java.lang.UnsupportedOperationException: Unsupported type: UTF8String
	at org.apache.iceberg.arrow.vectorized.ArrowVectorAccessor.getUTF8String(ArrowVectorAccessor.java:82)
	at org.apache.iceberg.spark.data.vectorized.IcebergArrowColumnVector.getUTF8String(IcebergArrowColumnVector.java:140)
	at org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIteratorForCodegenStage1.sort_addToSorter_0$(Unknown Sour

  private static PrimitiveWriter<UTF8String> uuids(ColumnDescriptor desc) {
    return new UUIDWriter(desc);
  }

  private static class UUIDWriter extends PrimitiveWriter<UTF8String> {
    private ByteBuffer buffer = ByteBuffer.allocate(16);

    private UUIDWriter(ColumnDescriptor desc) {
      super(desc);
    }

    @Override
    public void write(int repetitionLevel, UTF8String string) {
      UUID uuid = UUID.fromString(string.toString());
      buffer.rewind();
      buffer.putLong(uuid.getMostSignificantBits());
      buffer.putLong(uuid.getLeastSignificantBits());
      buffer.rewind();
      column.writeBinary(repetitionLevel, Binary.fromReusedByteBuffer(buffer));
    }
  }