[teiid-issues] [JBoss JIRA] (TEIID-4449) Allow limited replanning of subplans that use only common tables

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-4449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-4449.
-----------------------------------
    Resolution: Done


Updated the planner to consolidate how the with clause is assigned to source queries and to check for repeated usage of the same common table, which triggers a replanning with the common table effectively marked as materialized.

> Allow limited replanning of subplans that use only common tables 
> -----------------------------------------------------------------
>
>                 Key: TEIID-4449
>                 URL: https://issues.jboss.org/browse/TEIID-4449
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 9.1
>
>
> If a common table is fully pushed and not marked as materialized, then it could be used in subplans in a trivial way:
> with x as ... select col from x
> It would be better to have that access reference a materialized common table, rather than pushed separately.



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