docs: private Map<Long, DataPoint> _getRow(String counterName, int yyyymm, int dd) {
          Map<Long, DataPoint> result = new HashMap<Long, DataPoint>();
  
          ResultSet rs = CqlUtils.execute(sessionHelper.getSession(), cqlGetRow,
                  getConsistencyLevelForRead(), counterName, yyyymm, dd);
          for (Iterator<Row> it = rs.iterator(); it.hasNext();) {
              Row row = it.next();
              long key = row.getLong(CqlTemplate.COL_COUNTER_TIMESTAMP);
              long value = row.getLong(CqlTemplate.COL_COUNTER_VALUE);
              DataPoint dp = new DataPoint(Type.SUM, key, value, RESOLUTION_MS);
              result.put(key, dp);
          }
  
          return result;
      }