[teiid-issues] [JBoss JIRA] Created: (TEIID-545) add join expression distinct detection

Sun May 3 23:08:46 EDT 2009

add join expression distinct detection
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                 Key: TEIID-545
                 URL: https://jira.jboss.org/jira/browse/TEIID-545
             Project: Teiid
          Issue Type: Feature Request
          Components: Query Engine
    Affects Versions: 6.0.0
            Reporter: Steven Hawkins
            Assignee: Steven Hawkins
             Fix For: 6.1.0

for better join performance it would be good to know when the join expressions are unique.  For pushdowns this can be obtained from the metadata otherwise the sortutility can be modified to detect uniqueness.

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