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https://issues.apache.org/jira/browse/CAY-2855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jadon Hansell updated CAY-2855:
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Attachment: disjoint-by-id-issue.patch
> Vertical Inheritance: Fix Disjoint By Id Prefetch On Sub-Entity
> ---------------------------------------------------------------
>
> Key: CAY-2855
> URL: https://issues.apache.org/jira/browse/CAY-2855
> Project: Cayenne
> Issue Type: Bug
> Affects Versions: 4.2
> Reporter: Jadon Hansell
> Priority: Major
> Attachments: disjoint-by-id-issue.patch
>
>
> I ran into an issue with prefetching a belongs-to relationship whose target
> was the sub-entity of a vertical inheritance scenario. When {{disjointById}}
> is used, the select for the sub-entity looks for an ID of {{null}} instead of
> the actual ID assigned to the relationship.
> For example, lets say I have a base entity {{Base}}, a vertically inherited
> sub-entity {{Impl}}, and a separate entity called {{Other}}.
> If {{Other}} has a belongs-to relationship to {{Impl}} called
> {{Other.impl}}, attempting to use a {{disjointById}} prefetch on that
> relationship will always find no results.
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