Github user cloud-fan commented on the issue:
https://github.com/apache/spark/pull/21156
A high-level question: will we hit perf regression here? It seems to me
that, using fewer join keys can lead to less parallelism or data skewness.--- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
