[GitHub] [arrow-datafusion] jorgecarleitao commented on pull request #342: Left join could use bitmap for left join instead of Vec

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jorgecarleitao commented on pull request #342:
URL: https://github.com/apache/arrow-datafusion/pull/342#issuecomment-841762453


   Thanks a lot @boaz-codota !
   
   Is there any performance difference? imo It would be good to measure before 
adding a dependency.
   
   Note that arrow also has an `BooleanBufferBuilder` or something that can 
create a bitmap.


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