[jboss-jira] [JBoss JIRA] (AS7-4135) Count query on classes mapped as EmbeddedId with multiple Id's fail to execute

[Scott Marlow (JIRA)]

     [ https://issues.jboss.org/browse/AS7-4135?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Scott Marlow resolved AS7-4135.
-------------------------------

    Resolution: Won't Fix


This is a Hibernate issue, create a HHH jira for it.
                
> Count query on classes mapped as EmbeddedId with multiple Id's fail to execute 
> -------------------------------------------------------------------------------
>
>                 Key: AS7-4135
>                 URL: https://issues.jboss.org/browse/AS7-4135
>             Project: Application Server 7
>          Issue Type: Bug
>          Components: JPA / Hibernate
>    Affects Versions: 7.1.1.Final
>         Environment: Verified on MySQL and MariaDB
>            Reporter: Ståle Pedersen
>            Assignee: Scott Marlow
>            Priority: Critical
>
> When doing a count on a class mapped as EmbeddedId with multiple Id's the generated sql will fail on several db's (tested on MySQL/MariaDB) since hibernate generate a count sql containing all the id's.
> Hibernate creates a different (correct) sql on classes mapped with IdClass and multiple Id's.
> A simple test that verify the difference between the two:
> https://github.com/stalep/hibernate-orm/commit/54911765de7981ec9a2318fc9928be68ff37bab3

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