Like these?

> Adds SQL/JSON constructors, including JSON_ARRAY(), JSON_ARRAYAGG(), JSON_OBJECT(), and JSON_OBJECTAGG().

Not sure what SQL/JSON identity functions relate to

SELECT js, js IS JSON OBJECT "object?", js IS JSON ARRAY "array?", js IS JSON ARRAY WITH UNIQUE KEYS "array w. UK?", js IS JSON ARRAY WITHOUT UNIQUE KEYS "array w/o UK?" FROM (VALUES ('[{"a":"1"}, {"b":"2","b":"3"}]')) foo(js);