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Posted to jira@kafka.apache.org by GitBox <gi...@apache.org> on 2021/08/21 04:35:15 UTC

[GitHub] [kafka] mjsax commented on pull request #11233: HOTFIX: Disable spurious left/outer stream-stream join fix

mjsax commented on pull request #11233:
URL: https://github.com/apache/kafka/pull/11233#issuecomment-903055614


   As pointed out on the 3.0 release discussion thread on the dev mailing list, it's really about preserving a clean upgrade path from the old join semantics to the new join semantic. If we just undo the join-fix but keep the API change, how can we enable the join fix later without potentially breaking an existing application?
   
   The idea was really, to enable the join-fix if the new API is used: his "forces" users to rewrite their code and to actively opt-in to the new join semantics.


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