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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2998) Add support for ROW_NUMBER() window function
Date Wed, 12 Sep 2007 18:31:32 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12526878
] 

Bryan Pendleton commented on DERBY-2998:
----------------------------------------

Hi Thomas, regarding the syntax for the nested select, do these formulations work?

  select * from (select row_number() as r, t.* from t) as t_with_rownum where r < 10

  select * from (select row_number() as r, a, b from t) as t_with_rownum where r < 10

That is, if we specify the "as <aliasname>" clause for the nested select, is the where
clause recognized properly?


> 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: row_number_prototype.diff, row_number_prototype.stat
>
>
> As part of implementing the overall OLAP Operations features of SQL (DERBY-581), implement
the ROW_NUMBER() window function.
> More information about this feature is available at http://wiki.apache.org/db-derby/OLAPRowNumber

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