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Date: Fri, 7 Mar 2008 00:05:46 -0800 (PST)
From: "Thomas Nielsen (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Commented: (DERBY-2998) Add support for ROW_NUMBER() window
 function
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    [ https://issues.apache.org/jira/browse/DERBY-2998?page=3Dcom.atlassian=
.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D1257=
6070#action_12576070 ]=20

Thomas Nielsen commented on DERBY-2998:
---------------------------------------

Looks like the doc-3 patch still hasn't been comitted. I'll resolve once th=
at has gone in :)

> Add support for ROW_NUMBER() window function
> --------------------------------------------
>
>                 Key: DERBY-2998
>                 URL: https://issues.apache.org/jira/browse/DERBY-2998
>             Project: Derby
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Thomas Nielsen
>            Assignee: Thomas Nielsen
>            Priority: Minor
>         Attachments: d2998-10.diff, d2998-10.stat, d2998-11.diff, d2998-1=
2.diff, d2998-12.stat, d2998-13.diff, d2998-13.stat, d2998-14.diff, d2998-1=
4.stat, d2998-15.diff, d2998-15.stat, d2998-16.diff, d2998-16.stat, d2998-1=
7.diff, d2998-17.stat, d2998-18.diff, d2998-18.stat, d2998-19.diff, d2998-1=
9.stat, d2998-4.diff, d2998-4.stat, d2998-5.diff, d2998-5.stat, d2998-6.dif=
f, d2998-6.stat, d2998-7.diff, d2998-7.stat, d2998-8.diff, d2998-8.stat, d2=
998-9-derby.log, d2998-9.diff, d2998-9.stat, d2998-doc-1.diff, d2998-doc-1.=
stat, d2998-doc-2.diff, d2998-doc-2.stat, d2998-followup-2.diff, d2998-foll=
owup-2.stat, d2998-followup-distinct.diff, d2998-followup-distinct.diff, d2=
998-followup-distinct.stat, d2998-followup-doc3.diff, d2998-followup-doc3.s=
tat, d2998-followup-issue1.diff, d2998-followup-issue1.stat, d2998-followup=
-issue4.diff, d2998-followup-issue4.stat, d2998-followup-removeunused.diff,=
 d2998-followup-testsuite.diff, d2998-followup-testsuite.stat, d2998-test.d=
iff, d2998-test.stat, d2998-test2.diff, d2998-test2.stat, d2998-test3.diff,=
 d2998-test3.stat, d2998-test4.diff, d2998-test4.stat, d2998-test6.diff, d2=
998-test7.diff, d2998-test8.diff, d2998-test9.diff, rreffuncrownumber.html
>
>
> As part of implementing the overall OLAP Operations features of SQL (DERB=
Y-581), implement the ROW_NUMBER() window function.
> More information about this feature is available at http://wiki.apache.or=
g/db-derby/OLAPRowNumber
> DERBY-2998 implements=20
>   - framework code for windows and window function result columns.
>   - the ROW_NUMBER() window function according to SQL2003
> but the implementation is limited by
>   - only supporting an empty, unnamed, inline window definition (i.e the =
full, unordered resultset)
>   - not being fully optimized

--=20
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