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https://issues.apache.org/jira/browse/ARROW-9034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney resolved ARROW-9034.
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Resolution: Fixed
Issue resolved by pull request 7356
[https://github.com/apache/arrow/pull/7356]
> [C++] Implement binary (two bitmap) version of BitBlockCounter
> --------------------------------------------------------------
>
> Key: ARROW-9034
> URL: https://issues.apache.org/jira/browse/ARROW-9034
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Wes McKinney
> Assignee: Wes McKinney
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> The current BitBlockCounter from ARROW-9029 is useful for unary operations.
> Some operations involve multiple bitmaps and so it's useful to be able to
> determine the block popcounts of the AND of the respective words in the
> bitmaps. So each returned block would contain the number of bits that are set
> in both bitmaps at the same locations
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