0-91441c9a6a4d37e5", "cves": [], "html": "

\u5141\u8bb8\u8d85\u7ea7\u7528\u6237\u5728\u52a0\u8f7d\u76f8\u5173\u6269\u5c55\u4e4b\u524d SET \u8be5\u6269\u5c55\u7684\u4ec5\u8d85\u7ea7\u7528\u6237\u81ea\u5b9a\u4e49\u53d8\u91cf\uff08Tom Lane\uff09\n

\u7cfb\u7edf\u73b0\u5728\u4f1a\u8bb0\u4f4f SET \u662f\u5426\u7531\u8d85\u7ea7\u7528\u6237\u6267\u884c\uff0c\u4ee5\u4fbf\u5728\u52a0\u8f7d\u6269\u5c55\u65f6\u8fdb\u884c\u6b63\u786e\u7684\u6743\u9650\u68c0\u67e5\u3002\n

", "text": "\u5141\u8bb8\u8d85\u7ea7\u7528\u6237\u5728\u52a0\u8f7d\u76f8\u5173\u6269\u5c55\u4e4b\u524d SET \u8be5\u6269\u5c55\u7684\u4ec5\u8d85\u7ea7\u7528\u6237\u81ea\u5b9a\u4e49\u53d8\u91cf\uff08Tom Lane\uff09 \u7cfb\u7edf\u73b0\u5728\u4f1a\u8bb0\u4f4f SET \u662f\u5426\u7531\u8d85\u7ea7\u7528\u6237\u6267\u884c\uff0c\u4ee5\u4fbf\u5728\u52a0\u8f7d\u6269\u5c55\u65f6\u8fdb\u884c\u6b63\u786e\u7684\u6743\u9650\u68c0\u67e5\u3002", "title": "\u5141\u8bb8\u8d85\u7ea7\u7528\u6237\u5728\u52a0\u8f7d\u76f8\u5173\u6269\u5c55\u4e4b\u524d SET \u8be5\u6269\u5c55\u7684\u4ec5\u8d85\u7ea7\u7528\u6237\u81ea\u5b9a\u4e49\u53d8\u91cf", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.8", "source_hash": "75308fcd43cda63d90fab197d537d8fedff854333b3aee97a9354c8e86ba39a6", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Allow a superuser to SET an extension's superuser-only custom variable before loading the associated extension (Tom Lane) The system now remembers whether a SET was performed by a superuser, so that proper privilege checking can be done when the extension is loaded.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/052", "db_id": "512d273539bb848ec517debce3b2526f", "patch_ids": [], "statement_hash": "355e26890dd49cf98c8089a7e5238fd1b158a7cf83a7dd8855c9cb09062e3e07", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-91441c9a6a4d37e5", "migration": false}, {"id": "9.2.0-016c1675ecb2943c", "cves": [], "html": "

\u4e3a postmaster \u65b0\u589e -C \u9009\u9879\uff0c\u7528\u4e8e\u67e5\u8be2\u914d\u7f6e\u53c2\u6570\uff08Bruce Momjian\uff09\n

\u8fd9\u4f7f pg_ctl \u80fd\u66f4\u597d\u5730\u5904\u7406 PGDATA \u6216 -D \u6307\u5411\u4ec5\u914d\u7f6e\u76ee\u5f55\u7684\u60c5\u51b5\u3002\n

", "text": "\u4e3a postmaster \u65b0\u589e -C \u9009\u9879\uff0c\u7528\u4e8e\u67e5\u8be2\u914d\u7f6e\u53c2\u6570\uff08Bruce Momjian\uff09 \u8fd9\u4f7f pg_ctl \u80fd\u66f4\u597d\u5730\u5904\u7406 PGDATA \u6216 -D \u6307\u5411\u4ec5\u914d\u7f6e\u76ee\u5f55\u7684\u60c5\u51b5\u3002", "title": "\u4e3a postmaster \u65b0\u589e -C \u9009\u9879\uff0c\u7528\u4e8e\u67e5\u8be2\u914d\u7f6e\u53c2\u6570", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.8", "source_hash": "6494b9c2f3022fd5e830c79300ab35933bbc5f086e6ca7c354f51200bb5ebc90", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Add postmaster -C option to query configuration parameters (Bruce Momjian) This allows pg_ctl to better handle cases where PGDATA or -D points to a configuration-only directory.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/053", "db_id": "f2df67d3ae28fe0310653ee070425cec", "patch_ids": [], "statement_hash": "e94cd7cb68b84478d9126575202ca02440e5db400f37ea282e57254cd7c33b9b", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-016c1675ecb2943c", "migration": false}, {"id": "9.2.0-4ae7876f90ea244f", "cves": [], "html": "

\u5728 CREATE DATABASE \u4e2d\u7528\u9690\u542b\u503c\u66ff\u6362\u7a7a\u7684\u533a\u57df\u540d\uff08Tom Lane\uff09\n

\u8fd9\u9632\u6b62\u4e86 pg_database.datcollate \u6216 datctype \u5728\u670d\u52a1\u5668\u91cd\u542f\u540e\u88ab\u4e0d\u540c\u89e3\u91ca\u7684\u60c5\u51b5\u3002\n

", "text": "\u5728 CREATE DATABASE \u4e2d\u7528\u9690\u542b\u503c\u66ff\u6362\u7a7a\u7684\u533a\u57df\u540d\uff08Tom Lane\uff09 \u8fd9\u9632\u6b62\u4e86 pg_database.datcollate \u6216 datctype \u5728\u670d\u52a1\u5668\u91cd\u542f\u540e\u88ab\u4e0d\u540c\u89e3\u91ca\u7684\u60c5\u51b5\u3002", "title": "\u5728 CREATE DATABASE \u4e2d\u7528\u9690\u542b\u503c\u66ff\u6362\u7a7a\u7684\u533a\u57df\u540d", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.8", "source_hash": "33ccf28497858e0872899635e11e6ad352f24bb0e580e2811b83e8e0d9fb0afc", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Replace an empty locale name with the implied value in CREATE DATABASE (Tom Lane) This prevents cases where pg_database.datcollate or datctype could be interpreted differently after a server restart.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/054", "db_id": "df05c5b6d047ca584c64a8acbe6931aa", "patch_ids": [], "statement_hash": "64369df3bce1b4a5c2d62bac6a673dcc8176015a4014156b5cc2fe76405c8849", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-4ae7876f90ea244f", "migration": false}, {"id": "9.2.0-a8d452d8d130bba9", "cves": [], "html": "

\u5141\u8bb8\u62a5\u544a postgresql.conf \u4e2d\u7684\u591a\u4e2a\u9519\u8bef\uff0c\u800c\u4e0d\u662f\u53ea\u6709\u7b2c\u4e00\u4e2a\uff08Alexey Klyukin\u3001Tom Lane\uff09\n

", "text": "\u5141\u8bb8\u62a5\u544a postgresql.conf \u4e2d\u7684\u591a\u4e2a\u9519\u8bef\uff0c\u800c\u4e0d\u662f\u53ea\u6709\u7b2c\u4e00\u4e2a\uff08Alexey Klyukin\u3001Tom Lane\uff09", "title": "\u5141\u8bb8\u62a5\u544a postgresql.conf \u4e2d\u7684\u591a\u4e2a\u9519\u8bef\uff0c\u800c\u4e0d\u662f\u53ea\u6709\u7b2c\u4e00\u4e2a", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e / postgresql.conf", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.8.3", "source_hash": "6354db4d488ba02cc221d55d53198bc0a0ddc0f177ea8d7e5b6d8bd709d4f6e8", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e", "postgresql.conf"], "commit_groups": [], "identity_text": "Allow multiple errors in postgresql.conf to be reported, rather than just the first one (Alexey Klyukin, Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/055", "db_id": "2733d12f6532b5fd7e5e1404474abaa4", "patch_ids": [], "statement_hash": "a23b7426cef9343b69f1cab7af7ad01fe5aef3fbb2903196e54defd6acaaea21", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-a8d452d8d130bba9", "migration": false}, {"id": "9.2.0-8cda8358a220457f", "cves": [], "html": "

\u5141\u8bb8\u6240\u6709\u4f1a\u8bdd\u5904\u7406 postgresql.conf \u7684\u91cd\u65b0\u52a0\u8f7d\uff0c\u5373\u4f7f\u67d0\u4e9b\u8bbe\u7f6e\u5bf9\u7279\u5b9a\u4f1a\u8bdd\u65e0\u6548\uff08Alexey Klyukin\uff09\n

\u6b64\u524d\uff0c\u8fd9\u7c7b\u4f1a\u8bdd\u5185\u65e0\u6548\u7684\u503c\u4f1a\u5bfc\u81f4\u8be5\u4f1a\u8bdd\u5ffd\u7565\u6240\u6709\u8bbe\u7f6e\u53d8\u66f4\u3002\n

", "text": "\u5141\u8bb8\u6240\u6709\u4f1a\u8bdd\u5904\u7406 postgresql.conf \u7684\u91cd\u65b0\u52a0\u8f7d\uff0c\u5373\u4f7f\u67d0\u4e9b\u8bbe\u7f6e\u5bf9\u7279\u5b9a\u4f1a\u8bdd\u65e0\u6548\uff08Alexey Klyukin\uff09 \u6b64\u524d\uff0c\u8fd9\u7c7b\u4f1a\u8bdd\u5185\u65e0\u6548\u7684\u503c\u4f1a\u5bfc\u81f4\u8be5\u4f1a\u8bdd\u5ffd\u7565\u6240\u6709\u8bbe\u7f6e\u53d8\u66f4\u3002", "title": "\u5141\u8bb8\u6240\u6709\u4f1a\u8bdd\u5904\u7406 postgresql.conf \u7684\u91cd\u65b0\u52a0\u8f7d\uff0c\u5373\u4f7f\u67d0\u4e9b\u8bbe\u7f6e\u5bf9\u7279\u5b9a\u4f1a\u8bdd\u65e0\u6548", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e / postgresql.conf", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.3.8.3", "source_hash": "259698959498ad081253205d66c377ff0e25ba8579002321ee5c991674ddaa51", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e", "postgresql.conf"], "commit_groups": [], "identity_text": "Allow a reload of postgresql.conf to be processed by all sessions, even if there are some settings that are invalid for particular sessions (Alexey Klyukin) Previously, such not-valid-within-session values would cause all setting changes to be ignored by that session.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/056", "db_id": "4295a1c3466e05e86324d5dffd256f81", "patch_ids": [], "statement_hash": "fd56085cc2e27adacc1d0fed3439881ed0da166e3e74f3123992c51ea3e269fb", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-8cda8358a220457f", "migration": false}, {"id": "9.2.0-e510e71612919489", "cves": [], "html": "

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", "text": "\u5728\u8fd0\u884c\u65f6\u4e3a\u884c\u8868\u8fbe\u5f0f\u4fdd\u7559\u5217\u540d\uff08Andrew Dunstan\u3001Tom Lane\uff09 \u6b64\u53d8\u66f4\u5141\u8bb8\u5728\u884c\u503c\u8f6c\u6362\u4e3a hstore \u6216 json \u7c7b\u578b\u65f6\u83b7\u5f97\u66f4\u597d\u7684\u7ed3\u679c\uff1a\u7ed3\u679c\u503c\u7684\u5b57\u6bb5\u73b0\u5728\u4f1a\u5177\u6709\u9884\u671f\u7684\u540d\u79f0\u3002", "title": "\u5728\u8fd0\u884c\u65f6\u4e3a\u884c\u8868\u8fbe\u5f0f\u4fdd\u7559\u5217\u540d", "commits": [], "section": "\u67e5\u8be2", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.5", "source_hash": "f495bb7f74871bd7a643e5e5355a136e49c6627d3473c8b0ebf4736bfc6988fc", "section_path": ["\u67e5\u8be2"], "commit_groups": [], "identity_text": "Retain column names at run time for row expressions (Andrew Dunstan, Tom Lane) This change allows better results when a row value is converted to hstore or json type: the fields of the resulting value will now have the expected names.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/066", "db_id": "aa9924c84ab938b4607b1c52c57d10fc", "patch_ids": [], "statement_hash": "602f2ff5813b3ff412ac597d16b4149872b51b050ba0f1a66722b12b7c1fe4f6", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-9219f553f4d1bffd", "migration": false}, {"id": "9.2.0-af11f76347727645", "cves": [], "html": "

\u6539\u8fdb\u5b50 SELECT \u7ed3\u679c\u6240\u7528\u7684\u5217\u6807\u7b7e\uff08Marti Raudsepp\uff09\n

\u6b64\u524d\u4f7f\u7528\u7684\u662f\u901a\u7528\u6807\u7b7e ?column?\u3002\n

", "text": "\u6539\u8fdb\u5b50 SELECT \u7ed3\u679c\u6240\u7528\u7684\u5217\u6807\u7b7e\uff08Marti Raudsepp\uff09 \u6b64\u524d\u4f7f\u7528\u7684\u662f\u901a\u7528\u6807\u7b7e ?column?\u3002", "title": "\u6539\u8fdb\u5b50 SELECT \u7ed3\u679c\u6240\u7528\u7684\u5217\u6807\u7b7e", "commits": [], "section": "\u67e5\u8be2", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.5", "source_hash": "136ce39e9713d4ce9daf148b58082f9e0c9d12a0f6fab4726faa524fcd49c36d", "section_path": ["\u67e5\u8be2"], "commit_groups": [], "identity_text": "Improve column labels used for sub-SELECT results (Marti Raudsepp) Previously, the generic label ?column? was used.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/067", "db_id": "93f4f89c6aff5d04c825207c879be847", "patch_ids": [], "statement_hash": "49ec44391ae6bbf8c8421f5512b96ecb4959cf3ab05cc165c8b39993dc805f99", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-af11f76347727645", "migration": false}, {"id": "9.2.0-da5bb0df6d3a7890", "cves": [], "html": "

\u6539\u8fdb\u786e\u5b9a\u672a\u77e5\u503c\u7c7b\u578b\u7684\u542f\u53d1\u5f0f\u89c4\u5219\uff08Tom Lane\uff09\n

\"\u672a\u77e5\u5e38\u91cf\u53ef\u4ee5\u4e0e\u4f7f\u7528\u5b83\u7684\u64cd\u4f5c\u7b26\u53e6\u4e00\u4fa7\u7684\u503c\u5177\u6709\u76f8\u540c\u7c7b\u578b\"\u8fd9\u4e00\u957f\u671f\u89c4\u5219\uff0c\u73b0\u5728\u5728\u8003\u8651\u591a\u6001\u64cd\u4f5c\u7b26\u65f6\u4e5f\u4f1a\u5e94\u7528\uff0c\u800c\u4e0d\u4ec5\u7528\u4e8e\u7b80\u5355\u7684\u64cd\u4f5c\u7b26\u5339\u914d\u3002\n

", "text": "\u6539\u8fdb\u786e\u5b9a\u672a\u77e5\u503c\u7c7b\u578b\u7684\u542f\u53d1\u5f0f\u89c4\u5219\uff08Tom Lane\uff09 \"\u672a\u77e5\u5e38\u91cf\u53ef\u4ee5\u4e0e\u4f7f\u7528\u5b83\u7684\u64cd\u4f5c\u7b26\u53e6\u4e00\u4fa7\u7684\u503c\u5177\u6709\u76f8\u540c\u7c7b\u578b\"\u8fd9\u4e00\u957f\u671f\u89c4\u5219\uff0c\u73b0\u5728\u5728\u8003\u8651\u591a\u6001\u64cd\u4f5c\u7b26\u65f6\u4e5f\u4f1a\u5e94\u7528\uff0c\u800c\u4e0d\u4ec5\u7528\u4e8e\u7b80\u5355\u7684\u64cd\u4f5c\u7b26\u5339\u914d\u3002", "title": "\u6539\u8fdb\u786e\u5b9a\u672a\u77e5\u503c\u7c7b\u578b\u7684\u542f\u53d1\u5f0f\u89c4\u5219", "commits": [], "section": "\u67e5\u8be2", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.5", "source_hash": "a85686815ebe9b50e3d5a4132c719fd4b4450ae2f6c799c80e233ea4936b9c07", "section_path": ["\u67e5\u8be2"], "commit_groups": [], "identity_text": "Improve heuristics for determining the types of unknown values (Tom Lane) The longstanding rule that an unknown constant might have the same type as the value on the other side of the operator using it is now applied when considering polymorphic operators, not only for simple operator matches.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/068", "db_id": "e8da33c3d34fa91fbf89a237d59cd666", "patch_ids": [], "statement_hash": "ad4ce5597ef7c136813b58f9db93ca152701e4748b4cf686f62b8a947061df43", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-da5bb0df6d3a7890", "migration": false}, {"id": "9.2.0-2f56d16bcd6be0f7", "cves": [], "html": "

\u5bf9\u521b\u5efa\u5230\u57df\u7c7b\u578b\u6216\u4ece\u57df\u7c7b\u578b\u51fa\u53d1\u7684\u8f6c\u6362\u53d1\u51fa\u8b66\u544a\uff08Robert Haas\uff09\n

\u8fd9\u7c7b\u8f6c\u6362\u6ca1\u6709\u4efb\u4f55\u6548\u679c\u3002\n

", "text": "\u5bf9\u521b\u5efa\u5230\u57df\u7c7b\u578b\u6216\u4ece\u57df\u7c7b\u578b\u51fa\u53d1\u7684\u8f6c\u6362\u53d1\u51fa\u8b66\u544a\uff08Robert Haas\uff09 \u8fd9\u7c7b\u8f6c\u6362\u6ca1\u6709\u4efb\u4f55\u6548\u679c\u3002", "title": "\u5bf9\u521b\u5efa\u5230\u57df\u7c7b\u578b\u6216\u4ece\u57df\u7c7b\u578b\u51fa\u53d1\u7684\u8f6c\u6362\u53d1\u51fa\u8b66\u544a", "commits": [], "section": "\u67e5\u8be2", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.5", "source_hash": "a1fa424de4c37ad2bf7d3e2ec27029f13dc0c31a7df26bc815269ece77958940", "section_path": ["\u67e5\u8be2"], "commit_groups": [], "identity_text": "Warn about creating casts to or from domain types (Robert Haas) Such casts have no effect.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/069", "db_id": "eb07471df5cd5fa582cdd1a4a77a97e3", "patch_ids": [], "statement_hash": "9a496418c77dd0c7b3fea817200d11e79652fbeb20b58bfe18322e42d46019c6", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-2f56d16bcd6be0f7", "migration": false}, {"id": "9.2.0-19fc3ef5df93c509", "cves": [], "html": "

\u5f53\u884c\u8fdd\u53cd CHECK \u6216 NOT NULL \u7ea6\u675f\u65f6\uff0c\u628a\u884c\u7684\u5185\u5bb9\u663e\u793a\u4e3a\u9519\u8bef\u7ec6\u8282\uff08Jan Kundr\u00e1t\uff09\n

\u5f53\u63d2\u5165\u6216\u66f4\u65b0\u6b63\u5728\u5904\u7406\u8bb8\u591a\u884c\u65f6\uff0c\u8fd9\u5e94\u80fd\u66f4\u5bb9\u6613\u8bc6\u522b\u54ea\u4e00\u884c\u6709\u95ee\u9898\u3002\n

", "text": "\u5f53\u884c\u8fdd\u53cd CHECK \u6216 NOT NULL \u7ea6\u675f\u65f6\uff0c\u628a\u884c\u7684\u5185\u5bb9\u663e\u793a\u4e3a\u9519\u8bef\u7ec6\u8282\uff08Jan Kundr\u00e1t\uff09 \u5f53\u63d2\u5165\u6216\u66f4\u65b0\u6b63\u5728\u5904\u7406\u8bb8\u591a\u884c\u65f6\uff0c\u8fd9\u5e94\u80fd\u66f4\u5bb9\u6613\u8bc6\u522b\u54ea\u4e00\u884c\u6709\u95ee\u9898\u3002", "title": "\u5f53\u884c\u8fdd\u53cd CHECK \u6216 NOT NULL \u7ea6\u675f\u65f6\uff0c\u628a\u884c\u7684\u5185\u5bb9\u663e\u793a\u4e3a\u9519\u8bef\u7ec6\u8282", "commits": [], "section": "\u67e5\u8be2", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.5", "source_hash": "71440e38d684cf89b1b7f1b8cfff27340439925bd95976f8a461e658678a673d", "section_path": ["\u67e5\u8be2"], "commit_groups": [], "identity_text": "When a row fails a CHECK or NOT NULL constraint, show the row's contents as error detail (Jan Kundr\u00e1t) This should make it easier to identify which row is problematic when an insert or update is processing many rows.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/070", "db_id": "0c7127330465af9e6d85f7dfd2dfab38", "patch_ids": [], "statement_hash": "118109cf4d7be049548383b549d1d34d226d774f4c1ba3ee920c5839491852dd", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-19fc3ef5df93c509", "migration": false}, {"id": "9.2.0-650e93ab93cff914", "cves": [], "html": "

\u63d0\u4f9b\u5e76\u53d1 DDL \u671f\u95f4\u66f4\u53ef\u9760\u7684\u64cd\u4f5c\uff08Robert Haas\u3001Noah Misch\uff09\n

\u6b64\u53d8\u66f4\u589e\u52a0\u4e86\u9501\u5b9a\uff0c\u5e94\u80fd\u6d88\u9664\u8bb8\u591a\u573a\u666f\u4e0b\u7684\u201ccache lookup failed\u201d\u9519\u8bef\u3002\u6b64\u5916\uff0c\u4e5f\u4e0d\u518d\u53ef\u80fd\u5411\u6b63\u88ab\u5e76\u53d1\u5220\u9664\u7684\u6a21\u5f0f\u6dfb\u52a0\u5173\u7cfb\u2014\u2014\u8fd9\u79cd\u573a\u666f\u4ee5\u524d\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u76ee\u5f55\u5185\u5bb9\u4e0d\u4e00\u81f4\u3002\n

