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https://issues.apache.org/jira/browse/DERBY-4425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Matrigali resolved DERBY-4425.
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Fix Version/s: 10.5.3.1
Resolution: Fixed
backported all changes for this fix from trunk to 10.5 branch, resolving as
fixed in 10.5, and resetting orignal owner.
> 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, 10.6.1.0
> Reporter: Knut Anders Hatlen
> Assignee: Mike Matrigali
> Fix For: 10.5.3.1, 10.6.1.0
>
> 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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