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https://issues.apache.org/jira/browse/DERBY-6027?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dag H. Wanvik resolved DERBY-6027.
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Resolution: Fixed
Fix Version/s: 10.10.0.0
Issue & fix info: (was: Patch Available)
Could be back-ported if deemed valuable enough, but closing for now.
> ORDER BY a cast expression gives NPE
> ------------------------------------
>
> Key: DERBY-6027
> URL: https://issues.apache.org/jira/browse/DERBY-6027
> Project: Derby
> Issue Type: Bug
> Components: SQL
> Affects Versions: 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, 10.5.2.0, 10.5.3.0, 10.6.1.0, 10.6.2.1,
> 10.7.1.1, 10.8.1.2, 10.8.2.2, 10.9.1.0
> Reporter: Dag H. Wanvik
> Assignee: Dag H. Wanvik
> Priority: Minor
> Fix For: 10.10.0.0
>
> Attachments: derby-6027b.diff, derby-6027b.stat, derby-6027.diff,
> derby-6027.stat
>
>
> The following gives a NPE:
> ij> values 1,2 order by int(1);
> or
> ij> select * from sysibm.sysdummy1 order by int(1);
> The NPE happens when pulling up the order by expression seemingly due to a
> compiler phase problem:
> Caused by: java.lang.NullPointerException
> at
> org.apache.derby.impl.sql.compile.CastNode.getConstantValueAsObject(CastNode.java:851)
> at
> org.apache.derby.impl.sql.compile.OrderByColumn.isReferedColByNum(OrderByColumn.java:466)
> at
> org.apache.derby.impl.sql.compile.OrderByColumn.pullUpOrderByColumn(OrderByColumn.java:403)
> at
> org.apache.derby.impl.sql.compile.OrderByList.pullUpOrderByColumns(OrderByList.java:195)
> at
> org.apache.derby.impl.sql.compile.CursorNode.bindStatement(CursorNode.java:254)
> The variable sourceCTI is (still) null; being set by CastNode#
> bindCastNodeOnly, which presumably hasn't yet been run.
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