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https://issues.apache.org/jira/browse/KUDU-646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Wang reassigned KUDU-646:
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Assignee: (was: Andrew Wang)
> Check the scan type before applying the selection vector
> --------------------------------------------------------
>
> Key: KUDU-646
> URL: https://issues.apache.org/jira/browse/KUDU-646
> Project: Kudu
> Issue Type: Improvement
> Components: perf, tablet
> Affects Versions: M5
> Reporter: Andrew Wang
> Priority: Trivial
>
> As pointed out during code review of the MergeIterator, after merging the
> selection vector is all true (all rows selected).
> This means during a scan, if we are using the MergeIterator, we can skip
> checking the resulting SelectionVector. This will save us some CPU.
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