tustvold commented on issue #1572: URL: https://github.com/apache/arrow-datafusion/issues/1572#issuecomment-1013683820
> I propose using heap-sort for N-way merge > what's your opinion on the merging algorithm to choose? SGTM :+1:. This was in fact mentioned on the original PR that added the operator [here](https://github.com/apache/arrow-datafusion/pull/379#discussion_r637948151) and led to the filing of #416. I would describe the current `SortPreservingMergeStream` somewhat as an MVP, at the time I did not have a need to support a large number of partitions and so went with simple and stupid. It would be really cool for this component to get some love, I suspect there is substantial potential for performance improvement both in algorithm and implementation :+1: -- 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]
