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bit_length

Returns number of bits in the string (8 times the octet_length).

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

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, functions-bitstring.html
prose only
false

Definition PG 18

Returns number of bits in the string (8 times the octet_length).

Signatures and overloads

bit_length ( text ) → integer → integer
Returns number of bits in the string (8 times the octet_length).
bit_length ( bytea ) → integer → integer
Returns number of bits in the binary string (8 times the octet_length).
bit_length ( bit ) → integer → integer
Returns number of bits in the bit string.

Compare versions

Complete source facts

documentation revision

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Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:92150a609df3c0103d86110df8f859e29ec6bbff02db907d57110c18e5525a2f

Text language: en · wiki-repair-20261023:92150a609df3c0103d86110df8f859e29ec6bbff02db907d57110c18e5525a2f