rluvaton opened a new pull request, #8696:
URL: https://github.com/apache/arrow-rs/pull/8696

   # Which issue does this PR close?
   
   N/A
   
   # Rationale for this change
   
   overriding this function improve performance over the fallback implementation
   
   # What changes are included in this PR?
   
   Override implementation of:
   - `count` which is not optimized away even when `ExactSizeIterator` is 
implemented
   - `nth` to avoid calling next `n + 1` times (which is also used when doing 
`.skip`)
   - `nth_back`
   - `last`
   - `max`
   
   # Are these changes tested?
   
   Yes, I've added a lot of tests
   
   # Are there any user-facing changes?
   
   Nope


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