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rel=\"nofollow\"\u003eEXPLAIN\u003c/a\u003e.\u003c/p\u003e\n","SourceHash":"1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd","ContentHash":"676b2be6675733fb95dc943fa5f73e1861677b9361d4e8c9a139eb5f3a6b325b","Payload":{"description":"[EXPLAIN](https://www.postgresql.org/docs/13/sql-explain.html) can now track WAL usage information along with [auto_explain](https://www.postgresql.org/docs/13/auto-explain.html), [autovacuum](https://www.postgresql.org/docs/13/routine-vacuuming.html#AUTOVACUUM), and [pg_stat_statements](https://www.postgresql.org/docs/13/pgstatstatements.html).\r\n\r\nFor more information, please see the documentation on [EXPLAIN](https://www.postgresql.org/docs/13/sql-explain.html).","name":"EXPLAIN (WAL) support","versions":{"13":"Yes"}}},{"Locale":"zh-Hans","Title":"EXPLAIN (WAL) 支持","BodyHTML":"\u003cp\u003e\u003ca href=\"https://www.postgresql.org/docs/13/sql-explain.html\" rel=\"nofollow\"\u003eEXPLAIN\u003c/a\u003e 现在可以跟踪 WAL 使用信息，同时支持 \u003ca href=\"https://www.postgresql.org/docs/13/auto-explain.html\" rel=\"nofollow\"\u003eauto_explain\u003c/a\u003e、\u003ca href=\"https://www.postgresql.org/docs/13/routine-vacuuming.html#AUTOVACUUM\" rel=\"nofollow\"\u003eautovacuum\u003c/a\u003e 和 \u003ca href=\"https://www.postgresql.org/docs/13/pgstatstatements.html\" rel=\"nofollow\"\u003epg_stat_statements\u003c/a\u003e。\u003c/p\u003e\n\u003cp\u003e更多信息请参阅 \u003ca href=\"https://www.postgresql.org/docs/13/sql-explain.html\" rel=\"nofollow\"\u003eEXPLAIN\u003c/a\u003e 文档。\u003c/p\u003e\n","SourceHash":"071091951021357a5f492adb04caed6febf4d315ac2626ca027a48dd8ec01d50","ContentHash":"f653208cd466685fe5f1680cc15e91bd75bc156d5112e26b1f1f088aeeeb32fe","Payload":{"description":"[EXPLAIN](https://www.postgresql.org/docs/13/sql-explain.html) 现在可以跟踪 WAL 使用信息，同时支持 [auto_explain](https://www.postgresql.org/docs/13/auto-explain.html)、[autovacuum](https://www.postgresql.org/docs/13/routine-vacuuming.html#AUTOVACUUM) 和 [pg_stat_statements](https://www.postgresql.org/docs/13/pgstatstatements.html)。\n\n更多信息请参阅 [EXPLAIN](https://www.postgresql.org/docs/13/sql-explain.html) 文档。","name":"EXPLAIN (WAL) 支持"}}],"GroupTitles":{"en":"Backend","zh-Hans":"后端"},"LegacyIDs":["348"]},"Title":"EXPLAIN (WAL) 支持","TitleLocale":"zh-Hans","Group":"后端","GroupLocale":"zh-Hans","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=18","BodyLocale":"zh-Hans","MissingMessage":"","FallbackMessage":"","Body":{"Text":"","URL":"","Class":"","HTML":"\u003cp\u003e\u003ca href=\"https://www.postgresql.org/docs/13/sql-explain.html\" rel=\"nofollow\"\u003eEXPLAIN\u003c/a\u003e 现在可以跟踪 WAL 使用信息，同时支持 \u003ca href=\"https://www.postgresql.org/docs/13/auto-explain.html\" rel=\"nofollow\"\u003eauto_explain\u003c/a\u003e、\u003ca href=\"https://www.postgresql.org/docs/13/routine-vacuuming.html#AUTOVACUUM\" rel=\"nofollow\"\u003eautovacuum\u003c/a\u003e 和 \u003ca href=\"https://www.postgresql.org/docs/13/pgstatstatements.html\" 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文档。