{"Entry":{"collection":"func","key":"isfinite","name":"isfinite","aliases":[],"metadata":{"changed_in":["8.4"],"changes":[{"descriptions_changed":true,"doc_overhaul":false,"from":"7.3","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"7.4"},{"descriptions_changed":true,"doc_overhaul":false,"from":"8.3","group_changed":null,"signatures":{"added":["isfinite ( date ) → boolean"],"removed":[]},"status":"changed","to":"8.4"},{"descriptions_changed":false,"doc_overhaul":true,"from":"12","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"13"}],"content_hash":"2c8d30cc14c4f6c8d08c0d4c078d273b23894989d586343b429653d49c1059f9","first_version":"7.1","group":"datetime","group_label":"Date/Time Functions And Operators","groups":["datetime"],"imported_at":"2026-09-27T17:57:28.539518+08:00","last_version":"20","name":"isfinite","name_key":"isfinite","position":8011,"present_in":["7.1","7.2","7.3","7.4","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6","10","11","12","13","14","15","16","17","18","19","20"],"signature":"isfinite ( date ) → boolean","signature_count":3,"slug":"isfinite","source_rev":"b7bd9cda","summary":"Test for finite date (not +/-infinity)","summary_zh":""}},"Definition":{"Collection":"func","Key":"isfinite","SourceDatabase":"center","Version":"18","SourceTable":"func","SourceKey":"isfinite","SourceRevision":"b7bd9cda","Facts":{"description":"Test for finite date (not +/-infinity)","description_html":"Test for finite date (not +/-infinity)","description_zh":"","description_zh_html":"","doc":{"anchor":"FUNCTIONS-DATETIME-TABLE","file":"functions-datetime.html","slug":"18"},"group":"datetime","group_label":"Date/Time Functions And Operators","lang":"en","layout":"table-new","pages":["functions-datetime.html"],"prose_only":false,"signatures":[{"description":"Test for finite date (not +/-infinity)","description_html":"Test for finite date (not +/-infinity)","description_zh":"","description_zh_html":"","examples":[{"expr":"isfinite(date '2001-02-16')","result":"true"}],"html":"\u003ccode class=\"function\"\u003eisfinite\u003c/code\u003e ( \u003ccode class=\"type\"\u003edate\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003eboolean\u003c/code\u003e","returns":"boolean","text":"isfinite ( date ) → boolean","zh_from":""},{"description":"Test for finite timestamp (not +/-infinity)","description_html":"Test for finite timestamp (not +/-infinity)","description_zh":"","description_zh_html":"","examples":[{"expr":"isfinite(timestamp 'infinity')","result":"false"}],"html":"\u003ccode class=\"function\"\u003eisfinite\u003c/code\u003e ( \u003ccode class=\"type\"\u003etimestamp\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003eboolean\u003c/code\u003e","returns":"boolean","text":"isfinite ( timestamp ) → boolean","zh_from":""},{"description":"Test for finite interval (not +/-infinity)","description_html":"Test for finite interval (not +/-infinity)","description_zh":"","description_zh_html":"","examples":[{"expr":"isfinite(interval '4 hours')","result":"true"}],"html":"\u003ccode class=\"function\"\u003eisfinite\u003c/code\u003e ( \u003ccode class=\"type\"\u003einterval\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003eboolean\u003c/code\u003e","returns":"boolean","text":"isfinite ( interval ) → boolean","zh_from":""}],"zh_from":""},"ManualEvidence":{"doc":{"anchor":"FUNCTIONS-DATETIME-TABLE","file":"functions-datetime.html","slug":"18"}},"MeasuredEvidence":{}},"Text":{"Collection":"func","Key":"isfinite","SourceDatabase":"pgweb","Version":"18","Locale":"zh-Hans","Title":"isfinite","Summary":"测试日期是否有限（不是正负无穷）","BodyHTML":"测试日期是否有限（不是正负无穷）\u003cpre\u003eisfinite ( date ) → boolean\u003c/pre\u003e测试日期是否有限（不是正负无穷）\u003cpre\u003eisfinite ( timestamp ) → boolean\u003c/pre\u003e测试时间戳是否有限（不是正负无穷）\u003cpre\u003eisfinite ( interval ) → boolean\u003c/pre\u003e测试时间间隔是否有限（不是正负无穷）","SourceRevision":"ca936764","ContentHash":"10c0f545e2428cfdced14f61079e0ce6ab592dd8de4d418d5272f5dcb093444e","Payload":{"description_zh":"测试日期是否有限（不是正负无穷）","description_zh_html":"测试日期是否有限（不是正负无穷）","signatures":[{"description_zh":"测试日期是否有限（不是正负无穷）","description_zh_html":"测试日期是否有限（不是正负无穷）","returns":"boolean","text":"isfinite ( date ) → boolean","zh_from":"doc"},{"description_zh":"测试时间戳是否有限（不是正负无穷）","description_zh_html":"测试时间戳是否有限（不是正负无穷）","returns":"boolean","text":"isfinite ( timestamp ) → boolean","zh_from":"doc"},{"description_zh":"测试时间间隔是否有限（不是正负无穷）","description_zh_html":"测试时间间隔是否有限（不是正负无穷）","returns":"boolean","text":"isfinite ( interval ) → boolean","zh_from":"doc"}],"zh_from":"doc"}},"RequestedLocale":"zh-Hans","Fallback":false,"Versions":["10","11","12","13","14","15","16","17","18","19","20","7.1","7.2","7.3","7.4","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6"],"Locales":["en","zh-Hans"],"Signatures":[{"Version":"18","Ordinal":0,"Hash":"5630f808362319449e684499286cabe44f671d744492a15b35f679bd833570c9","Text":"isfinite ( date ) → boolean","Returns":"boolean","Payload":{"description":"Test for finite date (not +/-infinity)","description_html":"Test for finite date (not +/-infinity)","description_zh":"","description_zh_html":"","examples":[{"expr":"isfinite(date '2001-02-16')","result":"true"}],"html":"\u003ccode class=\"function\"\u003eisfinite\u003c/code\u003e ( \u003ccode class=\"type\"\u003edate\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003eboolean\u003c/code\u003e","returns":"boolean","text":"isfinite ( date ) → boolean","zh_from":""}},{"Version":"18","Ordinal":1,"Hash":"3fdb7e999a9e46c8ecaf3d67a87942d56d6dbe28951c71810211bc0889b7c215","Text":"isfinite ( timestamp ) → boolean","Returns":"boolean","Payload":{"description":"Test for finite timestamp (not +/-infinity)","description_html":"Test for finite timestamp (not +/-infinity)","description_zh":"","description_zh_html":"","examples":[{"expr":"isfinite(timestamp 'infinity')","result":"false"}],"html":"\u003ccode class=\"function\"\u003eisfinite\u003c/code\u003e ( \u003ccode class=\"type\"\u003etimestamp\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003eboolean\u003c/code\u003e","returns":"boolean","text":"isfinite ( timestamp ) → boolean","zh_from":""}},{"Version":"18","Ordinal":2,"Hash":"b09ae37b66305b8b51e4ffb403aa72fd9bfb3895132f248a40ed033c3131cd7a","Text":"isfinite ( interval ) → boolean","Returns":"boolean","Payload":{"description":"Test for finite interval (not +/-infinity)","description_html":"Test for finite interval (not +/-infinity)","description_zh":"","description_zh_html":"","examples":[{"expr":"isfinite(interval '4 hours')","result":"true"}],"html":"\u003ccode class=\"function\"\u003eisfinite\u003c/code\u003e ( \u003ccode class=\"type\"\u003einterval\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003eboolean\u003c/code\u003e","returns":"boolean","text":"isfinite ( interval ) → boolean","zh_from":""}}],"Spellings":null,"SQLState":null,"Evidence":null}