db.DB.Get(&order_item,"select "+field+" from lie_order_items as a join (select round( rand() * (select max(rec_id) from lie_order_items)) as brec_id) as b "+
db.OrderDB.Get(&order_item,"select "+field+" from lie_order_items as a join (select round( rand() * (select max(rec_id) from lie_order_items)) as brec_id) as b "+
"on a.rec_id > b.brec_id and a.goods_price > 0.1 LIMIT 1")