### 1.给attendance_cfg表中增加is_default int 1-默认，0-非默认

更新历史数据

UPDATE attendance_cfg set is_default=1

更新历史数据

UPDATE pro_mobile_attendance_data pmad
INNER JOIN (
SELECT ac.project_id, ac.id AS cfg_id
FROM attendance_cfg ac
WHERE ac.is_default = 1 AND ac.enabled = 1
) ac ON pmad.project_id = ac.project_id
SET pmad.cfg_id = ac.cfg_id
WHERE pmad.att_device = 'device' AND pmad.cfg_id = 0;