[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3034) Cannot avoid extra query due to one-to-one mapping

[tamal das (JIRA)]

Cannot avoid extra query due to one-to-one mapping
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                 Key: HHH-3034
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3034
             Project: Hibernate3
          Issue Type: Bug
          Components: query-hql
    Affects Versions: 3.2.1
         Environment: Hibernate : 3.2.1 ga
Database : Oracle 10g
            Reporter: tamal das
         Attachments: jra issue.zip

Hi I have 4 table.Namely - Tkt,BoxTkt,CusipTkt and TktAudTrl.
Tkt has 1-1 relationship with both BoxTkt and CusipTkt.
Tkt has 1- many relationship with TktAudTrl
BoxTkt and CusipTkt have share the same primary key of Tkt.

Now when I want to perform this following hql :
from TktAudTrl at join at.tkt where at.tkt.tktNo = ?

select query for both BoxTkt and CusipTkt is also fired.

I can stop that by making constrained = true in tkt.hbm.xml in one to one mapping for boxtkt.
But this makes BoxTKt anad CusipTkt NOT NULL in Tkt which is not the case.

How can I stop this?

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