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https://issues.apache.org/jira/browse/IGNITE-3484?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Ozerov closed IGNITE-3484.
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> MVCC data structure for getAll operation
> ----------------------------------------
>
> Key: IGNITE-3484
> URL: https://issues.apache.org/jira/browse/IGNITE-3484
> Project: Ignite
> Issue Type: Task
> Components: cache
> Reporter: Alexey Goncharuk
> Assignee: Semen Boikov
> Fix For: 2.4
>
>
> Need implement some data structure to store/get multiple entry versions:
> - committed value at first is stored in separate data structure (there also
> need store related tx id to filter out data for non-finished transactions),
> probably existing BPlusTree can be used
> - periodically need flush data for finished transaction in 'main' hash index
> - 'getAll' operation should include max 'visible' ID and list of active
> transactions, this information should be used to find last 'visible' version
> in 'mvcc' or 'main' index
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