+CREATE OR REPLACE FUNCTION json_fn()
+ RETURNS TRIGGER AS
+$func$
+BEGIN
+ NEW := jsonb_populate_record(NEW, NEW.json); -- or hstore alternative
+ RETURN NEW;
+END
+$func$ LANGUAGE plpgsql;
+
+CREATE TRIGGER json_trigger
+BEFORE INSERT OR UPDATE ON rtl433 FOR EACH ROW
+EXECUTE PROCEDURE json_fn();
+
+