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https://issues.apache.org/jira/browse/DERBY-2998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12572531#action_12572531
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thomanie edited comment on DERBY-2998 at 2/26/08 8:08 AM:
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The culprit turned out to be ResultColumnList.allExpressionsAreColumns().
After adding an explict check for any window functions here, we avoid massing
up the correlation flag and every thing seems to be working as expected. All
20-ish queries in the test7 patch returns the expected rows.
I should probably add that I want to clean up a couple of issues with patch 17
before I check 'patch available', but I wanted to post the working code so you
can play with it, and maybe give some additional feedback.
was (Author: thomanie):
The culprit turned out to be ResultColumnList.allExpressionsAreColumns().
After adding an explict check for any window functions here, we avoid massing
up the correlation flag and every thing seems to be working as expected.
> 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: d2998-10.diff, d2998-10.stat, d2998-11.diff,
> d2998-12.diff, d2998-12.stat, d2998-13.diff, d2998-13.stat, d2998-14.diff,
> d2998-14.stat, d2998-15.diff, d2998-15.stat, d2998-16.diff, d2998-16.stat,
> d2998-17.diff, d2998-17.stat, d2998-4.diff, d2998-4.stat, d2998-5.diff,
> d2998-5.stat, d2998-6.diff, d2998-6.stat, d2998-7.diff, d2998-7.stat,
> d2998-8.diff, d2998-8.stat, d2998-9-derby.log, d2998-9.diff, d2998-9.stat,
> d2998-doc-1.diff, d2998-doc-1.stat, d2998-test.diff, d2998-test.stat,
> d2998-test2.diff, d2998-test2.stat, d2998-test3.diff, d2998-test3.stat,
> d2998-test4.diff, d2998-test4.stat, d2998-test6.diff, d2998-test7.diff
>
>
> 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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