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Functions / Aggregate Functions

json_agg

Read the PG 18 manual

Collects all the input values, including nulls, into a JSON array.

Reading PG 18current·documented in 15 of 27 versions, 9.3 to 20

7.17.27.37.48.08.18.28.38.49.09.19.29.39.49.59.61011121314151617181920

Signatures & examples

json_agg ( anyelement ORDER BY input_sort_columns ) → json
Collects all the input values, including nulls, into a JSON array. Values are converted to JSON as per to_json or to_jsonb.
Version history 4
  1. 16 → 17 changed
  2. 12 → 13 changed
  3. 9.3 → 9.4 changed
  4. 9.2 → 9.3 added

Definition snapshot: 2026-09-14T13:14:25.684213+00:00@99e6866c · English manual source