\u003c/p\u003e\n","Present":false},"Selected":{"Version":"18","State":"yes","EvidenceKind":"yaml-transition","TransitionVersion":"13","Supported":true,"Original":"Yes"},"Observed":true,"Cells":[{"Text":"未知","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=20","Class":"fm_unk","HTML":"","Present":false},{"Text":"未知","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=19","Class":"fm_unk","HTML":"","Present":false},{"Text":"支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=18","Class":"fm_yes","HTML":"","Present":true},{"Text":"支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=17","Class":"fm_yes","HTML":"","Present":true},{"Text":"支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=16","Class":"fm_yes","HTML":"","Present":true},{"Text":"支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=15","Class":"fm_yes","HTML":"","Present":true},{"Text":"支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=14","Class":"fm_yes","HTML":"","Present":true},{"Text":"支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=13","Class":"fm_yes","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=12","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=11","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=10","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=9.6","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=9.5","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=9.4","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=9.3","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=9.2","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=9.1","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=9.0","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=8.4","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=8.3","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=8.2","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=8.1","Class":"fm_no","HTML":"","Present":true},{"Text":"未知","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=8.0","Class":"fm_unk","HTML":"","Present":false},{"Text":"未知","URL":"/zh/wiki/versions/capabilities/explain-wal-support/?v=7.4","Class":"fm_unk","HTML":"","Present":false}],"Sources":null,"JSON":"{\n 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href=\\\"https://www.postgresql.org/docs/13/auto-explain.html\\\" rel=\\\"nofollow\\\"\\u003eauto_explain\\u003c/a\\u003e, \\u003ca href=\\\"https://www.postgresql.org/docs/13/routine-vacuuming.html#AUTOVACUUM\\\" rel=\\\"nofollow\\\"\\u003eautovacuum\\u003c/a\\u003e, and \\u003ca href=\\\"https://www.postgresql.org/docs/13/pgstatstatements.html\\\" rel=\\\"nofollow\\\"\\u003epg_stat_statements\\u003c/a\\u003e.\\u003c/p\\u003e\\n\\u003cp\\u003eFor more information, please see the documentation on \\u003ca href=\\\"https://www.postgresql.org/docs/13/sql-explain.html\\\" rel=\\\"nofollow\\\"\\u003eEXPLAIN\\u003c/a\\u003e.\\u003c/p\\u003e\\n\",\n \"SourceHash\": \"1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd\",\n \"ContentHash\": \"676b2be6675733fb95dc943fa5f73e1861677b9361d4e8c9a139eb5f3a6b325b\",\n \"Payload\": {\n \"description\": \"[EXPLAIN](https://www.postgresql.org/docs/13/sql-explain.html) can now track WAL usage information along with 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This behavior can be forced on a query by using the \u0026#34;NOT MATERIALIZED\u0026#34; clause, e.g.\u003c/p\u003e\n\u003cpre\u003e\u003ccode\u003eWITH cte AS NOT MATERIALIZED (\n SELECT * FROM a\n)\nSELECT * FROM cte\nJOIN b ON b.id = cte.id;\n\u003c/code\u003e\u003c/pre\u003e\n\u003cp\u003eFor more information, please visit \u003ca href=\"https://www.postgresql.org/docs/12/queries-with.html\" rel=\"nofollow\"\u003ehttps://www.postgresql.org/docs/12/queries-with.html\u003c/a\u003e\u003c/p\u003e\n","SourceHash":"1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd","ContentHash":"70fb334a930fc85c35a7ee7ab8c135d7c2bffeb26fd3c1f2e1d4ddd5a863fb30","Payload":{"description":"A WITH query that is neither recursive nor has any side-effects (e.g. an INSERT/UPDATE/DELETE) can be executed inline, which can lead to performance improvements. This behavior can be forced on a query by using the \"NOT MATERIALIZED\" clause, e.g.