{"Entry":{"collection":"func","key":"stddev-samp","name":"stddev_samp","aliases":[],"metadata":{"changed_in":[],"changes":[{"descriptions_changed":false,"doc_overhaul":false,"from":"8.1","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"added","to":"8.2"},{"descriptions_changed":false,"doc_overhaul":true,"from":"12","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"13"}],"content_hash":"72af2fb6d9b2b62648d7aaff65c561fcab7f860f75da804ba1cec43c1f41b0b6","derived_content_hash":"ca309dcab04023977237e09296b551ce924b21ce182ed06ae9771f9fe59a8ea7","documentation_refresh":{"batch":"20261113","original_source_rev":"wiki-repair-20261023:06a25b74aa25d2116de919f2c51c3414d249777d4f2aecf8924b3a4d753fe8c2","versions":{"14":"14.25","15":"15.20","16":"16.16","17":"17.12","18":"18.7","19":"19rc2"}},"first_version":"8.2","group":"aggregate","group_label":"Aggregate Functions","groups":["aggregate"],"imported_at":"2026-09-27T17:57:28.970075+08:00","last_version":"20","name":"stddev_samp","name_key":"stddev_samp","position":21050,"present_in":["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"],"repair_provenance":{"original_source_revision":"wiki-repair-20261023:c2b81ddc3b82e4c1fb7175fb552fd79ba1968803c74b29b67d6b6ee28b0ba925","receipt_sha256":"6dd822522be64a116fb31106967f8d7c4d7763c74558250de2662ac253e43c3d","repair":"wiki-repair-20261023"},"signature":"stddev_samp ( numeric_type ) → double precision for real or double precision, otherwise numeric","signature_count":1,"slug":"stddev-samp","source_rev":"wiki-repair-20261023:06a25b74aa25d2116de919f2c51c3414d249777d4f2aecf8924b3a4d753fe8c2","summary":"Computes the sample standard deviation of the input values.","summary_zh":""}},"Definition":{"Collection":"func","Key":"stddev-samp","SourceDatabase":"center","Version":"18","SourceTable":"func","SourceKey":"stddev-samp","SourceRevision":"wiki-repair-20261023:06a25b74aa25d2116de919f2c51c3414d249777d4f2aecf8924b3a4d753fe8c2","Facts":{"description":"Computes the sample standard deviation of the input values.","description_html":"Computes the sample standard deviation of the input values.","description_zh":"计算输入值的样本标准差。","description_zh_html":"计算输入值的样本标准差。","doc":{"anchor":"FUNCTIONS-AGGREGATE-STATISTICS-TABLE","file":"functions-aggregate.html","sha256":"31d3dcd36ef353484b4b3535f9f0d1cc239c3910146257fe5178f99b90b501e2","slug":"18"},"documentation_revision":{"inputs":[{"file":"functions-aggregate.html","kind":"same-version-reviewed-manual","locale":"en","sha256":"31d3dcd36ef353484b4b3535f9f0d1cc239c3910146257fe5178f99b90b501e2","version":"18.7"},{"file":"functions-aggregate.html","kind":"same-version-reviewed-manual","locale":"zh-Hans","sha256":"0bf7506d27b71666fc74840a21a8f77c8a92735174f1d05033865961722e457c","version":"18.7"}],"release":"18.7","runtime_remeasured":false,"source_revision":"pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552"},"group":"aggregate","group_label":"聚合函数","lang":"en","layout":"table-new","pages":["functions-aggregate.html"],"prose_only":false,"signatures":[{"description":"Computes the sample standard deviation of the input values.","description_html":"Computes the sample standard deviation of the input values.","description_zh":"","description_zh_html":"","examples":[],"html":"\u003ccode class=\"function\"\u003estddev_samp\u003c/code\u003e ( \u003cem class=\"replaceable\"\u003e\u003ccode\u003enumeric_type\u003c/code\u003e\u003c/em\u003e ) → \u003ccode class=\"returnvalue\"\u003e\u003c/code\u003e \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e for \u003ccode class=\"type\"\u003ereal\u003c/code\u003e