Functions / Json Functions And Operators

jsonb_array_length

Returns the number of elements in the top-level JSON array.

Reading PG 18current·documented in 14 of 27 versions, 9.4 to 20

Signatures & examples

jsonb_array_length ( jsonb ) → integer

Returns the number of elements in the top-level JSON array.

json_array_length('[1,2,3,{"f1":1,"f2":[5,6]},4]') → 5

jsonb_array_length('[]') → 0

Version history 2

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