salix/db/routines/vn/triggers/client_afterUpdate.sql

DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` TRIGGER `vn`.`client_afterUpdate`
	AFTER UPDATE ON `client`
	FOR EACH ROW
BEGIN
	IF !(NEW.defaultAddressFk <=> OLD.defaultAddressFk) THEN
		UPDATE `address` SET isDefaultAddress = FALSE
			WHERE clientFk = NEW.id;

		UPDATE `address` SET isDefaultAddress = TRUE
			WHERE id = NEW.defaultAddressFk;
	END IF;
END$$
DELIMITER ;