[teiid-issues] [JBoss JIRA] Resolved: (TEIID-1510) RulePushAggregates should consider cost in addition to key information

Wed Mar 16 17:24:50 EDT 2011

     [ https://issues.jboss.org/browse/TEIID-1510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-1510.
-----------------------------------

        Labels: costing  (was: )
    Resolution: Done

updated push aggregates to use costing information in making staged aggregate decisions.  Also further prevented rule plan joins from making sub-optimal cross join decisions and enhanced the costing logic to account for dependentsetcriteria

> RulePushAggregates should consider cost in addition to key information
> ----------------------------------------------------------------------
>
>                 Key: TEIID-1510
>                 URL: https://issues.jboss.org/browse/TEIID-1510
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>              Labels: costing
>             Fix For: 7.4
>
>
> RulePushAggregates currently only considers whether a key is in use in the grouping columns to not stage an aggregate.  It should additionally use a cost check to see if the staged aggregate is cost effective. 

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