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From "Howard (JIRA)" <j...@apache.org>
Subject [jira] Commented: (OPENJPA-1720) MappingTool does not add version column for subclass
Date Tue, 28 Sep 2010 14:10:32 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-1720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12915753#action_12915753
] 

Howard commented on OPENJPA-1720:
---------------------------------

I will use your suggested workaround (put version field in parent instead child).  However,
this doubles the number of UPDATE queries whenever child field changes are persisted ... one
UPDATE on the parent version field + one UPDATE on the "dirty" child fields.  Can this no-version-field-in-child
bug be fixed so I can avoid this extra overhead?

> MappingTool does not add version column for subclass
> ----------------------------------------------------
>
>                 Key: OPENJPA-1720
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1720
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 2.0.0
>            Reporter: Howard
>            Assignee: Fay Wang
>         Attachments: jpa_test.zip, OPENJPA-1720.patch
>
>
> MappingTool does not add version column for subclass

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