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https://issues.apache.org/jira/browse/OPENJPA-2373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13635905#comment-13635905
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ASF subversion and git services commented on OPENJPA-2373:
----------------------------------------------------------
Commit 1469653 from [[email protected]]
[ https://svn.apache.org/r1469653 ]
OPENJPA-2373: Add toString() for debugging
> 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: 2.0.0, 2.0.1, 2.1.1, 2.2.1
> 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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