presto-record-decoder/src/main/java/io/prestosql/decoder/dummy/DummyRowDecoderFactory.java/DummyRowDecoderFactory/create
class DummyRowDecoderFactory:    @Override
    public RowDecoder create(Map<String, String> decoderParams, Set<DecoderColumnHandle> columns)
    {
        return DECODER_INSTANCE;
    }