DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` TRIGGER `vn`.`workerMana_beforeUpdate`
	BEFORE UPDATE ON `workerMana`
	FOR EACH ROW
BEGIN
	IF (SELECT EXISTS(SELECT TRUE FROM workerManaExcluded WHERE workerFk = NEW.workerFk)) THEN
		CALL util.throw('Worker is excluded from mana');
	END IF;
END$$
DELIMITER ;