[teiid-issues] [JBoss JIRA] (TEIID-160) Remove redundant self-joins

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins updated TEIID-160:
---------------------------------

        Fix Version/s:     (was: 8.1)
    Affects Version/s:     (was: 9.x)


Pulling out of the release bucket as we haven't had this driven from usage and also has potential workarounds (of at least pulling only a single copy of the data) in TEIID-2077, or TEIID-1598.
                
> Remove redundant self-joins
> ---------------------------
>
>                 Key: TEIID-160
>                 URL: https://issues.jboss.org/browse/TEIID-160
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: Query Engine
>            Reporter: Steven Hawkins
>            Priority: Minor
>   Original Estimate: 2 days
>  Remaining Estimate: 2 days
>
> Query minimization should be used to remove self-joins on unique columns.  This could be added as part of RuleRemoveOptionalJoins (but the rule may need to be run again after join planning).

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