\r\n\r\n```\r\nWITH cte AS NOT MATERIALIZED (\r\n SELECT * FROM a\r\n)\r\nSELECT * FROM cte\r\nJOIN b ON b.id = cte.id;\r\n```\r\n\r\nFor more information, please visit [https://www.postgresql.org/docs/12/queries-with.html](https://www.postgresql.org/docs/12/queries-with.html)","name":"Inlined WITH Queries (Common Table Expressions)","versions":{"12":"Yes"}}},{"Locale":"zh-Hans","Title":"内联 WITH 查询 (公用表表达式)","BodyHTML":"\u003cp\u003e既非递归也没有任何副作用（例如 INSERT/UPDATE/DELETE）的 WITH 查询可以内联执行，从而带来性能改进。可以通过使用 \u0026#34;NOT MATERIALIZED\u0026#34; 子句强制对查询执行此行为，例如：\u003c/p\u003e\n\u003cpre\u003e\u003ccode\u003eWITH cte AS NOT MATERIALIZED (\n SELECT * FROM a\n)\nSELECT * FROM cte\nJOIN b ON b.id = cte.id;\n\u003c/code\u003e\u003c/pre\u003e\n\u003cp\u003e更多信息请访问 \u003ca href=\"https://www.postgresql.org/docs/12/queries-with.html\" rel=\"nofollow\"\u003ehttps://www.postgresql.org/docs/12/queries-with.html\u003c/a\u003e\u003c/p\u003e\n","SourceHash":"071091951021357a5f492adb04caed6febf4d315ac2626ca027a48dd8ec01d50","ContentHash":"79b15445a9e0098c663415436419f09c9c2aa59a1307ab0548f1bb152d9e985c","Payload":{"description":"既非递归也没有任何副作用（例如 INSERT/UPDATE/DELETE）的 WITH 查询可以内联执行，从而带来性能改进。可以通过使用 \"NOT MATERIALIZED\" 子句强制对查询执行此行为，例如：\n\n```\nWITH cte AS NOT MATERIALIZED (\n SELECT * FROM a\n)\nSELECT * FROM cte\nJOIN b ON b.id = cte.id;\n```\n\n更多信息请访问 [https://www.postgresql.org/docs/12/queries-with.html](https://www.postgresql.org/docs/12/queries-with.html)","name":"内联 WITH 查询 (公用表表达式)"}}],"GroupTitles":{"en":"Performance","zh-Hans":"性能"},"LegacyIDs":["321"]},"Title":"内联 WITH 查询 (公用表表达式)","TitleLocale":"zh-Hans","Group":"性能","GroupLocale":"zh-Hans","URL":"/zh/wiki/versions/capabilities/inlined-with-queries-common-table-expressions/?v=18","BodyLocale":"zh-Hans","MissingMessage":"","FallbackMessage":"","Body":{"Text":"","URL":"","Class":"","HTML":"\u003cp\u003e既非递归也没有任何副作用（例如 INSERT/UPDATE/DELETE）的 WITH 查询可以内联执行，从而带来性能改进。可以通过使用 \u0026#34;NOT MATERIALIZED\u0026#34; 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This behavior can be forced on a query by using the \\u0026#34;NOT MATERIALIZED\\u0026#34; clause, e.g.\\u003c/p\\u003e\\n\\u003cpre\\u003e\\u003ccode\\u003eWITH cte AS NOT MATERIALIZED (\\n SELECT * FROM a\\n)\\nSELECT * FROM cte\\nJOIN b ON b.id = cte.id;\\n\\u003c/code\\u003e\\u003c/pre\\u003e\\n\\u003cp\\u003eFor more information, please visit \\u003ca href=\\\"https://www.postgresql.org/docs/12/queries-with.html\\\" rel=\\\"nofollow\\\"\\u003ehttps://www.postgresql.org/docs/12/queries-with.html\\u003c/a\\u003e\\u003c/p\\u003e\\n\",\n \"SourceHash\": \"1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd\",\n \"ContentHash\": \"70fb334a930fc85c35a7ee7ab8c135d7c2bffeb26fd3c1f2e1d4ddd5a863fb30\",\n \"Payload\": {\n \"description\": \"A WITH query that is neither recursive nor has any side-effects (e.g. an INSERT/UPDATE/DELETE) can be executed inline, which can lead to performance improvements. 