Dandandan commented on issue #13586: URL: https://github.com/apache/datafusion/issues/13586#issuecomment-2529145431
> > Possibly it's used via `SortExec`? This AFAIK also merges larger inputs via `SortPreservingMergeStream`. > > You are right, I missed this. I think `ExternalSorter` uses merging, while merging chunks written to the disc. I think even when not writing to disk if the size of batches are bigger than `self.sort_in_place_threshold_bytes` it will use SPM. This could be something to tweak as well 🤔 -- 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 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
