[GitHub] [iceberg] wobrycki commented on issue #4581: Spark: Cannot read or write UUID columns

["wobrycki (via GitHub)" <gi...@apache.org>]

wobrycki commented on issue #4581:
URL: https://github.com/apache/iceberg/issues/4581#issuecomment-1476479898

   @RussellSpitzer could you point us to the code, where the adjustments are needed? 
   Should it be `SparkValueReaders.java` and `SparkValueWriters.java`?
   
   I guess there is no test that writes the UUID column as it is not working yet, so we should probably adjust the tests like `TestSparkParquetWriter` as well.
   
   Normally uuids(ColumnDescriptor desc) returns an instance of ValueWriter<UTF8String> and not PrimitiveWriter<UTF8String>, what is the reason we are going for PrimitiveWriter here?


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