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", "text": "\u5728\u5c06date\u3001timestamp\u6216timestamptz\u7c7b\u578b\u7684\u503c\u8f6c\u6362\u4e3aJSON\u65f6\uff0c\u6309\u7b26\u5408 ISO 8601 \u7684\u683c\u5f0f\u5448\u73b0\u8fd9\u4e9b\u503c\uff08Andrew Dunstan\uff09 \u6b64\u524d\u8fd9\u4e9b\u503c\u6309\u5f53\u524dDateStyle\u8bbe\u7f6e\u5448\u73b0\uff1b\u4f46\u8bb8\u591a JSON \u5904\u7406\u5668\u8981\u6c42\u65f6\u95f4\u6233\u4e3a ISO 8601 \u683c\u5f0f\u3002\u5982\u6709\u9700\u8981\uff0c\u53ef\u4ee5\u5728\u628a\u65e5\u671f\u65f6\u95f4\u503c\u4f20\u7ed9 JSON \u8f6c\u6362\u51fd\u6570\u4e4b\u524d\u663e\u5f0f\u8f6c\u6362\u4e3atext\u6765\u83b7\u5f97\u4ee5\u524d\u7684\u884c\u4e3a\u3002", "title": "\u5728\u5c06date\u3001timestamp\u6216timestamptz\u7c7b\u578b\u7684\u503c\u8f6c\u6362\u4e3aJSON\u65f6\uff0c\u6309\u7b26\u5408 ISO 8601 \u7684\u683c\u5f0f\u5448\u73b0\u8fd9\u4e9b\u503c", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "8c29904c978dbd9f2f0a80c905eec0fda25597911514d709a4242d0ca31b03f6", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "When converting values of type date, timestamp or timestamptz to JSON, render the values in a format compliant with ISO 8601 (Andrew Dunstan) Previously such values were rendered according to the current guc-datestyle setting; but many JSON processors require timestamps to be in ISO 8601 format. If necessary, the previous behavior can be obtained by explicitly casting the datetime value to text before passing it to the JSON conversion function.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/002", "db_id": "83a0e27304ddf64b13db7541664d195b", "patch_ids": [], "statement_hash": "961368c175c8f44583211dbf8c0734eebb10bbb115d288db1c3876cc058d7dc4", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-011e24aa31ef8425", "migration": true}, {"id": "9.4.0-895829ecf3121d53", "cves": [], "html": "

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\n

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", "text": "json#>text[]\u8def\u5f84\u63d0\u53d6\u64cd\u4f5c\u7b26\u73b0\u5728\u5728\u6570\u7ec4\u4e3a\u7a7a\u65f6\u8fd4\u56de\u5176\u5de6\u64cd\u4f5c\u6570\u8f93\u5165\u800c\u975e NULL\uff08Tom Lane\uff09 \u8fd9\u4e0e\u8be5\u64cd\u4f5c\u8868\u793a\u5bf9\u7b80\u5355\u5b57\u6bb5/\u5143\u7d20\u63d0\u53d6\u64cd\u4f5c\u7b26->\u5e94\u7528\u96f6\u6b21\u7684\u6982\u5ff5\u4e00\u81f4\u3002\u7c7b\u4f3c\u5730\uff0c\u5e26\u7a7a\u6570\u7ec4\u7684json#>>text[]\u53ea\u662f\u628a\u5176\u5de6\u64cd\u4f5c\u6570\u8f93\u5165\u5f3a\u5236\u8f6c\u6362\u4e3a\u6587\u672c\u3002", "title": "json#>text[]\u8def\u5f84\u63d0\u53d6\u64cd\u4f5c\u7b26\u73b0\u5728\u5728\u6570\u7ec4\u4e3a\u7a7a\u65f6\u8fd4\u56de\u5176\u5de6\u64cd\u4f5c\u6570\u8f93\u5165\u800c\u975e NULL", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "e020e93d19ee194dd750ab2e91776d02b4c8a3a51c20788588291a4f7a2cb4ef", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "The json #> text[] path extraction operator now returns its lefthand input, not NULL, if the array is empty (Tom Lane) This is consistent with the notion that this represents zero applications of the simple field/element extraction operator ->. Similarly, json #>> text[] with an empty array merely coerces its lefthand input to text.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/003", "db_id": "d19a9e07bbb6c7f27251cdcec5ad0e8c", "patch_ids": [], "statement_hash": "89c7f41ac942d3a1f303f25813dc538bb9df8775b503a887c2b8df1d1dc6d0d6", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-895829ecf3121d53", "migration": true}, {"id": "9.4.0-73a24096294496ee", "cves": [], "html": "

JSON\u5b57\u6bb5/\u5143\u7d20/\u8def\u5f84\u63d0\u53d6\u64cd\u4f5c\u7b26\u7684\u6781\u7aef\u60c5\u51b5\u73b0\u5728\u8fd4\u56de NULL \u800c\u4e0d\u662f\u629b\u51fa\u9519\u8bef\uff08Tom Lane\uff09

\n

\u4f8b\u5982\uff0c\u5bf9 JSON \u6570\u7ec4\u5e94\u7528\u5b57\u6bb5\u63d0\u53d6\u73b0\u5728\u5f97\u5230 NULL \u800c\u4e0d\u662f\u9519\u8bef\u3002\u8fd9\u66f4\u4e00\u81f4\uff08\u56e0\u4e3a\u8bf8\u5982\u5b57\u6bb5\u4e0d\u5b58\u5728\u7b49\u53ef\u6bd4\u60c5\u51b5\u6b64\u524d\u5c31\u5df2\u8fd4\u56de NULL\uff09\uff0c\u800c\u4e14\u4f7f\u521b\u5efa\u4f7f\u7528\u8fd9\u4e9b\u64cd\u4f5c\u7b26\u7684\u8868\u8fbe\u5f0f\u7d22\u5f15\u53d8\u5f97\u5b89\u5168\uff0c\u56e0\u4e3a\u5b83\u4eec\u73b0\u5728\u4e0d\u4f1a\u5bf9\u4efb\u4f55\u6709\u6548\u7684 JSON \u8f93\u5165\u629b\u51fa\u9519\u8bef\u3002

", "text": "JSON\u5b57\u6bb5/\u5143\u7d20/\u8def\u5f84\u63d0\u53d6\u64cd\u4f5c\u7b26\u7684\u6781\u7aef\u60c5\u51b5\u73b0\u5728\u8fd4\u56de NULL \u800c\u4e0d\u662f\u629b\u51fa\u9519\u8bef\uff08Tom Lane\uff09 \u4f8b\u5982\uff0c\u5bf9 JSON \u6570\u7ec4\u5e94\u7528\u5b57\u6bb5\u63d0\u53d6\u73b0\u5728\u5f97\u5230 NULL \u800c\u4e0d\u662f\u9519\u8bef\u3002\u8fd9\u66f4\u4e00\u81f4\uff08\u56e0\u4e3a\u8bf8\u5982\u5b57\u6bb5\u4e0d\u5b58\u5728\u7b49\u53ef\u6bd4\u60c5\u51b5\u6b64\u524d\u5c31\u5df2\u8fd4\u56de NULL\uff09\uff0c\u800c\u4e14\u4f7f\u521b\u5efa\u4f7f\u7528\u8fd9\u4e9b\u64cd\u4f5c\u7b26\u7684\u8868\u8fbe\u5f0f\u7d22\u5f15\u53d8\u5f97\u5b89\u5168\uff0c\u56e0\u4e3a\u5b83\u4eec\u73b0\u5728\u4e0d\u4f1a\u5bf9\u4efb\u4f55\u6709\u6548\u7684 JSON \u8f93\u5165\u629b\u51fa\u9519\u8bef\u3002", "title": "JSON\u5b57\u6bb5/\u5143\u7d20/\u8def\u5f84\u63d0\u53d6\u64cd\u4f5c\u7b26\u7684\u6781\u7aef\u60c5\u51b5\u73b0\u5728\u8fd4\u56de NULL \u800c\u4e0d\u662f\u629b\u51fa\u9519\u8bef", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "035e324bfb1627108bf3610418d1177e965416a36c2c6f351e1f10fae442bac7", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "Corner cases in the JSON field/element/path extraction operators now return NULL rather than raising an error (Tom Lane) For example, applying field extraction to a JSON array now yields NULL not an error. This is more consistent (since some comparable cases such as no-such-field already returned NULL), and it makes it safe to create expression indexes that use these operators, since they will now not throw errors for any valid JSON input.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/004", "db_id": "f84a57ba6c40990ff398ddc9e7f831f9", "patch_ids": [], "statement_hash": "0e69d26c1a4417a7f5f97bda5e5056bfe3558658fc32c2abbcd61f5ab36e5f66", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-73a24096294496ee", "migration": true}, {"id": "9.4.0-4d17fdbcbee28c72", "cves": [], "html": "

\u4f7fto_timestamp()\u548cto_date()\u683c\u5f0f\u4e32\u4e2d\u8fde\u7eed\u7684\u7a7a\u767d\u5b57\u7b26\u6d88\u8d39\u8f93\u5165\u4e32\u4e2d\u76f8\u5e94\u6570\u91cf\u7684\u5b57\u7b26\uff08\u65e0\u8bba\u662f\u5426\u7a7a\u767d\uff09\uff0c\u7136\u540e\u5728\u975eFX\u6a21\u5f0f\u4e0b\u89c6\u60c5\u51b5\u6d88\u8d39\u76f8\u90bb\u7a7a\u767d\uff08Jeevan Chalke\uff09

\n

\u6b64\u524d\uff0c\u975eFX\u683c\u5f0f\u4e32\u4e2d\u7684\u8fde\u7eed\u7a7a\u767d\u5b57\u7b26\u8868\u73b0\u5f97\u50cf\u5355\u4e2a\u7a7a\u767d\u5b57\u7b26\uff0c\u5e76\u6d88\u8d39\u8f93\u5165\u4e32\u4e2d\u6240\u6709\u76f8\u90bb\u7a7a\u767d\u3002\u4f8b\u5982\uff0c\u6b64\u524d\u4e09\u4e2a\u7a7a\u683c\u7684\u683c\u5f0f\u4e32\u5728' 12'\u4e2d\u53ea\u4f1a\u6d88\u8d39\u7b2c\u4e00\u4e2a\u7a7a\u683c\uff0c\u4f46\u73b0\u5728\u4f1a\u6d88\u8d39\u5168\u90e8\u4e09\u4e2a\u5b57\u7b26\u3002

", "text": "\u4f7fto_timestamp()\u548cto_date()\u683c\u5f0f\u4e32\u4e2d\u8fde\u7eed\u7684\u7a7a\u767d\u5b57\u7b26\u6d88\u8d39\u8f93\u5165\u4e32\u4e2d\u76f8\u5e94\u6570\u91cf\u7684\u5b57\u7b26\uff08\u65e0\u8bba\u662f\u5426\u7a7a\u767d\uff09\uff0c\u7136\u540e\u5728\u975eFX\u6a21\u5f0f\u4e0b\u89c6\u60c5\u51b5\u6d88\u8d39\u76f8\u90bb\u7a7a\u767d\uff08Jeevan Chalke\uff09 \u6b64\u524d\uff0c\u975eFX\u683c\u5f0f\u4e32\u4e2d\u7684\u8fde\u7eed\u7a7a\u767d\u5b57\u7b26\u8868\u73b0\u5f97\u50cf\u5355\u4e2a\u7a7a\u767d\u5b57\u7b26\uff0c\u5e76\u6d88\u8d39\u8f93\u5165\u4e32\u4e2d\u6240\u6709\u76f8\u90bb\u7a7a\u767d\u3002\u4f8b\u5982\uff0c\u6b64\u524d\u4e09\u4e2a\u7a7a\u683c\u7684\u683c\u5f0f\u4e32\u5728' 12'\u4e2d\u53ea\u4f1a\u6d88\u8d39\u7b2c\u4e00\u4e2a\u7a7a\u683c\uff0c\u4f46\u73b0\u5728\u4f1a\u6d88\u8d39\u5168\u90e8\u4e09\u4e2a\u5b57\u7b26\u3002", "title": "\u4f7fto_timestamp()\u548cto_date()\u683c\u5f0f\u4e32\u4e2d\u8fde\u7eed\u7684\u7a7a\u767d\u5b57\u7b26\u6d88\u8d39\u8f93\u5165\u4e32\u4e2d\u76f8\u5e94\u6570\u91cf\u7684\u5b57\u7b26\uff08\u65e0\u8bba\u662f\u5426\u7a7a\u767d\uff09\uff0c\u7136\u540e\u5728\u975eFX\u6a21\u5f0f\u4e0b\u89c6\u60c5\u51b5\u6d88\u8d39\u76f8\u90bb\u7a7a\u767d", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "e8a6886b775bfda296fa3be0e174f045a23cca64828acb92f202ac7d0fb38c7f", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "Cause consecutive whitespace in to_timestamp() and to_date() format strings to consume a corresponding number of characters in the input string (whitespace or not), then conditionally consume adjacent whitespace, if not in FX mode (Jeevan Chalke) Previously, consecutive whitespace characters in a non-FX format string behaved like a single whitespace character and consumed all adjacent whitespace in the input string. For example, previously a format string of three spaces would consume only the first space in ' 12', but it will now consume all three characters.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/005", "db_id": "b7fc09c0fc7f34184cb8710bb70b3602", "patch_ids": [], "statement_hash": "bb7a04b5a5ae8f9b77ed6b16f7af5df1b71c5f17ec693917bb3af11b483d11f9", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-4d17fdbcbee28c72", "migration": true}, {"id": "9.4.0-1ee5735c19d09fe6", "cves": [], "html": "

\u4fee\u590dts_rank_cd()\u4f7f\u5176\u5ffd\u7565\u5df2\u53bb\u9664\u4f4d\u7f6e\u4fe1\u606f\u7684\u8bcd\u4f4d\uff08Alex Hill\uff09

\n

\u6b64\u524d\uff0c\u5df2\u53bb\u9664\u4f4d\u7f6e\u4fe1\u606f\u7684\u8bcd\u4f4d\u88ab\u5f53\u4f5c\u5177\u6709\u9ed8\u8ba4\u4f4d\u7f6e\u5904\u7406\uff0c\u4ea7\u751f\u7528\u5904\u53ef\u7591\u7684\u6392\u540d\u3002

", "text": "\u4fee\u590dts_rank_cd()\u4f7f\u5176\u5ffd\u7565\u5df2\u53bb\u9664\u4f4d\u7f6e\u4fe1\u606f\u7684\u8bcd\u4f4d\uff08Alex Hill\uff09 \u6b64\u524d\uff0c\u5df2\u53bb\u9664\u4f4d\u7f6e\u4fe1\u606f\u7684\u8bcd\u4f4d\u88ab\u5f53\u4f5c\u5177\u6709\u9ed8\u8ba4\u4f4d\u7f6e\u5904\u7406\uff0c\u4ea7\u751f\u7528\u5904\u53ef\u7591\u7684\u6392\u540d\u3002", "title": "\u4fee\u590dts_rank_cd()\u4f7f\u5176\u5ffd\u7565\u5df2\u53bb\u9664\u4f4d\u7f6e\u4fe1\u606f\u7684\u8bcd\u4f4d", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "5d9fc639c50022b39c74b4a11b90c53de38f26d19904207830cfac5ef81a716b", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "Fix ts_rank_cd() to ignore stripped lexemes (Alex Hill) Previously, stripped lexemes were treated as if they had a default location, producing a rank of dubious usefulness.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/006", "db_id": "a89bc1d88493323b5b71f7a5fbd6f305", "patch_ids": [], "statement_hash": "355356bbc0ee85a6577759812b944c194e5c9a047a58a54a7bf97a799ef45c13", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-1ee5735c19d09fe6", "migration": true}, {"id": "9.4.0-2004ec7e3d85b01c", "cves": [], "html": "

