group/order/having/exists条件

group/order/having/exists都可以放在query参数中,与查询条件混在一块，如
service.select("SSO_USER AS M", "order by id desc", "group by type", "exists(SELECT * FROM HR_USER AS H WHERE H.ID = M.ID)")
因为exists会涉及到动态条件，所以可以先构造RunPrepare，参考【exists】