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https://issues.apache.org/jira/browse/DERBY-4342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12740260#action_12740260
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Dag H. Wanvik commented on DERBY-4342:
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I was able to reproduce this on trunk. The interesting part of the stack trace
is:
:
Caused by: java.lang.NullPointerException
at
org.apache.derby.impl.sql.execute.BaseActivation.getColumnFromRow(BaseActivation.java:1451)
at
org.apache.derby.exe.acf81e0010x0122xf19ex21cdx0000001421800.g0(Unknown Source)
at
org.apache.derby.exe.acf81e0010x0122xf19ex21cdx0000001421800.e1(Unknown Source)
at
org.apache.derby.impl.services.reflect.DirectCall.invoke(ReflectGeneratedClass.java:141)
at
org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.getNextRowCore(ProjectRestrictResultSet.java:268)
at
org.apache.derby.impl.sql.execute.JoinResultSet.openCore(JoinResultSet.java:148)
at
org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl.open(BasicNoPutResultSetImpl.java:248)
at
org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(GenericPreparedStatement.java:416)
at
org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:297)
at
org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1235)
... 10 more
> 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, 10.5.1.1
> Environment: WINXP
> Reporter: Hubert Garm
>
> 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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