[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2266) Incorrect SQL emitted for EJB query involving COUNT()
Manuel Mall (JIRA)
noreply at atlassian.com
Thu Sep 13 13:25:14 EDT 2007
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_28091 ]
Manuel Mall commented on HHH-2266:
----------------------------------
Not sure that is a valid workaround in JPA QL. 'select count(*) ' is definitely not allowed in JPA QL and the JPA QL equivalent 'select(identification variable)' is what is broken for composite keys.
> Incorrect SQL emitted for EJB query involving COUNT()
> -----------------------------------------------------
>
> Key: HHH-2266
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2266
> Project: Hibernate3
> Issue Type: Bug
> Components: core
> Affects Versions: 3.2.0.ga
> Environment: Hibernate 3.2 / MySQL 4.1.xx
> Reporter: Manuel Mall
> Attachments: hibbug.zip, model.zip
>
>
> If you have an entity with a composite id and query it like:
> select count(e) from Entity e
> the emitted SQL looks like
> SELECT COUNT(e.id1, e.id2) FROM Entity
> However, this is at least according to MySQL invalid SQL as the COUNT function can have only one argument.
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