presto-orc/src/main/java/io/prestosql/orc/checkpoint/InputStreamCheckpoint.java/InputStreamCheckpoint/createInputStreamPositionList
class InputStreamCheckpoint:    public static List<Integer> createInputStreamPositionList(boolean compressed, long inputStreamCheckpoint)
    {
        if (compressed) {
            return ImmutableList.of(decodeCompressedBlockOffset(inputStreamCheckpoint), decodeDecompressedOffset(inputStreamCheckpoint));
        }
        else {
            return ImmutableList.of(decodeDecompressedOffset(inputStreamCheckpoint));
        }
    }