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From "Clemens Wyss (JIRA)" <j...@apache.org>
Subject [jira] Created: (JCR-2830) JCR-SQL2 : Query on large node-set is (too) slow even when offset and limit is used
Date Fri, 03 Dec 2010 10:53:12 GMT
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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