/// <summary>
        /// 获取别名字段
        /// </summary>
        /// <param name="handle"></param>
        /// <returns></returns>
        public List <BQLParamHandle> GetPrimaryAliasParamHandle(BQLParamHandle[] handles)
        {
            List <BQLParamHandle> lst = new List <BQLParamHandle>();
            bool hasOther             = false;//是否有不是指定的字段

            foreach (BQLParamHandle handle in handles)
            {
                BQLEntityParamHandle pHandle = handle as BQLEntityParamHandle;
                if (CommonMethods.IsNull(pHandle))
                {
                    lst.Add(handle);
                    hasOther = true;
                    continue;
                }
                string pName = null;
                if (pHandle.PInfo == null)
                {
                    pName = "*";
                }
                else
                {
                    pName = pHandle.PInfo.PropertyName;
                }
                lst.AddRange(_primaryTable.GetParamInfo(pName));
            }
            if (!hasOther)
            {
                LoadChildParams(_primaryTable, lst);
            }
            return(lst);
        }
 /// <summary>
 /// 获取子类的字段信息
 /// </summary>
 /// <param name="table"></param>
 private void LoadChildParams(AliasTableMapping table, List <BQLParamHandle> lst)
 {
     foreach (KeyValuePair <string, AliasTableMapping> cTableMapping in table.ChildTables)
     {
         AliasTableMapping cTable = cTableMapping.Value;
         lst.AddRange(cTable.GetParamInfo("*"));
         if (cTable.ChildTables.Count > 0)
         {
             LoadChildParams(cTable, lst);
         }
     }
 }