CREATE TRIGGER mk_osc_del AFTER DELETE ON `osc`.`t` FOR EACH ROW DELETE IGNORE FROM `osc`.`__new_t` WHERE `osc`.`__new_t`.`id` = OLD.`id`
CREATE TRIGGER mk_osc_upd AFTER UPDATE ON `osc`.`t` FOR EACH ROW REPLACE INTO `osc`.`__new_t` (`id`, `c`) VALUES (NEW.`id`, NEW.`c`)
CREATE TRIGGER mk_osc_ins AFTER INSERT ON `osc`.`t` FOR EACH ROW REPLACE INTO `osc`.`__new_t` (`id`, `c`) VALUES(NEW.`id`, NEW.`c`)