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Date: Thu, 3 Jan 2013 04:08:13 +0000 (UTC)
From: "Dag H. Wanvik (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Message-ID: <JIRA.12622888.1354875323102.72901.1357186093790@arcas>
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Subject: [jira] [Resolved] (DERBY-6009) Need stricter checking of ORDER BY
 clause in VALUES expressions
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     [ https://issues.apache.org/jira/browse/DERBY-6009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dag H. Wanvik resolved DERBY-6009.
----------------------------------

          Resolution: Fixed
       Fix Version/s: 10.10.0.0
    Issue & fix info: Repro attached  (was: Patch Available,Repro attached)
    
> Need stricter checking of ORDER BY clause in VALUES expressions
> ---------------------------------------------------------------
>
>                 Key: DERBY-6009
>                 URL: https://issues.apache.org/jira/browse/DERBY-6009
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.9.1.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Dag H. Wanvik
>            Priority: Minor
>             Fix For: 10.10.0.0
>
>         Attachments: derby-6009b.diff, derby-6009b.stat, derby-6009c.diff, derby-6009c.stat, derby-6009.diff, derby-6009.stat
>
>
> We only support column numbers in ORDER BY clauses in VALUES expression, as seen by this error message:
> ij> values 1,2 order by 1+2;
> ERROR 42878: The ORDER BY clause of a SELECT UNION statement only supports unqualified column references and column position numbers. Other expressions are not currently supported. (errorCode = 30000)
> However, the checks let some unsupported expressions through and produce strange results. For example:
> ij> values 1 order by 1+2;
> 1          |2          
> -----------------------
> 1          |3          
> 1 row selected
> It should probably have raised the same exception as the first query. And if not, the result should only have had one column.
> And the next example should probably have raised a syntax error too, instead of a NullPointerException:
> ij> values 1 order by int(1);
> ERROR XJ001: Java exception: ': java.lang.NullPointerException'. (errorCode = 0)

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