Rachelint opened a new issue, #12455: URL: https://github.com/apache/datafusion/issues/12455
### Is your feature request related to a problem or challenge? For measuring the performance improvement of #11827 , some extended queries with `more complex udaf(like median, approx_median)` + `high cardinality group by` are needed #12438 . But I found, such queries can't run to get the result in my local. After debugging, I found it is due to their large intermdiate results which will full memory rapidly, leading to swap or oom... However, when I run it in a subset with only 15% of the whole clickbench dataset, they can finish successfully and reflect the improvement https://github.com/apache/datafusion/pull/11827#issuecomment-2347092811 I think maybe we need a clickbench with the smaller dataset (like tpch 1, tpch 10...) in some situations. ### Describe the solution you'd like Support to generate a samller dataset of the whole clickbench dataset, and we can run queries on it. ### Describe alternatives you've considered _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: [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]
