[teiid-issues] [JBoss JIRA] Resolved: (TEIID-747) Minor costing updates

[Steven Hawkins (JIRA)]

     [ https://jira.jboss.org/jira/browse/TEIID-747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-747.
----------------------------------

    Resolution: Done


Made the changes, see TestCalculateCostUtil

> Minor costing updates
> ---------------------
>
>                 Key: TEIID-747
>                 URL: https://jira.jboss.org/jira/browse/TEIID-747
>             Project: Teiid
>          Issue Type: Quality Risk
>          Components: Query Engine
>    Affects Versions: 6.0.0
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>            Priority: Minor
>             Fix For: 6.2.0
>
>
> Virtual cost stats for ndv and nnv should be used if available
> nnv and ndv should be able to be calculated against projected expressions
> External use of useskey should check for intervening joins/unions
> The like cost check for just % should be moved to the rewriter
> Except/Intersect costing should be based upon average case
> This will be about as far as the current logic can be used, see TEIID-239 for using better estimates of ndv and nnv

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira