我对JPQL的尝试: SELECT DISTINCT dm FROM DirectMessage dm WHERE (dm.messageFrom.id=1 OR dm.messageTo.id=1)GROUP BY dm.id, dm.messageFrom.id, dm.messageTo.id ORDER BY dm.date DESC 带模式的具体示例: 如果我希望返回'user a‘的最新记录message_text varchar
set DM_Sample_Search_Param_Disposition_Type.Active = 0 left join DM_Sample_Search_Param dm_ss_param on dm_ss_param_cl.DM_Sample_Search_Param_id=dm_ss_par