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https://issues.apache.org/jira/browse/JCR-2715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12966965#action_12966965
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Serge Huber commented on JCR-2715:
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Thanks Clemens for the JRat data.
>From looking at it seems that the sorting of the results is taking up the most
>time, so I wonder how the sorting is done in the case of the SQL-1
>implementation ?
Jukka, is there a reason why we load all the data in the SQL-2/QOM
implementations at query execution time ?
Best regards,
Serge...
> Improved join query performance
> -------------------------------
>
> Key: JCR-2715
> URL: https://issues.apache.org/jira/browse/JCR-2715
> Project: Jackrabbit Content Repository
> Issue Type: Improvement
> Components: jackrabbit-core, query
> Reporter: Jukka Zitting
> Assignee: Jukka Zitting
> Fix For: 2.2.0
>
> Attachments: 2010-11-30_PM-04-55-23.zip, SQL2SearchTest.png,
> ThreeWayJoinTest.png, TwoWayJoinTest.png
>
>
> Our current implementation of SQL2 join queries does not perform very well on
> pretty much any non-trivial data set.
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