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From "Kim Haase (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-3550) The Reference guide says that you can create your own user-defined aggregates, but Derby does not have this capability.
Date Mon, 17 Mar 2008 21:42:24 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kim Haase updated DERBY-3550:
-----------------------------

    Attachment: rrefsqlj33923.html
                DERBY-3550.diff

Thanks for filing this, Rick. I have taken the liberty of making a couple of additional fixes
to the file in addition to removing the incorrect sentence. The changes are as follows:

1. Removed incorrect sentence stating that users can create their own aggregates.

2. Fixed table so that stray apostrophes do not appear in generated PDF and HTML Book files.

3. Corrected sentence introducing function list at end ("This section includes the following
aggregates") to say "Derby supports the following aggregates" -- so that it no longer implies
that the aggregate function descriptions are subtopics of the current topic.

Hope this is okay. 

> The Reference guide says that you can create your own user-defined aggregates, but Derby
does not have this capability.
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3550
>                 URL: https://issues.apache.org/jira/browse/DERBY-3550
>             Project: Derby
>          Issue Type: Bug
>          Components: Documentation
>            Reporter: Rick Hillegas
>            Assignee: Kim Haase
>             Fix For: 10.4.1.0
>
>         Attachments: DERBY-3550.diff, rrefsqlj33923.html
>
>
> The "Aggregates (set functions)" section of the Reference Guide says "You can also create
your own aggregates to perform other set functions such as calculating the standard deviation."
This is not true. See DERBY-672. This sentence confuses users. See the following email thread:
http://www.nabble.com/STDDEV-for-Derby-td16038184.html#a16038184

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