[teiid-issues] [JBoss JIRA] (TEIID-4084) Improve with clause performance via inlining

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-4084?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-4084.
-----------------------------------
    Resolution: Done


Implemented in the rewriter as an early optimization with a better replacement strategy that what was used to inline just scalar with clauses.  Also added the no_inline hint to prevent inlining if desired.

> Improve with clause performance via inlining
> --------------------------------------------
>
>                 Key: TEIID-4084
>                 URL: https://issues.jboss.org/browse/TEIID-4084
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: Grammar, Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 9.0
>
>
> We should inline a with clause item that is only referenced a single time with a hint to prevent this behavior.  Scalar with clauses could still be inlined multiple times. 



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