[teiid-issues] [JBoss JIRA] (TEIID-3236) Copy criteria within a left outer join removes predicates
Steven Hawkins (JIRA)
issues at jboss.org
Mon Jun 22 11:28:13 EDT 2015
[ https://issues.jboss.org/browse/TEIID-3236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steven Hawkins closed TEIID-3236.
---------------------------------
> 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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