delete OrderList
from OrderList as aa
left join (
select min(id) as id from OrderList
group by order_sn
) as bb
on aa.id = bb.id
where (Owner_id = 233617593)AND bb.id is null
delete OrderList
from OrderList as aa
left join (
select min(id) as id from OrderList
group by order_sn
) as bb
on aa.id = bb.id
where (Owner_id = 233617593)AND bb.id is null