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Date: Fri, 19 Apr 2013 00:07:16 +0000 (UTC)
From: "Pinaki Poddar (JIRA)" <jira@apache.org>
To: dev@openjpa.apache.org
Message-ID: <JIRA.12643463.1366330001626.190161.1366330036538@arcas>
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Subject: [jira] [Created] (OPENJPA-2373) MapsId in a Child entity to a
 Parent entity using auto-assigned identity fails with duplicte INSERT SQL
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Pinaki Poddar created OPENJPA-2373:
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             Summary: MapsId in a Child entity to a Parent entity using auto-assigned identity fails with duplicte INSERT SQL 
                 Key: OPENJPA-2373
                 URL: https://issues.apache.org/jira/browse/OPENJPA-2373
             Project: OpenJPA
          Issue Type: Bug
    Affects Versions: 2.2.1, 2.1.1, 2.0.1, 2.0.0
            Reporter: Pinaki Poddar
            Assignee: Pinaki Poddar
             Fix For: 2.3.0


A MapsId annotation in entity C (child) annotates a field p of type P (parent). P uses auto-generated identity. 
P-C is a bidirectional parent-child relationship.
 
During flush sequence, A row is created for P and flushed for the database to assign an identity. When C is flushed, it wrongly creates a row for P again while handling the field p that points to parent.

Of course, the commit breaks with a DuplicateKeyException on P's table. 

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