{"Entry":{"collection":"func","key":"sqrt","name":"sqrt","aliases":[],"metadata":{"changed_in":["7.3"],"changes":[{"descriptions_changed":false,"doc_overhaul":false,"from":"7.2","group_changed":null,"signatures":{"added":["sqrt ( dp or numeric ) → (same as input)"],"removed":["sqrt ( dp ) → dp"]},"status":"changed","to":"7.3"},{"descriptions_changed":false,"doc_overhaul":true,"from":"12","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"13"}],"content_hash":"7d75a0a7c48747822c25b60513ad462e18fd6ba0a9648c3e6517c0af60f1ba17","first_version":"7.1","group":"math","group_label":"Mathematical Functions And Operators","groups":["math"],"imported_at":"2026-09-27T17:57:28.274289+08:00","last_version":"20","name":"sqrt","name_key":"sqrt","position":2049,"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":"sqrt ( numeric ) → numeric","signature_count":2,"slug":"sqrt","source_rev":"b7bd9cda","summary":"Square root","summary_zh":""}},"Definition":{"Collection":"func","Key":"sqrt","SourceDatabase":"center","Version":"18","SourceTable":"func","SourceKey":"sqrt","SourceRevision":"b7bd9cda","Facts":{"description":"Square root","description_html":"Square root","description_zh":"","description_zh_html":"","doc":{"anchor":"FUNCTIONS-MATH-FUNC-TABLE","file":"functions-math.html","slug":"18"},"group":"math","group_label":"Mathematical Functions And Operators","lang":"en","layout":"table-new","pages":["functions-math.html"],"prose_only":false,"signatures":[{"description":"Square root","description_html":"Square root","description_zh":"","description_zh_html":"","examples":[{"expr":"sqrt(2)","result":"1.4142135623730951"}],"html":"\u003ccode class=\"function\"\u003esqrt\u003c/code\u003e ( \u003ccode class=\"type\"\u003enumeric\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003enumeric\u003c/code\u003e","returns":"numeric","text":"sqrt ( numeric ) → numeric","zh_from":""},{"description":"Square root","description_html":"Square root","description_zh":"","description_zh_html":"","examples":[{"expr":"sqrt(2)","result":"1.4142135623730951"}],"html":"\u003ccode class=\"function\"\u003esqrt\u003c/code\u003e ( \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003edouble precision\u003c/code\u003e","returns":"double precision","text":"sqrt ( double precision ) → double precision","zh_from":""}],"zh_from":""},"ManualEvidence":{"doc":{"anchor":"FUNCTIONS-MATH-FUNC-TABLE","file":"functions-math.html","slug":"18"}},"MeasuredEvidence":{}},"Text":{"Collection":"func","Key":"sqrt","SourceDatabase":"pgweb","Version":"18","Locale":"zh-Hans","Title":"sqrt","Summary":"平方根","BodyHTML":"平方根\u003cpre\u003esqrt ( numeric ) → numeric\u003c/pre\u003e平方根\u003cpre\u003esqrt ( double precision ) → double precision\u003c/pre\u003e平方根","SourceRevision":"ca936764","ContentHash":"9b22a5191b4dc139a1c2afd7a908ad29d3d326c980d06ce01b716b7ade8cc0a0","Payload":{"description_zh":"平方根","description_zh_html":"平方根","signatures":[{"description_zh":"平方根","description_zh_html":"平方根","returns":"numeric","text":"sqrt ( numeric ) → numeric","zh_from":"doc"},{"description_zh":"平方根","description_zh_html":"平方根","returns":"double precision","text":"sqrt ( double precision ) → double precision","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":"d88cad54d437641a989915d22178df10fe44c7fcbca1defe102d9a0babf499cd","Text":"sqrt ( numeric ) → numeric","Returns":"numeric","Payload":{"description":"Square root","description_html":"Square root","description_zh":"","description_zh_html":"","examples":[{"expr":"sqrt(2)","result":"1.4142135623730951"}],"html":"\u003ccode class=\"function\"\u003esqrt\u003c/code\u003e ( \u003ccode class=\"type\"\u003enumeric\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003enumeric\u003c/code\u003e","returns":"numeric","text":"sqrt ( numeric ) → numeric","zh_from":""}},{"Version":"18","Ordinal":1,"Hash":"d54eb1e79c3f5341546453120e0aad973f472e3133112a6693e1c31eeb6439dd","Text":"sqrt ( double precision ) → double precision","Returns":"double precision","Payload":{"description":"Square root","description_html":"Square root","description_zh":"","description_zh_html":"","examples":[{"expr":"sqrt(2)","result":"1.4142135623730951"}],"html":"\u003ccode class=\"function\"\u003esqrt\u003c/code\u003e ( \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003edouble precision\u003c/code\u003e","returns":"double precision","text":"sqrt ( double precision ) → double precision","zh_from":""}}],"Spellings":null,"SQLState":null,"Evidence":null}