private static List<String> stringifyValuesNoSort(int[][] rowsIn) {
    assert rowsIn.length > 0;
    int[][] rows = rowsIn.clone();
    List<String> rs = new ArrayList<String>();
    for(int[] row : rows) {
      assert row.length > 0;
      StringBuilder sb = new StringBuilder();
      for(int value : row) {
        sb.append(value).append("\t");
      }
      sb.setLength(sb.length() - 1);
      rs.add(sb.toString());
    }
    return rs;
  }
takes raw data and turns it into a string as if from Driver.getResults()
sorts rows in dictionary order
ql/src/test/org/apache/hadoop/hive/ql/TestTxnCommands2.java