\u5bf9\u4e8e\u58f0\u660e\u4e3a\u63a5\u53d7VARIADIC \"any\"\u7684\u51fd\u6570\uff0c\u6807\u8bb0\u4e3aVARIADIC\u7684\u5b9e\u9645\u53c2\u6570\u5fc5\u987b\u662f\u53ef\u786e\u5b9a\u6570\u7ec4\u7c7b\u578b\uff08Pavel Stehule\uff09

\n

\u6b64\u7c7b\u53c2\u6570\u4e0d\u80fd\u518d\u5199\u6210\u4e0d\u5e26\u4fee\u9970\u7684\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u6216NULL\uff1b\u73b0\u5728\u9700\u8981\u8f6c\u6362\u4e3a\u9002\u5f53\u7684\u6570\u7ec4\u6570\u636e\u7c7b\u578b\u3002\u6ce8\u610f\u8fd9\u4e0d\u5f71\u54cd\u672a\u6807\u8bb0VARIADIC\u7684\u53c2\u6570\u3002

", "text": "\u5bf9\u4e8e\u58f0\u660e\u4e3a\u63a5\u53d7VARIADIC \"any\"\u7684\u51fd\u6570\uff0c\u6807\u8bb0\u4e3aVARIADIC\u7684\u5b9e\u9645\u53c2\u6570\u5fc5\u987b\u662f\u53ef\u786e\u5b9a\u6570\u7ec4\u7c7b\u578b\uff08Pavel Stehule\uff09 \u6b64\u7c7b\u53c2\u6570\u4e0d\u80fd\u518d\u5199\u6210\u4e0d\u5e26\u4fee\u9970\u7684\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u6216NULL\uff1b\u73b0\u5728\u9700\u8981\u8f6c\u6362\u4e3a\u9002\u5f53\u7684\u6570\u7ec4\u6570\u636e\u7c7b\u578b\u3002\u6ce8\u610f\u8fd9\u4e0d\u5f71\u54cd\u672a\u6807\u8bb0VARIADIC\u7684\u53c2\u6570\u3002", "title": "\u5bf9\u4e8e\u58f0\u660e\u4e3a\u63a5\u53d7VARIADIC \"any\"\u7684\u51fd\u6570\uff0c\u6807\u8bb0\u4e3aVARIADIC\u7684\u5b9e\u9645\u53c2\u6570\u5fc5\u987b\u662f\u53ef\u786e\u5b9a\u6570\u7ec4\u7c7b\u578b", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "daf4e376b4bef2992ac9078eef7d184082db3f224ba34cde869af4d5693676c3", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "For functions declared to take VARIADIC \"any\", an actual parameter marked as VARIADIC must be of a determinable array type (Pavel Stehule) Such parameters can no longer be written as an undecorated string literal or NULL; a cast to an appropriate array data type will now be required. Note that this does not affect parameters not marked VARIADIC.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/007", "db_id": "9decfa50be75922933d62717781ea49a", "patch_ids": [], "statement_hash": "6df0b7ef03d4c87362d79f470a2b5dba98a8ba3fed54674699c15033bcc83722", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-2004ec7e3d85b01c", "migration": true}, {"id": "9.4.0-1aa30827011bf0f9", "cves": [], "html": "

\u786e\u4fdd\u6574\u884c\u53d8\u91cf\u5411\u5173\u6ce8\u7ec4\u5408\u53c2\u6570\u5185\u5217\u540d\u7684\u51fd\u6570\u66b4\u9732\u9884\u671f\u7684\u5217\u540d\uff08Tom Lane\uff09

\n

\u73b0\u5728\uff0c\u50cfrow_to_json(tab.*)\u8fd9\u6837\u7684\u7ed3\u6784\u603b\u662f\u8f93\u51fa\u4e0e\u8c03\u7528\u5904\u8868tab\u53ef\u89c1\u7684\u5217\u522b\u540d\u5339\u914d\u7684\u5217\u540d\u3002\u5728\u4ee5\u524d\u7684\u53d1\u884c\u7248\u4e2d\uff0c\u8f93\u51fa\u7684\u5217\u540d\u6709\u65f6\u662f\u8868\u7684\u5b9e\u9645\u5217\u540d\uff0c\u800c\u4e0d\u7ba1\u67e5\u8be2\u4e2d\u6307\u6d3e\u4e86\u4ec0\u4e48\u522b\u540d\u3002

", "text": "\u786e\u4fdd\u6574\u884c\u53d8\u91cf\u5411\u5173\u6ce8\u7ec4\u5408\u53c2\u6570\u5185\u5217\u540d\u7684\u51fd\u6570\u66b4\u9732\u9884\u671f\u7684\u5217\u540d\uff08Tom Lane\uff09 \u73b0\u5728\uff0c\u50cfrow_to_json(tab.*)\u8fd9\u6837\u7684\u7ed3\u6784\u603b\u662f\u8f93\u51fa\u4e0e\u8c03\u7528\u5904\u8868tab\u53ef\u89c1\u7684\u5217\u522b\u540d\u5339\u914d\u7684\u5217\u540d\u3002\u5728\u4ee5\u524d\u7684\u53d1\u884c\u7248\u4e2d\uff0c\u8f93\u51fa\u7684\u5217\u540d\u6709\u65f6\u662f\u8868\u7684\u5b9e\u9645\u5217\u540d\uff0c\u800c\u4e0d\u7ba1\u67e5\u8be2\u4e2d\u6307\u6d3e\u4e86\u4ec0\u4e48\u522b\u540d\u3002", "title": "\u786e\u4fdd\u6574\u884c\u53d8\u91cf\u5411\u5173\u6ce8\u7ec4\u5408\u53c2\u6570\u5185\u5217\u540d\u7684\u51fd\u6570\u66b4\u9732\u9884\u671f\u7684\u5217\u540d", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "9d7b7d9fba8d898afd43302dae2bc1a706339aae46870cf1574e6863f3e75c9e", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "Ensure that whole-row variables expose the expected column names to functions that pay attention to column names within composite arguments (Tom Lane) Constructs like row_to_json(tab.*) now always emit column names that match the column aliases visible for table tab at the point of the call. In previous releases the emitted column names would sometimes be the table's actual column names regardless of any aliases assigned in the query.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/008", "db_id": "7b9174450ed524274da417d808bb21c0", "patch_ids": [], "statement_hash": "69c9d250a0f81be3948ccf7b41fdc1685aa1afe8604c64c48529de71a8151560", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-1aa30827011bf0f9", "migration": true}, {"id": "9.4.0-a3a52689b3eccdb2", "cves": [], "html": "

DISCARD\u73b0\u5728\u8fd8\u4f1a\u4e22\u5f03\u4e0e\u5e8f\u5217\u76f8\u5173\u7684\u72b6\u6001\uff08Fabr\u00edzio de Royes Mello\u3001Robert Haas\uff09

", "text": "DISCARD\u73b0\u5728\u8fd8\u4f1a\u4e22\u5f03\u4e0e\u5e8f\u5217\u76f8\u5173\u7684\u72b6\u6001\uff08Fabr\u00edzio de Royes Mello\u3001Robert Haas\uff09", "title": "DISCARD\u73b0\u5728\u8fd8\u4f1a\u4e22\u5f03\u4e0e\u5e8f\u5217\u76f8\u5173\u7684\u72b6\u6001", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "c17009c08f738967471c5d7dc24401d0f2366137453729f36f30380ee166a176", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "sql-discard now also discards sequence-related state (Fabr\u00edzio de Royes Mello, Robert Haas)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/009", "db_id": "40d413ef563b3376e65c860f75979049", "patch_ids": [], "statement_hash": "68063a9a438a7255dd772a103dc8b0ed864b87aa9d6cb978088a057631290e17", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-a3a52689b3eccdb2", "migration": true}, {"id": "9.4.0-4c372277a90e2896", "cves": [], "html": "

\u5c06EXPLAIN ANALYZE\u8f93\u51fa\u4e2d\u7684\u201ctotal runtime\u201d\u66f4\u540d\u4e3a\u201cexecution time\u201d\uff08Tom Lane\uff09

\n

\u65e2\u7136\u89c4\u5212\u65f6\u95f4\u4e5f\u4e00\u5e76\u62a5\u544a\uff0c\u4ee5\u524d\u7684\u540d\u79f0\u5bb9\u6613\u5f15\u8d77\u6df7\u6dc6\u3002

", "text": "\u5c06EXPLAIN ANALYZE\u8f93\u51fa\u4e2d\u7684\u201ctotal runtime\u201d\u66f4\u540d\u4e3a\u201cexecution time\u201d\uff08Tom Lane\uff09 \u65e2\u7136\u89c4\u5212\u65f6\u95f4\u4e5f\u4e00\u5e76\u62a5\u544a\uff0c\u4ee5\u524d\u7684\u540d\u79f0\u5bb9\u6613\u5f15\u8d77\u6df7\u6dc6\u3002", "title": "\u5c06EXPLAIN ANALYZE\u8f93\u51fa\u4e2d\u7684\u201ctotal runtime\u201d\u66f4\u540d\u4e3a\u201cexecution time\u201d", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "dc629837c8ee2b2ebe262dc47ffabe47e38f9f6f8899f737db6431027e589d8d", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "Rename EXPLAIN ANALYZE's total runtime output to execution time (Tom Lane) Now that planning time is also reported, the previous name was confusing.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/010", "db_id": "3d1751975e55ba1a65beffcd538b7ce4", "patch_ids": [], "statement_hash": "1f261d6bb48070c42a0bbaa63d26e668dac58ed58b30833b16281e81c3ba1b3e", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-4c372277a90e2896", "migration": true}, {"id": "9.4.0-625ccb9410adec1c", "cves": [], "html": "

SHOW TIME ZONE\u73b0\u5728\u4ee5POSIX\u65f6\u533a\u683c\u5f0f\u8f93\u51fa\u7b80\u5355\u7684\u6570\u5b57 UTC \u504f\u79fb\uff08Tom Lane\uff09

\n

\u6b64\u524d\uff0c\u6b64\u7c7b\u65f6\u533a\u8bbe\u7f6e\u663e\u793a\u4e3ainterval\u503c\u3002\u4f5c\u4e3a\u7b80\u5355\u5b57\u7b26\u4e32\u4f20\u9012\u65f6\uff0c\u65b0\u7684\u8f93\u51fa\u80fd\u88abSET TIME ZONE\u6b63\u786e\u89e3\u91ca\uff0c\u800c\u65e7\u8f93\u51fa\u9700\u8981\u7279\u6b8a\u5904\u7406\u624d\u80fd\u88ab\u6b63\u786e\u91cd\u65b0\u89e3\u6790\u3002

", "text": "SHOW TIME ZONE\u73b0\u5728\u4ee5POSIX\u65f6\u533a\u683c\u5f0f\u8f93\u51fa\u7b80\u5355\u7684\u6570\u5b57 UTC \u504f\u79fb\uff08Tom Lane\uff09 \u6b64\u524d\uff0c\u6b64\u7c7b\u65f6\u533a\u8bbe\u7f6e\u663e\u793a\u4e3ainterval\u503c\u3002\u4f5c\u4e3a\u7b80\u5355\u5b57\u7b26\u4e32\u4f20\u9012\u65f6\uff0c\u65b0\u7684\u8f93\u51fa\u80fd\u88abSET TIME ZONE\u6b63\u786e\u89e3\u91ca\uff0c\u800c\u65e7\u8f93\u51fa\u9700\u8981\u7279\u6b8a\u5904\u7406\u624d\u80fd\u88ab\u6b63\u786e\u91cd\u65b0\u89e3\u6790\u3002", "title": "SHOW TIME ZONE\u73b0\u5728\u4ee5POSIX\u65f6\u533a\u683c\u5f0f\u8f93\u51fa\u7b80\u5355\u7684\u6570\u5b57 UTC \u504f\u79fb", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "89d7d2870ab0e8f708b9278543c0262b711f063b9329d61c94ae892ce11a49f8", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "SHOW TIME ZONE now outputs simple numeric UTC offsets in POSIX timezone format (Tom Lane) Previously, such timezone settings were displayed as interval values. The new output is properly interpreted by SET TIME ZONE when passed as a simple string, whereas the old output required special treatment to be re-parsed correctly.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/011", "db_id": "6be7f212bef502a3f1be15cdb7d52d90", "patch_ids": [], "statement_hash": "5610076ada38eeca7f24dde8a9dd2866c9c339ddc4bb6cef2180f2ca87a42048", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-625ccb9410adec1c", "migration": true}, {"id": "9.4.0-e79a81d649da43dc", "cves": [], "html": "

\u652f\u6301\u66f4\u65b0\u5916\u90e8\u8868\u7684\u5916\u90e8\u6570\u636e\u5305\u88c5\u5668\u5fc5\u987b\u8003\u8651\u53ef\u80fd\u5b58\u5728\u7684AFTER ROW\u89e6\u53d1\u5668\uff08Noah Misch\uff09

\n

\u5f53\u5b58\u5728AFTER ROW\u89e6\u53d1\u5668\u65f6\uff0c\u66f4\u65b0\u64cd\u4f5c\u5fc5\u987b\u8fd4\u56de\u8868\u7684\u6240\u6709\u5217\uff0c\u56e0\u4e3a\u89e6\u53d1\u5668\u53ef\u80fd\u68c0\u67e5\u5176\u4e2d\u4efb\u610f\u6216\u5168\u90e8\u5217\u3002\u6b64\u524d\u5916\u90e8\u8868\u4ece\u4e0d\u5e26\u89e6\u53d1\u5668\uff0c\u56e0\u6b64 FDW \u53ef\u80fd\u4f18\u5316\u6389\u5bf9RETURNING\u5b50\u53e5\uff08\u82e5\u6709\uff09\u4e2d\u672a\u63d0\u53ca\u5217\u7684\u83b7\u53d6\u3002

", "text": "\u652f\u6301\u66f4\u65b0\u5916\u90e8\u8868\u7684\u5916\u90e8\u6570\u636e\u5305\u88c5\u5668\u5fc5\u987b\u8003\u8651\u53ef\u80fd\u5b58\u5728\u7684AFTER ROW\u89e6\u53d1\u5668\uff08Noah Misch\uff09 \u5f53\u5b58\u5728AFTER ROW\u89e6\u53d1\u5668\u65f6\uff0c\u66f4\u65b0\u64cd\u4f5c\u5fc5\u987b\u8fd4\u56de\u8868\u7684\u6240\u6709\u5217\uff0c\u56e0\u4e3a\u89e6\u53d1\u5668\u53ef\u80fd\u68c0\u67e5\u5176\u4e2d\u4efb\u610f\u6216\u5168\u90e8\u5217\u3002\u6b64\u524d\u5916\u90e8\u8868\u4ece\u4e0d\u5e26\u89e6\u53d1\u5668\uff0c\u56e0\u6b64 FDW \u53ef\u80fd\u4f18\u5316\u6389\u5bf9RETURNING\u5b50\u53e5\uff08\u82e5\u6709\uff09\u4e2d\u672a\u63d0\u53ca\u5217\u7684\u83b7\u53d6\u3002", "title": "\u652f\u6301\u66f4\u65b0\u5916\u90e8\u8868\u7684\u5916\u90e8\u6570\u636e\u5305\u88c5\u5668\u5fc5\u987b\u8003\u8651\u53ef\u80fd\u5b58\u5728\u7684AFTER ROW\u89e6\u53d1\u5668", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "5a7b370bdaa89e677922c7fbf2ef824f9fb3e501392b65559a6a269c0593246e", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "Foreign data wrappers that support updating foreign tables must consider the possible presence of AFTER ROW triggers (Noah Misch) When an AFTER ROW trigger is present, all columns of the table must be returned by updating actions, since the trigger might inspect any or all of them. Previously, foreign tables never had triggers, so the FDW might optimize away fetching columns not mentioned in the RETURNING clause (if any).", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/012", "db_id": "69f1d0363b8850dd292d048f67121e0f", "patch_ids": [], "statement_hash": "cb58a49fe84dfcfb6cc12c38baf94e9802bfd0cad091dadda2b944e84d7ff1fa", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-e79a81d649da43dc", "migration": true}, {"id": "9.4.0-2c1e9b730cdc35ed", "cves": [], "html": "

\u963b\u6b62CHECK\u7ea6\u675f\u5f15\u7528\u7cfb\u7edf\u5217\uff0ctableoid\u9664\u5916\uff08Amit Kapila\uff09

\n

\u6b64\u524d\u6b64\u7c7b\u68c0\u67e5\u7ea6\u675f\u662f\u88ab\u5141\u8bb8\u7684\uff0c\u4f46\u5b83\u4eec\u5e38\u5e38\u5728\u8fd8\u539f\u671f\u95f4\u5bfc\u81f4\u9519\u8bef\u3002

", "text": "\u963b\u6b62CHECK\u7ea6\u675f\u5f15\u7528\u7cfb\u7edf\u5217\uff0ctableoid\u9664\u5916\uff08Amit Kapila\uff09 \u6b64\u524d\u6b64\u7c7b\u68c0\u67e5\u7ea6\u675f\u662f\u88ab\u5141\u8bb8\u7684\uff0c\u4f46\u5b83\u4eec\u5e38\u5e38\u5728\u8fd8\u539f\u671f\u95f4\u5bfc\u81f4\u9519\u8bef\u3002", "title": "\u963b\u6b62CHECK\u7ea6\u675f\u5f15\u7528\u7cfb\u7edf\u5217\uff0ctableoid\u9664\u5916", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "29fed6f189a72c24e85ada0cc4cd0f16b403e923cdd0eaa0a2fa81e4b20c9e6b", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "Prevent CHECK constraints from referencing system columns, except tableoid (Amit Kapila) Previously such check constraints were allowed, but they would often cause errors during restores.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/013", "db_id": "a8d48fe017675fcfa19b7dd16491d900", "patch_ids": [], "statement_hash": "a8881da2f282c478313e6680a2f91fc6572ea1359c67abd1cf115cc5d8c5d513", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-2c1e9b730cdc35ed", "migration": true}, {"id": "9.4.0-db9fabd6dd88e212", "cves": [], "html": "

\u5728\u6307\u5b9a\u4e86\u591a\u4e2a\u76ee\u6807\u53c2\u6570\u65f6\uff0c\u4f7f\u7528\u6700\u540e\u6307\u5b9a\u7684\u6062\u590d\u76ee\u6807\u53c2\u6570\uff08Heikki Linnakangas\uff09

\n

\u6b64\u524d\uff0crecovery_target_xxx\u53c2\u6570\u4e4b\u95f4\u5b58\u5728\u672a\u5199\u5165\u6587\u6863\u7684\u4f18\u5148\u987a\u5e8f\u3002

", "text": "\u5728\u6307\u5b9a\u4e86\u591a\u4e2a\u76ee\u6807\u53c2\u6570\u65f6\uff0c\u4f7f\u7528\u6700\u540e\u6307\u5b9a\u7684\u6062\u590d\u76ee\u6807\u53c2\u6570\uff08Heikki Linnakangas\uff09 \u6b64\u524d\uff0crecovery_target_xxx\u53c2\u6570\u4e4b\u95f4\u5b58\u5728\u672a\u5199\u5165\u6587\u6863\u7684\u4f18\u5148\u987a\u5e8f\u3002", "title": "\u5728\u6307\u5b9a\u4e86\u591a\u4e2a\u76ee\u6807\u53c2\u6570\u65f6\uff0c\u4f7f\u7528\u6700\u540e\u6307\u5b9a\u7684\u6062\u590d\u76ee\u6807\u53c2\u6570", "commits": [], "section": "\u517c\u5bb9\u6027", "category": "compatibility", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.4", "source_hash": "be844843a12369fb1c2618b52df22f4ccccf1b88e3a7c76f3e675e1ca6f514ef", "section_path": ["\u517c\u5bb9\u6027"], "commit_groups": [], "identity_text": "Use the last specified recovery target parameter if multiple target parameters are specified (Heikki Linnakangas) Previously, there was an undocumented precedence order among the recovery_target_xxx parameters.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/migration/014", "db_id": "2e5d7aa302315bc05e8b897097175ced", "patch_ids": [], "statement_hash": "3b4972194cf290f6d7ee06bc11d1b13bef964e3d550d66214f635c240178c10b", "relations": [], "category_label": "\u517c\u5bb9\u6027\u53d8\u5316", "url": "/docs/compare/?release=9.4.0#9.4.0-db9fabd6dd88e212", "migration": true}, {"id": "9.4.0-cee7c1e9cd931833", "cves": [], "html": "

\u5728 Windows \u4e0a\u81ea\u52a8\u4fdd\u7559\u7528\u6237\u63d0\u4f9b\u7684\u547d\u4ee4\u4e32\u4e2d\u7684\u5f15\u53f7\uff08Heikki Linnakangas\uff09

\n

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\u9010\u5217\u89c4\u5219\u81eaPostgreSQL 7.3 \u8d77\u5c31\u4e0d\u518d\u652f\u6301\u3002

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\n

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\n

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\n

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\n

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\n

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\n

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", "text": "\u5141\u8bb8\u5728\u6307\u5b9a\u914d\u7f6e\u53d8\u91cf\u503c\u65f6\u4f7f\u7528\u592a\u5b57\u8282\u5355\u4f4d\uff08TB\uff09\uff08Simon Riggs\uff09", "title": "\u5141\u8bb8\u5728\u6307\u5b9a\u914d\u7f6e\u53d8\u91cf\u503c\u65f6\u4f7f\u7528\u592a\u5b57\u8282\u5355\u4f4d\uff08TB\uff09", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.3.7", "source_hash": "f3a286bcaf57e15b8a6a21c3b8d14ea08f164293c7ba79794abdd15d3ef06831", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Allow terabyte units (TB) to be used when specifying configuration variable values (Simon Riggs)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/040", "db_id": "76a82a6541066d97439e2615b1456de6", "patch_ids": [], "statement_hash": "ec4b943e658b82e46ff21639ae1ccd6409a40b28885b24502bf037d58ec139bc", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-a63fa1d2c467e504", "migration": false}, {"id": "9.4.0-a4c8b91934a13d20", "cves": [], "html": "

\u5728log_lock_waits\u65e5\u5fd7\u6d88\u606f\u4e2d\u663e\u793a\u9501\u6301\u6709\u8005\u548c\u7b49\u5f85\u8005\u7684 PID\uff0c\u5e76\u6539\u8fdb\u5173\u7cfb\u76f8\u5173\u4fe1\u606f\uff08Christian Kruse\uff09

", "text": "\u5728log_lock_waits\u65e5\u5fd7\u6d88\u606f\u4e2d\u663e\u793a\u9501\u6301\u6709\u8005\u548c\u7b49\u5f85\u8005\u7684 PID\uff0c\u5e76\u6539\u8fdb\u5173\u7cfb\u76f8\u5173\u4fe1\u606f\uff08Christian Kruse\uff09", "title": "\u5728log_lock_waits\u65e5\u5fd7\u6d88\u606f\u4e2d\u663e\u793a\u9501\u6301\u6709\u8005\u548c\u7b49\u5f85\u8005\u7684 PID\uff0c\u5e76\u6539\u8fdb\u5173\u7cfb\u76f8\u5173\u4fe1\u606f", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.3.7", "source_hash": "78ae9969945bf6563a94e44cd151410e4fd3d572802bf991b1182bae8262a37a", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Show PIDs of lock holders and waiters and improve information about relations in guc-log-lock-waits log messages (Christian Kruse)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/041", "db_id": "1a1afa3a58b1623be5778ec951983a90", "patch_ids": [], "statement_hash": "a023242a7e12f3b7d58973c9fb21618a04a3738ad386f70d372c0c52e2c0598b", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-a4c8b91934a13d20", "migration": false}, {"id": "9.4.0-0d768b4956f1f9cc", "cves": [], "html": "

\u964d\u4f4e\u52a0\u8f7d\u5171\u4eab\u5e93\u65f6\u7684\u670d\u52a1\u5668\u65e5\u5fd7\u7ea7\u522b\uff08Peter Geoghegan\uff09

\n

\u4ee5\u524d\u7684\u7ea7\u522b\u662f LOG\uff0c\u5bf9\u4e8e\u6309\u4f1a\u8bdd\u52a0\u8f7d\u7684\u5e93\u6765\u8bf4\u8fc7\u4e8e\u5197\u957f\u3002

", "text": "\u964d\u4f4e\u52a0\u8f7d\u5171\u4eab\u5e93\u65f6\u7684\u670d\u52a1\u5668\u65e5\u5fd7\u7ea7\u522b\uff08Peter Geoghegan\uff09 \u4ee5\u524d\u7684\u7ea7\u522b\u662f LOG\uff0c\u5bf9\u4e8e\u6309\u4f1a\u8bdd\u52a0\u8f7d\u7684\u5e93\u6765\u8bf4\u8fc7\u4e8e\u5197\u957f\u3002", "title": "\u964d\u4f4e\u52a0\u8f7d\u5171\u4eab\u5e93\u65f6\u7684\u670d\u52a1\u5668\u65e5\u5fd7\u7ea7\u522b", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.3.7", "source_hash": "2532d0989d43abeb95587d7333e01ccb8f09dacbad13b7c6c0bbec0fea934e70", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "Reduce server logging level when loading shared libraries (Peter Geoghegan) The previous level was LOG, which was too verbose for libraries loaded per-session.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/042", "db_id": "88e4eac3e2c3d60074dcc0668e17cf9d", "patch_ids": [], "statement_hash": "c55cc9966f4b2e4e5730a7a42e0cd4a2c2c8ad40de3b4f987496d3d838dcb5e6", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-0d768b4956f1f9cc", "migration": false}, {"id": "9.4.0-639542ff6ecc7bc0", "cves": [], "html": "

\u5728 Windows \u4e0a\uff0c\u4f7f SQL_ASCII \u7f16\u7801\u7684\u6570\u636e\u5e93\u548c\u670d\u52a1\u5668\u8fdb\u7a0b\uff08\u4f8b\u5982postmaster\uff09\u4ee5\u670d\u52a1\u5668 Windows \u7528\u6237\u533a\u57df\u8bbe\u7f6e\u7684\u5b57\u7b26\u7f16\u7801\u53d1\u51fa\u6d88\u606f\uff08Alexander Law\u3001Noah Misch\uff09

\n

\u6b64\u524d\u8fd9\u4e9b\u6d88\u606f\u4ee5 Windows ANSI \u4ee3\u7801\u9875\u8f93\u51fa\u3002

", "text": "\u5728 Windows \u4e0a\uff0c\u4f7f SQL_ASCII \u7f16\u7801\u7684\u6570\u636e\u5e93\u548c\u670d\u52a1\u5668\u8fdb\u7a0b\uff08\u4f8b\u5982postmaster\uff09\u4ee5\u670d\u52a1\u5668 Windows \u7528\u6237\u533a\u57df\u8bbe\u7f6e\u7684\u5b57\u7b26\u7f16\u7801\u53d1\u51fa\u6d88\u606f\uff08Alexander Law\u3001Noah Misch\uff09 \u6b64\u524d\u8fd9\u4e9b\u6d88\u606f\u4ee5 Windows ANSI \u4ee3\u7801\u9875\u8f93\u51fa\u3002", "title": "\u5728 Windows \u4e0a\uff0c\u4f7f SQL_ASCII \u7f16\u7801\u7684\u6570\u636e\u5e93\u548c\u670d\u52a1\u5668\u8fdb\u7a0b\uff08\u4f8b\u5982postmaster\uff09\u4ee5\u670d\u52a1\u5668 Windows \u7528\u6237\u533a\u57df\u8bbe\u7f6e\u7684\u5b57\u7b26\u7f16\u7801\u53d1\u51fa\u6d88\u606f", "commits": [], "section": "\u670d\u52a1\u5668 / \u670d\u52a1\u5668\u8bbe\u7f6e", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.3.7", "source_hash": "c74d2448dcd521892519edfaa06d4f412fa797cd62b645fc058b43ed36c892c1", "section_path": ["\u670d\u52a1\u5668", "\u670d\u52a1\u5668\u8bbe\u7f6e"], "commit_groups": [], "identity_text": "On Windows, make SQL_ASCII-encoded databases and server processes (e.g., app-postmaster ) emit messages in the character encoding of the server's Windows user locale (Alexander Law, Noah Misch) Previously these messages were output in the Windows ANSI code page.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/043", "db_id": "5a48543315c59cf240156344449afafa", "patch_ids": [], "statement_hash": "c5fdaac50a4554b0943ca36e2f4a8fb5b462c8e4d5b9bfe8625aab7738584ea9", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-639542ff6ecc7bc0", "migration": false}, {"id": "9.4.0-4cc01a59391e634e", "cves": [], "html": "

\u65b0\u589e\u590d\u5236\u69fd\uff0c\u4ee5\u534f\u8c03\u6d41\u590d\u5236\u5907\u5e93\u4e0e\u5176\u6d41\u6765\u6e90\u8282\u70b9\u7684\u6d3b\u52a8\uff08Andres Freund\u3001Robert Haas\uff09

\n

\u590d\u5236\u69fd\u5141\u8bb8\u5728\u4e3b\u5e93\u4e0a\u4fdd\u7559 WAL \u6587\u4ef6\u7b49\u8d44\u6e90\uff0c\u76f4\u5230\u5907\u5e93\u670d\u52a1\u5668\u4e0d\u518d\u9700\u8981\u5b83\u4eec\u3002

