{"Entry":{"collection":"func","key":"pg-jit-available","name":"pg_jit_available","aliases":[],"metadata":{"changed_in":[],"changes":[{"descriptions_changed":false,"doc_overhaul":false,"from":"10","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"added","to":"11"},{"descriptions_changed":true,"doc_overhaul":false,"from":"11","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"12"},{"descriptions_changed":false,"doc_overhaul":true,"from":"12","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"13"},{"descriptions_changed":true,"doc_overhaul":false,"from":"13","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"14"},{"descriptions_changed":true,"doc_overhaul":false,"from":"16","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"17"}],"content_hash":"246c58b6b4a0226184473acd98b14ef81cdbbc844e3c5235d53e19779cef3653","derived_content_hash":"1636f23c89f6675718f187f8bf22e94d4a2b04b01833a5fdfc29d809ada1ba81","documentation_refresh":{"batch":"20261113","original_source_rev":"wiki-repair-20261023:f3ec5c4f8123cb376046e62e6f63bc8acbcd92624fbfe258285513c0ce179ffa","versions":{"14":"14.25","15":"15.20","16":"16.16","17":"17.12","18":"18.7","19":"19rc2"}},"first_version":"11","group":"info","group_label":"System Information Functions And Operators","groups":["info"],"imported_at":"2026-09-27T17:57:29.261195+08:00","last_version":"20","name":"pg_jit_available","name_key":"pg_jit_available","position":28087,"present_in":["11","12","13","14","15","16","17","18","19","20"],"repair_provenance":{"original_source_revision":"b7bd9cda","receipt_sha256":"2950703bdc3ad385aa5c65e1dcf51ba29685f1766d53a5bf3af200d34d0e6e4e","repair":"wiki-repair-20261023"},"signature":"pg_jit_available () → boolean","signature_count":1,"slug":"pg-jit-available","source_rev":"wiki-repair-20261023:f3ec5c4f8123cb376046e62e6f63bc8acbcd92624fbfe258285513c0ce179ffa","summary":"Returns true if a JIT compiler extension is available (see Chapter 30) and the jit configuration parameter is set to on.","summary_zh":""}},"Definition":{"Collection":"func","Key":"pg-jit-available","SourceDatabase":"center","Version":"18","SourceTable":"func","SourceKey":"pg-jit-available","SourceRevision":"wiki-repair-20261023:f3ec5c4f8123cb376046e62e6f63bc8acbcd92624fbfe258285513c0ce179ffa","Facts":{"description":"Returns true if a JIT compiler extension is available (see Chapter 30) and the jit configuration parameter is set to on.","description_html":"Returns true if a JIT compiler extension is available (see \u003ca href=\"/docs/18/jit.html\" title=\"Chapter 30. Just-in-Time Compilation (JIT)\"\u003eChapter 30\u003c/a\u003e) and the \u003ca href=\"/docs/18/runtime-config-query.html#GUC-JIT\"\u003ejit\u003c/a\u003e configuration parameter is set to \u003ccode class=\"literal\"\u003eon\u003c/code\u003e.","description_zh":"如果 JIT 编译器扩展可用（参见第 30 章），并且 jit 配置参数设置为 on，则返回真。","description_zh_html":"如果 JIT 编译器扩展可用（参见\u003ca href=\"/docs/18/jit.html\" title=\"第 30 章 即时编译（JIT）\"\u003e第 30 章\u003c/a\u003e），并且 \u003ca href=\"/docs/18/runtime-config-query.html#GUC-JIT\"\u003ejit\u003c/a\u003e 配置参数设置为 \u003ccode