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href=\\\"https://www.postgresql.org/docs/12/queries-with.html\\\" rel=\\\"nofollow\\\"\\u003ehttps://www.postgresql.org/docs/12/queries-with.html\\u003c/a\\u003e\\u003c/p\\u003e\\n\",\n \"SourceHash\": \"071091951021357a5f492adb04caed6febf4d315ac2626ca027a48dd8ec01d50\",\n \"ContentHash\": \"79b15445a9e0098c663415436419f09c9c2aa59a1307ab0548f1bb152d9e985c\",\n \"Payload\": {\n \"description\": \"既非递归也没有任何副作用（例如 INSERT/UPDATE/DELETE）的 WITH 查询可以内联执行，从而带来性能改进。可以通过使用 \\\"NOT MATERIALIZED\\\" 子句强制对查询执行此行为，例如：\\n\\n```\\nWITH cte AS NOT MATERIALIZED (\\n SELECT * FROM a\\n)\\nSELECT * FROM cte\\nJOIN b ON b.id = cte.id;\\n```\\n\\n更多信息请访问 [https://www.postgresql.org/docs/12/queries-with.html](https://www.postgresql.org/docs/12/queries-with.html)\",\n \"name\": \"内联 WITH 查询 (公用表表达式)\"\n }\n }\n ],\n \"GroupTitles\": {\n \"en\": \"Performance\",\n \"zh-Hans\": \"性能\"\n },\n \"LegacyIDs\": [\n \"321\"\n 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authentication with postgres_fdw","BodyHTML":"\u003cp\u003eThe \u003ca href=\"https://www.postgresql.org/docs/13/postgres-fdw.html\" rel=\"nofollow\"\u003epostgres_fdw\u003c/a\u003e can now use the built-in \u003ca href=\"https://www.postgresql.org/docs/current/auth-cert.html\" rel=\"nofollow\"\u003ecertificate authentication\u003c/a\u003e mechanism.\u003c/p\u003e\n\u003cp\u003eFor more information, please visit the \u003ca href=\"https://www.postgresql.org/docs/13/postgres-fdw.html#id-1.11.7.42.10\" rel=\"nofollow\"\u003epostgres_fdw documentation\u003c/a\u003e\u003c/p\u003e\n","SourceHash":"1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd","ContentHash":"264a91ab3dbecd8e066d9443e5170a4bc203d8bd98257fbf4737171ecee1eec8","Payload":{"description":"The [postgres_fdw](https://www.postgresql.org/docs/13/postgres-fdw.html) can now use the built-in [certificate authentication](https://www.postgresql.org/docs/current/auth-cert.html) mechanism.\r\n\r\nFor more information, please visit the [postgres_fdw documentation](https://www.postgresql.org/docs/13/postgres-fdw.html#id-1.11.7.42.10)","name":"Certificate authentication with postgres_fdw","versions":{"13":"Yes"}}},{"Locale":"zh-Hans","Title":"postgres_fdw 的证书身份验证","BodyHTML":"\u003cp\u003e\u003ca href=\"https://www.postgresql.org/docs/13/postgres-fdw.html\" rel=\"nofollow\"\u003epostgres_fdw\u003c/a\u003e 现在可以使用内置的 \u003ca href=\"https://www.postgresql.org/docs/current/auth-cert.html\" rel=\"nofollow\"\u003e证书身份验证\u003c/a\u003e 机制。\u003c/p\u003e\n\u003cp\u003e更多信息请访问 \u003ca href=\"https://www.postgresql.org/docs/13/postgres-fdw.html#id-1.11.7.42.10\" rel=\"nofollow\"\u003epostgres_fdw 文档\u003c/a\u003e\u003c/p\u003e\n","SourceHash":"071091951021357a5f492adb04caed6febf4d315ac2626ca027a48dd8ec01d50","ContentHash":"293595a94430deb5e058c9a1848c8d3be60947ef1d8934228cb4329746ed26c9","Payload":{"description":"[postgres_fdw](https://www.postgresql.org/docs/13/postgres-fdw.html) 现在可以使用内置的 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pipeline queries","BodyHTML":"\u003cp\u003epsql can issue pipeline queries using the commands \u003ca href=\"https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE\" rel=\"nofollow\"\u003e\u003ccode\u003e\\startpipeline\u003c/code\u003e\u003c/a\u003e, \u003ca href=\"https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE\" rel=\"nofollow\"\u003e\u003ccode\u003e\\syncpipeline\u003c/code\u003e\u003c/a\u003e, \u003ca