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https://issues.apache.org/jira/browse/DERBY-2998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12529848
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Thomas Nielsen commented on DERBY-2998:
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Marking the row_number() result columns using
ResultColumn.markAsGroupingColumn() while in ResultColumnList.generateCore() is
not enough to stop the execution of the inner row_number() with a WHILE clause
at least... Investigation still ongoing. Any other hints or tips appreaciated.
> 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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