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https://issues.apache.org/jira/browse/DERBY-6103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13635006#comment-13635006
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Dag H. Wanvik commented on DERBY-6103:
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Oops, that's what happens when I try to simplify the original SQL grammar too
quickly..
It should be;
WINDOW window_name AS window_specification
so in the example "WINDOW R AS ()" would constitute a wIndow_clause. The
window_specification will be the "()", its only legal value for now.
> 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.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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