Returns the substring within string that matches the N'th occurrence of the POSIX regular expression pattern, or NULL if there is no such match; see Section 9.7.3.
English manual coverage begins with PostgreSQL 7.1. Source history and runtime observations have their own recorded version boundaries.
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string that matches the N'th occurrence of the POSIX regular expression pattern, or NULL if there is no such match; see Section 9.7.3.regexp_substr ( string text, pattern text [, start integer [, N integer [, flags text [, subexpr integer] ] ] ] ) → text → textReturns the substring within
string that matches the N'th occurrence of the POSIX regular expression pattern, or NULL if there is no such match; see Section 9.7.3.{"inputs":[{"file":"functions-string.html","kind":"same-version-reviewed-manual","locale":"en","sha256":"dbe9f91e55c35969d99a8d2697b6f7bd5388a24ccc2b89706a666f176025f1e2","version":"18.7"},{"file":"functions-string.html","kind":"same-version-reviewed-manual","locale":"zh-Hans","sha256":"7eecd3bb343149124be0476a539f3c682476eab2a15489a0e0ad06fbb769ea9e","version":"18.7"}],"release":"18.7","runtime_remeasured":false,"source_revision":"pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552"}Full definition and evidence JSON
center · PostgreSQL 18 · wiki-repair-20261023:3382acdc98b5a510fee99490ca69a6a927acb843696b726d1b27d0dffc54a6f9
Text language: en · wiki-repair-20261023:3382acdc98b5a510fee99490ca69a6a927acb843696b726d1b27d0dffc54a6f9