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https://issues.apache.org/jira/browse/OAK-2110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15108369#comment-15108369
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Julian Reschke commented on OAK-2110:
-------------------------------------
Status update:
for RDBDocumentStore, we have added RDB-specific queries similar to what has
been used for Mongo. We have *not* changed the DB schema yet; adding SDTYPE as
column might improve things further but will require careful planning with
respect to migrating existing repositories.
> potential performance issues with VersionGarbageCollector
> ---------------------------------------------------------
>
> Key: OAK-2110
> URL: https://issues.apache.org/jira/browse/OAK-2110
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: doc, mongomk, rdbmk
> Reporter: Julian Reschke
> Assignee: Julian Reschke
> Fix For: 1.6
>
>
> This one currently special-cases Mongo. For other persistences, it
> - fetches *all* documents
> - filters by SD_TYPE
> - filters by lastmod of versions
> - deletes what remains
> This is not only inefficient but also fails with OutOfMemory for any larger
> repo.
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