order_id, user_id, receiver, tel, province, city, area, address, order_num, pay_amt, freight_amt, memo, status, created_time, updated_time select DISTINCT t1.* , t2.nick_name nickName from mp_user_deliver_order t1 left join sys_user t2 on t1.user_id = t2.user_id left join mp_user_deliver_order_item t3 on t1.order_id = t3.order_id ${ew.customSqlSegment} select count(DISTINCT t1.order_id) from mp_user_deliver_order t1 left join sys_user t2 on t1.user_id = t2.user_id left join mp_user_deliver_order_item t3 on t1.order_id = t3.order_id ${ew.customSqlSegment}