[teiid-issues] [JBoss JIRA] Created: (TEIID-921) Queries containing a UNION with an ORDER BY are producing unexpected results in CTC Query Testing

Tue Jan 5 15:15:30 EST 2010

Queries containing a UNION with an ORDER BY are producing unexpected results in CTC Query Testing 
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                 Key: TEIID-921
                 URL: https://jira.jboss.org/jira/browse/TEIID-921
             Project: Teiid
          Issue Type: Bug
          Components: Integration Tests
    Affects Versions: 7.0
            Reporter: Warren Gibson
            Assignee: Steven Hawkins

I am getting unexpected results (all sources) on 17 queries containing a UNION and ORDER BY.  The ORDER BY isn't working when there is a UNION involved.  These queries were producing expected results prior to the holidays.  Below is a sample query:

RDBMS_Test_Queries_6500_TestQuery32" value="SELECT StringKey FROM BQT1.SmallA WHERE IntKey >= 0 AND IntKey < 15 UNION SELECT StringKey FROM BQT1.SmallB WHERE IntKey >= 10 AND IntKey < 30 ORDER BY StringKey DESC

The interesting thing is the queries do work with a UNION ALL.  

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