feat(python, rust): implement unique counts for boolean datatype

[henrikig]

Closes #16356

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.34%. Comparing base (3fe4cfe) to head (38ff3bf).

❗ Current head 38ff3bf differs from pull request most recent head 99e3c02

Please upload reports for the commit 99e3c02 to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #16588      +/-   ##
==========================================
- Coverage   81.37%   81.34%   -0.04%     
==========================================
  Files        1425     1424       -1     
  Lines      187669   187226     -443     
  Branches     2702     2698       -4     
==========================================
- Hits       152720   152301     -419     
+ Misses      34453    34429      -24     
  Partials      496      496              

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[mcrumiller]

@ritchie46 can answer better here, but I think if we're spending the energy rechunking a series (which mem copies), the original array should receive the benefit as well, which you can do by making ca mut and calling *ca.rechunk().

[henrikig]

Might be. However, I can't see this being done anywhere else in the codebase, which makes me question whether it should be done, so will wait for Ritchie's answer.

I guess you meant @ritchie46 btw.

[codspeed-hq]

CodSpeed Performance Report

Merging #16588 will not alter performance

_{Comparing henrikig:implement-unique-counts-for-boolean (99e3c02) with main (3fe4cfe)}

Summary

✅ 37 untouched benchmarks

[ritchie46]

@henrikig can you use this trait for determining the unique values.

#16765

[henrikig]

@henrikig can you use this trait for determining the unique values.

#16765

@ritchie46 I could make some simplifications in the code when the unique count is 1 (see 38ff3bf for details). Were there any other particular use cases for this trait that you thought of? If so its not immediately apparent to me as I think we still need the actual counts and order.