[teiid-issues] [JBoss JIRA] (TEIID-3236) Copy criteria within a left outer join removes predicates

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-3236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-3236.
-----------------------------------
    Resolution: Done


Changed the logic to retain the non-join criteria, which will preserve them in left outer joins.

> Copy criteria within a left outer join removes predicates
> ---------------------------------------------------------
>
>                 Key: TEIID-3236
>                 URL: https://issues.jboss.org/browse/TEIID-3236
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: 8.4
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 8.10
>
>
> With a query such as:
> select bqt1.smalla.intkey from bqt1.smalla inner join (select bqt3.smalla.intkey from bqt2.smalla left outer join bqt3.smalla on bqt2.smalla.intkey = bqt3.smalla.intkey and bqt3.smalla.intkey = 1) foo on bqt1.smalla.intkey = foo.intkey
> where the left outer join is not pushed to the source, we will process it as if  bqt2.smalla.intkey = bqt3.smalla.intkey doesn't exist.
> This is somewhat unlikely to occur for user queries as the join predicates are not likely to occur and could easily be simplified.



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