List<JSONObject>oldField=fieldService.select("select fieldid from ibzfield t inner join ibzentity t1 on t.entityid =t1.entityid where t1.systemid = #{et.id}",param);
List<JSONObject>oldRelation=relationService.select("select distinct(relationid) from ibzrelation t inner join ibzentity t1 on t.entityid=t1.entityid or t.refentityid=t1.entityid where t1.systemid=#{et.id} ",param);