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https://issues.apache.org/jira/browse/OPENJPA-546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12589771#action_12589771
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Georgi Naplatanov commented on OPENJPA-546:
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This behavior is for only un-enhanced entities.
Thanks to Rajeev Jha.
This bug report should be closed.
> Generates SQL update for unchanged entities within transaction
> --------------------------------------------------------------
>
> Key: OPENJPA-546
> URL: https://issues.apache.org/jira/browse/OPENJPA-546
> Project: OpenJPA
> Issue Type: Improvement
> Affects Versions: 1.0.2
> Environment: OpenJPA 1.0.2
> PostgreSQL 8.3.0 and probably for other RDBMS
> Reporter: Georgi Naplatanov
>
> OpenJPA generates and executes SQL update for unchanged entities within
> transaction.
> Example:
> factory =
> Persistence.createEntityManagerFactory("....",System.getProperties()) ;
> em = factory.createEntityManager() ;
> em.getTransaction().begin() ;
> Query q = em.createQuery("SELECT ......... ");
> List l = q.getResultList() ;
> System.out.println(l.size()) ;
> em.getTransaction().commit() ;
> em.close() ;
> factory.close() ;
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