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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (DERBY-4425) NullPointerException with INSERT INTO ... from UNION and columns generated from expressions
Date Fri, 30 Oct 2009 15:09:59 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bryan Pendleton resolved DERBY-4425.
------------------------------------

       Resolution: Fixed
    Fix Version/s: 10.6.0.0

Committed the regression test change to the trunk as revision 831319.

The code change was committed as part of revision 831304, for DERBY-4419.


> NullPointerException with INSERT INTO ... from UNION and columns generated from expressions
> -------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4425
>                 URL: https://issues.apache.org/jira/browse/DERBY-4425
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.5.1.1, 10.5.3.0, 10.6.0.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Bryan Pendleton
>             Fix For: 10.6.0.0
>
>         Attachments: checkIsGenerated.diff
>
>
> This bug is similar to DERBY-4419, only that it uses columns that are auto-generated
from expressions and not identity columns. The proposed fix for DERBY-4419 only addresses
the case with an identity column.
> ij> create table t1(x int);
> 0 rows inserted/updated/deleted
> ij> create table t2(x int);
> 0 rows inserted/updated/deleted
> ij> create table t3(x int, y generated always as (2*x));
> 0 rows inserted/updated/deleted
> ij> insert into t3(x) select * from t1 union select * from t2;
> ERROR XJ001: Java exception: ': java.lang.NullPointerException'.

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