", "text": "\u65b0\u589e\u590d\u5236\u69fd\uff0c\u4ee5\u534f\u8c03\u6d41\u590d\u5236\u5907\u5e93\u4e0e\u5176\u6d41\u6765\u6e90\u8282\u70b9\u7684\u6d3b\u52a8\uff08Andres Freund\u3001Robert Haas\uff09 \u590d\u5236\u69fd\u5141\u8bb8\u5728\u4e3b\u5e93\u4e0a\u4fdd\u7559 WAL \u6587\u4ef6\u7b49\u8d44\u6e90\uff0c\u76f4\u5230\u5907\u5e93\u670d\u52a1\u5668\u4e0d\u518d\u9700\u8981\u5b83\u4eec\u3002", "title": "\u65b0\u589e\u590d\u5236\u69fd\uff0c\u4ee5\u534f\u8c03\u6d41\u590d\u5236\u5907\u5e93\u4e0e\u5176\u6d41\u6765\u6e90\u8282\u70b9\u7684\u6d3b\u52a8", "commits": [], "section": "\u590d\u5236\u4e0e\u6062\u590d", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.4", "source_hash": "ea00084c07865b1b487d6ff52c88ea265b39010caaf10780936a69722be7ef31", "section_path": ["\u590d\u5236\u4e0e\u6062\u590d"], "commit_groups": [], "identity_text": "Add replication slots to coordinate activity on streaming standbys with the node they are streaming from (Andres Freund, Robert Haas) Replication slots allow preservation of resources like WAL files on the primary until they are no longer needed by standby servers.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/044", "db_id": "b5339fd59177468c25a87bd09b9a6ed5", "patch_ids": [], "statement_hash": "3e8414575e68244ed55722bedf4833dd8538b9ccecb50956ed187f4bd63074e7", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-4cc01a59391e634e", "migration": false}, {"id": "9.4.0-b710b15be81ba1ec", "cves": [], "html": "

\u65b0\u589e\u6062\u590d\u53c2\u6570recovery_min_apply_delay\u4ee5\u5ef6\u8fdf\u590d\u5236\uff08Robert Haas, Fabr\u00edzio de Royes Mello\u3001Simon Riggs\uff09

\n

\u5ef6\u8fdf\u5907\u5e93\u670d\u52a1\u5668\u4e0a\u7684\u91cd\u653e\u5bf9\u4e8e\u4ece\u7528\u6237\u9519\u8bef\u4e2d\u6062\u590d\u53ef\u80fd\u5f88\u6709\u7528\u3002

", "text": "\u65b0\u589e\u6062\u590d\u53c2\u6570recovery_min_apply_delay\u4ee5\u5ef6\u8fdf\u590d\u5236\uff08Robert Haas, Fabr\u00edzio de Royes Mello\u3001Simon Riggs\uff09 \u5ef6\u8fdf\u5907\u5e93\u670d\u52a1\u5668\u4e0a\u7684\u91cd\u653e\u5bf9\u4e8e\u4ece\u7528\u6237\u9519\u8bef\u4e2d\u6062\u590d\u53ef\u80fd\u5f88\u6709\u7528\u3002", "title": "\u65b0\u589e\u6062\u590d\u53c2\u6570recovery_min_apply_delay\u4ee5\u5ef6\u8fdf\u590d\u5236", "commits": [], "section": "\u590d\u5236\u4e0e\u6062\u590d", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.4", "source_hash": "7413dace8ca5108ec33820097ae79ce76aeec58142e74342778f81be341061df", "section_path": ["\u590d\u5236\u4e0e\u6062\u590d"], "commit_groups": [], "identity_text": "Add recovery parameter recovery-min-apply-delay to delay replication (Robert Haas, Fabr\u00edzio de Royes Mello, Simon Riggs) Delaying replay on standby servers can be useful for recovering from user errors.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/045", "db_id": "18c6c73e4b2a436c5cff78cce907e807", "patch_ids": [], "statement_hash": "53141d1ddcac011217542954de2cc34493f9e42cb82bf698ed7c68b036327379", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-b710b15be81ba1ec", "migration": false}, {"id": "9.4.0-944163048dc617f7", "cves": [], "html": "

\u65b0\u589erecovery_target\u9009\u9879 immediate\uff0c\u5728\u8fbe\u5230\u4e00\u81f4\u72b6\u6001\u540e\u7acb\u5373\u505c\u6b62 WAL \u6062\u590d\uff08MauMau\u3001Heikki Linnakangas\uff09

", "text": "\u65b0\u589erecovery_target\u9009\u9879 immediate\uff0c\u5728\u8fbe\u5230\u4e00\u81f4\u72b6\u6001\u540e\u7acb\u5373\u505c\u6b62 WAL \u6062\u590d\uff08MauMau\u3001Heikki Linnakangas\uff09", "title": "\u65b0\u589erecovery_target\u9009\u9879 immediate\uff0c\u5728\u8fbe\u5230\u4e00\u81f4\u72b6\u6001\u540e\u7acb\u5373\u505c\u6b62 WAL \u6062\u590d", "commits": [], "section": "\u590d\u5236\u4e0e\u6062\u590d", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.4", "source_hash": "61f84facd316eaad6d31fa1f7c2d7a564f75a816a5c3da9fda869686dcab07ec", "section_path": ["\u590d\u5236\u4e0e\u6062\u590d"], "commit_groups": [], "identity_text": "Add recovery-target option immediate to stop WAL recovery as soon as a consistent state is reached (MauMau, Heikki Linnakangas)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/046", "db_id": "1468649948f2d48adadc454691568704", "patch_ids": [], "statement_hash": "c879a4f0f5cf76655046e262da00b86c65fa2418e53f51b7ba76f7245e40a8df", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-944163048dc617f7", "migration": false}, {"id": "9.4.0-df085c7700237e40", "cves": [], "html": "

\u6539\u8fdb\u6062\u590d\u76ee\u6807\u7684\u5904\u7406\uff08Heikki Linnakangas\uff09

\n

pg_last_xact_replay_timestamp() \u62a5\u544a\u7684\u65f6\u95f4\u6233\u73b0\u5728\u53cd\u6620\u5df2\u63d0\u4ea4\u7684\u8bb0\u5f55\uff0c\u800c\u4e0d\u662f\u5c06\u8981\u63d0\u4ea4\u7684\u4e8b\u52a1\u3002\u6062\u590d\u5230\u8fd8\u539f\u70b9\u73b0\u5728\u4f1a\u91cd\u653e\u5230\u8fd8\u539f\u70b9\u672c\u8eab\uff0c\u800c\u4e0d\u662f\u5728\u8fd8\u539f\u70b9\u4e4b\u524d\u505c\u6b62\u3002

", "text": "\u6539\u8fdb\u6062\u590d\u76ee\u6807\u7684\u5904\u7406\uff08Heikki Linnakangas\uff09 pg_last_xact_replay_timestamp() \u62a5\u544a\u7684\u65f6\u95f4\u6233\u73b0\u5728\u53cd\u6620\u5df2\u63d0\u4ea4\u7684\u8bb0\u5f55\uff0c\u800c\u4e0d\u662f\u5c06\u8981\u63d0\u4ea4\u7684\u4e8b\u52a1\u3002\u6062\u590d\u5230\u8fd8\u539f\u70b9\u73b0\u5728\u4f1a\u91cd\u653e\u5230\u8fd8\u539f\u70b9\u672c\u8eab\uff0c\u800c\u4e0d\u662f\u5728\u8fd8\u539f\u70b9\u4e4b\u524d\u505c\u6b62\u3002", "title": "\u6539\u8fdb\u6062\u590d\u76ee\u6807\u7684\u5904\u7406", "commits": [], "section": "\u590d\u5236\u4e0e\u6062\u590d", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.4", "source_hash": "0e79a45d52db0b62d2494d1187e0bf0cb951de935818962f15f531eed2518e19", "section_path": ["\u590d\u5236\u4e0e\u6062\u590d"], "commit_groups": [], "identity_text": "Improve recovery target processing (Heikki Linnakangas) The timestamp reported by pg_last_xact_replay_timestamp() now reflects already-committed records, not transactions about to be committed. Recovering to a restore point now replays the restore point, rather than stopping just before the restore point.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/047", "db_id": "ae3eb09230b5ba0507ec3dc05edeb981", "patch_ids": [], "statement_hash": "bbc35acf23fe3b5e76a93d2843221b2f5da697cecc630b09396ddecdf5931d74", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-df085c7700237e40", "migration": false}, {"id": "9.4.0-62177b11ae80f099", "cves": [], "html": "

pg_switch_xlog() \u73b0\u5728\u4f1a\u6e05\u9664\u65e7 WAL \u6587\u4ef6\u4e2d\u6240\u6709\u672a\u4f7f\u7528\u7684\u5c3e\u90e8\u7a7a\u95f4\uff08Heikki Linnakangas\uff09

\n

\u8fd9\u63d0\u9ad8\u4e86 WAL \u6587\u4ef6\u7684\u538b\u7f29\u7387\u3002

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\n

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", "text": "\u65b0\u589etest_decoding\u6a21\u5757\uff0c\u7528\u4e8e\u5728 SQL \u5c42\u9762\u6f14\u793a\u903b\u8f91\u89e3\u7801\uff08Andres Freund\uff09", "title": "\u65b0\u589etest_decoding\u6a21\u5757\uff0c\u7528\u4e8e\u5728 SQL \u5c42\u9762\u6f14\u793a\u903b\u8f91\u89e3\u7801", "commits": [], "section": "\u590d\u5236\u4e0e\u6062\u590d / \u903b\u8f91\u89e3\u7801", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.4.3", "source_hash": "00c27ecc35fd81af1f0107e62b8e48dd6a1b1be8325582e0bc31dea295b4d11d", "section_path": ["\u590d\u5236\u4e0e\u6062\u590d", "\u903b\u8f91\u89e3\u7801"], "commit_groups": [], "identity_text": "Add test-decoding module to illustrate logical decoding at the SQL level (Andres Freund)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/057", "db_id": "ccdd7979d3f83115263641bb2003dd2d", "patch_ids": [], "statement_hash": "12462434ee868c6d087b3b03c9afe9c423c2948cebd68c1fff95a13f3cfdffe0", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-b69e9fd2d2a378e3", "migration": false}, {"id": "9.4.0-2960fdd8b006481b", "cves": [], "html": "

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", "text": "\u65b0\u589e WITH ORDINALITY \u8bed\u6cd5\uff0c\u4e3a FROM \u5b50\u53e5\u4e2d\u96c6\u5408\u8fd4\u56de\u51fd\u6570\u8fd4\u56de\u7684\u884c\u7f16\u53f7\uff08Andrew Gierth\u3001David Fetter\uff09 \u8fd9\u5bf9 unnest() \u4e4b\u7c7b\u7684\u51fd\u6570\u7279\u522b\u6709\u7528\u3002", "title": "\u65b0\u589e WITH ORDINALITY \u8bed\u6cd5\uff0c\u4e3a FROM \u5b50\u53e5\u4e2d\u96c6\u5408\u8fd4\u56de\u51fd\u6570\u8fd4\u56de\u7684\u884c\u7f16\u53f7", "commits": [], "section": "\u67e5\u8be2", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.5", "source_hash": "34e9ba1d6689c42858dc1f173fa68b4a0b13d3629248289d02d818632bdc2568", "section_path": ["\u67e5\u8be2"], "commit_groups": [], "identity_text": "Add WITH ORDINALITY syntax to number the rows returned from a set-returning function in the FROM clause (Andrew Gierth, David Fetter) This is particularly useful for functions like unnest().", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/058", "db_id": "08b14bffb9dffd4fefac68fc9a7f1ddb", "patch_ids": [], "statement_hash": "351c63284087e1f8acbc7014e25a3a97f1423c1c5a0768ccc8ce94a50f174eff", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-2960fdd8b006481b", "migration": false}, {"id": "9.4.0-4b74ca7d4efb05c4", "cves": [], "html": "

\u65b0\u589e ROWS FROM() \u8bed\u6cd5\uff0c\u5141\u8bb8\u5728 FROM \u5b50\u53e5\u4e2d\u5bf9\u96c6\u5408\u8fd4\u56de\u51fd\u6570\u8fdb\u884c\u6c34\u5e73\u4e32\u8054\uff08Andrew Gierth\uff09

", "text": "\u65b0\u589e ROWS FROM() \u8bed\u6cd5\uff0c\u5141\u8bb8\u5728 FROM \u5b50\u53e5\u4e2d\u5bf9\u96c6\u5408\u8fd4\u56de\u51fd\u6570\u8fdb\u884c\u6c34\u5e73\u4e32\u8054\uff08Andrew Gierth\uff09", "title": "\u65b0\u589e ROWS FROM() \u8bed\u6cd5\uff0c\u5141\u8bb8\u5728 FROM \u5b50\u53e5\u4e2d\u5bf9\u96c6\u5408\u8fd4\u56de\u51fd\u6570\u8fdb\u884c\u6c34\u5e73\u4e32\u8054", "commits": [], "section": "\u67e5\u8be2", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.5", "source_hash": "6bc0005f71337d25f6b09c0d9bce17f5587164198ba0708c8cdcd925fbe8177b", "section_path": ["\u67e5\u8be2"], "commit_groups": [], "identity_text": "Add ROWS FROM() syntax to allow horizontal concatenation of set-returning functions in the FROM clause (Andrew Gierth)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/059", "db_id": "c6d8fae9b1e57295a3c91d8ab2f13f75", "patch_ids": [], "statement_hash": "55f883e060dd3b1641839a77c45953603cedb7258cc8d45cdcb7752539ab8c38", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-4b74ca7d4efb05c4", "migration": false}, {"id": "9.4.0-a839896d17570134", "cves": [], "html": "

\u5141\u8bb8SELECT\u62e5\u6709\u7a7a\u76ee\u6807\u5217\u8868\uff08Tom Lane\uff09

\n

\u589e\u52a0\u6b64\u529f\u80fd\u662f\u4e3a\u4e86\u4f7f\u4ece\u96f6\u5217\u8868\u4e2d\u9009\u62e9\u7684\u89c6\u56fe\u80fd\u591f\u88ab\u6b63\u786e\u8f6c\u50a8\u548c\u8fd8\u539f\u3002

", "text": "\u5141\u8bb8SELECT\u62e5\u6709\u7a7a\u76ee\u6807\u5217\u8868\uff08Tom Lane\uff09 \u589e\u52a0\u6b64\u529f\u80fd\u662f\u4e3a\u4e86\u4f7f\u4ece\u96f6\u5217\u8868\u4e2d\u9009\u62e9\u7684\u89c6\u56fe\u80fd\u591f\u88ab\u6b63\u786e\u8f6c\u50a8\u548c\u8fd8\u539f\u3002", "title": "\u5141\u8bb8SELECT\u62e5\u6709\u7a7a\u76ee\u6807\u5217\u8868", "commits": [], "section": "\u67e5\u8be2", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.5", "source_hash": "5d72eb1f94a93b44185f06a9c236beb010dac46334f0f281e924103fbc627fa0", "section_path": ["\u67e5\u8be2"], "commit_groups": [], "identity_text": "Allow SQL-SELECT to have an empty target list (Tom Lane) This was added so that views that select from a table with zero columns can be dumped and restored correctly.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/060", "db_id": "0531876bb8f6ec2de1cf54db11755549", "patch_ids": [], "statement_hash": "418d86d2a591dbea3d5bf827c80024d81cf7ca89baccff1cc28fe544809012bd", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-a839896d17570134", "migration": false}, {"id": "9.4.0-08d8fcfc7b4e7f2a", "cves": [], "html": "

