Github user cloud-fan commented on the issue:
https://github.com/apache/spark/pull/20295
How are you going to send the group columns? For a group we have only one
group row and a bunch of data rows.--- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
