adunstan

CREATE OR REPLACE FUNCTION json_cmp(left json, right json)
RETURNS integer AS $$
    select bttextcmp($1::text, $2::text)
$$ LANGUAGE sql IMMUTABLE STRICT;
 
CREATE OR REPLACE FUNCTION json_eq(json, json)
RETURNS BOOLEAN LANGUAGE SQL STRICT IMMUTABLE AS $$
    SELECT json_cmp($1, $2) = 0;
$$;