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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4420) NullPointerException with INSERT INTO ... from EXCEPT/INTERSECT and generated columns
Date Fri, 23 Oct 2009 06:59:59 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Knut Anders Hatlen updated DERBY-4420:
--------------------------------------

    Attachment: npe.sql

Attached is a script that reproduces the NPE.

> NullPointerException with INSERT INTO ... from EXCEPT/INTERSECT and generated columns
> -------------------------------------------------------------------------------------
>
>                 Key: DERBY-4420
>                 URL: https://issues.apache.org/jira/browse/DERBY-4420
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.1.1.0, 10.2.1.6, 10.3.1.4, 10.4.1.3, 10.5.1.1, 10.5.3.0, 10.6.0.0
>            Reporter: Knut Anders Hatlen
>         Attachments: npe.sql
>
>
> The sequence of statements below give a NullPointerException. The statements are very
similar to the ones in DERBY-4419, but this is a separate bug since the stack traces are different,
and this bug can be seen all the way back to 10.1.1.0, whereas DERBY-4419 was a regression
in 10.3. (On 10.0.2.1, a syntax error is raised instead of the NPE.)
> ij> create table t1(x int);
> 0 rows inserted/updated/deleted
> ij> insert into t1 values 1,2;
> 2 rows inserted/updated/deleted
> ij> create table t2(x int);
> 0 rows inserted/updated/deleted
> ij> insert into t2 values 2,3;
> 2 rows inserted/updated/deleted
> ij> create table t3(x int, y int generated always as identity);
> 0 rows inserted/updated/deleted
> ij> insert into t3(x) select * from t1 except select * from t2;
> ERROR XJ001: Java exception: ': java.lang.NullPointerException'.
> Same error if INTERSECT is used instead of EXCEPT.

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