presto-record-decoder/src/main/java/io/prestosql/decoder/raw/RawRowDecoder.java/RawRowDecoder/RawRowDecoder
class RawRowDecoder:    public RawRowDecoder(Set<DecoderColumnHandle> columnHandles)
    {
        requireNonNull(columnHandles, "columnHandles is null");
        columnDecoders = columnHandles.stream()
                .collect(toImmutableMap(identity(), this::createColumnDecoder));
    }