alamb opened a new issue, #7198: URL: https://github.com/apache/arrow-datafusion/issues/7198
### Is your feature request related to a problem or challenge? The following query pattern shows up in many of our usecases: ```sql SELECT tag, field, max(time) FROM t GROUP BY tag ORDER BY max(time) DESC LIMIT 10 ``` There may also be predicates In English this query returns the top 10 groups that had the most recent values A more specific example, @JayjeetAtGithub found that the [Jaeger](https://www.jaegertracing.io/) tool issues this query to show the top ten most recent queries ### Describe the solution you'd like Implement some sort of optimization for this query ### Describe alternatives you've considered I believe https://github.com/apache/arrow-datafusion/issues/7191 / https://github.com/apache/arrow-datafusion/pull/7192 from @avantgardnerio is designed for this use case, so that may be sufficient. I did think it was worth documenting the actual end user effect of the change as a separate item which is why I filed this ticket ### 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]
