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array_length

Returns the length of the requested array dimension. (Produces NULL instead of 0 for empty or missing array dimensions.)

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
array
group label
Array Functions And Operators
lang
en
layout
table-new
pages
functions-array.html
prose only
false

Definition PG 18

Returns the length of the requested array dimension. (Produces NULL instead of 0 for empty or missing array dimensions.)

Signatures and overloads

array_length ( anyarray, integer ) → integer → integer
Returns the length of the requested array dimension. (Produces NULL instead of 0 for empty or missing array dimensions.)

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Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:4b3046c7ac82d50dd70dbebb75bd75ec4cce615f700f86246278c87d82af7761

Text language: en · wiki-repair-20261023:4b3046c7ac82d50dd70dbebb75bd75ec4cce615f700f86246278c87d82af7761