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https://issues.apache.org/jira/browse/OAK-2626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14548016#comment-14548016
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Julian Sedding commented on OAK-2626:
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Agreed, the changes you proposed in OAK-2882 make this patch redundant.
> Optimize binary comparison for merge during upgrade
> ----------------------------------------------------
>
> Key: OAK-2626
> URL: https://issues.apache.org/jira/browse/OAK-2626
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: upgrade
> Affects Versions: 1.1.7
> Reporter: Julian Sedding
> Priority: Minor
> Attachments: OAK-2626.patch, incremental-upgrade-no-changes.png
>
>
> In OAK-2619 I propose to support repeated upgrades into the same NodeStore.
> This issue does not optimizate the first run, but any subsequent run benefits
> from the proposed changes.
> One use-case for this feature is to import all content several days before
> the upgrade and then copy only the delta on the day of the upgrade.
> Assuming that both the source and target repositories use the same
> FileDataStore, binaries could be efficiently compared by their references.
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