presto-orc/src/main/java/io/prestosql/orc/metadata/OrcMetadataReader.java/OrcMetadataReader/toType
class OrcMetadataReader:    private static ColumnMetadata<OrcType> toType(List<OrcProto.Type> types)
    {
        return new ColumnMetadata<>(types.stream()
                .map(OrcMetadataReader::toType)
                .collect(toImmutableList()));
    }