alamb opened a new pull request, #4149:
URL: https://github.com/apache/arrow-datafusion/pull/4149

   Draft as it builds on https://github.com/apache/arrow-datafusion/pull/4148
   
   # Which issue does this PR close?
   
   Closes https://github.com/apache/arrow-datafusion/issues/3702
   
   
   # Rationale for this change
   
   This will make predicate evaluation on unsigned columns faster in some cases
   
   
   # What changes are included in this PR?
   1. Add support for unsigned columns
   2. Add tests (using the harness I wrote in 
https://github.com/apache/arrow-datafusion/pull/4147)
   
   
   # Are these changes tested?
   
   Yes
   # Are there any user-facing changes?
   
   Predicates on unsigned columns should be faster


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