class=\"literal\"\u003eon\u003c/code\u003e，则返回真。","doc":{"anchor":"FUNCTIONS-INFO-SESSION-TABLE","file":"functions-info.html","sha256":"64499116227a087138bb14f29ff6652b200a176d5df3ce2a089c3d5c226b19b3","slug":"18"},"documentation_revision":{"inputs":[{"file":"functions-info.html","kind":"same-version-reviewed-manual","locale":"en","sha256":"64499116227a087138bb14f29ff6652b200a176d5df3ce2a089c3d5c226b19b3","version":"18.7"},{"file":"functions-info.html","kind":"same-version-reviewed-manual","locale":"zh-Hans","sha256":"f9684137c0b9fb17a691c4d905529d114472a507a007c15058f2703962b611d2","version":"18.7"}],"release":"18.7","runtime_remeasured":false,"source_revision":"pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552"},"group":"info","group_label":"系统信息函数和操作符","lang":"en","layout":"table-new","pages":["functions-info.html"],"prose_only":false,"signatures":[{"description":"Returns true if a JIT compiler extension is available (see Chapter 30) and the jit configuration parameter is set to on.","description_html":"Returns true if a JIT compiler extension is available (see \u003ca href=\"/docs/18/jit.html\" title=\"Chapter 30. Just-in-Time Compilation (JIT)\"\u003eChapter 30\u003c/a\u003e) and the \u003ca href=\"/docs/18/runtime-config-query.html#GUC-JIT\"\u003ejit\u003c/a\u003e configuration parameter is set to \u003ccode class=\"literal\"\u003eon\u003c/code\u003e.","description_zh":"如果 JIT 编译器扩展可用（参见第 30 章），并且 jit 配置参数设置为 on，则返回真。","description_zh_html":"如果 JIT 编译器扩展可用（参见\u003ca href=\"/docs/18/jit.html\" title=\"第 30 章 即时编译（JIT）\"\u003e第 30 章\u003c/a\u003e），并且 \u003ca href=\"/docs/18/runtime-config-query.html#GUC-JIT\"\u003ejit\u003c/a\u003e 配置参数设置为 \u003ccode class=\"literal\"\u003eon\u003c/code\u003e，则返回真。","examples":[],"html":"\u003ccode class=\"function\"\u003epg_jit_available\u003c/code\u003e () → \u003ccode class=\"returnvalue\"\u003eboolean\u003c/code\u003e","returns":"boolean","text":"pg_jit_available () → boolean","zh_from":"same-version-manual"}],"translation_provenance":{"inputs":[{"kind":"current-pgdoc-translation","path":"/Users/vonng/pgsty/pgdoc/zh/18/html/functions-info.html","sha256":"7c33185e79430cfbda432dc4db277115c7ac846afccadfcf904ceb1bf2aa1ba5"}],"kind":"same-version-pgdoc","locale":"zh-Hans","source_revision":"b1b500221dbe5437cfca004d6b04d3f6e422765d","version":"18"},"zh_from":"same-version-manual"},"ManualEvidence":{"doc":{"anchor":"FUNCTIONS-INFO-SESSION-TABLE","file":"functions-info.html","sha256":"64499116227a087138bb14f29ff6652b200a176d5df3ce2a089c3d5c226b19b3","slug":"18"}},"MeasuredEvidence":{}},"Text":{"Collection":"func","Key":"pg-jit-available","SourceDatabase":"center","Version":"18","Locale":"en","Title":"pg_jit_available","Summary":"Returns true if a JIT compiler extension is available (see Chapter 30) and the jit configuration parameter is set to on.","BodyHTML":"Returns true if a JIT compiler extension is available (see \u003ca href=\"/docs/18/jit.html\" rel=\"nofollow\"\u003eChapter 30\u003c/a\u003e) and the \u003ca href=\"/docs/18/runtime-config-query.html#GUC-JIT\" rel=\"nofollow\"\u003ejit\u003c/a\u003e configuration parameter is set to \u003ccode\u003eon\u003c/code\u003e.","SourceRevision":"wiki-repair-20261023:f3ec5c4f8123cb376046e62e6f63bc8acbcd92624fbfe258285513c0ce179ffa","ContentHash":"3a48fca1c4e04d5d5d2c699d5709baddf284b8e7dfb69701e3d64a845e8df5b8","Payload":{"description":"Returns true if a JIT compiler extension is available (see Chapter 30) and the jit configuration parameter is set to on.","description_html":"Returns true if a JIT compiler extension is available (see \u003ca href=\"/docs/18/jit.html\" title=\"Chapter 30. Just-in-Time Compilation (JIT)\"\u003eChapter 30\u003c/a\u003e) and the \u003ca href=\"/docs/18/runtime-config-query.html#GUC-JIT\"\u003ejit\u003c/a\u003e configuration parameter is set to \u003ccode class=\"literal\"\u003eon\u003c/code\u003e.","signatures":[{"description":"Returns true if a JIT compiler extension is available (see Chapter 30) and the jit configuration parameter is set to on.","description_html":"Returns true if a JIT compiler extension is available (see \u003ca href=\"/docs/18/jit.html\" title=\"Chapter 30. Just-in-Time Compilation (JIT)\"\u003eChapter 30\u003c/a\u003e) and the \u003ca href=\"/docs/18/runtime-config-query.html#GUC-JIT\"\u003ejit\u003c/a\u003e configuration parameter is set to \u003ccode class=\"literal\"\u003eon\u003c/code\u003e.","description_zh":"如果 JIT 编译器扩展可用（参见第 30 章），并且 jit 配置参数设置为 on，则返回真。","description_zh_html":"如果 JIT 编译器扩展可用（参见\u003ca href=\"/docs/18/jit.html\" title=\"第 30 章 即时编译（JIT）\"\u003e第 30 章\u003c/a\u003e），并且 \u003ca href=\"/docs/18/runtime-config-query.html#GUC-JIT\"\u003ejit\u003c/a\u003e 配置参数设置为 \u003ccode class=\"literal\"\u003eon\u003c/code\u003e，则返回真。","examples":[],"html":"\u003ccode class=\"function\"\u003epg_jit_available\u003c/code\u003e () → \u003ccode class=\"returnvalue\"\u003eboolean\u003c/code\u003e","returns":"boolean","text":"pg_jit_available () → boolean","zh_from":"same-version-manual"}]}},"RequestedLocale":"en","Fallback":false,"Versions":["11","12","13","14","15","16","17","18","19","20"],"Locales":["en","zh-Hans"],"Signatures":[{"Version":"18","Ordinal":0,"Hash":"083fef21cbe14f22e95ed7386b2f2a192933bcf8174ea9f2940cf455af6fdd47","Text":"pg_jit_available () → boolean","Returns":"boolean","Payload":{"description":"Returns true if a JIT compiler extension is available (see Chapter 30) and the jit configuration parameter is set to on.","description_html":"Returns true if a JIT compiler extension is available (see \u003ca href=\"/docs/18/jit.html\" title=\"Chapter 30. Just-in-Time Compilation (JIT)\"\u003eChapter 30\u003c/a\u003e) and the \u003ca href=\"/docs/18/runtime-config-query.html#GUC-JIT\"\u003ejit\u003c/a\u003e configuration parameter is set to \u003ccode class=\"literal\"\u003eon\u003c/code\u003e.","description_zh":"如果 JIT 编译器扩展可用（参见第 30 章），并且 jit 配置参数设置为 on，则返回真。","description_zh_html":"如果 JIT 编译器扩展可用（参见\u003ca href=\"/docs/18/jit.html\" title=\"第 30 章 即时编译（JIT）\"\u003e第 30 章\u003c/a\u003e），并且 \u003ca href=\"/docs/18/runtime-config-query.html#GUC-JIT\"\u003ejit\u003c/a\u003e 配置参数设置为 \u003ccode class=\"literal\"\u003eon\u003c/code\u003e，则返回真。","examples":[],"html":"\u003ccode class=\"function\"\u003epg_jit_available\u003c/code\u003e () → \u003ccode class=\"returnvalue\"\u003eboolean\u003c/code\u003e","returns":"boolean","text":"pg_jit_available () → boolean","zh_from":"same-version-manual"}}],"Spellings":null,"SQLState":null,"Evidence":null}