924060929 commented on PR #61184: URL: https://github.com/apache/doris/pull/61184#issuecomment-4030870640
> > Hi @wuxueyang96 ! > > Thanks for submit this pr, and I already submit the same feature in #59006. But this feature will break local shuffle and compute the wrong result, so I revert it in #60823. So we should refactor local shuffle first, then we can support this feature. > > I'm not certainly sure that the local bucket shuffle is same to this pr. This pr want to eliminate shuffle actually no matter local bucket shuffle or global shuffle. My PR includes the function of eliminating exchange under set operation, because supporting bucket shuffle itself requires the other end to distribute according to the stored hash algorithm: the base end does not need shuffle, and if the other end does not meet the requirements, the other end needs to use bucket shuffle. If both ends are colored, then neither end needs to shuffle because they both satisfy the distribution of storing hash algorithms. So my PR is a superset of your PR, more abstract -- 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]
