[teiid-issues] [JBoss JIRA] (TEIID-2139) Factor out common table expressions

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-2139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12745740#comment-12745740 ] 

Steven Hawkins commented on TEIID-2139:
---------------------------------------

I've made progress on 1/3, but implementing within a single relational plan does seem too limiting.  Performing automatically analysis beyond just a single table does pose additional hurdles (join order / structure, etc.), so the initial focus may be on just single tables/views.
                
> Factor out common table expressions
> -----------------------------------
>
>                 Key: TEIID-2139
>                 URL: https://issues.jboss.org/browse/TEIID-2139
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Query Engine
>            Reporter: Mark Addleman
>            Assignee: Steven Hawkins
>             Fix For: 8.3
>
>
> Query planner should factor out common table expressions within queries so they are only executed once.  See https://community.jboss.org/message/742355 for more context.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira