gistfile1.txt

CREATE LANGUAGE plpgsql;

CREATE FUNCTION myinsert() RETURNS trigger AS $$
    BEGIN
        IF NEW.name <> 'DUMMY' THEN
            	 insert into names (name) values ('DUMMY');
        END IF;
        RETURN NULL;
    END;
$$ LANGUAGE plpgsql;


CREATE TRIGGER mytrig  AFTER INSERT ON names
FOR EACH ROW   
  EXECUTE PROCEDURE myinsert();