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From "Jacob Nowosatka (Closed) (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (OPENJPA-81) Bad error message when trying to query a Collection relation using dot notation
Date Tue, 22 Nov 2011 14:52:39 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-81?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jacob Nowosatka closed OPENJPA-81.
----------------------------------

    Resolution: Not A Problem
      Assignee: Jacob Nowosatka

Closing this issue because this the query is illegal and there is no issue with OpenJPA.

Thanks
                
> Bad error message when trying to query a Collection relation using dot notation
> -------------------------------------------------------------------------------
>
>                 Key: OPENJPA-81
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-81
>             Project: OpenJPA
>          Issue Type: Improvement
>          Components: diagnostics, query
>         Environment: openJPA 0.9.7
> MySQL 5.0.15
>            Reporter: Jakob Braeuchi
>            Assignee: Jacob Nowosatka
>            Priority: Minor
>
> the query over the 1:n relationship 'katergorien' 
> em.createQuery("select distinct k from KategorieGruppe k " +
>             		"where k.kategorien.bezeichnung like ?1 " +
>             		"order by k.bezeichnung asc");
> uses a wrong alias t2 in the generated SQL:
> SELECT DISTINCT t0.id, t0.bezeichnung FROM ekv2kategoriegruppe t0 INNER JOIN ekv2kategorie
t1 ON t0.id = t1.idGruppe WHERE (t2.bezeichnung LIKE ? ESCAPE '\\') ORDER BY t0.bezeichnung
ASC [params=(String) F%]
> Unknown column 't2.bezeichnung' in 'where clause' 

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