[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-4794) "is empty" with inner join generates invalid sql select and invalid results

[Ramon Casha (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-4794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=35223#action_35223 ] 

Ramon Casha commented on HHH-4794:
----------------------------------

Note: Same happens with the "left inner join" syntax instead of in(T.details)

> "is empty" with inner join generates invalid sql select and invalid results
> ---------------------------------------------------------------------------
>
>                 Key: HHH-4794
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4794
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: query-hql
>    Affects Versions: 3.3.2
>         Environment: Hibernate version as provided with Netbeans 6.8 (Hibernate EntityManager 3.3.2.GA, Hibernate Annotations 3.3.1.GA)
> DBMS: Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production; With the OLAP and Data Mining options
>            Reporter: Ramon Casha
>         Attachments: testcase.zip
>
>
> Given two simple entities, Master and Detail which have a OneToMany relationship:
> The following JPQL query...
> Select T from Master T, in(T.details) D where D is empty
> generates the following SQL:
> [1]  select master0_.id as id0_ 
> [2]  from Master master0_ 
> [3]  inner join Detail details1_ on master0_.id=details1_.master_id 
> [4]  where  not (exists (select details1_.id from Detail details1_));
> Line 4 is incorrect! The alias created there (details1_) is DIFFERENT from details1_ on line 3, so the subquery runs over the entire table, not the inner-joined table in line 3.
> Testcase included

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