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A B commented on DERBY-2998: ---------------------------- > I considered your proposed change, but turned it down as I thought it too > general. Okay, good to know the idea was at least considered :) > I did the limited changes needed to allow order by in a subquery select > Is this something we would like to support? I think the first question is whether or not that is supported by the standard. If it's not in SQL standard but is "de-facto" standard, meaning (I think) that most database vendors support it and the behavior is consistent across vendors, then I think that would be acceptable, as well. But I don't know whether or not either of those is true for ORDER BY in a subquery? In any event, I definitely think it would warrant it's own Jira. > 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, d2998-18.diff, d2998-18.stat, d2998-19.diff, > d2998-19.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-doc-2.diff, d2998-doc-2.stat, > d2998-followup-2.diff, d2998-followup-2.stat, d2998-followup-distinct.diff, > d2998-followup-distinct.stat, d2998-followup-doc3.diff, > d2998-followup-doc3.stat, d2998-followup-issue1.diff, > d2998-followup-issue1.stat, d2998-followup-issue4.diff, > d2998-followup-issue4.stat, d2998-followup-testsuite.diff, > d2998-followup-testsuite.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, > d2998-test8.diff, d2998-test9.diff, rreffuncrownumber.html > > > 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 -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.