### Is your feature request related to a problem or challenge? For the same reasons as described for `ScalarUDFImpl` on https://github.com/apache/arrow-datafusion/issues/9289 we should allow user defined window functions to provide simplification rules ### Describe the solution you'd like Add `WindowUdfImpl::simplify`, following the model @jayzhan211 made in https://github.com/apache/arrow-datafusion/pull/9304 ### Describe alternatives you've considered _No response_ ### Additional context _No response_
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guojidan commentedon Mar 29, 2024
take
guojidan commentedon Mar 29, 2024
let me try 😄
alamb commentedon Mar 29, 2024
Thanks! My suggestion is to start this project with an example of how to use simplify (aka write the test first)