[jira] [Assigned] (DERBY-5313) Assert failure with CASE expression in GROUP BY clause

["Mike Matrigali (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-5313?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mike Matrigali reassigned DERBY-5313:
-------------------------------------

    Assignee: Mike Matrigali  (was: Knut Anders Hatlen)

> Assert failure with CASE expression in GROUP BY clause
> ------------------------------------------------------
>
>                 Key: DERBY-5313
>                 URL: https://issues.apache.org/jira/browse/DERBY-5313
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.4.2.1, 10.5.3.0, 10.6.1.0, 10.6.2.1, 10.7.1.1, 10.8.1.2
>            Reporter: Knut Anders Hatlen
>            Assignee: Mike Matrigali
>              Labels: derby_triage10_11, derby_triage10_9
>             Fix For: 10.11.1.1
>
>         Attachments: d5313-1a.diff
>
>
> I see the following assert failure with debug jars on 10.5.3.0 and later (doesn't fail on 10.5.1.1 and earlier):
> ij> create table t(x int);
> 0 rows inserted/updated/deleted
> ij> insert into t values 1;
> 1 row inserted/updated/deleted
> ij> select case when a=1 then 1 else 2 end
>   from t t1(a) join t t2(b) on a=b
>   group by case when a=1 then 1 else 2 end;
> ERROR XJ001: Java exception: 'ASSERT FAILED retVN expected to be instanceof ColumnReference, not org.apache.derby.impl.sql.compile.ConditionalNode: org.apache.derby.shared.common.sanity.AssertFailure'.



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