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