presto-orc/src/main/java/io/prestosql/orc/reader/SliceColumnReader.java/SliceColumnReader/close
class SliceColumnReader:    @Override
    public void close()
    {
        try (Closer closer = Closer.create()) {
            closer.register(directReader::close);
            closer.register(dictionaryReader::close);
        }
        catch (IOException e) {
            throw new UncheckedIOException(e);
        }
    }