我正在使用mysql工作台为我的数据库创建一个模式。当我尝试将它同步到服务器时，我得到一个错误1064。以下是完整日志：

Executing SQL script in server
ERROR: Error 1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'VISIBLE,
  PRIMARY KEY (`id`),
  CONSTRAINT `buildings_rel`
    FOREIGN KEY (`bu' at line 10
SQL Code:
        CREATE TABLE IF NOT EXISTS `rentals`.`apartments` (
          `beds` INT(11) NOT NULL,
          `baths` INT(11) NOT NULL,
          `area` INT(11) NOT NULL,
          `price_min` INT(11) NOT NULL,
          `price_max` INT(11) NOT NULL,
          `available_now` BIT(1) NOT NULL,
          `building_id` INT(11) NULL DEFAULT NULL,
          `id` INT(11) NOT NULL AUTO_INCREMENT,
          INDEX `buildings_rel_idx` (`building_id` ASC) VISIBLE,
          PRIMARY KEY (`id`),
          CONSTRAINT `buildings_rel`
            FOREIGN KEY (`building_id`)
            REFERENCES `rentals`.`buildings` (`id`)
            ON DELETE NO ACTION
            ON UPDATE NO ACTION)
        ENGINE = InnoDB
        DEFAULT CHARACTER SET = utf8

我不太懂sql，所以我很难弄清楚这里到底出了什么问题。我希望工作台能够创建正确的代码，但我有点惊讶的是，这似乎是一个小故障。谢谢你的帮助。