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From "Jakob Braeuchi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (OPENJPA-81) Bad error message when trying to query a Collection relation using dot notation
Date Tue, 14 Nov 2006 19:38:37 GMT
    [ http://issues.apache.org/jira/browse/OPENJPA-81?page=comments#action_12449747 ] 
            
Jakob Braeuchi commented on OPENJPA-81:
---------------------------------------

i had to put the alias behind the braces to make it work with hibernate:

select distinct k from KategorieGruppe k, in(k.kategorien) kat where kat.bezeichnung like
?1 


> Bad error message when trying to query a Collection relation using dot notation
> -------------------------------------------------------------------------------
>
>                 Key: OPENJPA-81
>                 URL: http://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
>            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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