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https://issues.apache.org/jira/browse/ARROW-8843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yibo Cai updated ARROW-8843:
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Summary: [C++] Optimize BitmapEquals unaligned case (was: [C++] Optimize
BItmapEquals unaligned case)
> [C++] Optimize BitmapEquals unaligned case
> ------------------------------------------
>
> Key: ARROW-8843
> URL: https://issues.apache.org/jira/browse/ARROW-8843
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Yibo Cai
> Assignee: Yibo Cai
> Priority: Major
>
> BitmapEquals unaligned case compares two bitmap bit-by-bit[1]. Similar tricks
> in this PR[2] may also be helpful here to improve performance by processing
> in words.
> [1]
> https://github.com/apache/arrow/blob/e5a33f1220705aec6a224b55d2a6f47fbd957603/cpp/src/arrow/util/bit_util.cc#L248-L254
> [2] https://github.com/apache/arrow/pull/7135
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