\u786e\u4fdd SELECT ... FOR UPDATE NOWAIT \u5728\u6d89\u53ca\u5df2\u88ab\u5e76\u53d1\u66f4\u65b0\u5143\u7ec4\u7684\u6781\u7aef\u60c5\u51b5\u4e0b\u4e0d\u4f1a\u7b49\u5f85\uff08Craig Ringer and Thomas Munro\uff09

", "text": "\u786e\u4fdd SELECT ... FOR UPDATE NOWAIT \u5728\u6d89\u53ca\u5df2\u88ab\u5e76\u53d1\u66f4\u65b0\u5143\u7ec4\u7684\u6781\u7aef\u60c5\u51b5\u4e0b\u4e0d\u4f1a\u7b49\u5f85\uff08Craig Ringer and Thomas Munro\uff09", "title": "\u786e\u4fdd SELECT ... FOR UPDATE NOWAIT \u5728\u6d89\u53ca\u5df2\u88ab\u5e76\u53d1\u66f4\u65b0\u5143\u7ec4\u7684\u6781\u7aef\u60c5\u51b5\u4e0b\u4e0d\u4f1a\u7b49\u5f85", "commits": [], "section": "\u67e5\u8be2", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.5", "source_hash": "6129beb2b4642d60334f6dd21bdf53b5c222a1926e152b4d752eb5df7f9b8275", "section_path": ["\u67e5\u8be2"], "commit_groups": [], "identity_text": "Ensure that SELECT ... FOR UPDATE NOWAIT does not wait in corner cases involving already-concurrently-updated tuples (Craig Ringer and Thomas Munro)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/061", "db_id": "527a24244be4d7b01f3a5fc3cefc4b13", "patch_ids": [], "statement_hash": "1ae62d6b8545ae43f254ef844200d86c8f4e2f2fb8a20b9b92feef3dedcb59b0", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-08d8fcfc7b4e7f2a", "migration": false}, {"id": "9.4.0-8bd687a4ed5b8d28", "cves": [], "html": "

\u65b0\u589e DISCARD SEQUENCES \u547d\u4ee4\uff0c\u7528\u4e8e\u4e22\u5f03\u7f13\u5b58\u7684\u5e8f\u5217\u76f8\u5173\u72b6\u6001\uff08Fabr\u00edzio de Royes Mello\u3001Robert Haas\uff09

\n

DISCARD ALL \u73b0\u5728\u4e5f\u4f1a\u4e22\u5f03\u6b64\u7c7b\u4fe1\u606f\u3002

", "text": "\u65b0\u589e DISCARD SEQUENCES \u547d\u4ee4\uff0c\u7528\u4e8e\u4e22\u5f03\u7f13\u5b58\u7684\u5e8f\u5217\u76f8\u5173\u72b6\u6001\uff08Fabr\u00edzio de Royes Mello\u3001Robert Haas\uff09 DISCARD ALL \u73b0\u5728\u4e5f\u4f1a\u4e22\u5f03\u6b64\u7c7b\u4fe1\u606f\u3002", "title": "\u65b0\u589e DISCARD SEQUENCES \u547d\u4ee4\uff0c\u7528\u4e8e\u4e22\u5f03\u7f13\u5b58\u7684\u5e8f\u5217\u76f8\u5173\u72b6\u6001", "commits": [], "section": "\u5de5\u5177\u547d\u4ee4", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.6", "source_hash": "3fcd8539a1c184b6c3bf7bc4826b4c8ab4c0bb0835d7e3789a375e16ab5da969", "section_path": ["\u5de5\u5177\u547d\u4ee4"], "commit_groups": [], "identity_text": "Add DISCARD SEQUENCES command to discard cached sequence-related state (Fabr\u00edzio de Royes Mello, Robert Haas) DISCARD ALL will now also discard such information.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/062", "db_id": "e997d50d211ae7ad274a92a2424c4cb6", "patch_ids": [], "statement_hash": "3bae31298e094673fc3348747e4f90c092f238e95ec3dbce19a31f5d9431e2d5", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-8bd687a4ed5b8d28", "migration": false}, {"id": "9.4.0-30c3326b4bc6248e", "cves": [], "html": "

\u4e3a COPY FROM \u65b0\u589e FORCE NULL \u9009\u9879\uff0c\u5728 CSV \u6a21\u5f0f\u4e0b\u4f7f\u4e0e\u6307\u5b9a\u7a7a\u4e32\u5339\u914d\u7684\u5e26\u5f15\u53f7\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a NULL\uff08Ian Barwick\u3001Michael Paquier\uff09

\n

\u82e5\u4e0d\u4f7f\u7528\u6b64\u9009\u9879\uff0c\u5219\u53ea\u6709\u4e0d\u5e26\u5f15\u53f7\u7684\u5339\u914d\u5b57\u7b26\u4e32\u624d\u4f1a\u88ab\u5bfc\u5165\u4e3a\u7a7a\u503c\u3002

", "text": "\u4e3a COPY FROM \u65b0\u589e FORCE NULL \u9009\u9879\uff0c\u5728 CSV \u6a21\u5f0f\u4e0b\u4f7f\u4e0e\u6307\u5b9a\u7a7a\u4e32\u5339\u914d\u7684\u5e26\u5f15\u53f7\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a NULL\uff08Ian Barwick\u3001Michael Paquier\uff09 \u82e5\u4e0d\u4f7f\u7528\u6b64\u9009\u9879\uff0c\u5219\u53ea\u6709\u4e0d\u5e26\u5f15\u53f7\u7684\u5339\u914d\u5b57\u7b26\u4e32\u624d\u4f1a\u88ab\u5bfc\u5165\u4e3a\u7a7a\u503c\u3002", "title": "\u4e3a COPY FROM \u65b0\u589e FORCE NULL \u9009\u9879\uff0c\u5728 CSV \u6a21\u5f0f\u4e0b\u4f7f\u4e0e\u6307\u5b9a\u7a7a\u4e32\u5339\u914d\u7684\u5e26\u5f15\u53f7\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a NULL", "commits": [], "section": "\u5de5\u5177\u547d\u4ee4", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.6", "source_hash": "2791c7650c26cb8e1c01d2fce4ad74950cfd7a9c80a8ee1b70c13fb130801c44", "section_path": ["\u5de5\u5177\u547d\u4ee4"], "commit_groups": [], "identity_text": "Add FORCE NULL option to COPY FROM, which causes quoted strings matching the specified null string to be converted to NULLs in CSV mode (Ian Barwick, Michael Paquier) Without this option, only unquoted matching strings will be imported as null values.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/063", "db_id": "5f1685d9fbb1098ac4368fbfab40e86b", "patch_ids": [], "statement_hash": "8430ee41f6683782260e52fea2f9e243e7b7c5dc2a474936e147038a0a154a3f", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-30c3326b4bc6248e", "migration": false}, {"id": "9.4.0-841aab2733f2e27d", "cves": [], "html": "

\u5bf9\u5728\u4e8b\u52a1\u5757\u4e4b\u5916\u4f7f\u7528\u4e14\u4e0d\u53ef\u80fd\u751f\u6548\u7684\u547d\u4ee4\u53d1\u51fa\u8b66\u544a\uff08Bruce Momjian\uff09

\n

\u5f53 SET LOCAL\u3001SET CONSTRAINTS\u3001SET TRANSACTION \u548c ABORT \u5728\u4e8b\u52a1\u5757\u4e4b\u5916\u4f7f\u7528\u65f6\u4f1a\u53d1\u51fa\u65b0\u7684\u8b66\u544a\u3002

", "text": "\u5bf9\u5728\u4e8b\u52a1\u5757\u4e4b\u5916\u4f7f\u7528\u4e14\u4e0d\u53ef\u80fd\u751f\u6548\u7684\u547d\u4ee4\u53d1\u51fa\u8b66\u544a\uff08Bruce Momjian\uff09 \u5f53 SET LOCAL\u3001SET CONSTRAINTS\u3001SET TRANSACTION \u548c ABORT \u5728\u4e8b\u52a1\u5757\u4e4b\u5916\u4f7f\u7528\u65f6\u4f1a\u53d1\u51fa\u65b0\u7684\u8b66\u544a\u3002", "title": "\u5bf9\u5728\u4e8b\u52a1\u5757\u4e4b\u5916\u4f7f\u7528\u4e14\u4e0d\u53ef\u80fd\u751f\u6548\u7684\u547d\u4ee4\u53d1\u51fa\u8b66\u544a", "commits": [], "section": "\u5de5\u5177\u547d\u4ee4", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.6", "source_hash": "fb04b524ac687cf87ac1f87d32ac79a7b7e0e394cb664b6e820765c2a4bb7c9b", "section_path": ["\u5de5\u5177\u547d\u4ee4"], "commit_groups": [], "identity_text": "Issue warnings for commands used outside of transaction blocks when they can have no effect (Bruce Momjian) New warnings are issued for SET LOCAL, SET CONSTRAINTS, SET TRANSACTION and ABORT when used outside a transaction block.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/064", "db_id": "bce4b6f186d0b85bf029ff05ec6c3627", "patch_ids": [], "statement_hash": "639974640d1829b921ce1930156832fce6ef412aefc23cb019e34dd9108af33b", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-841aab2733f2e27d", "migration": false}, {"id": "9.4.0-71e51a3c18af2bea", "cves": [], "html": "

\u4f7f EXPLAIN ANALYZE \u663e\u793a\u89c4\u5212\u65f6\u95f4\uff08Andreas Karlsson\uff09

", "text": "\u4f7f EXPLAIN ANALYZE \u663e\u793a\u89c4\u5212\u65f6\u95f4\uff08Andreas Karlsson\uff09", "title": "\u4f7f EXPLAIN ANALYZE \u663e\u793a\u89c4\u5212\u65f6\u95f4", "commits": [], "section": "\u5de5\u5177\u547d\u4ee4 / EXPLAIN", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.6.3", "source_hash": "d2e79176e14565f89614b176949c8184ae92ff182d1cb7cefca7e195155682a5", "section_path": ["\u5de5\u5177\u547d\u4ee4", "EXPLAIN"], "commit_groups": [], "identity_text": "Make EXPLAIN ANALYZE show planning time (Andreas Karlsson)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/065", "db_id": "995c57366e3151d398ebdd157281ea75", "patch_ids": [], "statement_hash": "1fdc074ab0399f8c40323a42b3bcb07ff64fb7763a4383973cf68b8038978a89", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-71e51a3c18af2bea", "migration": false}, {"id": "9.4.0-7ef1135d9b4bc185", "cves": [], "html": "

\u4f7f EXPLAIN \u663e\u793a Agg \u548c Group \u8282\u70b9\u4e2d\u7684\u5206\u7ec4\u5217\uff08Tom Lane\uff09

", "text": "\u4f7f EXPLAIN \u663e\u793a Agg \u548c Group \u8282\u70b9\u4e2d\u7684\u5206\u7ec4\u5217\uff08Tom Lane\uff09", "title": "\u4f7f EXPLAIN \u663e\u793a Agg \u548c Group \u8282\u70b9\u4e2d\u7684\u5206\u7ec4\u5217", "commits": [], "section": "\u5de5\u5177\u547d\u4ee4 / EXPLAIN", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.6.3", "source_hash": "f75a1144c2745a32496b5ed62400b020378876b3af5cea5deaa50727949ccb51", "section_path": ["\u5de5\u5177\u547d\u4ee4", "EXPLAIN"], "commit_groups": [], "identity_text": "Make EXPLAIN show the grouping columns in Agg and Group nodes (Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/066", "db_id": "0790f03ae298226e6fed1ebd295ca1cd", "patch_ids": [], "statement_hash": "0c114312fbdfbf200cccc8b175e970beb784433840afa9a0173cc4a0359b5236", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-7ef1135d9b4bc185", "migration": false}, {"id": "9.4.0-7eef62429539e266", "cves": [], "html": "

\u4f7f EXPLAIN ANALYZE \u663e\u793a\u4f4d\u56fe\u5806\u626b\u63cf\u4e2d\u7684\u7cbe\u786e\u548c\u6709\u635f\u5757\u8ba1\u6570\uff08Etsuro Fujita\uff09

", "text": "\u4f7f EXPLAIN ANALYZE \u663e\u793a\u4f4d\u56fe\u5806\u626b\u63cf\u4e2d\u7684\u7cbe\u786e\u548c\u6709\u635f\u5757\u8ba1\u6570\uff08Etsuro Fujita\uff09", "title": "\u4f7f EXPLAIN ANALYZE \u663e\u793a\u4f4d\u56fe\u5806\u626b\u63cf\u4e2d\u7684\u7cbe\u786e\u548c\u6709\u635f\u5757\u8ba1\u6570", "commits": [], "section": "\u5de5\u5177\u547d\u4ee4 / EXPLAIN", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.6.3", "source_hash": "6af37f5b1ed1b47b6818df13a42a884a9238704aad37edf14dd5f4e45fa9d000", "section_path": ["\u5de5\u5177\u547d\u4ee4", "EXPLAIN"], "commit_groups": [], "identity_text": "Make EXPLAIN ANALYZE show exact and lossy block counts in bitmap heap scans (Etsuro Fujita)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/067", "db_id": "8d04df04532eed9b1a33b43637e9672d", "patch_ids": [], "statement_hash": "ff8b79d1cc9b588299752b86d8de8038b6490786f3b54a656bb8a2c24caeaae7", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-7eef62429539e266", "migration": false}, {"id": "9.4.0-2003def672391fe9", "cves": [], "html": "

\u5141\u8bb8\u5237\u65b0\u7269\u5316\u89c6\u56fe\u800c\u4e0d\u963b\u585e\u5176\u4ed6\u4f1a\u8bdd\u5728\u6b64\u671f\u95f4\u8bfb\u53d6\u8be5\u89c6\u56fe\uff08Kevin Grittner\uff09

\n

\u8fd9\u901a\u8fc7 REFRESH MATERIALIZED VIEW CONCURRENTLY \u5b8c\u6210\u3002

", "text": "\u5141\u8bb8\u5237\u65b0\u7269\u5316\u89c6\u56fe\u800c\u4e0d\u963b\u585e\u5176\u4ed6\u4f1a\u8bdd\u5728\u6b64\u671f\u95f4\u8bfb\u53d6\u8be5\u89c6\u56fe\uff08Kevin Grittner\uff09 \u8fd9\u901a\u8fc7 REFRESH MATERIALIZED VIEW CONCURRENTLY \u5b8c\u6210\u3002", "title": "\u5141\u8bb8\u5237\u65b0\u7269\u5316\u89c6\u56fe\u800c\u4e0d\u963b\u585e\u5176\u4ed6\u4f1a\u8bdd\u5728\u6b64\u671f\u95f4\u8bfb\u53d6\u8be5\u89c6\u56fe", "commits": [], "section": "\u5de5\u5177\u547d\u4ee4 / \u89c6\u56fe", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.6.4", "source_hash": "497d477685b294aec55b34f60596113fa7883fbbe06b058340314bb88bb2605d", "section_path": ["\u5de5\u5177\u547d\u4ee4", "\u89c6\u56fe"], "commit_groups": [], "identity_text": "Allow a materialized view to be refreshed without blocking other sessions from reading the view meanwhile (Kevin Grittner) This is done with REFRESH MATERIALIZED VIEW CONCURRENTLY.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/068", "db_id": "3a0b74c6f7586266cfa74b9ae6f14670", "patch_ids": [], "statement_hash": "ad06ce97fbc6907606c4afc6937431dfd8852476969ffea6229ebef48c38b44e", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-2003def672391fe9", "migration": false}, {"id": "9.4.0-24adc04b8951ecd8", "cves": [], "html": "

