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https://issues.apache.org/jira/browse/OPENJPA-1720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12915847#action_12915847
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Fay Wang commented on OPENJPA-1720:
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Hi Howard,
With Joined table strategy, any update in Child will involve two update because
the version column is in the parent table, and the child field is in the Child
table. This is working as design. If you want to avoid the extra overhead, you
can use SINGLE Table strategy.
> 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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