[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-3335) HQL DELETE with sub-select creates invalid SQL

[Gail Badner (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gail Badner resolved HHH-3335.
------------------------------

      Assignee: Gail Badner
    Resolution: Duplicate

> HQL DELETE with sub-select creates invalid SQL
> ----------------------------------------------
>
>                 Key: HHH-3335
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3335
>             Project: Hibernate3
>          Issue Type: Bug
>          Components: query-hql
>    Affects Versions: 3.2.6
>         Environment: Oracle 10, Java 1.5
>            Reporter: John Baker
>            Assignee: Gail Badner
>
> Hello,
> Consider two objects, ISSO and Event, where ISSO extends Event and the id is called eventId (maps to variable id).  Event also has an attribute time.  Now consider this HQL:
> delete from ISSO e where e.id in (select ev.id from Event ev where ev.time < 123)
> I appreciate this could be written without the subselect but I've simplified a more complex subselect in order to demonstrate the problem.  This generates SQL that results in the following Oracle error:
> ORA-00918: column ambiguously defined
> The SQL generated is as follows:
> insert into HT_ISSO select isso0_.eventId as eventId from ISSO isso0_ inner join Event isso0_1_ on isso0_.eventId=isso0_1_.eventId 
> where eventId in (select event1_.eventId from Event event1_ where event1_.time<23)
> And the problem is the eventId following where.  This should be using the alias, i.e. the SQL should be:
> insert into HT_ISSO select isso0_.eventId as eventId from ISSO isso0_ inner join Event isso0_1_ on isso0_.eventId=isso0_1_.eventId 
> where isso0_.eventId in (select event1_.eventId from Event event1_ where event1_.time<23)
> That's it!  Can this be fixed?
> Thanks.

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