private static ColumnStatsAccurate parseStatsAcc(String statsAcc) {
    if (statsAcc == null) {
      return new ColumnStatsAccurate();
    }
    try {
      return ColumnStatsAccurate.objectReader.readValue(statsAcc);
    } catch (Exception e) {
      ColumnStatsAccurate ret = new ColumnStatsAccurate();
      if (TRUE.equalsIgnoreCase(statsAcc)) {
        ret.basicStats = true;
      }
      return ret;
    }
  }
@param params table/partition parameters
@return the list of column names for which the stats are available.
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/common/StatsSetupConst.java