mingmwang commented on issue #4230: URL: https://github.com/apache/arrow-datafusion/issues/4230#issuecomment-1316389109
For DataFusion, a possible fix is to maintain a global `visited_left_side` data structure. And for Ballista, we can not rely on any global structure, because different partitions are different tasks and can run on different machines, we can not run Collect Left mode for LeftJoin and FullJoin. -- 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...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
