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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6103) Improve documentation of ROW_NUMBER function
Date Tue, 30 Apr 2013 05:32:16 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13645282#comment-13645282
] 

Dag H. Wanvik commented on DERBY-6103:
--------------------------------------

Thanks, Kim! I agree you don't need to use all of those adjectives, so:

> If you choose to use an explicit WINDOW clause in a SelectExpression instead of an implicit
(inlined) one, you must specify a WindowName.

could perhaps become

"If you choose to use a WINDOW clause in a SelectExpression to specify a window, you must
specify a WindowName to refer to it."

Otherwise I think it looks great!
                
> Improve documentation of ROW_NUMBER function
> --------------------------------------------
>
>                 Key: DERBY-6103
>                 URL: https://issues.apache.org/jira/browse/DERBY-6103
>             Project: Derby
>          Issue Type: Improvement
>          Components: Documentation
>    Affects Versions: 10.10.1.1
>            Reporter: Dag H. Wanvik
>            Assignee: Kim Haase
>            Priority: Minor
>         Attachments: DERBY-6103-2.diff, DERBY-6103-2.stat, DERBY-6103-2.zip, DERBY-6103-3.diff,
DERBY-6103-3.zip, DERBY-6103-4.diff, DERBY-6103-4.zip, DERBY-6103.diff, DERBY-6103.stat, DERBY-6103.zip
>
>
> The current documentation doesn't mention that we allow the window definition to be explicit.
> The restriction on WHERE clause no longer applies, nor does the sentence about ORDER
BY not being allowed in subqueries. Cf. rreffuncrownumber.dita. Also, the documentation mentions
that we don't support LIMIT, but not that we now support the FETCH/OFFSET clause, which is
often a better option than ROW_NUMBER.

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