", "text": "\u63d0\u4f9b\u5e76\u53d1 DDL \u671f\u95f4\u66f4\u53ef\u9760\u7684\u64cd\u4f5c\uff08Robert Haas\u3001Noah Misch\uff09 \u6b64\u53d8\u66f4\u589e\u52a0\u4e86\u9501\u5b9a\uff0c\u5e94\u80fd\u6d88\u9664\u8bb8\u591a\u573a\u666f\u4e0b\u7684\u201ccache lookup failed\u201d\u9519\u8bef\u3002\u6b64\u5916\uff0c\u4e5f\u4e0d\u518d\u53ef\u80fd\u5411\u6b63\u88ab\u5e76\u53d1\u5220\u9664\u7684\u6a21\u5f0f\u6dfb\u52a0\u5173\u7cfb\u2014\u2014\u8fd9\u79cd\u573a\u666f\u4ee5\u524d\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u76ee\u5f55\u5185\u5bb9\u4e0d\u4e00\u81f4\u3002", "title": "\u63d0\u4f9b\u5e76\u53d1 DDL \u671f\u95f4\u66f4\u53ef\u9760\u7684\u64cd\u4f5c", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6", "source_hash": "65a755fd54c386179f90ae0b86736e3a059985a4e9bfe9516c7f99201c7eb9fd", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Provide more reliable operation during concurrent DDL (Robert Haas, Noah Misch) This change adds locking that should eliminate cache lookup failed errors in many scenarios. Also, it is no longer possible to add relations to a schema that is being concurrently dropped, a scenario that formerly led to inconsistent system catalog contents.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/071", "db_id": "23e6f379895498b46cd89d458ce186f3", "patch_ids": [], "statement_hash": "af09d8658abdacd2f06fe02edb12329bf8164289e5b88d24e5d349d2af390af9", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-650e93ab93cff914", "migration": false}, {"id": "9.2.0-dbbece126ac3ef0d", "cves": [], "html": "

\u4e3a DROP INDEX \u65b0\u589e CONCURRENTLY \u9009\u9879\uff08Simon Riggs\uff09\n

\u8fd9\u5141\u8bb8\u5728\u4e0d\u963b\u585e\u5176\u4ed6\u4f1a\u8bdd\u7684\u60c5\u51b5\u4e0b\u79fb\u9664\u7d22\u5f15\u3002\n

", "text": "\u4e3a DROP INDEX \u65b0\u589e CONCURRENTLY \u9009\u9879\uff08Simon Riggs\uff09 \u8fd9\u5141\u8bb8\u5728\u4e0d\u963b\u585e\u5176\u4ed6\u4f1a\u8bdd\u7684\u60c5\u51b5\u4e0b\u79fb\u9664\u7d22\u5f15\u3002", "title": "\u4e3a DROP INDEX \u65b0\u589e CONCURRENTLY \u9009\u9879", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6", "source_hash": "1fe5c821f26676ed94bec362df3ba6f22e5326034a1a96273c2a36d086cffcb3", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Add CONCURRENTLY option to DROP INDEX (Simon Riggs) This allows index removal without blocking other sessions.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/072", "db_id": "a4616a3a780e5640372e57fdfdf8e246", "patch_ids": [], "statement_hash": "4e923cf95e7c9cc144680d30b953dec34b0109cf99154e4d49c7cd60d24249bd", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-dbbece126ac3ef0d", "migration": false}, {"id": "9.2.0-d7bcd65da4f43c76", "cves": [], "html": "

\u5141\u8bb8\u5916\u90e8\u6570\u636e\u5305\u88c5\u5668\u5177\u6709\u9010\u5217\u9009\u9879\uff08Shigeru Hanada\uff09\n

", "text": "\u5141\u8bb8\u5916\u90e8\u6570\u636e\u5305\u88c5\u5668\u5177\u6709\u9010\u5217\u9009\u9879\uff08Shigeru Hanada\uff09", "title": "\u5141\u8bb8\u5916\u90e8\u6570\u636e\u5305\u88c5\u5668\u5177\u6709\u9010\u5217\u9009\u9879", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6", "source_hash": "bceee72239a93cf482a3547cdb87f0d1cf272dff7403b51edb490d0a1060d9c8", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Allow foreign data wrappers to have per-column options (Shigeru Hanada)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/073", "db_id": "b790b16beb94c0a21bf26901a5baa65a", "patch_ids": [], "statement_hash": "3155d193e543d3daa9eae64d57adb6d464794739e5819fedb75ff98818fbf2e9", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-d7bcd65da4f43c76", "migration": false}, {"id": "9.2.0-4baf21bb22ec2855", "cves": [], "html": "

\u6539\u8fdb\u89c6\u56fe\u5b9a\u4e49\u7684\u6f02\u4eae\u6253\u5370\uff08Andrew Dunstan\uff09\n

", "text": "\u6539\u8fdb\u89c6\u56fe\u5b9a\u4e49\u7684\u6f02\u4eae\u6253\u5370\uff08Andrew Dunstan\uff09", "title": "\u6539\u8fdb\u89c6\u56fe\u5b9a\u4e49\u7684\u6f02\u4eae\u6253\u5370", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6", "source_hash": "59a191c428435bf6e013f714cdf2035c7e80dcb8c87830ffa1d284154c44cded", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Improve pretty-printing of view definitions (Andrew Dunstan)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/074", "db_id": "81b114f6826d287ec01546a56e780701", "patch_ids": [], "statement_hash": "613424a1f671228fdbeebc80bcc51533946745ffe6fe05a0c20689411d2a4867", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-4baf21bb22ec2855", "migration": false}, {"id": "9.2.0-ebf6de6534e034f5", "cves": [], "html": "

\u5141\u8bb8 CHECK \u7ea6\u675f\u58f0\u660e\u4e3a NOT VALID\uff08\u00c1lvaro Herrera\uff09\n

\u6dfb\u52a0 NOT VALID \u7ea6\u675f\u4e0d\u4f1a\u5bfc\u81f4\u626b\u63cf\u8868\u4ee5\u9a8c\u8bc1\u73b0\u6709\u884c\u6ee1\u8db3\u7ea6\u675f\u3002\u4e4b\u540e\uff0c\u65b0\u6dfb\u52a0\u6216\u66f4\u65b0\u7684\u884c\u4f1a\u88ab\u68c0\u67e5\u3002\u89c4\u5212\u5668\u5728\u8003\u8651 constraint_exclusion \u65f6\u4f1a\u5ffd\u7565\u8fd9\u7c7b\u7ea6\u675f\uff0c\u56e0\u4e3a\u4e0d\u80fd\u786e\u5b9a\u6240\u6709\u884c\u90fd\u6ee1\u8db3\u7ea6\u675f\u3002\n

\u65b0\u7684 ALTER TABLE VALIDATE \u547d\u4ee4\u5141\u8bb8\u5bf9\u73b0\u6709\u884c\u68c0\u67e5 NOT VALID \u7ea6\u675f\uff0c\u4e4b\u540e\u5b83\u4eec\u88ab\u8f6c\u6362\u4e3a\u666e\u901a\u7ea6\u675f\u3002\n

", "text": "\u5141\u8bb8 CHECK \u7ea6\u675f\u58f0\u660e\u4e3a NOT VALID\uff08\u00c1lvaro Herrera\uff09 \u6dfb\u52a0 NOT VALID \u7ea6\u675f\u4e0d\u4f1a\u5bfc\u81f4\u626b\u63cf\u8868\u4ee5\u9a8c\u8bc1\u73b0\u6709\u884c\u6ee1\u8db3\u7ea6\u675f\u3002\u4e4b\u540e\uff0c\u65b0\u6dfb\u52a0\u6216\u66f4\u65b0\u7684\u884c\u4f1a\u88ab\u68c0\u67e5\u3002\u89c4\u5212\u5668\u5728\u8003\u8651 constraint_exclusion \u65f6\u4f1a\u5ffd\u7565\u8fd9\u7c7b\u7ea6\u675f\uff0c\u56e0\u4e3a\u4e0d\u80fd\u786e\u5b9a\u6240\u6709\u884c\u90fd\u6ee1\u8db3\u7ea6\u675f\u3002 \u65b0\u7684 ALTER TABLE VALIDATE \u547d\u4ee4\u5141\u8bb8\u5bf9\u73b0\u6709\u884c\u68c0\u67e5 NOT VALID \u7ea6\u675f\uff0c\u4e4b\u540e\u5b83\u4eec\u88ab\u8f6c\u6362\u4e3a\u666e\u901a\u7ea6\u675f\u3002", "title": "\u5141\u8bb8 CHECK \u7ea6\u675f\u58f0\u660e\u4e3a NOT VALID", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / \u7ea6\u675f", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.3", "source_hash": "2b9d3bbb4cd207d02d8e7743e00dc5b25b56155f758065f36c49fd4b7cff388d", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "\u7ea6\u675f"], "commit_groups": [], "identity_text": "Allow CHECK constraints to be declared NOT VALID (\u00c1lvaro Herrera) Adding a NOT VALID constraint does not cause the table to be scanned to verify that existing rows meet the constraint. Subsequently, newly added or updated rows are checked. Such constraints are ignored by the planner when considering constraint_exclusion, since it is not certain that all rows meet the constraint. The new ALTER TABLE VALIDATE command allows NOT VALID constraints to be checked for existing rows, after which they are converted into ordinary constraints.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/075", "db_id": "a78a758fa54c3b5a15040982db3a4d4f", "patch_ids": [], "statement_hash": "fb57750a8f7d1a3a311b66ab3e3baaeb54b82db1907fa0f2688e36d08d712dc7", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-ebf6de6534e034f5", "migration": false}, {"id": "9.2.0-0be1f08f9bacf3f8", "cves": [], "html": "

\u5141\u8bb8 CHECK \u7ea6\u675f\u58f0\u660e\u4e3a NO INHERIT\uff08Nikhil Sontakke\u3001Alex Hunsaker\u3001\u00c1lvaro Herrera\uff09\n

\u8fd9\u4f7f\u5b83\u4eec\u53ea\u5728\u7236\u8868\u4e0a\u5f3a\u5236\u6267\u884c\uff0c\u800c\u4e0d\u5728\u5b50\u8868\u4e0a\u3002\n

", "text": "\u5141\u8bb8 CHECK \u7ea6\u675f\u58f0\u660e\u4e3a NO INHERIT\uff08Nikhil Sontakke\u3001Alex Hunsaker\u3001\u00c1lvaro Herrera\uff09 \u8fd9\u4f7f\u5b83\u4eec\u53ea\u5728\u7236\u8868\u4e0a\u5f3a\u5236\u6267\u884c\uff0c\u800c\u4e0d\u5728\u5b50\u8868\u4e0a\u3002", "title": "\u5141\u8bb8 CHECK \u7ea6\u675f\u58f0\u660e\u4e3a NO INHERIT", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / \u7ea6\u675f", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.3", "source_hash": "33fbbb1181c0cc9aba7ba6d524e453fbc176b978da6058e3f2c03efe5b60ae0b", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "\u7ea6\u675f"], "commit_groups": [], "identity_text": "Allow CHECK constraints to be declared NO INHERIT (Nikhil Sontakke, Alex Hunsaker, \u00c1lvaro Herrera) This makes them enforceable only on the parent table, not on child tables.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/076", "db_id": "adb6790e0f6ea272464bcb9494d9bab1", "patch_ids": [], "statement_hash": "6d1af361d809f9761ad4220bec0f1851847266c48bd38ff568ebb97f26262dc2", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-0be1f08f9bacf3f8", "migration": false}, {"id": "9.2.0-e03daecdef5507f8", "cves": [], "html": "

\u65b0\u589e\u91cd\u547d\u540d\u7ea6\u675f\u7684\u80fd\u529b\uff08Peter Eisentraut\uff09\n

", "text": "\u65b0\u589e\u91cd\u547d\u540d\u7ea6\u675f\u7684\u80fd\u529b\uff08Peter Eisentraut\uff09", "title": "\u65b0\u589e\u91cd\u547d\u540d\u7ea6\u675f\u7684\u80fd\u529b", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / \u7ea6\u675f", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.3", "source_hash": "c50c32433b292d9d71dfd493f6cb89da8247d9b9a2e1e9f91f226c3f812df7f8", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "\u7ea6\u675f"], "commit_groups": [], "identity_text": "Add the ability to rename constraints (Peter Eisentraut)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/077", "db_id": "e9fc5728db5dfe05a91d2d090e67f197", "patch_ids": [], "statement_hash": "474534866117f9506ab353f61fe56e5c3ba2f60b2300a1cf4d119fcfdab32320", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-e03daecdef5507f8", "migration": false}, {"id": "9.2.0-b7bb4048e1dc2880", "cves": [], "html": "

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", "text": "\u51cf\u5c11\u67d0\u4e9b ALTER TABLE ... ALTER COLUMN TYPE \u64cd\u4f5c\u91cd\u5efa\u8868\u548c\u7d22\u5f15\u7684\u9700\u8981\uff08Noah Misch\uff09 \u589e\u5927 varchar \u6216 varbit \u5217\u7684\u957f\u5ea6\u9650\u5236\uff0c\u6216\u8005\u5b8c\u5168\u79fb\u9664\u9650\u5236\uff0c\u4e0d\u518d\u9700\u8981\u91cd\u5199\u8868\u3002\u7c7b\u4f3c\u5730\uff0c\u589e\u5927 numeric \u5217\u5141\u8bb8\u7684\u7cbe\u5ea6\uff0c\u6216\u8005\u628a\u5217\u4ece\u53d7\u7ea6\u675f\u7684 numeric \u6539\u4e3a\u4e0d\u53d7\u7ea6\u675f\u7684 numeric\uff0c\u4e5f\u4e0d\u518d\u9700\u8981\u91cd\u5199\u8868\u3002\u5728\u6d89\u53ca interval\u3001timestamp \u548c timestamptz \u7c7b\u578b\u7684\u7c7b\u4f3c\u60c5\u51b5\u4e0b\uff0c\u4e5f\u53ef\u4ee5\u907f\u514d\u91cd\u5199\u8868\u3002", "title": "\u51cf\u5c11\u67d0\u4e9b ALTER TABLE ... ALTER COLUMN TYPE \u64cd\u4f5c\u91cd\u5efa\u8868\u548c\u7d22\u5f15\u7684\u9700\u8981", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / ALTER", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.4", "source_hash": "48b46dcfb61a0f4396259cb5b74ef7117bed13462539e00d46ed3fa5b7e4b6ae", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "ALTER"], "commit_groups": [], "identity_text": "Reduce need to rebuild tables and indexes for certain ALTER TABLE ... ALTER COLUMN TYPE operations (Noah Misch) Increasing the length limit for a varchar or varbit column, or removing the limit altogether, no longer requires a table rewrite. Similarly, increasing the allowable precision of a numeric column, or changing a column from constrained numeric to unconstrained numeric, no longer requires a table rewrite. Table rewrites are also avoided in similar cases involving the interval, timestamp, and timestamptz types.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/078", "db_id": "b629652c29121a6263e184ebb1f82318", "patch_ids": [], "statement_hash": "54758e4a62e5a66776fbd84ea776168a09e883e963cb9a44daca317eaca98c50", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-b7bb4048e1dc2880", "migration": false}, {"id": "9.2.0-265d1790500dcb32", "cves": [], "html": "

\u907f\u514d ALTER TABLE \u5728\u67d0\u4e9b\u4e0d\u5fc5\u8981\u7684\u60c5\u51b5\u4e0b\u91cd\u65b0\u9a8c\u8bc1\u5916\u952e\u7ea6\u675f\uff08Noah Misch\uff09\n

", "text": "\u907f\u514d ALTER TABLE \u5728\u67d0\u4e9b\u4e0d\u5fc5\u8981\u7684\u60c5\u51b5\u4e0b\u91cd\u65b0\u9a8c\u8bc1\u5916\u952e\u7ea6\u675f\uff08Noah Misch\uff09", "title": "\u907f\u514d ALTER TABLE \u5728\u67d0\u4e9b\u4e0d\u5fc5\u8981\u7684\u60c5\u51b5\u4e0b\u91cd\u65b0\u9a8c\u8bc1\u5916\u952e\u7ea6\u675f", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / ALTER", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.4", "source_hash": "620e8421763ed2cb1099c817f9e4ded1bb96b7ff5372a8bb65098b0a13454261", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "ALTER"], "commit_groups": [], "identity_text": "Avoid having ALTER TABLE revalidate foreign key constraints in some cases where it is not necessary (Noah Misch)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/079", "db_id": "d6efaf76be3e6aa31068c7caa9a784c0", "patch_ids": [], "statement_hash": "952d8b99f1b045292f1c60dde22e6bee39ded608d94e63fed0764fbcadf57b85", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-265d1790500dcb32", "migration": false}, {"id": "9.2.0-4d0f031c1877956d", "cves": [], "html": "

\u4e3a\u4e00\u4e9b ALTER \u547d\u4ee4\u65b0\u589e IF EXISTS \u9009\u9879\uff08Pavel Stehule\uff09\n

\u4f8b\u5982 ALTER FOREIGN TABLE IF EXISTS foo RENAME TO bar\u3002\n

", "text": "\u4e3a\u4e00\u4e9b ALTER \u547d\u4ee4\u65b0\u589e IF EXISTS \u9009\u9879\uff08Pavel Stehule\uff09 \u4f8b\u5982 ALTER FOREIGN TABLE IF EXISTS foo RENAME TO bar\u3002", "title": "\u4e3a\u4e00\u4e9b ALTER \u547d\u4ee4\u65b0\u589e IF EXISTS \u9009\u9879", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / ALTER", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.4", "source_hash": "d54cac133027e7e924e19649646b78da4f4496bbefcb3e724a82344f5698eb61", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "ALTER"], "commit_groups": [], "identity_text": "Add IF EXISTS options to some ALTER commands (Pavel Stehule) For example, ALTER FOREIGN TABLE IF EXISTS foo RENAME TO bar.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/080", "db_id": "efde5eaa7a6e6175b91245c8c5de3c79", "patch_ids": [], "statement_hash": "f61c4e888264ad140f08db72c80b6e32a72057a3c3528f24a68e40a7a694339e", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-4d0f031c1877956d", "migration": false}, {"id": "9.2.0-138d74a05e5ee8f8", "cves": [], "html": "

\u65b0\u589e ALTER FOREIGN DATA WRAPPER ... RENAME \u548c ALTER SERVER ... RENAME\uff08Peter Eisentraut\uff09\n

", "text": "\u65b0\u589e ALTER FOREIGN DATA WRAPPER ... RENAME \u548c ALTER SERVER ... RENAME\uff08Peter Eisentraut\uff09", "title": "\u65b0\u589e ALTER FOREIGN DATA WRAPPER ... RENAME \u548c ALTER SERVER ... RENAME", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / ALTER", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.4", "source_hash": "b5d9df70e7667b18889eb34a0cabf799b2dd4aa3cc893b5878f01c2890a92f5f", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "ALTER"], "commit_groups": [], "identity_text": "Add ALTER FOREIGN DATA WRAPPER ... RENAME and ALTER SERVER ... RENAME (Peter Eisentraut)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/081", "db_id": "133cfe0d2dff219f8242e0f5ad8290ba", "patch_ids": [], "statement_hash": "9bbf0b2c0190d7bbee830193eaaa60d28a89d41ae50e865f32352ca6cd17e503", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-138d74a05e5ee8f8", "migration": false}, {"id": "9.2.0-c530762485a9aa30", "cves": [], "html": "

\u65b0\u589e ALTER DOMAIN ... RENAME\uff08Peter Eisentraut\uff09\n

\u6b64\u524d\u5df2\u53ef\u4ee5\u7528 ALTER TYPE \u91cd\u547d\u540d\u57df\u3002\n

", "text": "\u65b0\u589e ALTER DOMAIN ... RENAME\uff08Peter Eisentraut\uff09 \u6b64\u524d\u5df2\u53ef\u4ee5\u7528 ALTER TYPE \u91cd\u547d\u540d\u57df\u3002", "title": "\u65b0\u589e ALTER DOMAIN ... RENAME", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / ALTER", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.4", "source_hash": "e1cb675efaf59a1d12edce5463f2a9167291a7637f1f0f3adae6e99502e0c2f7", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "ALTER"], "commit_groups": [], "identity_text": "Add ALTER DOMAIN ... RENAME (Peter Eisentraut) You could already rename domains using ALTER TYPE.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/082", "db_id": "74f190226d857773d6091e01fec60da1", "patch_ids": [], "statement_hash": "edc3b2990de8a135d96e07cbcc568c3b0eaa9c5b2b3eb5982d41f2f66cdff5c0", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-c530762485a9aa30", "migration": false}, {"id": "9.2.0-c3e6e05676553e0e", "cves": [], "html": "

\u8ba9 ALTER DOMAIN ... DROP CONSTRAINT \u5728\u7ea6\u675f\u4e0d\u5b58\u5728\u65f6\u629b\u51fa\u9519\u8bef\uff08Peter Eisentraut\uff09\n

\u5df2\u65b0\u589e IF EXISTS \u9009\u9879\u6765\u63d0\u4f9b\u5148\u524d\u7684\u884c\u4e3a\u3002\n

", "text": "\u8ba9 ALTER DOMAIN ... DROP CONSTRAINT \u5728\u7ea6\u675f\u4e0d\u5b58\u5728\u65f6\u629b\u51fa\u9519\u8bef\uff08Peter Eisentraut\uff09 \u5df2\u65b0\u589e IF EXISTS \u9009\u9879\u6765\u63d0\u4f9b\u5148\u524d\u7684\u884c\u4e3a\u3002", "title": "\u8ba9 ALTER DOMAIN ... DROP CONSTRAINT \u5728\u7ea6\u675f\u4e0d\u5b58\u5728\u65f6\u629b\u51fa\u9519\u8bef", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / ALTER", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.4", "source_hash": "4c8524925b7bd71467b4214b3597248ff873fc90f43e7712e15c9be6ad1c9790", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "ALTER"], "commit_groups": [], "identity_text": "Throw an error for ALTER DOMAIN ... DROP CONSTRAINT on a nonexistent constraint (Peter Eisentraut) An IF EXISTS option has been added to provide the previous behavior.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/083", "db_id": "1cf1705d860acc16219c7db5f5773bf4", "patch_ids": [], "statement_hash": "c0275745b4f275ab842b03d662715b3a71b2be8aa4c841c2705399ba711127a5", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-c3e6e05676553e0e", "migration": false}, {"id": "9.2.0-2938964fd1f2aa29", "cves": [], "html": "

\u5141\u8bb8\u4ece\u5916\u90e8\u8868\u3001\u89c6\u56fe\u548c\u7ec4\u5408\u7c7b\u578b\u6267\u884c CREATE TABLE (LIKE ...)\uff08Peter Eisentraut\uff09\n

\u4f8b\u5982\uff0c\u8fd9\u5141\u8bb8\u521b\u5efa\u4e00\u4e2a\u6a21\u5f0f\u4e0e\u67d0\u4e2a\u89c6\u56fe\u5339\u914d\u7684\u8868\u3002\n

