cloud-fan commented on PR #43435: URL: https://github.com/apache/spark/pull/43435#issuecomment-1769985482
`AQEShuffleRead` should probably return a different partitioning, e.g. `CoalescedHashPartitioning`. It still satisfies `ClusterDistribution`, so `Aggregate` is fine and there will be no shuffle. For joins, two `CoalescedHashPartitioning`s are compatible if they have the same original partition number and coalesce boundaries, and `CoalescedHashPartitioning` is not compatible with `HashPartitioning`. -- 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]