or \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e, otherwise \u003ccode class=\"type\"\u003enumeric\u003c/code\u003e","returns":"","text":"stddev_samp ( numeric_type ) → double precision for real or double precision, otherwise numeric","zh_from":""}],"translation_provenance":{"inputs":[{"kind":"current-pgdoc-translation","path":"/Users/vonng/pgsty/pgdoc/zh/18/html/functions-aggregate.html","sha256":"68da7af09e2749a855188bbbff99ae036fc7eece4e19b8e048baffd28aa3ca59"}],"kind":"same-version-pgdoc","locale":"zh-Hans","source_revision":"b1b500221dbe5437cfca004d6b04d3f6e422765d","version":"18"},"zh_from":"same-version-manual"},"ManualEvidence":{"doc":{"anchor":"FUNCTIONS-AGGREGATE-STATISTICS-TABLE","file":"functions-aggregate.html","sha256":"31d3dcd36ef353484b4b3535f9f0d1cc239c3910146257fe5178f99b90b501e2","slug":"18"}},"MeasuredEvidence":{}},"Text":{"Collection":"func","Key":"stddev-samp","SourceDatabase":"center","Version":"18","Locale":"en","Title":"stddev_samp","Summary":"Computes the sample standard deviation of the input values.","BodyHTML":"Computes the sample standard deviation of the input values.","SourceRevision":"wiki-repair-20261023:06a25b74aa25d2116de919f2c51c3414d249777d4f2aecf8924b3a4d753fe8c2","ContentHash":"a081f84698a586361cea957b8a265c7f6ad26c00856d4a2c45dacaaab8f0b710","Payload":{"description":"Computes the sample standard deviation of the input values.","description_html":"Computes the sample standard deviation of the input values.","signatures":[{"description":"Computes the sample standard deviation of the input values.","description_html":"Computes the sample standard deviation of the input values.","description_zh":"","description_zh_html":"","examples":[],"html":"\u003ccode class=\"function\"\u003estddev_samp\u003c/code\u003e ( \u003cem class=\"replaceable\"\u003e\u003ccode\u003enumeric_type\u003c/code\u003e\u003c/em\u003e ) → \u003ccode class=\"returnvalue\"\u003e\u003c/code\u003e \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e for \u003ccode class=\"type\"\u003ereal\u003c/code\u003e or \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e, otherwise \u003ccode class=\"type\"\u003enumeric\u003c/code\u003e","returns":"","text":"stddev_samp ( numeric_type ) → double precision for real or double precision, otherwise numeric","zh_from":""}]}},"RequestedLocale":"en","Fallback":false,"Versions":["10","11","12","13","14","15","16","17","18","19","20","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":"4c4c904ab6a5847f1461cd21f290f18d015b8141baefef86398a5d66b21b29c2","Text":"stddev_samp ( numeric_type ) → double precision for real or double precision, otherwise numeric","Returns":"","Payload":{"description":"Computes the sample standard deviation of the input values.","description_html":"Computes the sample standard deviation of the input values.","description_zh":"","description_zh_html":"","examples":[],"html":"\u003ccode class=\"function\"\u003estddev_samp\u003c/code\u003e ( \u003cem class=\"replaceable\"\u003e\u003ccode\u003enumeric_type\u003c/code\u003e\u003c/em\u003e ) → \u003ccode class=\"returnvalue\"\u003e\u003c/code\u003e \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e for \u003ccode class=\"type\"\u003ereal\u003c/code\u003e or \u003ccode class=\"type\"\u003edouble precision\u003c/code\u003e, otherwise \u003ccode class=\"type\"\u003enumeric\u003c/code\u003e","returns":"","text":"stddev_samp ( numeric_type ) → double precision for real or double precision, otherwise numeric","zh_from":""}}],"Spellings":null,"SQLState":null,"Evidence":null}
