[teiid-issues] [JBoss JIRA] (TEIID-5346) Improve costing of literals even with unknown values

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-5346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13580572#comment-13580572 ] 

Steven Hawkins commented on TEIID-5346:
---------------------------------------

I have the changes ready for this.  The only downside is that we are more aggressive in creating dependent joins - which in testing scenarios don't appear to be necessary much like the one created by TEIID-5345.  I'll spend a little more time on this to see if we can do more to prevent the unnecessary dependent joins.

> Improve costing of literals even with unknown values
> ----------------------------------------------------
>
>                 Key: TEIID-5346
>                 URL: https://issues.jboss.org/browse/TEIID-5346
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 11.0
>
>
> In the nodes above a projected literal if there are unknown cardinalities will become ndv unknown - rather than the expected ndv/nnv.



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