code: @Override
  	public ClosableIterator<Tuple> executeBackendQuery(BackendQuery<T> query, QueryParameters queryParameters, TupleContext tupleContext) {
  		return queryableGridDialect.executeBackendQuery( query, queryParameters, tupleContext );
  	}
docs: /*
  @see org.hibernate.ogm.dialect.queryable.spi.QueryableGridDialect