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Posted to jdo-dev@db.apache.org by "Andy Jefferson (JIRA)" <ji...@apache.org> on 2010/12/13 15:06:00 UTC
[jira] Updated: (JDO-643) avg return type
[ https://issues.apache.org/jira/browse/JDO-643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andy Jefferson updated JDO-643:
-------------------------------
Attachment: JDO-643.patch
Attached is a patch for the two tests affected by this proposed change.
> avg return type
> ---------------
>
> Key: JDO-643
> URL: https://issues.apache.org/jira/browse/JDO-643
> Project: JDO
> Issue Type: Bug
> Components: specification
> Affects Versions: JDO 2 maintenance release 2
> Reporter: Guido Anzuoni
> Assignee: Michael Bouschen
> Fix For: JDO 3 maintenance release 1
>
> Attachments: JDO-643.patch
>
>
> Aggregate type specification at page 175 claims that avg(expression) return type is the same of the enclosed expression.
> This is wrong from a strictly mathematical point of view.
> In fact, if you select an avg on an int field member the result is truncated.
> The result type should always be double.
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