docs: public String addSortParams(boolean bIncludeFileName, boolean bForceUniqueKey)
      {
          String strSort = DBConstants.BLANK;
          KeyArea keyArea = this.getKeyArea(-1);
          if (keyArea != null)        // Leave orderby blank if no index specified
              strSort = keyArea.addSortParams(bIncludeFileName, bForceUniqueKey);
          return strSort;
      }