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https://issues.apache.org/jira/browse/IGNITE-18901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Orlov resolved IGNITE-18901.
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Resolution: Fixed
Was done in IGNITE-20502
> Sql. ColocationGroup refactoring
> --------------------------------
>
> Key: IGNITE-18901
> URL: https://issues.apache.org/jira/browse/IGNITE-18901
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Konstantin Orlov
> Assignee: Konstantin Orlov
> Priority: Major
> Labels: ignite-3
>
> Currently, ColocationGroup has two-dimensional list of assignments, where
> first dimension is partition id, and the second is list of nodes handling
> this partition. Keeping in mind that placement driver will told us which
> partition should be handled by which node, having two dimensions seems like
> unreasonably complex design. Besides, there is actually no place that expects
> to see all possible replicas in second dimension.
> The second dimension can be safely eliminated in sake of code simplicity.
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