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https://issues.apache.org/jira/browse/DERBY-4391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Knut Anders Hatlen updated DERBY-4391:
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Issue & fix info: [Patch Available, Repro attached] (was: [Repro attached])
> NullPointerException when comparing indexed column with result from a set
> operation
> -----------------------------------------------------------------------------------
>
> Key: DERBY-4391
> URL: https://issues.apache.org/jira/browse/DERBY-4391
> Project: Derby
> Issue Type: Bug
> Components: SQL
> Affects Versions: 10.2.2.0, 10.3.3.0, 10.4.2.0, 10.5.3.0, 10.6.0.0
> Reporter: Knut Anders Hatlen
> Assignee: Knut Anders Hatlen
> Attachments: d4391-1a.diff, d4391-1a.stat
>
>
> I'm reporting this issue on behalf of Bernt M. Johnsen.
> If an indexed column is compared with a UNION query (or some other set
> operation), a NullPointerException is raised, as can be seen by this sequence
> of statements in ij:
> ij> create table t(a int not null primary key, b int);
> 0 rows inserted/updated/deleted
> ij> select * from t where a < (values 4 union values 4);
> ERROR XJ001: Java exception: ': java.lang.NullPointerException'.
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