Re: [hibernate-dev] Statements issued for unidirectional one-to-many with @JoinColumn

Actually, that pull request will only affect merging transient entities. Are you seeing the extra updates when merging? On Thu, Jan 21, 2016 at 1:09 PM, Gail Badner <gbadner(a)redhat.com&gt; wrote: > > Hi Gunnar, > > Can you try using this pull request for HHH-9979 [1] to see if the extra > updates go away? > > This pull request is already closed because I am going to use new > OperationContext functionality to fix HHH-9979. I know this pull request > does get rid of some updates, and the future one will as well. > > Thanks, > Gail > > [1] https://github.com/hibernate/hibernate-orm/pull/1067 > > > On Thu, Jan 21, 2016 at 3:25 AM, Gunnar Morling <gunnar(a)hibernate.org&gt; > wrote: >> >> Steve, all, >> >> I have a model with two entities, Parent and Child, and an >> unidirectional one-to-many association from the former to the latter. >> >> Via @JoinColumn on the association it is ensured that the Parent FK is >> stored in the Child table, i.e. without a separate join table. When >> inserting a Parent and several Child entities, I see the following >> statements: >> >> INSERT INTO parent (id, name) VALUES (?,?) >> >> INSERT INTO child (id, childname) VALUES (?,?) >> INSERT INTO child (id, childname) values (?,?) >> >> UPDATE CHILD SET Parent_id=? WHERE id=? >> UPDATE CHILD SET Parent_id=? WHERE id=? >> >> Why is it that the FK is propagated through separate updates instead >> of doing it as part of the Child insert? >> >> Thanks, >> >> --Gunnar >> _______________________________________________ >> hibernate-dev mailing list >> hibernate-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/hibernate-dev > >