[teiid-issues] [JBoss JIRA] (TEIID-2931) Perform equi-join full outer joins in a streaming manner

RH Bugzilla Integration (JIRA) issues at jboss.org
Mon Apr 21 13:52:33 EDT 2014


     [ https://issues.jboss.org/browse/TEIID-2931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

RH Bugzilla Integration updated TEIID-2931:
-------------------------------------------

        Bugzilla Update: Perform
    Bugzilla References: https://bugzilla.redhat.com/show_bug.cgi?id=1089704

    
> Perform equi-join full outer joins in a streaming manner
> --------------------------------------------------------
>
>                 Key: TEIID-2931
>                 URL: https://issues.jboss.org/browse/TEIID-2931
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 8.7.1, 8.8
>
>
> A pass to compute the right outer matches is only needed when there is non-equi join criteria, since we'll already have determined the right outer values that fail to match the equi-join predicates on the first pass.  Note that second passes are limited only to the match regions, but we don't have effective buffering logic for that so we just fully buffer each side.

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