Github user gatorsmile commented on the issue: https://github.com/apache/spark/pull/21537 We are fully swamped by the hotfix and regressions of 2.3 release and the new features that are targeting to 2.4. We should post some comments in this PR earlier. Designing an IR for our codegen is the right thing we should do. [If you do not agree on this, we can discuss about it.] How to design an IR is a challenging task. The whole community is welcome to submit the designs and PRs. Everyone can show the ideas. The best idea will win. @HyukjinKwon If you have a bandwidth, please also have a try
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