docs: public String addSortParams(boolean bIncludeFileName, boolean bForceUniqueKey)
      {
          String strSort = super.addSortParams(bIncludeFileName, bForceUniqueKey);
          if (strSort.length() > 0)
              return strSort;     // Sort string was specified for this "QueryRecord"
          Record stmtTable = this.getRecordlistAt(0);
          if (stmtTable != null)
              strSort += stmtTable.addSortParams(bIncludeFileName, bForceUniqueKey);
          return strSort;
      }