ameyc opened a new issue, #11366: URL: https://github.com/apache/datafusion/issues/11366
### Is your feature request related to a problem or challenge? Currently DataFusion somewhat supports computations over Unbounded data, with `SymmetricHashJoinExec` being able to join unbounded streams of data. However ability to aggregate over unbounded data seems to be missing in project as yet. In stream processing, aggregating over windows of streaming data is a common concept. A Streaming Window however behaves more like an `AggregationExec` than a `WindowExec`, we have a [POC StreamingWindowExec](https://github.com/probably-nothing-labs/arrow-datafusion/blob/main/datafusion/physical-plan/src/continuous/window.rs#L197-L211) built off a fork of DataFusion 39.0. We would like to collaborate with the community to upstream this operator as well improve the design. ### Describe the solution you'd like _No response_ ### 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