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https://issues.apache.org/jira/browse/IGNITE-4629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15854243#comment-15854243
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Konstantin Dudkov commented on IGNITE-4629:
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[TC
tests|http://ci.ignite.apache.org/project.html?projectId=IgniteTests&tab=projectOverview&branch_IgniteTests=pull%2F1500%2Fhead]
> Optimization: store value of indexed field in H2Tree
> ----------------------------------------------------
>
> Key: IGNITE-4629
> URL: https://issues.apache.org/jira/browse/IGNITE-4629
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Reporter: Semen Boikov
> Assignee: Konstantin Dudkov
> Fix For: 2.0
>
>
> Currently we store only 'link' in H2Tree and to do comparison we read lock
> data page and copy row data into GridH2Row. If indexed value is primitive
> then it is possible to store this value in H2Tree, so get value for
> comparison will be just Unsafe.getInt/getLong.
> Prototype is implemented in ignite-3477-idx. (branch is based on ignite-3477).
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