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https://issues.apache.org/jira/browse/JCR-2830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12967112#action_12967112
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Serge Huber commented on JCR-2830:
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Does anyone know how SQL-1 does it ? It seems from the code that it lazy loads
the results, but how can it do so if sorting is needed ?
Best regards,
Serge Huber.
> JCR-SQL2 : Query on large node-set is (too) slow even when offset and limit
> is used
> -----------------------------------------------------------------------------------
>
> Key: JCR-2830
> URL: https://issues.apache.org/jira/browse/JCR-2830
> Project: Jackrabbit Content Repository
> Issue Type: Improvement
> Affects Versions: 2.3.0
> Environment: + Win7 (64bit)
> + JR built from latest greatest sources
> + repo with many nodes of same node type > 77'000
> Reporter: Clemens Wyss
>
> Given a node-set of approx 77'000 entries a SQL2-query limited to 10 nodes
> takes approx 37 to 59sec (!) whereas the corresponding SQL returns in less
> than 1sec.
> Query q = session.getWorkspace().getQueryManager().createQuery( "select *
> from [task]", Query.SQL2 );
> q.setOffset( 0 ); // or any other offset
> q.setLimit( 10 );
> returnValue = q.execute();
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