-- 添加商品ID填写确认字段
ALTER TABLE task ADD COLUMN product_id_filled TINYINT(1) DEFAULT 0 COMMENT '商品ID是否已填写确认：0-未填写 1-已填写' AFTER reject_deadline;

-- 更新现有已完成任务：如果已有商品ID记录则标记为已填写
UPDATE task t 
SET t.product_id_filled = 1 
WHERE t.status = 'completed' 
AND EXISTS (SELECT 1 FROM task_product tp WHERE tp.task_id = t.id);