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https://issues.apache.org/jira/browse/OAK-3716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15035865#comment-15035865
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Marcel Reutegger commented on OAK-3716:
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We'd have to be careful when such a change is introduced because previous
documents with _revisions entries are currently not garbage collected, whereas
documents that only contain _commitRoot entries are garbage collected.
> Rewrite change on split
> -----------------------
>
> Key: OAK-3716
> URL: https://issues.apache.org/jira/browse/OAK-3716
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core, documentmk
> Reporter: Marcel Reutegger
>
> For continuous revision GC and performance reasons it may be beneficial to
> rewrite changes when they are split to a previous document. A _commitRoot
> entry should be replace with a corresponding _revisions entry and the
> revision of a branch change replaced with the corresponding merge revision.
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