andygrove opened a new issue, #15676: URL: https://github.com/apache/datafusion/issues/15676
### Describe the bug In the Comet subproject, we have a PR where we are upgrading to use the latest DataFusion revision from main in preparation for upgrading to DataFusion 47 (https://github.com/apache/datafusion-comet/pull/1563). After bumping the revision from `784df33f8930f91eada0d67aa5acc25a4c25cea2` to `b22e4d26480202247022bf2c94ba629a07e3275b`, we see some tests start to fail, such as: `multiple group-by columns + single aggregate column, with nulls` ``` 2025-04-10T17:13:49.0990050Z == Results == 2025-04-10T17:13:49.0990580Z !== Correct Answer - 2 == == Spark Answer - 2 == 2025-04-10T17:13:49.0991090Z struct<_g1:tinyint,_g2:smallint,last(_3):int> struct<_g1:tinyint,_g2:smallint,last(_3):int> 2025-04-10T17:13:49.0991750Z [null,null,null] [null,null,null] 2025-04-10T17:13:49.0992100Z ![0,0,9] [0,0,0] (QueryTest.scala:244) ``` It is also possible that the error is due to other changes in Comet and not related to DataFusion. I will update this issue once I know more. ### To Reproduce _No response_ ### Expected behavior _No response_ ### Additional context _No response_ -- 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: github-unsubscr...@datafusion.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org