\u5141\u8bb8\u89c6\u56fe\u88ab\u81ea\u52a8\u66f4\u65b0\uff0c\u5373\u4f7f\u5b83\u4eec\u5305\u542b\u4e00\u4e9b\u4e0d\u53ef\u66f4\u65b0\u7684\u5217\uff08Dean Rasheed\uff09

\n

\u6b64\u524d\uff0c\u5b58\u5728\u8868\u8fbe\u5f0f\u3001\u5b57\u9762\u91cf\u548c\u51fd\u6570\u8c03\u7528\u7b49\u4e0d\u53ef\u66f4\u65b0\u8f93\u51fa\u5217\u4f1a\u963b\u6b62\u81ea\u52a8\u66f4\u65b0\u3002\u73b0\u5728\u652f\u6301 INSERT\u3001UPDATE \u548c DELETE\uff0c\u53ea\u8981\u5b83\u4eec\u4e0d\u8bd5\u56fe\u4e3a\u4efb\u4f55\u4e0d\u53ef\u66f4\u65b0\u5217\u8d4b\u65b0\u503c\u3002

", "text": "\u5141\u8bb8\u89c6\u56fe\u88ab\u81ea\u52a8\u66f4\u65b0\uff0c\u5373\u4f7f\u5b83\u4eec\u5305\u542b\u4e00\u4e9b\u4e0d\u53ef\u66f4\u65b0\u7684\u5217\uff08Dean Rasheed\uff09 \u6b64\u524d\uff0c\u5b58\u5728\u8868\u8fbe\u5f0f\u3001\u5b57\u9762\u91cf\u548c\u51fd\u6570\u8c03\u7528\u7b49\u4e0d\u53ef\u66f4\u65b0\u8f93\u51fa\u5217\u4f1a\u963b\u6b62\u81ea\u52a8\u66f4\u65b0\u3002\u73b0\u5728\u652f\u6301 INSERT\u3001UPDATE \u548c DELETE\uff0c\u53ea\u8981\u5b83\u4eec\u4e0d\u8bd5\u56fe\u4e3a\u4efb\u4f55\u4e0d\u53ef\u66f4\u65b0\u5217\u8d4b\u65b0\u503c\u3002", "title": "\u5141\u8bb8\u89c6\u56fe\u88ab\u81ea\u52a8\u66f4\u65b0\uff0c\u5373\u4f7f\u5b83\u4eec\u5305\u542b\u4e00\u4e9b\u4e0d\u53ef\u66f4\u65b0\u7684\u5217", "commits": [], "section": "\u5de5\u5177\u547d\u4ee4 / \u89c6\u56fe", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.6.4", "source_hash": "d5a710154128f669c9b04c462c4077a74ec3306b3ca2396264a0156219a6eb43", "section_path": ["\u5de5\u5177\u547d\u4ee4", "\u89c6\u56fe"], "commit_groups": [], "identity_text": "Allow views to be automatically updated even if they contain some non-updatable columns (Dean Rasheed) Previously the presence of non-updatable output columns such as expressions, literals, and function calls prevented automatic updates. Now INSERTs, UPDATEs and DELETEs are supported, provided that they do not attempt to assign new values to any of the non-updatable columns.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/069", "db_id": "2cbd6b47d7c55eeae1ab5ffc90279de4", "patch_ids": [], "statement_hash": "be8db8dce1437d209a447cf18b2ea113742f90cef7d066b2b4d77734e8805f75", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-24adc04b8951ecd8", "migration": false}, {"id": "9.4.0-7b9247b2955feffe", "cves": [], "html": "

\u5141\u8bb8\u63a7\u5236 INSERT \u548c UPDATE \u80fd\u5426\u5411\u81ea\u52a8\u53ef\u66f4\u65b0\u89c6\u56fe\u4e2d\u6dfb\u52a0\u4e0d\u4f1a\u51fa\u73b0\u5728\u8be5\u89c6\u56fe\u4e2d\u7684\u884c\uff08Dean Rasheed\uff09

\n

\u8fd9\u901a\u8fc7\u65b0\u7684CREATE VIEW\u5b50\u53e5 WITH CHECK OPTION \u63a7\u5236\u3002

", "text": "\u5141\u8bb8\u63a7\u5236 INSERT \u548c UPDATE \u80fd\u5426\u5411\u81ea\u52a8\u53ef\u66f4\u65b0\u89c6\u56fe\u4e2d\u6dfb\u52a0\u4e0d\u4f1a\u51fa\u73b0\u5728\u8be5\u89c6\u56fe\u4e2d\u7684\u884c\uff08Dean Rasheed\uff09 \u8fd9\u901a\u8fc7\u65b0\u7684CREATE VIEW\u5b50\u53e5 WITH CHECK OPTION \u63a7\u5236\u3002", "title": "\u5141\u8bb8\u63a7\u5236 INSERT \u548c UPDATE \u80fd\u5426\u5411\u81ea\u52a8\u53ef\u66f4\u65b0\u89c6\u56fe\u4e2d\u6dfb\u52a0\u4e0d\u4f1a\u51fa\u73b0\u5728\u8be5\u89c6\u56fe\u4e2d\u7684\u884c", "commits": [], "section": "\u5de5\u5177\u547d\u4ee4 / \u89c6\u56fe", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.6.4", "source_hash": "377a2e8087930fe7d5ee74ff58686172d529721a7eb50aae913175b61a39fa85", "section_path": ["\u5de5\u5177\u547d\u4ee4", "\u89c6\u56fe"], "commit_groups": [], "identity_text": "Allow control over whether INSERTs and UPDATEs can add rows to an auto-updatable view that would not appear in the view (Dean Rasheed) This is controlled with the new SQL-CREATEVIEW clause WITH CHECK OPTION.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/070", "db_id": "da8bf77cc1d56ef46ca27c0d37bd7461", "patch_ids": [], "statement_hash": "23b982d1697bbadc1b4cddaa29c840ccd31418d70ce30cc93b90f892ca68e316", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-7b9247b2955feffe", "migration": false}, {"id": "9.4.0-1b16d424d83efd12", "cves": [], "html": "

\u5141\u8bb8\u5b89\u5168\u5c4f\u969c\u89c6\u56fe\u88ab\u81ea\u52a8\u66f4\u65b0\uff08Dean Rasheed\uff09

", "text": "\u5141\u8bb8\u5b89\u5168\u5c4f\u969c\u89c6\u56fe\u88ab\u81ea\u52a8\u66f4\u65b0\uff08Dean Rasheed\uff09", "title": "\u5141\u8bb8\u5b89\u5168\u5c4f\u969c\u89c6\u56fe\u88ab\u81ea\u52a8\u66f4\u65b0", "commits": [], "section": "\u5de5\u5177\u547d\u4ee4 / \u89c6\u56fe", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.6.4", "source_hash": "e704571f0bcd161e217cd16316a6a68340651d8f9bd49868b5077ae30191170d", "section_path": ["\u5de5\u5177\u547d\u4ee4", "\u89c6\u56fe"], "commit_groups": [], "identity_text": "Allow security barrier views to be automatically updatable (Dean Rasheed)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/071", "db_id": "23d9edbf02e80238bc2533231f095468", "patch_ids": [], "statement_hash": "2f9e1ca4ca0895e4821e740ebeda3eee1186f8bdc1a0ac2fce43e321de1be31c", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-1b16d424d83efd12", "migration": false}, {"id": "9.4.0-960eea84a0e151e1", "cves": [], "html": "

\u652f\u6301\u5728\u5916\u90e8\u8868\u4e0a\u4f7f\u7528\u89e6\u53d1\u5668\uff08Ronan Dunklau\uff09

", "text": "\u652f\u6301\u5728\u5916\u90e8\u8868\u4e0a\u4f7f\u7528\u89e6\u53d1\u5668\uff08Ronan Dunklau\uff09", "title": "\u652f\u6301\u5728\u5916\u90e8\u8868\u4e0a\u4f7f\u7528\u89e6\u53d1\u5668", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.7", "source_hash": "d2c7ff03f51295e4a3efa52dcaf4a6295f95c090751d02c9e38df91b4543f517", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Support triggers on foreign tables (Ronan Dunklau)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/072", "db_id": "669db79a26348c7bd9347064f5cf481f", "patch_ids": [], "statement_hash": "b44cb199ca0699c8f4e03d817e217ce6e02ab7d887f9592b886e805dd2f91501", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-960eea84a0e151e1", "migration": false}, {"id": "9.4.0-bf6d33c168b608bc", "cves": [], "html": "

\u5141\u8bb8\u4f7f\u7528ALTER TABLE\u3001ALTER INDEX\u6216ALTER MATERIALIZED VIEW\u7684 ALL IN TABLESPACE ... SET TABLESPACE \u5f62\u5f0f\u628a\u6210\u7ec4\u5bf9\u8c61\u4ece\u4e00\u4e2a\u8868\u7a7a\u95f4\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u8868\u7a7a\u95f4\uff08Stephen Frost\uff09

", "text": "\u5141\u8bb8\u4f7f\u7528ALTER TABLE\u3001ALTER INDEX\u6216ALTER MATERIALIZED VIEW\u7684 ALL IN TABLESPACE ... SET TABLESPACE \u5f62\u5f0f\u628a\u6210\u7ec4\u5bf9\u8c61\u4ece\u4e00\u4e2a\u8868\u7a7a\u95f4\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u8868\u7a7a\u95f4\uff08Stephen Frost\uff09", "title": "\u5141\u8bb8\u4f7f\u7528ALTER TABLE\u3001ALTER INDEX\u6216ALTER MATERIALIZED VIEW\u7684 ALL IN TABLESPACE ... SET TABLESPACE \u5f62\u5f0f\u628a\u6210\u7ec4\u5bf9\u8c61\u4ece\u4e00\u4e2a\u8868\u7a7a\u95f4\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u8868\u7a7a\u95f4", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.7", "source_hash": "76b4ede66829c88251988027ba962189bf4ecc9e493c4e796817b4a19aed2cf3", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Allow moving groups of objects from one tablespace to another using the ALL IN TABLESPACE ... SET TABLESPACE form of SQL-ALTERTABLE , SQL-ALTERINDEX , or SQL-ALTERMATERIALIZEDVIEW (Stephen Frost)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/073", "db_id": "b82355d6227386532ce26f9bb862d3bb", "patch_ids": [], "statement_hash": "d2eb9d6ad9d1e5278d9d02ba21455a2afe927523439679640f4873978cae0f7a", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-bf6d33c168b608bc", "migration": false}, {"id": "9.4.0-9385d6b48eda273e", "cves": [], "html": "

\u5141\u8bb8\u901a\u8fc7ALTER TABLE ... ALTER CONSTRAINT \u66f4\u6539\u5916\u952e\u7ea6\u675f\u7684\u53ef\u5ef6\u8fdf\u6027\uff08Simon Riggs\uff09

", "text": "\u5141\u8bb8\u901a\u8fc7ALTER TABLE ... ALTER CONSTRAINT \u66f4\u6539\u5916\u952e\u7ea6\u675f\u7684\u53ef\u5ef6\u8fdf\u6027\uff08Simon Riggs\uff09", "title": "\u5141\u8bb8\u901a\u8fc7ALTER TABLE ... ALTER CONSTRAINT \u66f4\u6539\u5916\u952e\u7ea6\u675f\u7684\u53ef\u5ef6\u8fdf\u6027", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.7", "source_hash": "5ac9b76b9a4d62521c6f5f1d279a93a022b6eb2a1543d2b0b09726f045eac450", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Allow changing foreign key constraint deferrability via SQL-ALTERTABLE ... ALTER CONSTRAINT (Simon Riggs)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/074", "db_id": "102f396fcf51b83b46d090d33f5000e3", "patch_ids": [], "statement_hash": "6784c8b5f75f253134bda86416902b79415384f47c0927e32c6451afdd62126a", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-9385d6b48eda273e", "migration": false}, {"id": "9.4.0-518c5f5c9167628f", "cves": [], "html": "

\u964d\u4f4e\u67d0\u4e9bALTER TABLE\u547d\u4ee4\u7684\u9501\u5f3a\u5ea6\uff08Simon Riggs\u3001Noah Misch\u3001Robert Haas\uff09

\n

\u5177\u4f53\u800c\u8a00\uff0cVALIDATE CONSTRAINT\u3001CLUSTER ON\u3001SET WITHOUT CLUSTER\u3001ALTER COLUMN SET STATISTICS\u3001ALTER COLUMN SET (attribute_option)\u3001ALTER COLUMN RESET (attribute_option) \u4e0d\u518d\u9700\u8981 ACCESS EXCLUSIVE \u9501\u3002

", "text": "\u964d\u4f4e\u67d0\u4e9bALTER TABLE\u547d\u4ee4\u7684\u9501\u5f3a\u5ea6\uff08Simon Riggs\u3001Noah Misch\u3001Robert Haas\uff09 \u5177\u4f53\u800c\u8a00\uff0cVALIDATE CONSTRAINT\u3001CLUSTER ON\u3001SET WITHOUT CLUSTER\u3001ALTER COLUMN SET STATISTICS\u3001ALTER COLUMN SET (attribute_option)\u3001ALTER COLUMN RESET (attribute_option) \u4e0d\u518d\u9700\u8981 ACCESS EXCLUSIVE \u9501\u3002", "title": "\u964d\u4f4e\u67d0\u4e9bALTER TABLE\u547d\u4ee4\u7684\u9501\u5f3a\u5ea6", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.7", "source_hash": "4641ae0c85fddf49587ac0fb791eaa9af70d8afa7934636817c1059eacc8e719", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Reduce lock strength for some SQL-ALTERTABLE commands (Simon Riggs, Noah Misch, Robert Haas) Specifically, VALIDATE CONSTRAINT, CLUSTER ON, SET WITHOUT CLUSTER, ALTER COLUMN SET STATISTICS, ALTER COLUMN SET (attribute_option), ALTER COLUMN RESET (attribute_option) no longer require ACCESS EXCLUSIVE locks.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/075", "db_id": "6f9e043bb929a6be871c03c16472b21f", "patch_ids": [], "statement_hash": "11a395993757eab8954d263cc665ea67e20bf143574c653d9ace17cdf2ac01bd", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-518c5f5c9167628f", "migration": false}, {"id": "9.4.0-5035773425c2b4ae", "cves": [], "html": "

\u5141\u8bb8\u5728CREATE TABLESPACE\u4e2d\u8bbe\u7f6e\u8868\u7a7a\u95f4\u9009\u9879\uff08Vik Fearing\uff09

