CREATE TABLE IF NOT EXISTS `recovery_ec_shukka` (
  `contact_id` char(36) DEFAULT NULL,
  `event_id` char(36) DEFAULT NULL,
  `koza_id` char(36) DEFAULT NULL,
  `to_class_change_date` date DEFAULT NULL,
  PRIMARY KEY (`contact_id`,`event_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;