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https://issues.apache.org/jira/browse/DERBY-4342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12759913#action_12759913
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Knut Anders Hatlen commented on DERBY-4342:
-------------------------------------------
For the record, there have also been problems with missing overrides in
CoalesceFunctionNode before:
- DERBY-883 added missing accept() method
- DERBY-1574 added missing preprocess() and printSubNodes() methods
> SQLSTATE 38000 (NullPointerException) at inner self join and value(x1, x2...)
> -----------------------------------------------------------------------------
>
> Key: DERBY-4342
> URL: https://issues.apache.org/jira/browse/DERBY-4342
> Project: Derby
> Issue Type: Bug
> Affects Versions: 10.1.1.0, 10.1.2.1, 10.1.3.1, 10.2.1.6, 10.2.2.0,
> 10.3.1.4, 10.3.2.1, 10.3.3.0, 10.4.1.3, 10.4.2.0, 10.5.1.1
> Environment: WINXP
> Reporter: Hubert Garm
> Assignee: Knut Anders Hatlen
> Fix For: 10.6.0.0
>
> Attachments: derby-4342-1a.diff
>
>
> create table xyz (c1 int, c2 int);
> insert into xyz values(1,2);
> select * from xyz t1 inner join xyz t2 on t1.c1 = t2.c1 where value(t1.c1,
> t1.c2) = 1;
> causes the following error:
> FEHLER 38000: Bei der Auswertung eines Ausdrucks wurde die Ausnahme
> 'java.lang.NullPointerException' ausgeloest.
> FEHLER XJ001: Java-Ausnahme: ': java.lang.NullPointerException'.
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