", "text": "\u5141\u8bb8\u4ece\u5916\u90e8\u8868\u3001\u89c6\u56fe\u548c\u7ec4\u5408\u7c7b\u578b\u6267\u884c CREATE TABLE (LIKE ...)\uff08Peter Eisentraut\uff09 \u4f8b\u5982\uff0c\u8fd9\u5141\u8bb8\u521b\u5efa\u4e00\u4e2a\u6a21\u5f0f\u4e0e\u67d0\u4e2a\u89c6\u56fe\u5339\u914d\u7684\u8868\u3002", "title": "\u5141\u8bb8\u4ece\u5916\u90e8\u8868\u3001\u89c6\u56fe\u548c\u7ec4\u5408\u7c7b\u578b\u6267\u884c CREATE TABLE (LIKE ...)", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / CREATE TABLE", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.5", "source_hash": "7d174c446aa603333f78ee81445a7ab3c17ff6d9da83441997723b09f5761581", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "CREATE TABLE"], "commit_groups": [], "identity_text": "Allow CREATE TABLE (LIKE ...) from foreign tables, views, and composite types (Peter Eisentraut) For example, this allows a table to be created whose schema matches a view.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/084", "db_id": "dcb3f4a103f830c1b0a3a5aff6c09483", "patch_ids": [], "statement_hash": "84e8ac0ffcfc3659b2ab62fb1dae2c0eab87f695fac103ab4e3a783c12cee69f", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-2938964fd1f2aa29", "migration": false}, {"id": "9.2.0-d879f5e036f01a3a", "cves": [], "html": "

\u4fee\u590d CREATE TABLE (LIKE ...)\uff0c\u907f\u514d\u590d\u5236\u7d22\u5f15\u6ce8\u91ca\u65f6\u7684\u7d22\u5f15\u540d\u51b2\u7a81\uff08Tom Lane\uff09\n

", "text": "\u4fee\u590d CREATE TABLE (LIKE ...)\uff0c\u907f\u514d\u590d\u5236\u7d22\u5f15\u6ce8\u91ca\u65f6\u7684\u7d22\u5f15\u540d\u51b2\u7a81\uff08Tom Lane\uff09", "title": "\u4fee\u590d CREATE TABLE (LIKE ...)\uff0c\u907f\u514d\u590d\u5236\u7d22\u5f15\u6ce8\u91ca\u65f6\u7684\u7d22\u5f15\u540d\u51b2\u7a81", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / CREATE TABLE", "category": "bugfix", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.5", "source_hash": "49b37603986a2c209e70c2fffe28116e5c28e44e17578b14294e95325a13deb9", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "CREATE TABLE"], "commit_groups": [], "identity_text": "Fix CREATE TABLE (LIKE ...) to avoid index name conflicts when copying index comments (Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/085", "db_id": "6d3c9d5a108f32e62c7ee4600f1e81e8", "patch_ids": [], "statement_hash": "f03186d6279d55faf52f68e0dfbdf1ffe6f6293336d361382b1123b9cd22c46f", "relations": [], "category_label": "BUG \u4fee\u590d", "url": "/docs/compare/?release=9.2.0#9.2.0-d879f5e036f01a3a", "migration": false}, {"id": "9.2.0-1cd0c68ffc76f237", "cves": [], "html": "

\u4fee\u590d CREATE TABLE ... AS EXECUTE\uff0c\u4f7f\u5176\u5904\u7406 WITH NO DATA \u548c\u5217\u540d\u6307\u5b9a\uff08Tom Lane\uff09\n

", "text": "\u4fee\u590d CREATE TABLE ... AS EXECUTE\uff0c\u4f7f\u5176\u5904\u7406 WITH NO DATA \u548c\u5217\u540d\u6307\u5b9a\uff08Tom Lane\uff09", "title": "\u4fee\u590d CREATE TABLE ... AS EXECUTE\uff0c\u4f7f\u5176\u5904\u7406 WITH NO DATA \u548c\u5217\u540d\u6307\u5b9a", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / CREATE TABLE", "category": "bugfix", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.5", "source_hash": "20ccb2a9d5f874334ca32908b1b69bf7e5b61a7ee57108835f64103d461263b6", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "CREATE TABLE"], "commit_groups": [], "identity_text": "Fix CREATE TABLE ... AS EXECUTE to handle WITH NO DATA and column name specifications (Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/086", "db_id": "61cbbf722fc1e2f316e1bfe8e2ee9311", "patch_ids": [], "statement_hash": "4c843d6e0d3174372c5734dc5504a3188cc81885c00ba7a999addf04e9abd10f", "relations": [], "category_label": "BUG \u4fee\u590d", "url": "/docs/compare/?release=9.2.0#9.2.0-1cd0c68ffc76f237", "migration": false}, {"id": "9.2.0-a96f8869a1e0678e", "cves": [], "html": "

\u4e3a\u89c6\u56fe\u65b0\u589e security_barrier \u9009\u9879\uff08KaiGai Kohei\u3001Robert Haas\uff09\n

\u6b64\u9009\u9879\u9632\u6b62\u53ef\u80fd\u5411\u7528\u6237\u66b4\u9732\u89c6\u56fe\u4fdd\u62a4\u6570\u636e\u7684\u4f18\u5316\uff0c\u4f8b\u5982\u628a\u6d89\u53ca\u4e0d\u5b89\u5168\u51fd\u6570\u7684\u5b50\u53e5\u4e0b\u63a8\u5230\u89c6\u56fe\u7684 WHERE \u5b50\u53e5\u3002\u8fd9\u7c7b\u89c6\u56fe\u7684\u6027\u80fd\u9884\u8ba1\u4f1a\u6bd4\u666e\u901a\u89c6\u56fe\u5dee\u3002\n

", "text": "\u4e3a\u89c6\u56fe\u65b0\u589e security_barrier \u9009\u9879\uff08KaiGai Kohei\u3001Robert Haas\uff09 \u6b64\u9009\u9879\u9632\u6b62\u53ef\u80fd\u5411\u7528\u6237\u66b4\u9732\u89c6\u56fe\u4fdd\u62a4\u6570\u636e\u7684\u4f18\u5316\uff0c\u4f8b\u5982\u628a\u6d89\u53ca\u4e0d\u5b89\u5168\u51fd\u6570\u7684\u5b50\u53e5\u4e0b\u63a8\u5230\u89c6\u56fe\u7684 WHERE \u5b50\u53e5\u3002\u8fd9\u7c7b\u89c6\u56fe\u7684\u6027\u80fd\u9884\u8ba1\u4f1a\u6bd4\u666e\u901a\u89c6\u56fe\u5dee\u3002", "title": "\u4e3a\u89c6\u56fe\u65b0\u589e security_barrier \u9009\u9879", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / \u5bf9\u8c61\u6743\u9650", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.6", "source_hash": "c5bcb59b943281697ceb795018db99db554f3dd183654f2195cbc428f70014b9", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "\u5bf9\u8c61\u6743\u9650"], "commit_groups": [], "identity_text": "Add a security_barrier option for views (KaiGai Kohei, Robert Haas) This option prevents optimizations that might allow view-protected data to be exposed to users, for example pushing a clause involving an insecure function into the WHERE clause of the view. Such views can be expected to perform more poorly than ordinary views.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/087", "db_id": "80fcbe3821785ddc4214bc7826756a9e", "patch_ids": [], "statement_hash": "5ef68b399f8eee067aa60ad77cd9ad481a1e9179b3cebd33083241c964b6fed9", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-a96f8869a1e0678e", "migration": false}, {"id": "9.2.0-770fb98c1144eb78", "cves": [], "html": "

\u65b0\u589e LEAKPROOF \u51fd\u6570\u5c5e\u6027\uff0c\u7528\u4e8e\u6807\u8bb0\u53ef\u4ee5\u5b89\u5168\u4e0b\u63a8\u5230 security_barrier \u89c6\u56fe\u7684\u51fd\u6570\uff08KaiGai Kohei\uff09\n

", "text": "\u65b0\u589e LEAKPROOF \u51fd\u6570\u5c5e\u6027\uff0c\u7528\u4e8e\u6807\u8bb0\u53ef\u4ee5\u5b89\u5168\u4e0b\u63a8\u5230 security_barrier \u89c6\u56fe\u7684\u51fd\u6570\uff08KaiGai Kohei\uff09", "title": "\u65b0\u589e LEAKPROOF \u51fd\u6570\u5c5e\u6027\uff0c\u7528\u4e8e\u6807\u8bb0\u53ef\u4ee5\u5b89\u5168\u4e0b\u63a8\u5230 security_barrier \u89c6\u56fe\u7684\u51fd\u6570", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / \u5bf9\u8c61\u6743\u9650", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.6", "source_hash": "53ed3fdf8071085ef696be21367a06fc44481144b95db494b2ba1760bcc712d0", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "\u5bf9\u8c61\u6743\u9650"], "commit_groups": [], "identity_text": "Add a new LEAKPROOF function attribute to mark functions that can safely be pushed down into security_barrier views (KaiGai Kohei)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/088", "db_id": "2b67deb0c19b2eb05de21f76241826c8", "patch_ids": [], "statement_hash": "f59d91b2401ea3d2df96589f186a25a0a1d8932e6d01ec9d9ffe9f3cf594bab8", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-770fb98c1144eb78", "migration": false}, {"id": "9.2.0-de1a73a1b70b289b", "cves": [], "html": "

\u65b0\u589e\u5bf9\u6570\u636e\u7c7b\u578b\u6743\u9650\u7684\u652f\u6301\uff08Peter Eisentraut\uff09\n

\u8fd9\u65b0\u589e\u4e86\u5bf9\u7c7b\u578b\u548c\u57df\u4e0a\u7b26\u5408 SQL \u6807\u51c6\u7684 USAGE \u6743\u9650\u7684\u652f\u6301\u3002\u5176\u610f\u56fe\u662f\u80fd\u591f\u9650\u5236\u54ea\u4e9b\u7528\u6237\u53ef\u4ee5\u5728\u7c7b\u578b\u4e0a\u521b\u5efa\u4f9d\u8d56\uff0c\u56e0\u4e3a\u8fd9\u7c7b\u4f9d\u8d56\u4f1a\u9650\u5236\u6240\u6709\u8005\u66f4\u6539\u7c7b\u578b\u7684\u80fd\u529b\u3002\n

