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From "Michael Dick (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-1944) Extra select statements executed when version column is null.
Date Fri, 18 Feb 2011 14:37:38 GMT
Extra select statements executed when version column is null. 
--------------------------------------------------------------

                 Key: OPENJPA-1944
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1944
             Project: OpenJPA
          Issue Type: Bug
    Affects Versions: 1.2.2, 2.1.0
            Reporter: Michael Dick
            Assignee: Michael Dick
             Fix For: 2.2.0


This problem was originally reported on the users mailing list by Diego Cattelan. Link to
the thread :http://openjpa.208410.n2.nabble.com/N-query-problem-with-Version-td6027619.html

The problem occurs if a null value is returned for an entity's version field. In this case
OpenJPA will issue a second select statement to re-fetch the version, potentially resulting
in a lot of repetitive SQL statements. 

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