NGA-TRAN opened a new issue, #10488: URL: https://github.com/apache/datafusion/issues/10488
### Is your feature request related to a problem or challenge? Yes, this is a task of https://github.com/apache/datafusion/issues/10316. We will use the porting `ProgressiveEval` to optimize `SortPreservingMerge` ### Describe the solution you'd like In InfluxDB IOx, when the inputs of `SortPreservingMerge` are all sorted on the sort key and their data do not overlap, we replace `SortPreservingMerge` with `ProgressiveEval` which: 1. Avoids starting all input streams at once 2. Avoids having to compare any keys (doesn't actually do a merge) We wrote about using this operator here: https://www.influxdata.com/blog/making-recent-value-queries-hundreds-times-faster/ This ticket is to port `ProgressiveEval` from InfluxDB to DataFusion ### 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: github-unsubscr...@datafusion.apache.org.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