\n

\u4ee5\u524d\u8fd9\u4e9b\u9009\u9879\u53ea\u80fd\u901a\u8fc7ALTER TABLESPACE\u8bbe\u7f6e\u3002

", "text": "\u5141\u8bb8\u5728CREATE TABLESPACE\u4e2d\u8bbe\u7f6e\u8868\u7a7a\u95f4\u9009\u9879\uff08Vik Fearing\uff09 \u4ee5\u524d\u8fd9\u4e9b\u9009\u9879\u53ea\u80fd\u901a\u8fc7ALTER TABLESPACE\u8bbe\u7f6e\u3002", "title": "\u5141\u8bb8\u5728CREATE TABLESPACE\u4e2d\u8bbe\u7f6e\u8868\u7a7a\u95f4\u9009\u9879", "commits": [], "section": "\u5bf9\u8c61\u64cd\u4f5c", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.7", "source_hash": "367a90f9e602ced97ee70863558a59433401f2b057f454566bf1648d523decc4", "section_path": ["\u5bf9\u8c61\u64cd\u4f5c"], "commit_groups": [], "identity_text": "Allow tablespace options to be set in SQL-CREATETABLESPACE (Vik Fearing) Formerly these options could only be set via SQL-ALTERTABLESPACE .", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/076", "db_id": "656ae68c7b645ad0691486c3e5a03726", "patch_ids": [], "statement_hash": "bec92b9961609d0ee63938645c8d9ac28a414db2f99d10bc1e857450e6082e71", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-5035773425c2b4ae", "migration": false}, {"id": "9.4.0-bdc5b8141dc110eb", "cves": [], "html": "

\u5141\u8bb8CREATE AGGREGATE\u5b9a\u4e49\u805a\u96c6\u8f6c\u6362\u72b6\u6001\u6570\u636e\u7684\u4f30\u8ba1\u5927\u5c0f\uff08Hadi Moshayedi\uff09

\n

\u6070\u5f53\u4f7f\u7528\u6b64\u529f\u80fd\u53ef\u4f7f\u89c4\u5212\u5668\u66f4\u597d\u5730\u4f30\u8ba1\u805a\u96c6\u5c06\u4f7f\u7528\u591a\u5c11\u5185\u5b58\u3002

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\n

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\n

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\u5141\u8bb8\u628a\u5355\u70b9polygon\u8f6c\u6362\u4e3acircle\uff08Bruce Momjian\uff09

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\n

\u6b64\u524d\uff0cPostgreSQL \u5047\u5b9a\u65f6\u533a\u7f29\u5199\uff08\u5982 EST\uff09\u5173\u8054\u7684 UTC \u504f\u79fb\u5728\u4efb\u4f55\u7279\u5b9a\u533a\u57df\u8bbe\u7f6e\u7684\u7528\u6cd5\u4e2d\u6c38\u4e0d\u6539\u53d8\u3002\u7136\u800c\u8fd9\u4e00\u5047\u8bbe\u5728\u73b0\u5b9e\u4e16\u754c\u4e2d\u5e76\u4e0d\u6210\u7acb\uff0c\u56e0\u6b64\u5f15\u5165\u4e86\u8ba9\u533a\u57df\u7f29\u5199\u8868\u793a\u6709\u65f6\u4f1a\u53d8\u5316\u7684 UTC \u504f\u79fb\u7684\u80fd\u529b\u3002\u66f4\u65b0\u4e86\u65f6\u533a\u7f29\u5199\u5b9a\u4e49\u6587\u4ef6\uff0c\u5728\u81ea 1970 \u5e74\u4ee5\u6765\u7f29\u5199\u7684 UTC \u504f\u79fb\u53d1\u751f\u8fc7\u53d8\u5316\u7684\u65f6\u533a\u533a\u57df\u8bbe\u7f6e\u4e2d\u4f7f\u7528\u6b64\u529f\u80fd\uff08\u4f9d\u636e IANA \u65f6\u533a\u6570\u636e\u5e93\uff09\u3002\u5728\u6b64\u7c7b\u65f6\u533a\u4e2d\uff0cPostgreSQL \u73b0\u5728\u4f1a\u6839\u636e\u7ed9\u5b9a\u65e5\u671f\u4e3a\u7f29\u5199\u5173\u8054\u6b63\u786e\u7684 UTC \u504f\u79fb\u3002

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\n

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\n

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\n

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\u5141\u8bb8 unnest() \u63a5\u53d7\u591a\u4e2a\u53c2\u6570\uff0c\u5404\u53c2\u6570\u5206\u522b\u5c55\u5f00\u540e\u518d\u6c34\u5e73\u4e32\u8054\uff08Andrew Gierth\uff09

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\n

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\u4f7f to_char() \u7684 TZ \u683c\u5f0f\u8bf4\u660e\u7b26\u5bf9\u7b80\u5355\u7684\u6570\u5b57\u65f6\u533a\u504f\u79fb\u8fd4\u56de\u6709\u7528\u7684\u503c\uff08Tom Lane\uff09

\n

\u6b64\u524d\uff0c\u5982\u679c timezone \u88ab\u8bbe\u7f6e\u4e3a\u7c7b\u4f3c -4 \u7684\u5e38\u91cf\uff0cto_char(CURRENT_TIMESTAMP, 'TZ') \u4f1a\u8fd4\u56de\u7a7a\u5b57\u7b26\u4e32\u3002

", "text": "\u4f7f to_char() \u7684 TZ \u683c\u5f0f\u8bf4\u660e\u7b26\u5bf9\u7b80\u5355\u7684\u6570\u5b57\u65f6\u533a\u504f\u79fb\u8fd4\u56de\u6709\u7528\u7684\u503c\uff08Tom Lane\uff09 \u6b64\u524d\uff0c\u5982\u679c timezone \u88ab\u8bbe\u7f6e\u4e3a\u7c7b\u4f3c -4 \u7684\u5e38\u91cf\uff0cto_char(CURRENT_TIMESTAMP, 'TZ') \u4f1a\u8fd4\u56de\u7a7a\u5b57\u7b26\u4e32\u3002", "title": "\u4f7f to_char() \u7684 TZ \u683c\u5f0f\u8bf4\u660e\u7b26\u5bf9\u7b80\u5355\u7684\u6570\u5b57\u65f6\u533a\u504f\u79fb\u8fd4\u56de\u6709\u7528\u7684\u503c", "commits": [], "section": "\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9", "source_hash": "4bba0708133968aa4a7b2609d8b98bbd146ed8fefeb980211f0799c19151a56a", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Make to_char()'s TZ format specifier return a useful value for simple numeric time zone offsets (Tom Lane) Previously, to_char(CURRENT_TIMESTAMP, 'TZ') returned an empty string if the timezone was set to a constant like -4.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/094", "db_id": "3cd6a7314c12fa1fa024581b84fc491f", "patch_ids": [], "statement_hash": "8d242e7e4c06cd1528dca6fa1ab36c1ef7d2e2fce8dd5d0a8880f825300a7b16", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-8d2460daa45a5a11", "migration": false}, {"id": "9.4.0-4a755d5017bb4716", "cves": [], "html": "

\u4e3a to_char() \u65b0\u589e\u65f6\u533a\u504f\u79fb\u683c\u5f0f\u8bf4\u660e\u7b26 OF\uff08Bruce Momjian\uff09

", "text": "\u4e3a to_char() \u65b0\u589e\u65f6\u533a\u504f\u79fb\u683c\u5f0f\u8bf4\u660e\u7b26 OF\uff08Bruce Momjian\uff09", "title": "\u4e3a to_char() \u65b0\u589e\u65f6\u533a\u504f\u79fb\u683c\u5f0f\u8bf4\u660e\u7b26 OF", "commits": [], "section": "\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9", "source_hash": "b7d5764353dd2cca1d37f3850ee608bf494e9bb54bb39c825d585db2af3150c2", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Add timezone offset format specifier OF to to_char() (Bruce Momjian)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/095", "db_id": "d4dad0b7f999759788441855cffff3bd", "patch_ids": [], "statement_hash": "5964a81fa556a76b60700a144c55628d425f5ded49087df1e2e332be6294e2eb", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-4a755d5017bb4716", "migration": false}, {"id": "9.4.0-df4c69a9a548901f", "cves": [], "html": "

\u6539\u8fdb random() \u6240\u7528\u7684\u968f\u673a\u79cd\u5b50\uff08Honza Horak\uff09

", "text": "\u6539\u8fdb random() \u6240\u7528\u7684\u968f\u673a\u79cd\u5b50\uff08Honza Horak\uff09", "title": "\u6539\u8fdb random() \u6240\u7528\u7684\u968f\u673a\u79cd\u5b50", "commits": [], "section": "\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9", "source_hash": "3786aab5337fc5a7177c2e1f03f7d2ec465ddc3106f58032a70aee0140348d0c", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Improve the random seed used for random() (Honza Horak)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/096", "db_id": "a2305918fb87e954160819f4933e399a", "patch_ids": [], "statement_hash": "3fd9018b8c2ab8559b7080a75d0f2906e841c6c08e637b042791d9464c95d700", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-df4c69a9a548901f", "migration": false}, {"id": "9.4.0-7ac40e795e5bae6a", "cves": [], "html": "

\u6536\u7d27 chr(int) \u4e2d\u5bf9 Unicode \u7801\u70b9\u7684\u6709\u6548\u6027\u68c0\u67e5\uff08Tom Lane\uff09

\n

\u6b64\u51fd\u6570\u73b0\u5728\u53ea\u63a5\u53d7\u6309\u7167 RFC 3629 \u662f\u6709\u6548 UTF8 \u5b57\u7b26\u7684\u503c\u3002

", "text": "\u6536\u7d27 chr(int) \u4e2d\u5bf9 Unicode \u7801\u70b9\u7684\u6709\u6548\u6027\u68c0\u67e5\uff08Tom Lane\uff09 \u6b64\u51fd\u6570\u73b0\u5728\u53ea\u63a5\u53d7\u6309\u7167 RFC 3629 \u662f\u6709\u6548 UTF8 \u5b57\u7b26\u7684\u503c\u3002", "title": "\u6536\u7d27 chr(int) \u4e2d\u5bf9 Unicode \u7801\u70b9\u7684\u6709\u6548\u6027\u68c0\u67e5", "commits": [], "section": "\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9", "source_hash": "0dd7b4ee7b25c564e707ceef10181b3857731654bc3d96d8cf241cdb4d765787", "section_path": ["\u51fd\u6570"], "commit_groups": [], "identity_text": "Tighten validity checking for Unicode code points in chr(int) (Tom Lane) This function now only accepts values that are valid UTF8 characters according to RFC 3629.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/097", "db_id": "2158dcf319aa4a10e69a70073fa41b8b", "patch_ids": [], "statement_hash": "0a861a7837b92a9b576ecd7f327c390686b9d8472814be85c79f4e77c0778382", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-7ac40e795e5bae6a", "migration": false}, {"id": "9.4.0-a9b9cfda01500899", "cves": [], "html": "

\u65b0\u589e\u5728 pg_class\u3001pg_proc\u3001pg_type \u548c pg_operator \u4e2d\u67e5\u627e\u5bf9\u8c61\u7684\u51fd\u6570\uff0c\u5b83\u4eec\u4e0d\u4f1a\u5bf9\u4e0d\u5b58\u5728\u7684\u5bf9\u8c61\u4ea7\u751f\u9519\u8bef\uff08Yugo Nagata\u3001Nozomi Anzai\u3001Robert Haas\uff09

\n

\u4f8b\u5982\uff0cto_regclass() \u7c7b\u4f3c\u4e8e regclass \u8f93\u5165\u51fd\u6570\u5728 pg_class \u4e2d\u8fdb\u884c\u67e5\u627e\uff0c\u4f46\u5bf9\u4e0d\u5b58\u5728\u7684\u5bf9\u8c61\u8fd4\u56de NULL \u800c\u4e0d\u662f\u5931\u8d25\u3002

", "text": "\u65b0\u589e\u5728 pg_class\u3001pg_proc\u3001pg_type \u548c pg_operator \u4e2d\u67e5\u627e\u5bf9\u8c61\u7684\u51fd\u6570\uff0c\u5b83\u4eec\u4e0d\u4f1a\u5bf9\u4e0d\u5b58\u5728\u7684\u5bf9\u8c61\u4ea7\u751f\u9519\u8bef\uff08Yugo Nagata\u3001Nozomi Anzai\u3001Robert Haas\uff09 \u4f8b\u5982\uff0cto_regclass() \u7c7b\u4f3c\u4e8e regclass \u8f93\u5165\u51fd\u6570\u5728 pg_class \u4e2d\u8fdb\u884c\u67e5\u627e\uff0c\u4f46\u5bf9\u4e0d\u5b58\u5728\u7684\u5bf9\u8c61\u8fd4\u56de NULL \u800c\u4e0d\u662f\u5931\u8d25\u3002", "title": "\u65b0\u589e\u5728 pg_class\u3001pg_proc\u3001pg_type \u548c pg_operator \u4e2d\u67e5\u627e\u5bf9\u8c61\u7684\u51fd\u6570\uff0c\u5b83\u4eec\u4e0d\u4f1a\u5bf9\u4e0d\u5b58\u5728\u7684\u5bf9\u8c61\u4ea7\u751f\u9519\u8bef", "commits": [], "section": "\u51fd\u6570 / \u7cfb\u7edf\u4fe1\u606f\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9.3", "source_hash": "fa26831520f25348b02da7d57645fd3652e646565244a4876290440cc19f9509", "section_path": ["\u51fd\u6570", "\u7cfb\u7edf\u4fe1\u606f\u51fd\u6570"], "commit_groups": [], "identity_text": "Add functions for looking up objects in pg_class, pg_proc, pg_type, and pg_operator that do not generate errors for non-existent objects (Yugo Nagata, Nozomi Anzai, Robert Haas) For example, to_regclass() does a lookup in pg_class similarly to the regclass input function, but it returns NULL for a non-existent object instead of failing.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/098", "db_id": "4f0630f285d86fdd2cc1454179fd9476", "patch_ids": [], "statement_hash": "6d01812773bebb24340d7c44af37f9bc553e6866c0b2fecadf0b343bf4c862cb", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-a9b9cfda01500899", "migration": false}, {"id": "9.4.0-9b56e16802c10e9f", "cves": [], "html": "

\u65b0\u589e\u51fd\u6570 pg_filenode_relation()\uff0c\u5141\u8bb8\u66f4\u9ad8\u6548\u5730\u4ece\u6587\u4ef6\u8282\u70b9\u67e5\u627e\u5173\u7cfb\u540d\uff08Andres Freund\uff09

