jbrockmendel opened a new issue, #33769:
URL: https://github.com/apache/arrow/issues/33769

   ### Describe the bug, including details regarding any error messages, 
version, and platform.
   
   cc @jorisvandenbossche 
   
   For some methods (e.g., dictionary_encode xref #15226, mode, min_max) it is 
straightforward to cast to integer, compute, then cast back.  For quantile I've 
found doing this breaks a bunch of pandas tests (or more accurately, fails to 
fix existing xfails).  I speculate that this has to do with lossiness in 
int->float->int conversions.
   
   ### Component(s)
   
   Python


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