code: public void doRemove(FieldTable table, KeyAreaInfo keyArea, BaseBuffer buffer) throws DBException
      {
          super.doRemove(table, keyArea, buffer);
      }
docs: Delete the key from this buffer.
  @param table The basetable.
  @param keyArea The basetable's key area.
  @param buffer The buffer to compare.
  @exception DBException File exception.