[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-1615) GROUP BY entity does not work

[Giampaolo Tomassoni (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_29476 ] 

Giampaolo Tomassoni commented on HHH-1615:
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Do you experience the same slowdown with both SQL queries or the second (the one with a subselect) is faster?

> GROUP BY entity does not work
> -----------------------------
>
>                 Key: HHH-1615
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1615
>             Project: Hibernate3
>          Issue Type: Improvement
>          Components: query-hql
>    Affects Versions: 3.2.5
>         Environment: PostgreSQL 8.1.3, Hibernate 3.1.3
>            Reporter: Xavier Bugaud
>            Assignee: Anthony Patricio
>            Priority: Critical
>         Attachments: hibernate-group-by.diff
>
>
> The query : "select cat, count(*) from Cat cat group by cat" does not work.
> ERROR: column "xxxx" must appear in the GROUP BY clause or be used in an aggregate function
> See :
>  - http://forum.hibernate.org/viewtopic.php?t=953716
>  - http://jira.nhibernate.org/browse/NH-528

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