href=\"https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE\" rel=\"nofollow\"\u003e\u003ccode\u003e\\sendpipeline\u003c/code\u003e\u003c/a\u003e, \u003ca href=\"https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE\" rel=\"nofollow\"\u003e\u003ccode\u003e\\endpipeline\u003c/code\u003e\u003c/a\u003e, \u003ca href=\"https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE\" rel=\"nofollow\"\u003e\u003ccode\u003e\\flushrequest\u003c/code\u003e\u003c/a\u003e, \u003ca href=\"https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE\" rel=\"nofollow\"\u003e\u003ccode\u003e\\flush\u003c/code\u003e\u003c/a\u003e, and \u003ca href=\"https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE\" rel=\"nofollow\"\u003e\u003ccode\u003e\\getresults\u003c/code\u003e\u003c/a\u003e.\u003c/p\u003e\n","SourceHash":"1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd","ContentHash":"f75bab2edd9ee2fe1214a628b276fdd93fcbad0abe73429acf76870ea6d4c4e1","Payload":{"description":"psql can issue pipeline queries using the commands [`\\startpipeline`](https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE), [`\\syncpipeline`](https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE), [`\\sendpipeline`](https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE), [`\\endpipeline`](https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE), [`\\flushrequest`](https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE), [`\\flush`](https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE), and [`\\getresults`](https://www.postgresql.org/docs/18/app-psql.html#APP-PSQL-META-COMMAND-PIPELINE).","name":"psql pipeline queries","versions":{"18":"Yes"}}},{"Locale":"zh-Hans","Title":"psql 流水线查询","BodyHTML":"\u003cp\u003e\u003ccode\u003epsql\u003c/code\u003e 现在可以通过 \u003ccode\u003e\\startpipeline\u003c/code\u003e、\u003ccode\u003e\\syncpipeline\u003c/code\u003e 和 \u003ccode\u003e\\endpipeline\u003c/code\u003e 等命令发出流水线查询。\u003c/p\u003e\n","SourceHash":"071091951021357a5f492adb04caed6febf4d315ac2626ca027a48dd8ec01d50","ContentHash":"c09fa4ed92f585161cc517e5eb85079810124313cdd0b340f7f31e7acc94607b","Payload":{"description":"`psql` 现在可以通过 `\\startpipeline`、`\\syncpipeline` 和 `\\endpipeline` 等命令发出流水线查询。","name":"psql 流水线查询"}}],"GroupTitles":{"en":"Client Applications","zh-Hans":"客户端应用"}},"Title":"psql 流水线查询","TitleLocale":"zh-Hans","Group":"客户端应用","GroupLocale":"zh-Hans","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=18","BodyLocale":"zh-Hans","MissingMessage":"","FallbackMessage":"","Body":{"Text":"","URL":"","Class":"","HTML":"\u003cp\u003e\u003ccode\u003epsql\u003c/code\u003e 现在可以通过 \u003ccode\u003e\\startpipeline\u003c/code\u003e、\u003ccode\u003e\\syncpipeline\u003c/code\u003e 和 \u003ccode\u003e\\endpipeline\u003c/code\u003e 等命令发出流水线查询。\u003c/p\u003e\n","Present":false},"Selected":{"Version":"18","State":"yes","EvidenceKind":"yaml-transition","TransitionVersion":"18","Supported":true,"Original":"Yes"},"Observed":true,"Cells":[{"Text":"未知","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=20","Class":"fm_unk","HTML":"","Present":false},{"Text":"未知","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=19","Class":"fm_unk","HTML":"","Present":false},{"Text":"支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=18","Class":"fm_yes","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=17","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=16","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=15","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