peter-toth commented on PR #35334: URL: https://github.com/apache/spark/pull/35334#issuecomment-1203684886
@cloud-fan, @hvanhovell, I think this is a pretty good optimization. The old `compatiblePartitions()` was very compute intensive if `Window` nodes have a wide `partitionSpec`s. We have a customer who upgraded from Spark 2 to Spark 3 and due to the new `TransposeWindow` rule in Spark 3 suffered severe performance degradation... The PR probably needs a new ticket though. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
