btrim

Removes the longest string containing only characters in characters (a space by default) from the start and end of string.

English manual coverage begins with PostgreSQL 7.1. Source history and runtime observations have their own recorded version boundaries.

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group: string
group label: 字符串函数和操作符
lang: en
layout: table-new
pages: functions-string.html, functions-binarystring.html
prose only: false

Definition PG 18

Removes the longest string containing only characters in characters (a space by default) from the start and end of string.

Signatures and overloads

btrim ( string text [, characters text] ) → text → text

Removes the longest string containing only characters in characters (a space by default) from the start and end of string.

btrim ( bytes bytea, bytesremoved bytea ) → bytea → bytea

Removes the longest string containing only bytes appearing in bytesremoved from the start and end of bytes.

Compare versions

Complete source facts

documentation revision

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Source references

Original manual reference

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:41b88762767c9f928fe04f167ed96395c00d0b86849dd9f0306446ddd146acda

Text language: en · wiki-repair-20261023:41b88762767c9f928fe04f167ed96395c00d0b86849dd9f0306446ddd146acda