docs: public void parseRestoreResultRow(VoltTable vt)
      {
          RestoreResultKey key = new RestoreResultKey(
                  (int)vt.getLong("HOST_ID"),
                  (int)vt.getLong("PARTITION_ID"),
                  vt.getString("TABLE"));
          if (containsKey(key)) {
              get(key).mergeData(vt.getString("RESULT").equals("SUCCESS"),
                                 vt.getString("ERR_MSG"));
          }
          else {
              put(key, new RestoreResultValue((int)vt.getLong("SITE_ID"),
                                              vt.getString("RESULT").equals("SUCCESS"),
                                              vt.getString("HOSTNAME"),
                                              vt.getString("ERR_MSG")));
          }
      }