nathanb9 opened a new issue, #22808: URL: https://github.com/apache/datafusion/issues/22808
### Is your feature request related to a problem or challenge? Follow-up to https://github.com/apache/datafusion/pull/22791 From @2010YOUY01's comment to clean up state splitting: ``` now: FetchingRight -> EmitLeftUnmatched proposed: FetchingRight -> ProbeEnd -> EmitLeftUnmatched ``` `EmitLeftUnmatched` currently both decides whether this partition emits unmatched-left rows (decrementing the shared probe counter) and does the emitting. Re-entry of that state caused the double-decrement bug fixed in https://github.com/apache/datafusion/pull/22791. A dedicated `ProbeEnd` state (entered once per chunk/partition when the right side is exhausted) would own the single `report_probe_completed()` call, making "decrement exactly once" a property of the state graph and removing the `probe_completed_reported` flag added in [#22791](https://github.com/apache/datafusion/pull/22791). No behavior change expected. ### 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