", "text": "\u65b0\u589e\u51fd\u6570 pg_filenode_relation()\uff0c\u5141\u8bb8\u66f4\u9ad8\u6548\u5730\u4ece\u6587\u4ef6\u8282\u70b9\u67e5\u627e\u5173\u7cfb\u540d\uff08Andres Freund\uff09", "title": "\u65b0\u589e\u51fd\u6570 pg_filenode_relation()\uff0c\u5141\u8bb8\u66f4\u9ad8\u6548\u5730\u4ece\u6587\u4ef6\u8282\u70b9\u67e5\u627e\u5173\u7cfb\u540d", "commits": [], "section": "\u51fd\u6570 / \u7cfb\u7edf\u4fe1\u606f\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9.3", "source_hash": "daf7f7cc7689f4c8bd51d524605809326aa856bc74358f2ec6fef976181ab8ac", "section_path": ["\u51fd\u6570", "\u7cfb\u7edf\u4fe1\u606f\u51fd\u6570"], "commit_groups": [], "identity_text": "Add function pg_filenode_relation() to allow for more efficient lookup of relation names from filenodes (Andres Freund)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/099", "db_id": "8dd329313a930ba46939718fb2fb04e6", "patch_ids": [], "statement_hash": "88dbf851124bb0d562c2240bfa4f6124a841269d56200eb14abcfeebe88397e4", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-9b56e16802c10e9f", "migration": false}, {"id": "9.4.0-98c94736ce2fab5a", "cves": [], "html": "

\u4e3a information_schema.parameters \u89c6\u56fe\u65b0\u589e parameter_default \u5217\uff08Peter Eisentraut\uff09

", "text": "\u4e3a information_schema.parameters \u89c6\u56fe\u65b0\u589e parameter_default \u5217\uff08Peter Eisentraut\uff09", "title": "\u4e3a information_schema.parameters \u89c6\u56fe\u65b0\u589e parameter_default \u5217", "commits": [], "section": "\u51fd\u6570 / \u7cfb\u7edf\u4fe1\u606f\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9.3", "source_hash": "4f85410358dc5036f211033aae25f652511eb9aebe1f2ca7b2afbf7d6e7d3103", "section_path": ["\u51fd\u6570", "\u7cfb\u7edf\u4fe1\u606f\u51fd\u6570"], "commit_groups": [], "identity_text": "Add parameter_default column to information_schema.parameters view (Peter Eisentraut)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/100", "db_id": "e107731cc8a47517e39123f11e1b588d", "patch_ids": [], "statement_hash": "f5f28d4b8ed323040c5cd4921b17eee8407407021f71c755f3cdf6de0406f0bd", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-98c94736ce2fab5a", "migration": false}, {"id": "9.4.0-4cae88af306060f8", "cves": [], "html": "

\u4f7f information_schema.schemata \u663e\u793a\u6240\u6709\u53ef\u8bbf\u95ee\u7684\u6a21\u5f0f\uff08Peter Eisentraut\uff09

\n

\u6b64\u524d\u5b83\u53ea\u663e\u793a\u5f53\u524d\u7528\u6237\u62e5\u6709\u7684\u6a21\u5f0f\u3002

", "text": "\u4f7f information_schema.schemata \u663e\u793a\u6240\u6709\u53ef\u8bbf\u95ee\u7684\u6a21\u5f0f\uff08Peter Eisentraut\uff09 \u6b64\u524d\u5b83\u53ea\u663e\u793a\u5f53\u524d\u7528\u6237\u62e5\u6709\u7684\u6a21\u5f0f\u3002", "title": "\u4f7f information_schema.schemata \u663e\u793a\u6240\u6709\u53ef\u8bbf\u95ee\u7684\u6a21\u5f0f", "commits": [], "section": "\u51fd\u6570 / \u7cfb\u7edf\u4fe1\u606f\u51fd\u6570", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9.3", "source_hash": "686f23b7c21ff1dd8caca72587f204a6ba98e36b87a3de585c69fceecb189a65", "section_path": ["\u51fd\u6570", "\u7cfb\u7edf\u4fe1\u606f\u51fd\u6570"], "commit_groups": [], "identity_text": "Make information_schema.schemata show all accessible schemas (Peter Eisentraut) Previously it only showed schemas owned by the current user.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/101", "db_id": "a1e247eed38fa99b63b18eb8d91cb212", "patch_ids": [], "statement_hash": "db1264117e55210780b87120b4b7f63aee5eca519e6044f4f9334135e87ac7e0", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-4cae88af306060f8", "migration": false}, {"id": "9.4.0-6f4fa3474888e2dc", "cves": [], "html": "

\u901a\u8fc7 FILTER \u5b50\u53e5\u63a7\u5236\u54ea\u4e9b\u884c\u88ab\u4f20\u9012\u7ed9\u805a\u96c6\u51fd\u6570\uff08David Fetter\uff09

", "text": "\u901a\u8fc7 FILTER \u5b50\u53e5\u63a7\u5236\u54ea\u4e9b\u884c\u88ab\u4f20\u9012\u7ed9\u805a\u96c6\u51fd\u6570\uff08David Fetter\uff09", "title": "\u901a\u8fc7 FILTER \u5b50\u53e5\u63a7\u5236\u54ea\u4e9b\u884c\u88ab\u4f20\u9012\u7ed9\u805a\u96c6\u51fd\u6570", "commits": [], "section": "\u51fd\u6570 / \u805a\u5408", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9.4", "source_hash": "60b9327318a6520aca80ebe660e65e6abc23fe6c532ef55b691e3891891e97e5", "section_path": ["\u51fd\u6570", "\u805a\u5408"], "commit_groups": [], "identity_text": "Add control over which rows are passed into aggregate functions via the FILTER clause (David Fetter)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/102", "db_id": "6177fad2f9762cc4db8d015dee61f685", "patch_ids": [], "statement_hash": "dd418aa1c2469092a39057f243180fac6e3f75750ddf857c3dc262442e6f197b", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-6f4fa3474888e2dc", "migration": false}, {"id": "9.4.0-189597fa868bfb30", "cves": [], "html": "

\u652f\u6301\u6709\u5e8f\u96c6\uff08WITHIN GROUP\uff09\u805a\u96c6\uff08Atri Sharma\u3001Andrew Gierth\u3001Tom Lane\uff09

", "text": "\u652f\u6301\u6709\u5e8f\u96c6\uff08WITHIN GROUP\uff09\u805a\u96c6\uff08Atri Sharma\u3001Andrew Gierth\u3001Tom Lane\uff09", "title": "\u652f\u6301\u6709\u5e8f\u96c6\uff08WITHIN GROUP\uff09\u805a\u96c6", "commits": [], "section": "\u51fd\u6570 / \u805a\u5408", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9.4", "source_hash": "9583c24056287c698bcc4480a9c61cef012061647a0b09a342233b2b41e3d845", "section_path": ["\u51fd\u6570", "\u805a\u5408"], "commit_groups": [], "identity_text": "Support ordered-set (WITHIN GROUP) aggregates (Atri Sharma, Andrew Gierth, Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/103", "db_id": "dcbb81a9b1f68b4d97be83e9af660b11", "patch_ids": [], "statement_hash": "d7b18af36efee53af1759257991e07415c00ca38c342f1ead6fe4f5b6abb99d7", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-189597fa868bfb30", "migration": false}, {"id": "9.4.0-923329fe162c85e4", "cves": [], "html": "

\u65b0\u589e\u6807\u51c6\u6709\u5e8f\u96c6\u805a\u96c6 percentile_cont()\u3001percentile_disc()\u3001mode()\u3001rank()\u3001dense_rank()\u3001percent_rank() \u548c cume_dist()\uff08Atri Sharma\u3001Andrew Gierth\uff09

", "text": "\u65b0\u589e\u6807\u51c6\u6709\u5e8f\u96c6\u805a\u96c6 percentile_cont()\u3001percentile_disc()\u3001mode()\u3001rank()\u3001dense_rank()\u3001percent_rank() \u548c cume_dist()\uff08Atri Sharma\u3001Andrew Gierth\uff09", "title": "\u65b0\u589e\u6807\u51c6\u6709\u5e8f\u96c6\u805a\u96c6 percentile_cont()\u3001percentile_disc()\u3001mode()\u3001rank()\u3001dense_rank()\u3001percent_rank() \u548c cume_dist()", "commits": [], "section": "\u51fd\u6570 / \u805a\u5408", "category": "feature", "source_url": "/docs/release/9.4.0/#id-1.11.6.31.5.9.4", "source_hash": "c48910e2a62311ca6cd36131b3d1d4988efff355c15927f4951c32a82dd2dfeb", "section_path": ["\u51fd\u6570", "\u805a\u5408"], "commit_groups": [], "identity_text": "Add standard ordered-set aggregates percentile_cont(), percentile_disc(), mode(), rank(), dense_rank(), percent_rank(), and cume_dist() (Atri Sharma, Andrew Gierth)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.4.0/changes/104", "db_id": "24e9cacfc9e86d5ca6beb29023469e01", "patch_ids": [], "statement_hash": "8078b102eadca22282d992e4e5def7888fb3bed82b663959b4397ba7c28577eb", "relations": [], "category_label": "\u65b0\u529f\u80fd", "url": "/docs/compare/?release=9.4.0#9.4.0-923329fe162c85e4", "migration": false}, {"id": "9.4.0-b170214d59335ac7", "cves": [], "html": "

\u652f\u6301 VARIADIC \u805a\u96c6\u51fd\u6570\uff08Tom Lane\uff09

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\n

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libpq \u63a5\u53d7 TLSv1 \u4e4b\u5916\u7684 TLS \u534f\u8bae\u7248\u672c\uff08Marko Kreen\uff09

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\n

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\n

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\n

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\u5728 \\conninfo \u4e2d\u663e\u793a SSL \u534f\u8bae\u7248\u672c\uff08Marko Kreen\uff09

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\u4e3a \\pset \u65b0\u589e Tab \u8865\u5168\uff08Pavel Stehule\uff09

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\n

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\n

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\n

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\n

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\u65b0\u589e\u5141\u8bb8\u8d85\u8fc7 1GB \u5185\u5b58\u5206\u914d\u7684 API\uff08Noah Misch\uff09

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\u7528 Perl \u91cd\u5199 duplicate_oids Unix shell \u811a\u672c\uff08Andrew Dunstan\uff09

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\n

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\u79fb\u9664 maintainer-check makefile \u89c4\u5219\uff08Peter Eisentraut\uff09

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Typically, the directory does not exist, but any local user could create it and inject configuration. This configuration can direct OpenSSL to load and execute arbitrary code as the user running a PostgreSQL server or client.\n\nMost PostgreSQL client tools and libraries use libpq , and one can encounter this vulnerability by using any of them. This vulnerability is much like CVE-2019-5443 , but it originated independently. One can work around the vulnerability by setting environment variable OPENSSL_CONF to \"NUL:/openssl.cnf\" or any other name that cannot exist as a file.\n\nThe PostgreSQL project thanks Daniel Gustafsson of the curl security team for reporting this problem.", "description_language": "en", "fixed": "9.4.24", "fixed_url": "/docs/compare/?release=9.4.24", "affected": "9.4", "component": "packaging", "mentions": [], "evidence": "branch-matrix"}, {"id": "CVE-2019-10210", "title": "Windows installer writes superuser password to unprotected temporary file", "url": "https://www.postgresql.org/support/security/CVE-2019-10210/", "score": 6.7, "vector": "AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "description": "The EnterpriseDB Windows installer writes a password to a temporary file in its installation directory, creates initial databases, and deletes the file. During those seconds while the file exists, a local attacker can read the PostgreSQL superuser password from the file.\n\nThe PostgreSQL project thanks Noah Misch for reporting this problem.", "description_language": "en", "fixed": "9.4.24", "fixed_url": "/docs/compare/?release=9.4.24", "affected": "9.4", "component": "packaging", "mentions": [], "evidence": "branch-matrix"}, {"id": "CVE-2019-10208", "title": "TYPE in pg_temp executes arbitrary SQL during SECURITY DEFINER execution", "url": "https://www.postgresql.org/support/security/CVE-2019-10208/", "score": 7.5, "vector": "AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "description": "Given a suitable SECURITY DEFINER function, an attacker can execute arbitrary SQL under the identity of the function owner. An attack requires EXECUTE permission on the function, which must itself contain a function call having inexact argument type match. 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If you have installed PostgreSQL on Windows using other methods, we advise that you check that your PostgreSQL binary directories are writable only to trusted users and that your data directories are only accessible to trusted users.\n\nThe PostgreSQL project thanks Conner Jones for reporting this problem.", "description_language": "en", "fixed": "9.4.22", "fixed_url": "/docs/compare/?release=9.4.22", "affected": "9.4", "component": "packaging", "mentions": [], "evidence": "branch-matrix"}, {"id": "CVE-2018-10915", "title": "Certain host connection parameters defeat client-side security defenses", "url": "https://www.postgresql.org/support/security/CVE-2018-10915/", "score": 8.5, "vector": "AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "description": "", "description_language": "en", "fixed": "9.4.19", "fixed_url": "/docs/compare/?release=9.4.19", "affected": "9.4", "component": "client", "mentions": [{"build": "9.4.19", "version": "9.4.19", "title": 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"title": "\u8fdb\u4e00\u6b65\u9650\u5236 pg_user_mappings.umoptions \u7684\u53ef\u89c1\u6027\uff0c\u4ee5\u4fdd\u62a4\u5b58\u50a8\u4e3a\u7528\u6237\u6620\u5c04\u9009\u9879\u7684\u5bc6\u7801", "url": "/docs/compare/?release=9.4.13#9.4.13-a79358365b635764"}, {"build": "9.4.12", "version": "9.4.12", "title": "\u9650\u5236pg_user_mappings.umoptions\u7684\u53ef\u89c1\u6027\uff0c\u4ee5\u4fdd\u62a4\u4f5c\u4e3a\u7528\u6237\u6620\u5c04\u9009\u9879\u5b58\u50a8\u7684\u5bc6\u7801", "url": "/docs/compare/?release=9.4.12#9.4.12-79d9b1a29aec7ea1"}], "evidence": "branch-matrix"}, {"id": "CVE-2017-7546", "title": "empty password accepted in some authentication methods", "url": "https://www.postgresql.org/support/security/CVE-2017-7546/", "score": 8.1, "vector": "AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "description": "", "description_language": "en", "fixed": "9.4.13", "fixed_url": "/docs/compare/?release=9.4.13", "affected": "9.4", "component": "core server", "mentions": [{"build": "9.4.13", "version": "9.4.13", "title": "\u7981\u6b62\u5728\u6240\u6709\u57fa\u4e8e\u5bc6\u7801\u7684\u8ba4\u8bc1\u65b9\u6cd5\u4e2d\u4f7f\u7528\u7a7a\u5bc6\u7801", "url": "/docs/compare/?release=9.4.13#9.4.13-49a2f6860ca3f76c"}], "evidence": "branch-matrix"}, {"id": "CVE-2017-7486", "title": "pg_user_mappings view discloses foreign server passwords", "url": "https://www.postgresql.org/support/security/CVE-2017-7486/", "score": 8.5, "vector": "AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "description": "", "description_language": "en", "fixed": "9.4.12", "fixed_url": "/docs/compare/?release=9.4.12", "affected": "9.4", "component": "core server", "mentions": [{"build": "9.4.13", "version": "9.4.13", "title": "\u8fdb\u4e00\u6b65\u9650\u5236 pg_user_mappings.umoptions \u7684\u53ef\u89c1\u6027\uff0c\u4ee5\u4fdd\u62a4\u5b58\u50a8\u4e3a\u7528\u6237\u6620\u5c04\u9009\u9879\u7684\u5bc6\u7801", "url": "/docs/compare/?release=9.4.13#9.4.13-a79358365b635764"}, {"build": "9.4.12", "version": "9.4.12", "title": 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