presto-orc/src/main/java/io/prestosql/orc/metadata/OrcType.java/OrcType/OrcType
class OrcType:    private OrcType(OrcTypeKind orcTypeKind, int precision, int scale)
    {
        this(orcTypeKind, ImmutableList.of(), ImmutableList.of(), Optional.empty(), Optional.of(precision), Optional.of(scale));
    }