DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` TRIGGER `hedera`.`news_afterUpdate`
	AFTER UPDATE ON `news`
	FOR EACH ROW
BEGIN
	IF !(NEW.image <=> OLD.image) THEN
		CALL image_unref('news', OLD.image);
		CALL image_ref('news', NEW.image);
	END IF;
END$$
DELIMITER ;
