MySQL Workbench导出Model提示['ERROR 1064 (42000): You have an error in your SQL syntax....syntax to use near 'VISIBLE']

CREATE TABLE IF NOT EXISTS `pihealth`.`warning_events` (
  `wid` INT NOT NULL AUTO_INCREMENT,
  `wtime` DATETIME NOT NULL,
  `wip` VARCHAR(20) NOT NULL,
  `wtype` INT(5) NOT NULL,
  `wdetails` VARCHAR(255) NULL,
  PRIMARY KEY (`wid`),
  UNIQUE INDEX `wid_UNIQUE` (`wid` ASC) VISIBLE)
ENGINE = InnoDB;CREATE TABLE IF NOT EXISTS `pihealth`.`warn