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Posted to dev@openjpa.apache.org by "Michael Dick (JIRA)" <ji...@apache.org> on 2011/02/22 03:06:41 UTC
[jira] Resolved: (OPENJPA-1944) Extra select statements executed
when version column is null.
[ https://issues.apache.org/jira/browse/OPENJPA-1944?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Dick resolved OPENJPA-1944.
-----------------------------------
Resolution: Fixed
> 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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