gtors

CREATE FUNCTION key_underscore_to_camel_case(s text)
RETURNS json
IMMUTABLE
LANGUAGE sql
AS $$
    SELECT to_json(substring(s, 1, 1) || substring(replace(initcap(replace(s, '_', ' ')), ' ', ''), 2));
$$;

-- TODO: add recursive processing
CREATE FUNCTION json_underscore_to_camel_case(data json)