code: @Override
    public Filter adapt(FilterAdapterContext context, ColumnCountGetFilter filter)
        throws IOException {
      // This is fairly broken for all scans, but I'm simply going for bug-for-bug
      // compatible with string reader expressions.
      return FILTERS.chain()
          .filter(FILTERS.limit().cellsPerColumn(1))
          .filter(FILTERS.limit().cellsPerRow(filter.getLimit()));
    }
docs: {@inheritDoc}