SET FOREIGN_KEY_CHECKS=0; ALTER TABLE `pearproject`.`pear_task_tag` ENGINE = InnoDB, COMMENT = '任务标签表', ROW_FORMAT = Compact; ALTER TABLE `pearproject`.`pear_task_tag` DROP COLUMN `color_value`; ALTER TABLE `pearproject`.`pear_task_to_tag` ENGINE = InnoDB, COMMENT = '任务标签映射表', ROW_FORMAT = Compact; SET FOREIGN_KEY_CHECKS=1;