array_to_json()

Converts an SQL array to a JSON array. The behavior is the same as to_json except that line feeds will be added between top-level array elements if the optional boolean parameter is true.

Signature

array_to_json ( anyarray [, boolean ] ) → json

Examples

SELECT array_to_json('{{1,5},{99,100}}'::int[]);

[[1,5],[99,100]]

Run against PostgreSQL 18.6 on 2026-09-13. This is the output we got, not the documentation’s.

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