Lucene40DocValuesFormat.BYTES_VAR_SORTED_VERSION_START,
Lucene40DocValuesFormat.BYTES_VAR_SORTED_VERSION_CURRENT);
long maxAddress = index.readLong();
PagedBytes bytes = new PagedBytes(16);
bytes.copy(data, maxAddress);
final PagedBytes.Reader bytesReader = bytes.freeze(true);
final PackedInts.Reader addressReader = PackedInts.getReader(index);
final PackedInts.Reader ordsReader = PackedInts.getReader(index);
final int valueCount = addressReader.size() - 1;