DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` TRIGGER `edi`.`item_feature_beforeInsert`
	BEFORE INSERT ON `item_feature`
	FOR EACH ROW
BEGIN
	IF NEW.expiry_date = '0000-00-00' THEN
		SET NEW.expiry_date = NULL;
	END IF;
END$$
DELIMITER ;