docs: @NonNull
    @Override
    public Iterator<AdminRow> iterator() {
      return new AbstractIterator<AdminRow>() {
        @Override
        protected AdminRow computeNext() {
          List<ByteBuffer> rowData = data.poll();
          return (rowData == null)
              ? endOfData()
              : new AdminRow(columnSpecs, rowData, protocolVersion);
        }
      };
    }