SQL语句出错：select Category_en from products_category where UId like '0,363,387,%' order by IsBestDeals desc,if(MyOrder>0, MyOrder, if(MyOrder=0, 1000000, 1000001)) asc,CateId asc limit 0, 20
错误代码：#1054 - Unknown column 'IsBestDeals' in 'order clause'