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Hibernate version:2.1.4

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Hi all,

I have a parent child relationship where parent has set of children (bi-directional one-to-many).
I am trying retreive parent objects by child attributes using HQL. As relation from parent to child is 1-*
I am getting duplicate parent objects and when I apply distinct key word I am getting expected results.
But as the query results could be big I need to apply setMaxResults on the query but this is causing problem.
It distincts over rownumber() rather than parent Id again I am getting duplicate results.


My HQL looks as below


select distinct c.parent
from com.abc.Child c
where c.attr1 = ?


Without setMaxResults() on Query it works fine but not when it is applied..
generated SQL for DB2 is as below


select * from ( select distinct rownumber() over() as row_,...) ) as temp_ where row_ <= ?


Anyone have any suggestions on how to avoid duplicates.Thanks you all.



Regards,

This problem cannot be solved in SQL, and hence not in Hibernate.