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From "Thomas Nielsen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-2998) Add support for ROW_NUMBER() window function
Date Thu, 20 Sep 2007 14:02:31 GMT

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

Thomas Nielsen updated DERBY-2998:
----------------------------------

    Attachment: row_number_prototype-2b.stat
                row_number_prototype-2b.diff

Updated the patch to distinguish differnet row_number() instances based on which ResultSet
they are in.

ij> select row_number(), r, b from (select row_number() as r, t.* from t) as tr where r
>= 2;
row_number()        |R                   |B          
-----------------------------------------------------
1                   |2                   |8          
2                   |3                   |7          

2 rows selected

Patch still not intended for commit.

> 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-2b.diff, row_number_prototype-2b.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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