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Date: Wed, 5 Sep 2007 07:43:38 -0700 (PDT)
From: "Knut Anders Hatlen (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=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12525117 ] 

Knut Anders Hatlen commented on DERBY-2998:
-------------------------------------------

Hi Thomas,

It would probably be easier for people to tell what's wrong and give advice if you posted a patch which shows what you have tried so far. I would guess the VerifyError is thrown because you're passing the wrong argument type. I think the error message would look different if you were missing a class.

By the way, don't aggregators normally return one value for all rows within a group? Does that match what you're trying to achieve with row numbers?

> 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
>
> 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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