lxian commented on PR #36823: URL: https://github.com/apache/spark/pull/36823#issuecomment-1151036609
> Left semi join has a disadvantage: the left side can't build broadcast join even it is vary small. I didn't realised that. I was working on a case that the aggregation side is large and this transformation can benefit. How about checking if the aggregation side with canBroadcastBySize() before this transformation ? -- 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]
