dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
DROPTABLEIFEXISTS`OrderItemsTWO`;CREATETABLEIFNOTEXISTS`OrderItemsTWO`(order_numVARCHAR(255)NOTNULLCOMMENT'商品订单号',quantityINT(255)NOTNULLCOMMENT'商品数量');INSERT`OrderItemsTWO`VALUES('a1',105),('a2',200)