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https://issues.apache.org/jira/browse/KUDU-1644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16873493#comment-16873493
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Todd Lipcon commented on KUDU-1644:
-----------------------------------
Worth noting there's also the case where the merging of the DRS bounds with the
IN-list can fully eliminate the DRS (ie the predicate converts to 'None') in
which case the rowset can be skipped. I don't know if we implement that
optimization today but seems again like an easy win.
> Simplify IN-list predicate values based on tablet partition key or rowset PK
> bounds
> -----------------------------------------------------------------------------------
>
> Key: KUDU-1644
> URL: https://issues.apache.org/jira/browse/KUDU-1644
> Project: Kudu
> Issue Type: Sub-task
> Components: tablet
> Reporter: Dan Burkert
> Priority: Major
>
> When new scans are optimized by the tablet, the tablet's partition key bounds
> aren't taken into account in order to remove predicates from the scan. One
> of the most important such optimizations is that IN-list predicates could
> remove values based on the tablet's constraints.
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