ALTER TABLE `task_feedback`
ADD COLUMN `task_status`  varchar(11) NOT NULL DEFAULT 1 COMMENT '任务状态' AFTER `task_id`,
ADD COLUMN `task_start`  varchar(20) NOT NULL AFTER `task_date`,
ADD COLUMN `task_end`  varchar(20) NOT NULL AFTER `task_start`,
DROP COLUMN `accept`,
DROP COLUMN `reject_reason`;

ALTER TABLE `task_person`
ADD COLUMN `accept_status`  int(11) NOT NULL DEFAULT 0 COMMENT '接受状态 ：0-未接受（即新任务）、1-已接受、2-已拒绝' AFTER `create_time`,
ADD COLUMN `reject_reason`  varchar(500) NULL AFTER `accept_status`,
ADD COLUMN `update_time`  datetime NULL AFTER `reject_reason`,
ADD UNIQUE INDEX `ak_task_task_person` (`task_id`, `person_id`) USING BTREE ;