", "text": "\u65b0\u589e\u5bf9\u6570\u636e\u7c7b\u578b\u6743\u9650\u7684\u652f\u6301\uff08Peter Eisentraut\uff09 \u8fd9\u65b0\u589e\u4e86\u5bf9\u7c7b\u578b\u548c\u57df\u4e0a\u7b26\u5408 SQL \u6807\u51c6\u7684 USAGE \u6743\u9650\u7684\u652f\u6301\u3002\u5176\u610f\u56fe\u662f\u80fd\u591f\u9650\u5236\u54ea\u4e9b\u7528\u6237\u53ef\u4ee5\u5728\u7c7b\u578b\u4e0a\u521b\u5efa\u4f9d\u8d56\uff0c\u56e0\u4e3a\u8fd9\u7c7b\u4f9d\u8d56\u4f1a\u9650\u5236\u6240\u6709\u8005\u66f4\u6539\u7c7b\u578b\u7684\u80fd\u529b\u3002", "title": "\u65b0\u589e\u5bf9\u6570\u636e\u7c7b\u578b\u6743\u9650\u7684\u652f\u6301", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / \u5bf9\u8c61\u6743\u9650", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.6", "source_hash": "cb9d63648f12fa70e571d787681bcaa4e3fa182640820aa56857c45eaf1aefe8", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "\u5bf9\u8c61\u6743\u9650"], "commit_groups": [], "identity_text": "Add support for privileges on data types (Peter Eisentraut) This adds support for the SQL-conforming USAGE privilege on types and domains. The intent is to be able to restrict which users can create dependencies on types, since such dependencies limit the owner's ability to alter the type.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/089", "db_id": "61e3afd2e43f71dcd1126e50096ac872", "patch_ids": [], "statement_hash": "4970590ae12a01651d0ee1e215cd35fa127b68b98d22e50833c186fcecd2c9f6", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-de1a73a1b70b289b", "migration": false}, {"id": "9.2.0-15295e894fd566bd", "cves": [], "html": "

\u5728 SELECT INTO / CREATE TABLE AS \u4e2d\u68c0\u67e5 INSERT \u6743\u9650\uff08KaiGai Kohei\uff09\n

\u7531\u4e8e\u5bf9\u8c61\u662f\u7531 SELECT INTO \u6216 CREATE TABLE AS \u521b\u5efa\u7684\uff0c\u521b\u5efa\u8005\u901a\u5e38\u5e94\u62e5\u6709\u63d2\u5165\u6743\u9650\uff1b\u4f46\u5b58\u5728\u4e00\u4e9b\u4f8b\u5916\u60c5\u51b5\uff0c\u4f8b\u5982 ALTER DEFAULT PRIVILEGES \u79fb\u9664\u4e86\u8fd9\u7c7b\u6743\u9650\u65f6\u3002\n

", "text": "\u5728 SELECT INTO / CREATE TABLE AS \u4e2d\u68c0\u67e5 INSERT \u6743\u9650\uff08KaiGai Kohei\uff09 \u7531\u4e8e\u5bf9\u8c61\u662f\u7531 SELECT INTO \u6216 CREATE TABLE AS \u521b\u5efa\u7684\uff0c\u521b\u5efa\u8005\u901a\u5e38\u5e94\u62e5\u6709\u63d2\u5165\u6743\u9650\uff1b\u4f46\u5b58\u5728\u4e00\u4e9b\u4f8b\u5916\u60c5\u51b5\uff0c\u4f8b\u5982 ALTER DEFAULT PRIVILEGES \u79fb\u9664\u4e86\u8fd9\u7c7b\u6743\u9650\u65f6\u3002", "title": "\u5728 SELECT INTO / CREATE TABLE AS \u4e2d\u68c0\u67e5 INSERT \u6743\u9650", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c / \u5bf9\u8c61\u6743\u9650", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.6.6", "source_hash": "2b32cdfebc5c9f9e7d8cd726b73569ce75dc555c6e68c70484251bd7656f84dd", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c", "\u5bf9\u8c61\u6743\u9650"], "commit_groups": [], "identity_text": "Check for INSERT privileges in SELECT INTO / CREATE TABLE AS (KaiGai Kohei) Because the object is being created by SELECT INTO or CREATE TABLE AS, the creator would ordinarily have insert permissions; but there are corner cases where this is not true, such as when ALTER DEFAULT PRIVILEGES has removed such permissions.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/090", "db_id": "4372e093791522c8a396006707c5bf97", "patch_ids": [], "statement_hash": "790366a6721bef24d1d404a60b601e8b3f0247763ce6c45d01f68e57b380ce0b", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-15295e894fd566bd", "migration": false}, {"id": "9.2.0-8968fd65d992442d", "cves": [], "html": "

\u5141\u8bb8 VACUUM \u66f4\u5bb9\u6613\u5730\u8df3\u8fc7\u65e0\u6cd5\u9501\u5b9a\u7684\u9875\u9762\uff08Simon Riggs\u3001Robert Haas\uff09\n

\u6b64\u53d8\u66f4\u5e94\u80fd\u5927\u5e45\u51cf\u5c11 VACUUM \u56e0\u7b49\u5f85\u5176\u4ed6\u4f1a\u8bdd\u800c\u201c\u5361\u4f4f\u201d\u7684\u60c5\u51b5\u3002\n

", "text": "\u5141\u8bb8 VACUUM \u66f4\u5bb9\u6613\u5730\u8df3\u8fc7\u65e0\u6cd5\u9501\u5b9a\u7684\u9875\u9762\uff08Simon Riggs\u3001Robert Haas\uff09 \u6b64\u53d8\u66f4\u5e94\u80fd\u5927\u5e45\u51cf\u5c11 VACUUM \u56e0\u7b49\u5f85\u5176\u4ed6\u4f1a\u8bdd\u800c\u201c\u5361\u4f4f\u201d\u7684\u60c5\u51b5\u3002", "title": "\u5141\u8bb8 VACUUM \u66f4\u5bb9\u6613\u5730\u8df3\u8fc7\u65e0\u6cd5\u9501\u5b9a\u7684\u9875\u9762", "commits": [], "section": "\u5de5\u5177\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.7", "source_hash": "5a73c99b293d49d781b08126bbe33603d148bee1ca56d9b843dd6be36d4ec28d", "section_path": ["\u5de5\u5177\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Allow VACUUM to more easily skip pages that cannot be locked (Simon Riggs, Robert Haas) This change should greatly reduce the incidence of VACUUM getting stuck waiting for other sessions.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/091", "db_id": "eb233fb7a26dce8b8ccbdc268eeb191b", "patch_ids": [], "statement_hash": "480749d44c7a30cf8fe53e394b9fb31ff729367774b2ec5476e5ef8d053cd28c", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-8968fd65d992442d", "migration": false}, {"id": "9.2.0-f1cd3d17985bb495", "cves": [], "html": "

\u8ba9 EXPLAIN (BUFFERS) \u7edf\u8ba1\u88ab\u5f04\u810f\u548c\u5199\u51fa\u7684\u5757\uff08Robert Haas\uff09\n

", "text": "\u8ba9 EXPLAIN (BUFFERS) \u7edf\u8ba1\u88ab\u5f04\u810f\u548c\u5199\u51fa\u7684\u5757\uff08Robert Haas\uff09", "title": "\u8ba9 EXPLAIN (BUFFERS) \u7edf\u8ba1\u88ab\u5f04\u810f\u548c\u5199\u51fa\u7684\u5757", "commits": [], "section": "\u5de5\u5177\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.7", "source_hash": "150dba7be8b7e32b0f566290fe899c103061c99a0b7faa4cc7e366494aad825b", "section_path": ["\u5de5\u5177\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Make EXPLAIN (BUFFERS) count blocks dirtied and written (Robert Haas)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/092", "db_id": "b8dbac5d1d76e1d8af02dfb3ac030f36", "patch_ids": [], "statement_hash": "975e5fbda739d67cec11f22d7a7c484be7e7bef9216b8703ddf19f93938056cf", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-f1cd3d17985bb495", "migration": false}, {"id": "9.2.0-4526fa986daf7183", "cves": [], "html": "

\u8ba9 EXPLAIN ANALYZE \u62a5\u544a\u88ab\u8fc7\u6ee4\u6b65\u9aa4\u62d2\u7edd\u7684\u884c\u6570\uff08Marko Tiikkaja\uff09\n

", "text": "\u8ba9 EXPLAIN ANALYZE \u62a5\u544a\u88ab\u8fc7\u6ee4\u6b65\u9aa4\u62d2\u7edd\u7684\u884c\u6570\uff08Marko Tiikkaja\uff09", "title": "\u8ba9 EXPLAIN ANALYZE \u62a5\u544a\u88ab\u8fc7\u6ee4\u6b65\u9aa4\u62d2\u7edd\u7684\u884c\u6570", "commits": [], "section": "\u5de5\u5177\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.7", "source_hash": "fd0dd15eba3828cc5b399ca3d9fea5a9e2dd8292f0d6bb95cf0f0c14ec2ea31b", "section_path": ["\u5de5\u5177\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Make EXPLAIN ANALYZE report the number of rows rejected by filter steps (Marko Tiikkaja)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/093", "db_id": "7370c12cab819ec724a4e0b540a80cc4", "patch_ids": [], "statement_hash": "ace604b52489a7d9e8c39461a9e78ce64d8d3063e7a828467bf8d80183464de9", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-4526fa986daf7183", "migration": false}, {"id": "9.2.0-90daab2dcd82e33e", "cves": [], "html": "

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", "text": "\u5141\u8bb8 EXPLAIN ANALYZE \u5728\u4e0d\u9700\u8981\u65f6\u95f4\u503c\u65f6\u907f\u514d\u8ba1\u65f6\u5f00\u9500\uff08Tomas Vondra\uff09 \u8fd9\u901a\u8fc7\u628a\u65b0\u7684 TIMING \u9009\u9879\u8bbe\u4e3a FALSE \u5b9e\u73b0\u3002", "title": "\u5141\u8bb8 EXPLAIN ANALYZE \u5728\u4e0d\u9700\u8981\u65f6\u95f4\u503c\u65f6\u907f\u514d\u8ba1\u65f6\u5f00\u9500", "commits": [], "section": "\u5de5\u5177\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.7", "source_hash": "9b5f545e9e4a040d9c0931d6116a09869a9d9c73535f9946220b4a7c1c94c832", "section_path": ["\u5de5\u5177\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Allow EXPLAIN ANALYZE to avoid timing overhead when time values are not wanted (Tomas Vondra) This is accomplished by setting the new TIMING option to FALSE.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/094", "db_id": "6a4880ccf4f41520aeef1c114950ab39", "patch_ids": [], "statement_hash": "b4f435c6756ba17a6cc294a6b78c7fecd4ecee9637f9e705bd93a9a8a5dad8fe", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-90daab2dcd82e33e", "migration": false}, {"id": "9.2.0-7f70735bbd76f529", "cves": [], "html": "

\u65b0\u589e\u5bf9\u8303\u56f4\u6570\u636e\u7c7b\u578b\u7684\u652f\u6301\uff08Jeff Davis\u3001Tom Lane\u3001Alexander Korotkov\uff09\n

\u8303\u56f4\u6570\u636e\u7c7b\u578b\u5b58\u50a8\u5c5e\u4e8e\u5176\u57fa\u7840\u7c7b\u578b\u7684\u4e0b\u754c\u548c\u4e0a\u754c\u3002\u5b83\u652f\u6301\u5305\u542b\u3001\u91cd\u53e0\u548c\u4ea4\u96c6\u7b49\u64cd\u4f5c\u3002\n

