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https://issues.apache.org/jira/browse/JDO-580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13061556#comment-13061556
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Michael Bouschen commented on JDO-580:
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Spec update proposal:
I propose to add the following to the list of result expression on page 176 of
the JDO 3.0 spec.. It should be added between <field expression> and
<parameter>.
* <method expression>: the value of an expression calling any of the methods
allowed in queries applied to fields is returned
> Add TCK query test using methods in the query result
> ----------------------------------------------------
>
> Key: JDO-580
> URL: https://issues.apache.org/jira/browse/JDO-580
> Project: JDO
> Issue Type: Test
> Components: specification, tck, tck2-legacy
> Affects Versions: JDO 2 maintenance release 1
> Reporter: Michael Bouschen
> Assignee: Craig L Russell
> Fix For: JDO 3 maintenance release 1
>
> Attachments: JDO-580.conf, JDO-580.patch, derby-app-JDO-580-junit.txt
>
>
> There are currently no TCK tests for using size() and max() or other
> aggregates in queries. For example, find the Node or Nodes with the maximum
> number of children: SELECT FROM Node WHERE this.children.size() == (SELECT
> MAX(n.children.size()) FROM Node n).
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