code: private List<Column> filterKeyColumn(CqlRow row) {
      if ( suppressKeyInColumns && row.isSetColumns() && row.columns.size() > 0) {
        Iterator<Column> columnsIterator = row.getColumnsIterator();
        Column column = columnsIterator.next();
        if ( column.name.duplicate().equals(KEY_BB) ) {
          columnsIterator.remove();  
        }      
      }
      return row.getColumns();
    }
docs: /*
  Trims the first column from the row if it's name is equal to "KEY"