[teiid-issues] [JBoss JIRA] Resolved: (TEIID-251) Support SQL 2003 order by with expressions

[Steven Hawkins (JIRA)]

     [ https://jira.jboss.org/jira/browse/TEIID-251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-251.
----------------------------------

    Resolution: Done


Finished the work to add support for order by expression by using the rewriter.  At a later time it would be good to add full support through the planner/processor/connector layer.

> Support SQL 2003 order by with expressions
> ------------------------------------------
>
>                 Key: TEIID-251
>                 URL: https://jira.jboss.org/jira/browse/TEIID-251
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: Query Engine
>    Affects Versions: 6.0.0
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>            Priority: Optional
>             Fix For: 7.0
>
>         Attachments: sort_expression.patch
>
>   Original Estimate: 2 days
>  Remaining Estimate: 2 days
>
> Defect Tracker #25000: SQL 2003 allows the order by clause to contain expressions instead of just simple simple symbol names.  Since we already support expressions in the group by clause (which is actually against the SQL spec), it would make since to support expressions in the order by as well.

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