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https://issues.apache.org/jira/browse/ARROW-85?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15214360#comment-15214360
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Wes McKinney commented on ARROW-85:
-----------------------------------
The `Equals` method compares the buffers' *contents*, so you need to compare
the memory somehow.
> C++: memcmp is too expensive for Buffer's Equal
> -----------------------------------------------
>
> Key: ARROW-85
> URL: https://issues.apache.org/jira/browse/ARROW-85
> Project: Apache Arrow
> Issue Type: Improvement
> Reporter: Kai Zheng
>
> It looks too expensive to use memcmp to compare two buffers. Instead, the
> starting address and length/capacity would be good enough to use. Higher
> level codes relying on memcmp behaviour can be done in higher level.
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