jayzhan211 commented on PR #10062:
URL: 
https://github.com/apache/arrow-datafusion/pull/10062#issuecomment-2053883225

   To support replacing window first/last, there are many issues to be solved. 
   
   Including replacing first/last in convert_firsts_last rule, and support 
sliding accumulator for udaf, and support list instead of NUMERIC signature.
   


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