", "text": "\u65b0\u589e\u5bf9\u8303\u56f4\u6570\u636e\u7c7b\u578b\u7684\u652f\u6301\uff08Jeff Davis\u3001Tom Lane\u3001Alexander Korotkov\uff09 \u8303\u56f4\u6570\u636e\u7c7b\u578b\u5b58\u50a8\u5c5e\u4e8e\u5176\u57fa\u7840\u7c7b\u578b\u7684\u4e0b\u754c\u548c\u4e0a\u754c\u3002\u5b83\u652f\u6301\u5305\u542b\u3001\u91cd\u53e0\u548c\u4ea4\u96c6\u7b49\u64cd\u4f5c\u3002", "title": "\u65b0\u589e\u5bf9\u8303\u56f4\u6570\u636e\u7c7b\u578b\u7684\u652f\u6301", "commits": [], "section": "\u6570\u636e\u7c7b\u578b", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.8", "source_hash": "ee7af61a49407a4ad7dc6f932d41808dacbc685d923dda9c1eb15665d532d176", "section_path": ["\u6570\u636e\u7c7b\u578b"], "commit_groups": [], "identity_text": "Add support for range data types (Jeff Davis, Tom Lane, Alexander Korotkov) A range data type stores a lower and upper bound belonging to its base data type. It supports operations like contains, overlaps, and intersection.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/095", "db_id": "441a0e3a844780ed1aed2a8e66de68f8", "patch_ids": [], "statement_hash": "15b13ef76a26b3d877d5a54f3e52d6ce212903d5887e1f32a25cbfa1f3af2de4", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-7f70735bbd76f529", "migration": false}, {"id": "9.2.0-e5ae1cd4f9f8eea0", "cves": [], "html": "

\u65b0\u589e JSON \u6570\u636e\u7c7b\u578b\uff08Robert Haas\uff09\n

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", "text": "\u65b0\u589e JSON \u6570\u636e\u7c7b\u578b\uff08Robert Haas\uff09 \u8be5\u7c7b\u578b\u5b58\u50a8\u7ecf\u8fc7\u6b63\u786e\u9a8c\u8bc1\u7684 JSON\uff08JavaScript \u5bf9\u8c61\u8868\u793a\u6cd5\uff09\u6570\u636e\u3002", "title": "\u65b0\u589e JSON \u6570\u636e\u7c7b\u578b", "commits": [], "section": "\u6570\u636e\u7c7b\u578b", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.8", "source_hash": "4e420ec0e7d03d01c1255afab45df662551525d6ad3059d94fac2432592a0a40", "section_path": ["\u6570\u636e\u7c7b\u578b"], "commit_groups": [], "identity_text": "Add a JSON data type (Robert Haas) This type stores JSON (JavaScript Object Notation) data with proper validation.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/096", "db_id": "ac38927f8d5871af3808ef0709a8b6e1", "patch_ids": [], "statement_hash": "75ce482cc964f88d16f336a4894d634e823d26c413cbea59569863becaaa9fcf", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-e5ae1cd4f9f8eea0", "migration": false}, {"id": "9.2.0-04be29419dcbb253", "cves": [], "html": "

\u65b0\u589e array_to_json() \u548c row_to_json()\uff08Andrew Dunstan\uff09\n

", "text": "\u65b0\u589e array_to_json() \u548c row_to_json()\uff08Andrew Dunstan\uff09", "title": "\u65b0\u589e array_to_json() \u548c row_to_json()", "commits": [], "section": "\u6570\u636e\u7c7b\u578b", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.8", "source_hash": "67cc8db9a60f1685301b8df89a29ed4c61b68de52e238f97c2eaa06186112d61", "section_path": ["\u6570\u636e\u7c7b\u578b"], "commit_groups": [], "identity_text": "Add array_to_json() and row_to_json() (Andrew Dunstan)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/097", "db_id": "804f5ba8d93c38a8e80fd72212192b50", "patch_ids": [], "statement_hash": "b5502911af6bbc4b44c183c3995dcc4a1c9192cf04850e37191704e7446de9c7", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-04be29419dcbb253", "migration": false}, {"id": "9.2.0-d7a5601685089ec0", "cves": [], "html": "

\u65b0\u589e SMALLSERIAL \u6570\u636e\u7c7b\u578b\uff08Mike Pultz\uff09\n

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", "text": "\u65b0\u589e SMALLSERIAL \u6570\u636e\u7c7b\u578b\uff08Mike Pultz\uff09 \u5b83\u7c7b\u4f3c\u4e8e SERIAL\uff0c\u53ea\u662f\u628a\u5e8f\u5217\u5b58\u50a8\u5728\u4e24\u5b57\u8282\u6574\u6570\u5217\uff08int2\uff09\u4e2d\u3002", "title": "\u65b0\u589e SMALLSERIAL \u6570\u636e\u7c7b\u578b", "commits": [], "section": "\u6570\u636e\u7c7b\u578b", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.8", "source_hash": "4d43cd4d77ee45542478e622592f729d7353fd699640504cf6ed8ce2a282ff7f", "section_path": ["\u6570\u636e\u7c7b\u578b"], "commit_groups": [], "identity_text": "Add a SMALLSERIAL data type (Mike Pultz) This is like SERIAL, except it stores the sequence in a two-byte integer column (int2).", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/098", "db_id": "95d1ad51052ba3155186e62196d9f34d", "patch_ids": [], "statement_hash": "7c7d291560035ca2283c2a263251e9ad3a00d442c70b8b6e0e27b61713369cc3", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-d7a5601685089ec0", "migration": false}, {"id": "9.2.0-724b5bcfbe2294a3", "cves": [], "html": "

\u5141\u8bb8\u57df\u58f0\u660e\u4e3a NOT VALID\uff08\u00c1lvaro Herrera\uff09\n

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", "text": "\u5141\u8bb8\u57df\u58f0\u660e\u4e3a NOT VALID\uff08\u00c1lvaro Herrera\uff09 \u6b64\u9009\u9879\u53ef\u4ee5\u5728\u521b\u5efa\u57df\u65f6\u8bbe\u7f6e\uff0c\u6216\u8005\u901a\u8fc7 ALTER DOMAIN ... ADD CONSTRAINT ... NOT VALID \u8bbe\u7f6e\u3002ALTER DOMAIN ... VALIDATE CONSTRAINT \u4f1a\u5b8c\u5168\u9a8c\u8bc1\u7ea6\u675f\u3002", "title": "\u5141\u8bb8\u57df\u58f0\u660e\u4e3a NOT VALID", "commits": [], "section": "\u6570\u636e\u7c7b\u578b", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.8", "source_hash": "d455e06cf5321ebd666c212a82e8892ec67c4e763d177a2d11c9456e55a095b0", "section_path": ["\u6570\u636e\u7c7b\u578b"], "commit_groups": [], "identity_text": "Allow domains to be declared NOT VALID (\u00c1lvaro Herrera) This option can be set at domain creation time, or via ALTER DOMAIN ... ADD CONSTRAINT ... NOT VALID. ALTER DOMAIN ... VALIDATE CONSTRAINT fully validates the constraint.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/099", "db_id": "63305d5ef86767b43e523fec07893b8f", "patch_ids": [], "statement_hash": "1371c1fea4535555c975385cff101e4b9c5ffcccc1b2e7ed344f1ab6587c99ff", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-724b5bcfbe2294a3", "migration": false}, {"id": "9.2.0-75a6aa9b84de381c", "cves": [], "html": "

\u4e3a money \u6570\u636e\u7c7b\u578b\u652f\u6301\u66f4\u591a\u533a\u57df\u7279\u5b9a\u7684\u683c\u5f0f\u5316\u9009\u9879\uff08Tom Lane\uff09\n

\u5177\u4f53\u800c\u8a00\uff0c\u9075\u5faa POSIX \u4e2d\u5173\u4e8e\u8d27\u5e01\u8f93\u51fa\u4e2d\u503c\u3001\u7b26\u53f7\u548c\u8d27\u5e01\u7b26\u53f7\u987a\u5e8f\u7684\u6240\u6709\u9009\u9879\u3002\u6b64\u5916\uff0c\u786e\u4fdd\u5343\u4f4d\u5206\u9694\u7b26\u53ea\u63d2\u5165\u5728\u5c0f\u6570\u70b9\u5de6\u4fa7\uff0c\u8fd9\u662f POSIX \u7684\u8981\u6c42\u3002\n

", "text": "\u4e3a money \u6570\u636e\u7c7b\u578b\u652f\u6301\u66f4\u591a\u533a\u57df\u7279\u5b9a\u7684\u683c\u5f0f\u5316\u9009\u9879\uff08Tom Lane\uff09 \u5177\u4f53\u800c\u8a00\uff0c\u9075\u5faa POSIX \u4e2d\u5173\u4e8e\u8d27\u5e01\u8f93\u51fa\u4e2d\u503c\u3001\u7b26\u53f7\u548c\u8d27\u5e01\u7b26\u53f7\u987a\u5e8f\u7684\u6240\u6709\u9009\u9879\u3002\u6b64\u5916\uff0c\u786e\u4fdd\u5343\u4f4d\u5206\u9694\u7b26\u53ea\u63d2\u5165\u5728\u5c0f\u6570\u70b9\u5de6\u4fa7\uff0c\u8fd9\u662f POSIX \u7684\u8981\u6c42\u3002", "title": "\u4e3a money \u6570\u636e\u7c7b\u578b\u652f\u6301\u66f4\u591a\u533a\u57df\u7279\u5b9a\u7684\u683c\u5f0f\u5316\u9009\u9879", "commits": [], "section": "\u6570\u636e\u7c7b\u578b", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.8", "source_hash": "acf2e604efe2cb9e10ec287f465d4e98c9607ab5e18a40586329c281809f3cc0", "section_path": ["\u6570\u636e\u7c7b\u578b"], "commit_groups": [], "identity_text": "Support more locale-specific formatting options for the money data type (Tom Lane) Specifically, honor all the POSIX options for ordering of the value, sign, and currency symbol in monetary output. Also, make sure that the thousands separator is only inserted to the left of the decimal point, as required by POSIX.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/100", "db_id": "992cdd2a5360044e5dd0fbf09dcebd54", "patch_ids": [], "statement_hash": "8840a2cc562f928c462953e2b9b2e0ca957d4bd48e189845c7e0f6581c702d61", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-75a6aa9b84de381c", "migration": false}, {"id": "9.2.0-a1796bb62dd8871a", "cves": [], "html": "

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\u5141\u8bb8 xpath() \u5728\u7ed9\u5b9a\u6807\u91cf\u503c\u65f6\u8fd4\u56de\u5355\u5143\u7d20 XML \u6570\u7ec4\uff08Florian Pflug\uff09\n

\u6b64\u524d\u5b83\u8fd4\u56de\u7a7a\u6570\u7ec4\u3002\u6b64\u53d8\u66f4\u8fd8\u4f1a\u4f7f xpath_exists() \u5bf9\u8fd9\u7c7b\u8868\u8fbe\u5f0f\u8fd4\u56de\u771f\u800c\u4e0d\u662f\u5047\u3002\n

", "text": "\u5141\u8bb8 xpath() \u5728\u7ed9\u5b9a\u6807\u91cf\u503c\u65f6\u8fd4\u56de\u5355\u5143\u7d20 XML \u6570\u7ec4\uff08Florian Pflug\uff09 \u6b64\u524d\u5b83\u8fd4\u56de\u7a7a\u6570\u7ec4\u3002\u6b64\u53d8\u66f4\u8fd8\u4f1a\u4f7f xpath_exists() \u5bf9\u8fd9\u7c7b\u8868\u8fbe\u5f0f\u8fd4\u56de\u771f\u800c\u4e0d\u662f\u5047\u3002", "title": "\u5141\u8bb8 xpath() \u5728\u7ed9\u5b9a\u6807\u91cf\u503c\u65f6\u8fd4\u56de\u5355\u5143\u7d20 XML \u6570\u7ec4", "commits": [], "section": "\u6570\u636e\u7c7b\u578b", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.8", "source_hash": "b6c0268905021aa1a89b62259bf44ed14bb537ba930828cd7c79662653cfcd1b", "section_path": ["\u6570\u636e\u7c7b\u578b"], "commit_groups": [], "identity_text": "Allow xpath() to return a single-element XML array when supplied a scalar value (Florian Pflug) Previously, it returned an empty array. This change will also cause xpath_exists() to return true, not false, for such expressions.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/102", "db_id": "25c776cc7e60d29ea2ff53f4f08c3b11", "patch_ids": [], "statement_hash": "40a7b33ca6f7bbfaa849bf3e3a2e7cbb70c2f8335eccebf07da097d6e85c8f10", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-310cdd1cb241b4e0", "migration": false}, {"id": "9.2.0-c9dd762e5d0ad953", "cves": [], "html": "

