[teiid-issues] [JBoss JIRA] (TEIID-3208) Remove outer join based solely on join predicates

Steven Hawkins (JIRA) issues at jboss.org
Tue Nov 11 09:35:13 EST 2014


Steven Hawkins created TEIID-3208:
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             Summary: Remove outer join based solely on join predicates
                 Key: TEIID-3208
                 URL: https://issues.jboss.org/browse/TEIID-3208
             Project: Teiid
          Issue Type: Enhancement
          Components: Query Engine
            Reporter: Steven Hawkins
            Assignee: Steven Hawkins
             Fix For: 8.10


We currently remove outer joins based upon where clause predicates, but won't necessarily detect when to remove the the outer join based solely on join predicates:

SELECT * from pm1.g1 inner join (pm1.g2 left outer join pm1.g3 on pm1.g2.e1=pm1.g3.e1) on pm1.g1.e1=pm1.g3.e1



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