andygrove opened a new issue, #3040: URL: https://github.com/apache/arrow-datafusion/issues/3040
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** Follow-on issue to address feedback in https://github.com/apache/arrow-datafusion/pull/3009 In particular: - Run some performance test and see if it would be better to use builders in the aggregate state rather than arrays. Should we just use `ScalarValue::List` instead? - Should we have a configurable limit on the number of values that can be collected to prevent OOM? - Can we leverage the `concat` and `take` kernels? - Should we add an `average` kernel to arrow-rs? - Can we reduce memory overhead with some form of compression (such as run-length encoding or maintaining a map of unique values with counts) **Describe the solution you'd like** See above **Describe alternatives you've considered** None **Additional context** None -- 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]
