[teiid-issues] [JBoss JIRA] (TEIID-3237) Prevent processing cross joins with unknown cardinalities

[Johnathon Lee (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-3237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Johnathon Lee closed TEIID-3237.
--------------------------------
    Resolution: Done


> Prevent processing cross joins with unknown cardinalities
> ---------------------------------------------------------
>
>                 Key: TEIID-3237
>                 URL: https://issues.jboss.org/browse/TEIID-3237
>             Project: Teiid
>          Issue Type: Quality Risk
>          Components: Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 8.7.10_6.2, 8.10
>
>
> The optimizer will select plans with cross joins (particularly with a parent dependent join) when the join is to be processed in Teiid and the cardinality of both sides of the join are unknown.
> We should prefer non cross join plans in these scenarios.



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