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Posted to dev@openjpa.apache.org by "Jeremy Bauer (JIRA)" <ji...@apache.org> on 2013/07/18 16:04:48 UTC
[jira] [Assigned] (OPENJPA-1794) Result of aggregate function MAX
is 0 on empty table (instead of NULL).
[ https://issues.apache.org/jira/browse/OPENJPA-1794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jeremy Bauer reassigned OPENJPA-1794:
-------------------------------------
Assignee: Jeremy Bauer
> Result of aggregate function MAX is 0 on empty table (instead of NULL).
> -----------------------------------------------------------------------
>
> Key: OPENJPA-1794
> URL: https://issues.apache.org/jira/browse/OPENJPA-1794
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 2.0.0
> Reporter: Vera Filippova
> Assignee: Jeremy Bauer
>
> Below is a snippet of a test case... the max should be null, but is zero.
> Object count = em.createQuery("Select count(p.pk) from Entity1 p where 1=1").getSingleResult();
> Object max = em.createQuery("Select max(p.pk) from Entity1 p where 1=1").getSingleResult();
> System.out.println("count:"+count+ " max:"+max);
> > count:0 max:0
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