[jira] Commented: (DERBY-2998) Add support for ROW_NUMBER() window function

["Dyre Tjeldvoll (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DERBY-2998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548334 ] 

Dyre Tjeldvoll commented on DERBY-2998:
---------------------------------------

I committed the minimal junit test for row_number(). I expect that this is "work in progress" as the test was not added to a suite (reasonable since the functionality being tested isn't available yet :).

One comment: I see the JUnit gurus advocating the use of the harness utility function createStatement() because Statement objects then will be closed automatically. You may want to consider this for the final version.

> 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: d2998-4.diff, d2998-4.stat, d2998-5.diff, d2998-5.stat, d2998-test.diff, d2998-test.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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