[teiid-issues] [JBoss JIRA] (TEIID-2482) Allow the use of the enhanced join for left outer joins

Wed May 8 14:38:53 EDT 2013

    [ https://issues.jboss.org/browse/TEIID-2482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12773045#comment-12773045 ] 

Steven Hawkins commented on TEIID-2482:
---------------------------------------

The second commits gives the planner more flexibility to not push down sorts that it believes will not be necessary.  The only drawback to this optimization is that there is no hint to override the behavior should a pushdown sort be needed.  This commit is currently not needed for backporting.

> Allow the use of the enhanced join for left outer joins
> -------------------------------------------------------
>
>                 Key: TEIID-2482
>                 URL: https://issues.jboss.org/browse/TEIID-2482
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 8.4
>
>
> Left equi outer joins are currently only implemented using the full sort merge join and would benefit from using the enhanced merge when the inner side is relatively small.

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