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https://issues.apache.org/jira/browse/PARQUET-1523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16761048#comment-16761048
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Wes McKinney commented on PARQUET-1523:
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OK. Do you want to try to remove the usages of "extern template class" while
you are at it?
> [C++] Vectorize comparator interface
> ------------------------------------
>
> Key: PARQUET-1523
> URL: https://issues.apache.org/jira/browse/PARQUET-1523
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-cpp
> Reporter: Wes McKinney
> Assignee: Deepak Majeti
> Priority: Major
> Fix For: cpp-1.6.0
>
>
> The {{parquet::Comparator}} interface yields scalar virtual calls on the
> innermost loop. In addition to removing the usage of
> {{PARQUET_TEMPLATE_EXPORT}} as with other recent patches, I propose to
> refactor to a vector-based comparison to update the minimum and maximum
> elements in a single virtual call
> cc [~mdeepak] [~xhochy]
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