[jira] [Updated] (JDO-643) The type of AVG should always be double (not the type of the field)

["Craig L Russell (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JDO-643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Craig L Russell updated JDO-643:
--------------------------------
    Summary: The type of AVG should always be double (not the type of the field)  (was: avg return type)

> The type of AVG should always be double (not the type of the field)
> -------------------------------------------------------------------
>
>                 Key: JDO-643
>                 URL: https://issues.apache.org/jira/browse/JDO-643
>             Project: JDO
>          Issue Type: Bug
>          Components: specification, tck
>    Affects Versions: JDO 2 maintenance release 2 (2.2)
>            Reporter: Guido Anzuoni
>            Assignee: Michael Bouschen
>             Fix For: JDO 3.1-rc1
>
>         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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