hql insert doesn't work when inserting into a table with composite-id
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Key: HHH-3400
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3400
Project: Hibernate3
Issue Type: Bug
Components: query-hql
Affects Versions: 3.2.6
Environment: 3.2.6GA, any database
Reporter: Ning Zhang
I have a table serving as an association table, so the Id of the table is just the ids from the linked tables. The mapping file looks like:
<class name="UserPt" table="user_pt" >
<composite-id>
<key-property name="userId" type="
java.lang.Long" column="user_id"/>
<key-property name="ptId" type="
java.lang.Long" column="pt_id"/>
</composite-id>
</class>
And I need to run some HQL to insert the association into the table like:
INSERT INTO UserPt(userId, ptId) SELECT user.id, pt.id FROM...........
Because of the complicated logic we have in the FROM statement, we cannot do this just by using collection mapping. When I run this HQL, it gives an error saying:
"can only generate ids as part of bulk insert with either sequence or post-insert style generators".
It looks like the hibernate is think the id is not set. I have tried different approaches like creating an separate id class, setting "mapped" to true, etc. But none of it solve the problem. The only thing I can do is defining a fake id in the hibernate mapping, which may introduce some problem in the future.
I would appreciate if someone can fix this issue or having some better work around for it. Thanks a lot.
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