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https://issues.apache.org/jira/browse/DERBY-2170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14127549#comment-14127549
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Kim Haase commented on DERBY-2170:
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This work still needs to be done. There's no indication in the GROUP BY clause
topic, either in the description or the examples, that functions are valid.
> Document the ability to use functions in GROUP BY expressions
> -------------------------------------------------------------
>
> Key: DERBY-2170
> URL: https://issues.apache.org/jira/browse/DERBY-2170
> Project: Derby
> Issue Type: Improvement
> Components: Documentation
> Affects Versions: 10.2.1.6, 10.3.1.4
> Reporter: Andrew McIntyre
> Priority: Minor
>
> The ability to use functions in GROUP BY expressions was added as a part of
> DERBY-883. The documentation needs to be updated to reflect this. See also
> this thread regarding the determinism of functions in regard to this feature:
> http://www.nabble.com/Functions-in-GROUP-BY-expressions--%28related-to-DERBY-883%29-tf2517296.html
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