code: @Override
      public int append2SQLSelect(final Type _type,
                                  final SQLSelect _select,
                                  final int _tableIndex,
                                  final int _colIndex)
      {
          _select.column(_tableIndex, AbstractStoreResource.COLNAME_FILELENGTH);
          getColIndexs().add(_colIndex);
          return 1;
      }
docs: {@inheritDoc}