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https://issues.apache.org/jira/browse/IGNITE-6703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Ozerov updated IGNITE-6703:
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Component/s: sql
> Unnecessary lookup in BPlusTree.ForwardCursor.fillFromBuffer for startIdx 0
> ---------------------------------------------------------------------------
>
> Key: IGNITE-6703
> URL: https://issues.apache.org/jira/browse/IGNITE-6703
> Project: Ignite
> Issue Type: Improvement
> Security Level: Public(Viewable by anyone)
> Components: sql
> Reporter: Semen Boikov
> Labels: performance
>
> fillFromBuffer calls findLowerBound if passed startIdx=0,
> BPlusTree.ForwardCursor.fillFromBuffer can be called in 2 cases:
> 1. When lower bound is not known
> 2. When lower bound is found in BPlusTree.Search. It seems in this case 0 is
> valid value for startIdx and findLowerBound is not needed in this case.
> I it possible for example to change findLowerBound's contract and use -1 as
> 'unknown startIdx' value.
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