public void addDoubleStats(ColumnStatisticsData cd, List<String> ls) {
    if (!cd.isSetDoubleStats()) {
      return;
    }
    DoubleColumnStatsData dc = cd.getDoubleStats();
    ls.add(numNulls + dc.getNumNulls() + "'");
    ls.add(numDVs + dc.getNumDVs() + "'");
    ls.add(highValue + dc.getHighValue() + "'");
    ls.add(lowValue + dc.getLowValue() + "'");
  }
Creates the alter table command to add a partition to the given table.

@param pt
@return
ql/src/java/org/apache/hadoop/hive/ql/exec/DDLPlanUtils.java