1--- 2--- CREATE_TRIGGER 3--- 4 5CREATE FUNCTION plpgsql_function_trigger_1() 6 RETURNS TRIGGER 7 LANGUAGE plpgsql 8AS $$ 9BEGIN 10 RETURN NEW; 11END; 12$$; 13 14CREATE TRIGGER trigger_1 15 BEFORE INSERT OR UPDATE 16 ON datatype_table 17 FOR EACH ROW 18 EXECUTE PROCEDURE plpgsql_function_trigger_1(); 19