code: def materialize(self, ref, table_name=None, index_columns=None, logger=None):
          
          from ambry.library import Library
          assert isinstance(self._library, Library)
  
          logger.debug('Materializing warehouse partition.\n    partition: {}'.format(ref))
          partition = self._library.partition(ref)
  
          connection = self._backend._get_connection()
  
          return self._backend.install(connection, partition, table_name=table_name,
                                       index_columns=index_columns, materialize=True, logger=logger)
docs: Creates materialized table for given partition reference.
  
          Args:
              ref (str): id, vid, name or vname of the partition.
  
          Returns:
              str: name of the partition table in the database.