@Override
  public ColumnStatistics getTableColumnStatistics(
      String catName,
      String dbName,
      String tableName,
      List<String> colNames,
      String engine) throws MetaException, NoSuchObjectException {
    // Note: this will get stats without verifying ACID.
    return getTableColumnStatisticsInternal(
        catName, dbName, tableName, colNames, engine, true, true);
  }
Get partition's column stats

@return Map of column name and its stats
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java