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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-6565) ROW_NUMBER function throws NullPointerException in UPDATE statement
Date Tue, 05 Aug 2014 17:42:14 GMT

     [ https://issues.apache.org/jira/browse/DERBY-6565?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dag H. Wanvik updated DERBY-6565:
---------------------------------

    Attachment: derby-6565-forbid.status
                derby-6565-forbid.diff

Uploading [^derby-6565-forbid.diff] which makes it illegal to use window functions in the
update source. Adds a new test for this error condition.

Running regressions

> ROW_NUMBER function throws NullPointerException in UPDATE statement
> -------------------------------------------------------------------
>
>                 Key: DERBY-6565
>                 URL: https://issues.apache.org/jira/browse/DERBY-6565
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.10.2.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Dag H. Wanvik
>            Priority: Minor
>         Attachments: derby-6565-forbid.diff, derby-6565-forbid.status, derby-6565.diff
>
>
> A NullPointerException is raised with this (possibly illegal?) UPDATE statement:
> {noformat}
> ij version 10.10
> ij> connect 'jdbc:derby:memory:db;create=true';
> ij> create table t(x int);
> 0 rows inserted/updated/deleted
> ij> insert into t values 1;
> 1 row inserted/updated/deleted
> ij> update t set x = row_number() over ();
> ERROR XJ001: Java exception: ': java.lang.NullPointerException'.
> {noformat}



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