[ 
http://issues.apache.org/jira/browse/OPENJPA-81?page=comments#action_12449737 ] 
            
Jakob Braeuchi commented on OPENJPA-81:
---------------------------------------

hi marc,

yes KategorieGruppe.kategorien is a collection and it's supported by both 
toplink and hibernate.
if it's illegal, i'll have to rewrite the query.

thanks
jakob


> 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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