@Override
  public DiskRange sliceAndShift(long offset, long end, long shiftBy) {
    throw new UnsupportedOperationException("Cache chunk cannot be sliced - attempted ["
        + this.offset + ", " + this.end + ") to [" + offset + ", " + end + ") ");
  }
DiskRange containing encoded, uncompressed data from cache.
It should be hidden inside EncodedReaderImpl, but we need to expose it for tests.
ql/src/java/org/apache/hadoop/hive/ql/io/orc/encoded/CacheChunk.java