CREATE TABLE `ufutx_app_temp_sign` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `user_id` int(11) NOT NULL COMMENT '用户id', `created_at` timestamp NULL DEFAULT NULL COMMENT '创建时间', `updated_at` timestamp NULL DEFAULT NULL COMMENT '更新时间', PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='app8.18大会签到临时表';