@Override
  public boolean doesPartitionExist(String catName, String dbName, String tableName,
                                    List<FieldSchema> partKeys, List<String> partVals)
      throws MetaException {
    String name = Warehouse.makePartName(partKeys, partVals);
    return this.getMPartition(catName, dbName, tableName, name) != null;
  }
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