char_length

Returns number of characters in the string.

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

Definition PG 18

Returns number of characters in the string.

Signatures and overloads

char_length ( text ) → integer → integer

Returns number of characters in the string.

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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-20261023:84794da926bcd7e7f6975fd39c084e5d3e28fe7e74f2a17877b437cab081f520

Text language: en · wiki-repair-20261023:84794da926bcd7e7f6975fd39c084e5d3e28fe7e74f2a17877b437cab081f520