hequn8128 commented on issue #9141: [FLINK-12249][table] Fix type equivalence check problems for Window Aggregates URL: https://github.com/apache/flink/pull/9141#issuecomment-513142925 @dawidwys @godfreyhe @wuchong @sunjincheng121 Hi, I have updated the PR with the latest solution: Change the types to the inferred types in the Aggregate and then cast back in the Project after Aggregate. I think this makes sure the right semantics and also brings minor changes to the under-released Flink. The long term solution as we discussed in the jira ticket should be considered later after 1.9. Would be great if you can take a look. Best, Hequn
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