=14","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=13","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=12","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=11","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=10","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=9.6","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=9.5","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=9.4","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=9.3","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=9.2","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=9.1","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=9.0","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=8.4","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=8.3","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=8.2","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=8.1","Class":"fm_no","HTML":"","Present":true},{"Text":"未知","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=8.0","Class":"fm_unk","HTML":"","Present":false},{"Text":"未知","URL":"/zh/wiki/versions/capabilities/psql-pipeline-queries/?v=7.4","Class":"fm_unk","HTML":"","Present":false}],"Sources":null,"JSON":"{\n 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\"State\": \"no\",\n \"EvidenceKind\": \"legacy-database:v82\",\n \"TransitionVersion\": \"\",\n \"Supported\": false,\n \"Original\": 0\n },\n {\n \"Version\": \"8.3\",\n \"State\": \"no\",\n \"EvidenceKind\": \"legacy-database:v83\",\n \"TransitionVersion\": \"\",\n \"Supported\": false,\n \"Original\": 0\n },\n {\n \"Version\": \"8.4\",\n \"State\": \"no\",\n \"EvidenceKind\": \"legacy-database:v84\",\n \"TransitionVersion\": \"\",\n \"Supported\": false,\n \"Original\": 0\n },\n {\n \"Version\": \"9.0\",\n \"State\": \"no\",\n \"EvidenceKind\": \"legacy-database:v90\",\n \"TransitionVersion\": \"\",\n \"Supported\": false,\n \"Original\": 0\n },\n {\n \"Version\": \"9.1\",\n \"State\": \"no\",\n \"EvidenceKind\": \"legacy-database:v91\",\n \"TransitionVersion\": \"\",\n \"Supported\": false,\n \"Original\": 0\n },\n {\n \"Version\": \"9.2\",\n \"State\": \"no\",\n \"EvidenceKind\": \"legacy-database:v92\",\n \"TransitionVersion\": \"\",\n \"Supported\": false,\n \"Original\": 0\n },\n {\n \"Version\": \"9.3\",\n \"State\": \"no\",\n \"EvidenceKind\": \"legacy-database:v93\",\n \"TransitionVersion\": \"\",\n \"Supported\": false,\n \"Original\": 0\n },\n {\n \"Version\": \"9.4\",\n \"State\": \"no\",\n \"EvidenceKind\": \"legacy-database:v94\",\n \"TransitionVersion\": \"\",\n \"Supported\": false,\n \"Original\": 0\n },\n {\n \"Version\": \"9.5\",\n \"State\": \"no\",\n \"EvidenceKind\": \"legacy-database:v95\",\n \"TransitionVersion\": \"\",\n \"Supported\": false,\n \"Original\": 0\n },\n {\n \"Version\": \"9.6\",\n \"State\": \"no\",\n \"EvidenceKind\": \"legacy-database:v96\",\n \"TransitionVersion\": \"\",\n \"Supported\": false,\n \"Original\": 0\n }\n ],\n \"Texts\": [\n {\n \"Locale\": \"zh-Hans\",\n \"Title\": \"加速分区裁剪\",\n \"BodyHTML\": \"\\u003cp\\u003e当仅需要访问有限的分区子集时，针对具有数千个分区的表的查询性能改进。