[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2667) 'illegal attempt to dereference collection' when using auto-join

[Tomasz Blachowicz (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_27318 ] 

Tomasz Blachowicz commented on HHH-2667:
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This seems to be serious issue. I've been working on large scale application and this problem blocks Hibernate upgrade. We're kind of stuck in 3.2.2. Do you think somone more advanced in Hibernate development could take a look at the problem?

> 'illegal attempt to dereference collection' when using auto-join
> ----------------------------------------------------------------
>
>                 Key: HHH-2667
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2667
>             Project: Hibernate3
>          Issue Type: Bug
>    Affects Versions: 3.2.3, 3.2.4, 3.2.4.sp1
>         Environment: I have found that behaviour in version 3.2.4.sp1 and 3.2.3 (I didn't test 3.2.4 pre sp1)
> Database: ORACLE 10g
>            Reporter: Martin Kouba
>
> After upgrading to the latest Hibernate version I got this error.
> I try to use a statement like this
> from cat c where c.mate.id = 13
> the expected resulting SQL should be something like
> SELECT * FROM CAT C WHERE C.MATE_ID = 13
> which is much more performant than making a join
> from cat c join c.mate m where m.id = 13
> which would result in something like that
> SELECT * FROM CAT C INNER JOIN MATE M ON C.MATE_ID = M.ID WHERE M.ID = 13
> This works as expected in 3.1.3, 3.2.0 and 3.2.2
> It doesn't work with version 3.2.3 and with 3.2.4.sp1.

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