}
file.mark();
for (IndexHelper.IndexInfo indexInfo : ranges)
{
file.reset();
assert file.skipBytes((int)indexInfo.offset) == indexInfo.offset;
// TODO only completely deserialize columns we are interested in
while (file.bytesPastMark() < indexInfo.offset + indexInfo.width)
{
final IColumn column = cf.getColumnSerializer().deserialize(file);