\\u003c/p\\u003e\\n\",\n \"SourceHash\": \"2c5cc173ffeee90fe5fd6e36fa4a92ad19a82efcfdd29a886f9f6e86e2190dda\",\n \"ContentHash\": 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[https://www.postgresql.org/docs/12/queries-with.html](https://www.postgresql.org/docs/12/queries-with.html)","featurename":"内联 WITH 查询 (公用表表达式)","group_id":1,"id":321,"v10":0,"v11":0,"v12":1,"v13":1,"v14":0,"v15":0,"v16":0,"v17":0,"v18":0,"v74":0,"v80":0,"v81":0,"v82":0,"v83":0,"v84":0,"v90":0,"v91":0,"v92":0,"v93":0,"v94":0,"v95":0,"v96":0},"Cells":[{"Version":"10","State":"no","EvidenceKind":"legacy-database:v10","TransitionVersion":"","Supported":false,"Original":0},{"Version":"11","State":"no","EvidenceKind":"legacy-database:v11","TransitionVersion":"","Supported":false,"Original":0},{"Version":"12","State":"yes","EvidenceKind":"legacy-database:v12","TransitionVersion":"","Supported":true,"Original":1},{"Version":"13","State":"yes","EvidenceKind":"legacy-database:v13","TransitionVersion":"","Supported":true,"Original":1},{"Version":"14","State":"no","EvidenceKind":"legacy-database:v14","TransitionVersion":"","Supported":false,"Original":0},{"Version":"15","State":"no","EvidenceKind":"legacy-database:v15","TransitionVersion":"","Supported":false,"Original":0},{"Version":"16","State":"no","EvidenceKind":"legacy-database:v16","TransitionVersion":"","Supported":false,"Original":0},{"Version":"17","State":"no","EvidenceKind":"legacy-database:v17","TransitionVersion":"","Supported":false,"Original":0},{"Version":"18","State":"no","EvidenceKind":"legacy-database:v18","TransitionVersion":"","Supported":false,"Original":0},{"Version":"7.4","State":"no","EvidenceKind":"legacy-database:v74","TransitionVersion":"","Supported":false,"Original":0},{"Version":"8.0","State":"no","EvidenceKind":"legacy-database:v80","TransitionVersion":"","Supported":false,"Original":0},{"Version":"8.1","State":"no","EvidenceKind":"legacy-database:v81","TransitionVersion":"","Supported":false,"Original":0},{"Version":"8.2","State":"no","EvidenceKind":"legacy-database:v82","TransitionVersion":"","Supported":false,"Original":0},{"Version":"8.3","State":"no","EvidenceKind":"legacy-database:v83","TransitionVersion":"","Supported":false,"Original":0},{"Version":"8.4","State":"no","EvidenceKind":"legacy-database:v84","TransitionVersion":"","Supported":false,"Original":0},{"Version":"9.0","State":"no","EvidenceKind":"legacy-database:v90","TransitionVersion":"","Supported":false,"Original":0},{"Version":"9.1","State":"no","EvidenceKind":"legacy-database:v91","TransitionVersion":"","Supported":false,"Original":0},{"Version":"9.2","State":"no","EvidenceKind":"legacy-database:v92","TransitionVersion":"","Supported":false,"Original":0},{"Version":"9.3","State":"no","EvidenceKind":"legacy-database:v93","TransitionVersion":"","Supported":false,"Original":0},{"Version":"9.4","State":"no","EvidenceKind":"legacy-database:v94","TransitionVersion":"","Supported":false,"Original":0},{"Version":"9.5","State":"no","EvidenceKind":"legacy-database:v95","TransitionVersion":"","Supported":false,"Original":0},{"Version":"9.6","State":"no","EvidenceKind":"legacy-database:v96","TransitionVersion":"","Supported":false,"Original":0}],"Texts":[{"Locale":"zh-Hans","Title":"内联 WITH 查询 (公用表表达式)","BodyHTML":"\u003cp\u003e既非递归也没有任何副作用（例如 INSERT/UPDATE/DELETE）的 WITH 查询可以内联执行，从而带来性能改进。可以通过使用 \u0026#34;NOT MATERIALIZED\u0026#34; 子句强制对查询执行此行为，例如：\u003c/p\u003e\n\u003cpre\u003e\u003ccode\u003eWITH cte AS NOT MATERIALIZED (\n SELECT * FROM a\n)\nSELECT * FROM cte\nJOIN b ON b.id = cte.id;\n\u003c/code\u003e\u003c/pre\u003e\n\u003cp\u003e更多信息请访问 \u003ca href=\"https://www.postgresql.org/docs/12/queries-with.html\" rel=\"nofollow\"\u003ehttps://www.postgresql.org/docs/12/queries-with.html\u003c/a\u003e\u003c/p\u003e\n","SourceHash":"a530e9d8fdd236976d54f98edbdcf39f8e14bd31bc2bb6162cd872d2a22f3e1a","ContentHash":"79b15445a9e0098c663415436419f09c9c2aa59a1307ab0548f1bb152d9e985c","Payload":{"description":"既非递归也没有任何副作用（例如 INSERT/UPDATE/DELETE）的 WITH 查询可以内联执行，从而带来性能改进。