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From "Ravi P Palacherla (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (OPENJPA-2066) Edge case in openJPA-1227. openJPA fails to create a join and thus returns wrong data when a collection is selected from superclass and another field is selected from subclass twoor more levels down the hierarchy.
Date Wed, 26 Oct 2011 00:44:32 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-2066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ravi P Palacherla updated OPENJPA-2066:
---------------------------------------

    Attachment: OPENJPA2066_11x.diff

Patch contributed by Hiroki Tateno.
Test case contributed by Ravi Palacherla.
                
> Edge case in openJPA-1227. openJPA fails to create a join and thus returns wrong data
when a collection is selected from superclass and another field is selected from subclass
twoor more levels down the hierarchy.
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-2066
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-2066
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 1.1.1, 2.1.1
>            Reporter: Ravi P Palacherla
>            Priority: Minor
>             Fix For: 1.1.1, 2.1.1
>
>         Attachments: OPENJPA2066_11x.diff
>
>
> openJPA-1227 fixes the wrong SQL generation error when superclass contains an eager to-many
field, and this is the only field selected in the superclass, and when one or more fields
are selected in the subclass, openjpa fails to create a join between the subclass and superclass.
But the issue still remains when one or more fields are selected from subclasses two levels
down the hierarchy.
> Example:
> GrandChildClass extends ChildChildClass extends ChildClass extends ParentClass.
> When I select a filed from GrandChildClass and a to-many field from ParentClass then
openjpa fails to create a join between the classes.

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