@Override
      protected List<ColumnStatistics> getSqlResult(
          GetHelper<List<ColumnStatistics>> ctx) throws MetaException {
        return directSql.getPartitionStats(
            catName, dbName, tblName, partNames, colNames, engine, enableBitVector, enableKll);
      }
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