可以通过使用 \"NOT MATERIALIZED\" 子句强制对查询执行此行为，例如：\n\n```\nWITH cte AS NOT MATERIALIZED (\n SELECT * FROM a\n)\nSELECT * FROM cte\nJOIN b ON b.id = cte.id;\n```\n\n更多信息请访问 [https://www.postgresql.org/docs/12/queries-with.html](https://www.postgresql.org/docs/12/queries-with.html)","name":"内联 WITH 查询 (公用表表达式)"}}],"GroupTitles":{"zh-Hans":"性能"},"RelatedKey":"inlined-with-queries-common-table-expressions"},"Title":"内联 WITH 查询 (公用表表达式)","TitleLocale":"zh-Hans","Group":"性能","GroupLocale":"zh-Hans","URL":"/zh/wiki/versions/capabilities/321/?v=18","BodyLocale":"zh-Hans","MissingMessage":"","FallbackMessage":"","Body":{"Text":"","URL":"","Class":"","HTML":"\u003cp\u003e既非递归也没有任何副作用（例如 INSERT/UPDATE/DELETE）的 WITH 查询可以内联执行，从而带来性能改进。可以通过使用 \u0026#34;NOT MATERIALIZED\u0026#34; 子句强制对查询执行此行为，例如：\u003c/p\u003e\n\u003cpre\u003e\u003ccode\u003eWITH cte AS NOT MATERIALIZED (\n SELECT * FROM a\n)\nSELECT * FROM cte\nJOIN b ON b.id = cte.id;\n\u003c/code\u003e\u003c/pre\u003e\n\u003cp\u003e更多信息请访问 \u003ca href=\"https://www.postgresql.org/docs/12/queries-with.html\" rel=\"nofollow\"\u003ehttps://www.postgresql.org/docs/12/queries-with.html\u003c/a\u003e\u003c/p\u003e\n","Present":false},"Selected":{"Version":"18","State":"no","EvidenceKind":"legacy-database:v18","TransitionVersion":"","Supported":false,"Original":0},"Observed":true,"Cells":[{"Text":"未知","URL":"/zh/wiki/versions/capabilities/321/?v=20","Class":"fm_unk","HTML":"","Present":false},{"Text":"未知","URL":"/zh/wiki/versions/capabilities/321/?v=19","Class":"fm_unk","HTML":"","Present":false},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=18","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=17","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=16","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=15","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=14","Class":"fm_no","HTML":"","Present":true},{"Text":"支持","URL":"/zh/wiki/versions/capabilities/321/?v=13","Class":"fm_yes","HTML":"","Present":true},{"Text":"支持","URL":"/zh/wiki/versions/capabilities/321/?v=12","Class":"fm_yes","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=11","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=10","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=9.6","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=9.5","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=9.4","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=9.3","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=9.2","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=9.1","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=9.0","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=8.4","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=8.3","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=8.2","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=8.1","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=8.0","Class":"fm_no","HTML":"","Present":true},{"Text":"不支持","URL":"/zh/wiki/versions/capabilities/321/?v=7.4","Class":"fm_no","HTML":"","Present":true}],"Sources":null,"JSON":"{\n 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