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https://issues.apache.org/jira/browse/ARROW-8979?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney resolved ARROW-8979.
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Fix Version/s: 1.0.0
Resolution: Fixed
Issue resolved by pull request 7340
[https://github.com/apache/arrow/pull/7340]
> [C++] Implement bitmap word reader and writer
> ---------------------------------------------
>
> Key: ARROW-8979
> URL: https://issues.apache.org/jira/browse/ARROW-8979
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Yibo Cai
> Assignee: Yibo Cai
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> Below three Jira tasks optimize bitmap operations(logical, copy, compare,
> etc) unaligned case. They use word-by-word approach instead of bit-by-bit to
> improve performance.
> There are some common code of read/write bitmap in words. It's better to
> implement word based bitmap reader and writer to wrap similar function and
> reduce code redundancy.
> https://issues.apache.org/jira/browse/ARROW-8553
> https://issues.apache.org/jira/browse/ARROW-8843
> https://issues.apache.org/jira/browse/ARROW-8844
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