unnest ( tsvector ) → setof record ( lexeme text, positions smallint[], weights text ) → setof recordExpands a
tsvector into a set of rows, one per lexeme.unnest
Expands a tsvector into a set of rows, one per lexeme.
English manual coverage begins with PostgreSQL 7.1. Source history and runtime observations have their own recorded version boundaries.
Reading PG 18·Select a recorded version
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Definition PG 18
Expands a
tsvector into a set of rows, one per lexeme.Signatures and overloads
unnest ( anyarray ) → setof anyelement → setof anyelementExpands an array into a set of rows. The array's elements are read out in storage order.
unnest ( anyarray, anyarray [, ... ] ) → setof anyelement, anyelement [, ... ] → setof anyelement, anyelement [, ... ]Expands multiple arrays (possibly of different data types) into a set of rows. If the arrays are not all the same length then the shorter ones are padded with
NULLs. This form is only allowed in a query's FROM clause; see Section 7.2.1.4.unnest ( anymultirange ) → setof anyrange → setof anyrangeExpands a multirange into a set of ranges in ascending order.
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Full definition and evidence JSON
Definition sources
center · PostgreSQL 18 · wiki-repair-20261023:0f7d903e1b545b77328a8bd0bcc9e68d8d4e230e100f00cd2ffdd0805799862f
Text language: en · wiki-repair-20261023:0f7d903e1b545b77328a8bd0bcc9e68d8d4e230e100f00cd2ffdd0805799862f