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https://issues.apache.org/jira/browse/ARROW-16837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17554968#comment-17554968
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Antoine Pitrou commented on ARROW-16837:
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Note that some benchmarks offer unstable numbers so it might just be a false
positive.
> [C++] Investigate performance regressions observed in Unique,
> VisitArraySpanInline
> ----------------------------------------------------------------------------------
>
> Key: ARROW-16837
> URL: https://issues.apache.org/jira/browse/ARROW-16837
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
> Fix For: 9.0.0
>
>
> See discussion in https://github.com/apache/arrow/pull/13364
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