peter-toth commented on issue #26044: [SPARK-29375][SQL] Exchange reuse across all subquery levels URL: https://github.com/apache/spark/pull/26044#issuecomment-554993573 @maropu I also run TPCDS queries and the following queries have modified plans after the PR: - q14a - q14b - q23a - q23b - q24a - q24b - q14-v2.7 - q14a-v2.7 - q24-v2.7 Here are the plans [before](https://github.com/peter-toth/spark/blob/SPARK-29375-exchange-reuse-report/plans-before.txt) and [after](https://github.com/peter-toth/spark/blob/SPARK-29375-exchange-reuse-report/plans-after.txt) the PR. Benchmark results can be found here [before](https://github.com/peter-toth/spark/blob/SPARK-29375-exchange-reuse-report/perf-before.txt) and [after](https://github.com/peter-toth/spark/blob/SPARK-29375-exchange-reuse-report/perf-after.txt) the PR. This [comparison](https://github.com/peter-toth/spark/blob/SPARK-29375-exchange-reuse-report/perf-report.tsv) shows that q24a, q24b and q24-v2.7 become 1.4x times faster due to this change.
---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