\u6539\u8fdb XML \u9519\u8bef\u5904\u7406\u7684\u5065\u58ee\u6027\uff08Florian Pflug\uff09\n

", "text": "\u6539\u8fdb XML \u9519\u8bef\u5904\u7406\u7684\u5065\u58ee\u6027\uff08Florian Pflug\uff09", "title": "\u6539\u8fdb XML \u9519\u8bef\u5904\u7406\u7684\u5065\u58ee\u6027", "commits": [], "section": "\u6570\u636e\u7c7b\u578b", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.8", "source_hash": "108d3ea48a3b7fd52cbc500b134eade6ce1882b9515c1977fc76c88fab29982a", "section_path": ["\u6570\u636e\u7c7b\u578b"], "commit_groups": [], "identity_text": "Improve XML error handling to be more robust (Florian Pflug)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/103", "db_id": "68acd0f7d6d5dfe84c80a5c2a2a24c88", "patch_ids": [], "statement_hash": "8bcfb17e30d93c3cc0b77dd6c105213852d8b4de7f047910e6a7feeee042d144", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-c9dd762e5d0ad953", "migration": false}, {"id": "9.2.0-f908a633e63b9b2c", "cves": [], "html": "

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", "text": "\u5141\u8bb8\u975e\u8d85\u7ea7\u7528\u6237\u5bf9\u5c5e\u4e8e\u540c\u4e00\u7528\u6237\u7684\u5176\u4ed6\u4f1a\u8bdd\u4f7f\u7528 pg_cancel_backend() \u548c pg_terminate_backend()\uff08Magnus Hagander\u3001Josh Kupershmidt\u3001Dan Farina\uff09 \u6b64\u524d\u53ea\u6709\u8d85\u7ea7\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b\u51fd\u6570\u3002", "title": "\u5141\u8bb8\u975e\u8d85\u7ea7\u7528\u6237\u5bf9\u5c5e\u4e8e\u540c\u4e00\u7528\u6237\u7684\u5176\u4ed6\u4f1a\u8bdd\u4f7f\u7528 pg_cancel_backend() \u548c pg_terminate_backend()", "commits": [], "section": "\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.9", "source_hash": "85755d92c65a7461d4d67c7e5bb6fd8b2c54cbf6e8b11013da7047056acf655c", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Allow non-superusers to use pg_cancel_backend() and pg_terminate_backend() on other sessions belonging to the same user (Magnus Hagander, Josh Kupershmidt, Dan Farina) Previously only superusers were allowed to use these functions.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/104", "db_id": "766d47c43dd512a31db41b8275ed2192", "patch_ids": [], "statement_hash": "b4d94d614bee122a62d2b103e7d628d98a9decac4b64b1f18aab8931bf28c713", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-f908a633e63b9b2c", "migration": false}, {"id": "9.2.0-6041c6ac608dad64", "cves": [], "html": "

\u5141\u8bb8\u5bfc\u5165\u548c\u5bfc\u51fa\u4e8b\u52a1\u5feb\u7167\uff08Joachim Wieland\u3001Tom Lane\uff09\n

\u8fd9\u5141\u8bb8\u591a\u4e2a\u4e8b\u52a1\u5171\u4eab\u76f8\u540c\u7684\u6570\u636e\u5e93\u72b6\u6001\u89c6\u56fe\u3002\u5feb\u7167\u901a\u8fc7 pg_export_snapshot() \u5bfc\u51fa\uff0c\u5e76\u901a\u8fc7 SET TRANSACTION SNAPSHOT \u5bfc\u5165\u3002\u53ea\u80fd\u5bfc\u5165\u6765\u81ea\u5f53\u524d\u6b63\u5728\u8fd0\u884c\u7684\u4e8b\u52a1\u7684\u5feb\u7167\u3002\n

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\u652f\u6301\u5bf9\u8868\u8fbe\u5f0f\u4f7f\u7528 COLLATION FOR\uff08Peter Eisentraut\uff09\n

\u5b83\u8fd4\u56de\u4e00\u4e2a\u8868\u793a\u8be5\u8868\u8fbe\u5f0f\u6392\u5e8f\u89c4\u5219\u7684\u5b57\u7b26\u4e32\u3002\n

", "text": "\u652f\u6301\u5bf9\u8868\u8fbe\u5f0f\u4f7f\u7528 COLLATION FOR\uff08Peter Eisentraut\uff09 \u5b83\u8fd4\u56de\u4e00\u4e2a\u8868\u793a\u8be5\u8868\u8fbe\u5f0f\u6392\u5e8f\u89c4\u5219\u7684\u5b57\u7b26\u4e32\u3002", "title": "\u652f\u6301\u5bf9\u8868\u8fbe\u5f0f\u4f7f\u7528 COLLATION FOR", "commits": [], "section": "\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.9", "source_hash": "18366fc5a1997829ebd9114863ed64e8eb3ecb2afe277b0fb747cd937fc771f3", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Support COLLATION FOR on expressions (Peter Eisentraut) This returns a string representing the collation of the expression.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/106", "db_id": "c40d5a62a3f774edb558c48e87fa3802", "patch_ids": [], "statement_hash": "0bfb909bbb2be29d21ed286c0036a38d2194e79bec45615da005896a878ed2ee", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-714522d62713ff2e", "migration": false}, {"id": "9.2.0-5500343fc50587cc", "cves": [], "html": "

\u65b0\u589e pg_opfamily_is_visible()\uff08Josh Kupershmidt\uff09\n

", "text": "\u65b0\u589e pg_opfamily_is_visible()\uff08Josh Kupershmidt\uff09", "title": "\u65b0\u589e pg_opfamily_is_visible()", "commits": [], "section": "\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.9", "source_hash": "8e933192e77fc14966fb7ac2106621674cfc948001ba20c605b1acd55375afc7", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Add pg_opfamily_is_visible() (Josh Kupershmidt)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/107", "db_id": "b6fbd1531a32e84ffb726ee0ddc8cca1", "patch_ids": [], "statement_hash": "cf7655ce05a8938d47892c07d871c2db6eb8fedfdca66aae13d917c632deba9a", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-5500343fc50587cc", "migration": false}, {"id": "9.2.0-80e69129a4ca020a", "cves": [], "html": "

\u65b0\u589e pg_size_pretty() \u7684 numeric \u53d8\u4f53\uff0c\u4f9b pg_xlog_location_diff() \u4f7f\u7528\uff08Fujii Masao\uff09\n

", "text": "\u65b0\u589e pg_size_pretty() \u7684 numeric \u53d8\u4f53\uff0c\u4f9b pg_xlog_location_diff() \u4f7f\u7528\uff08Fujii Masao\uff09", "title": "\u65b0\u589e pg_size_pretty() \u7684 numeric \u53d8\u4f53\uff0c\u4f9b pg_xlog_location_diff() \u4f7f\u7528", "commits": [], "section": "\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.9", "source_hash": "8924cc46025e0f417a485d5bc492b791bc66465de8b13b2de890238c348e7c4b", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Add a numeric variant of pg_size_pretty() for use with pg_xlog_location_diff() (Fujii Masao)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/108", "db_id": "758fdef8c2074d5e9b4b19c03db1a4b3", "patch_ids": [], "statement_hash": "3989675e51dc796169110c3732ad2f4d92c455bb6d8c069a7fdc01142276e3d4", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-80e69129a4ca020a", "migration": false}, {"id": "9.2.0-e2bb10a5c90f4789", "cves": [], "html": "

\u65b0\u589e pg_trigger_depth() \u51fd\u6570\uff08Kevin Grittner\uff09\n

\u5b83\u62a5\u544a\u5f53\u524d\u89e6\u53d1\u5668\u8c03\u7528\u6df1\u5ea6\u3002\n

", "text": "\u65b0\u589e pg_trigger_depth() \u51fd\u6570\uff08Kevin Grittner\uff09 \u5b83\u62a5\u544a\u5f53\u524d\u89e6\u53d1\u5668\u8c03\u7528\u6df1\u5ea6\u3002", "title": "\u65b0\u589e pg_trigger_depth() \u51fd\u6570", "commits": [], "section": "\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.9", "source_hash": "0c63770f12facc771e269f3305bc5e9b41725afb6fde9ea6333038e9de653dee", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Add a pg_trigger_depth() function (Kevin Grittner) This reports the current trigger call depth.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/109", "db_id": "d08777fdfd20d4ee71f1f89e0dfaaf87", "patch_ids": [], "statement_hash": "b95a3eb7b0fce79233e19c8e7a2edf814203eef78d33e91324758b4801f7e50f", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-e2bb10a5c90f4789", "migration": false}, {"id": "9.2.0-13a37b31010f53fb", "cves": [], "html": "

\u5141\u8bb8 string_agg() \u5904\u7406 bytea \u503c\uff08Pavel Stehule\uff09\n

", "text": "\u5141\u8bb8 string_agg() \u5904\u7406 bytea \u503c\uff08Pavel Stehule\uff09", "title": "\u5141\u8bb8 string_agg() \u5904\u7406 bytea \u503c", "commits": [], "section": "\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.2.0/#id-1.11.6.29.5.9", "source_hash": "f786f0f0c4c40a84d87e3e96c4d89e0ead4148683259702f042a8373e72d97ea", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Allow string_agg() to process bytea values (Pavel Stehule)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.0/changes/110", "db_id": "a0c5f57db190508b036da64c436c2b18", "patch_ids": [], "statement_hash": "7aeb061d44739b28a5ef7db4671d5d31978f290577e76aea0ce5a3bb3f64130d", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.2.0#9.2.0-13a37b31010f53fb", "migration": false}, {"id": "9.2.0-895bf6d1db8d12c2", "cves": [], "html": "

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\u4f8b\u5982 ^(\\w+)( \\1)+$\u3002\u4ee5\u524d\u7684\u7248\u672c\u4e0d\u68c0\u67e5\u53cd\u5411\u5f15\u7528\u662f\u5426\u771f\u7684\u4e0e\u7b2c\u4e00\u6b21\u51fa\u73b0\u5339\u914d\u3002\n

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\u65b0\u589e\u4fe1\u606f\u6a21\u5f0f\u89c6\u56fe role_udt_grants\u3001udt_privileges \u548c user_defined_types\uff08Peter Eisentraut\uff09\n

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\u65b0\u589e EXECUTE \u7684 Tab \u8865\u5168\u652f\u6301\uff08Andreas Karlsson\uff09\n

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\u6539\u8fdb EXPLAIN \u6587\u6863\uff08Tom Lane\uff09\n

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