func (ts *MemTripleStore) MakeFixed() *graph.FixedIterator { return graph.NewFixedIteratorWithCompare(graph.BasicEquality) }
func (ts *MongoTripleStore) MakeFixed() *graph.FixedIterator { return graph.NewFixedIteratorWithCompare(compareStrings) }
func (ts *LevelDBTripleStore) MakeFixed() *graph.FixedIterator { return graph.NewFixedIteratorWithCompare(compareBytes) }