pepijnve commented on issue #11570:
URL: https://github.com/apache/datafusion/issues/11570#issuecomment-3860506484

   In the context of the review of #19994 it became clear that some further 
optimisation work could be done in the general 'expression or expression' code 
path. That has been merged in #20097.
   
   What can still be improved further, and would benefit divide by zero 
protection with few zero denominators, is the `scatter` function. Profiling 
shows that in the "10% zeroes" benchmark, that `scatter` chews up just over 50% 
of elapsed time.
   
   <img width="1410" height="251" alt="Image" 
src="https://github.com/user-attachments/assets/06ec6802-ecc9-449a-a1b9-843b7176aab2";
 />


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