[teiid-issues] [JBoss JIRA] (TEIID-2942) Enhanced sort join produces duplicate results

[Steven Hawkins (JIRA)]

Steven Hawkins created TEIID-2942:
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             Summary: Enhanced sort join produces duplicate results
                 Key: TEIID-2942
                 URL: https://issues.jboss.org/browse/TEIID-2942
             Project: Teiid
          Issue Type: Bug
          Components: Query Engine
    Affects Versions: 8.4
            Reporter: Steven Hawkins
            Assignee: Steven Hawkins
            Priority: Critical
             Fix For: 8.7.1, 8.8


In a plan where an enhanced sort join chooses to create an index on a child that should be SORT_DISTINCT, the distinct processing does not occur.

For example this would occur with a query such as:

select a.e1, b.e2 from pm1.g1 as a, (select e1, e2 from pm2.g2 union select e1, e2 from pm2.g2) as b where a.e1 = b.e1

where the source does not support union.

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