ltrim

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

Signatures and overloads

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

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

ltrim ( bytes bytea, bytesremoved bytea ) → bytea → bytea

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

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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-20261023:8ef28ccb0a83adb760e91f62813fbb3b0d1c77858a5c31277b1649fcbb74fe04

Text language: en · wiki-repair-20261023:8ef28ccb0a83adb760e91f62813fbb3b0d1c77858a5c31277b1649fcbb74fe04