cloud-fan commented on pull request #30555: URL: https://github.com/apache/spark/pull/30555#issuecomment-765111978
I can't refer to code in our private repo, but the problem is after `PullupCorrelatedPredicates`, the correlated scalar subquery has more output columns (because the outer references are pulled up), then we can't use the DELETE/UPDATE/MERGE conditions to build Dataset, as Analyzer requires that scalar subquery can only have one output column. We've reverted this commit internally and are unblocked, but I'm not sure if there are others implementing DELETE/UPDATE/MERGE like us and get broken. If no other complaints I'm OK to not revert it. I agree with the plan rewriting approach, and I'm looking forward to your design doc! ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
