sunjincheng121 commented on issue #7664: [FLINK-11449][table] Uncouple the Expression class from RexNodes. URL: https://github.com/apache/flink/pull/7664#issuecomment-465584649 Hi Thanks for the great proposal about split the PR. @twalthr ! According to your comments, PR has been fine-grained split. Currently, each commit is self-contained and is a function-independent change. The last commit is to remove the join (udtf), most of which is to delete the code, and fix the test case. But i also can open a new PR for last commit, if you think that `removing join(udtf)` commit needs to be submitted in a separate PR. Best, Jincheng
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