[teiid-issues] [JBoss JIRA] (TEIID-4084) Improve with clause performance via inlining
Steven Hawkins (JIRA)
issues at jboss.org
Tue Mar 22 10:13:00 EDT 2016
[ https://issues.jboss.org/browse/TEIID-4084?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steven Hawkins updated TEIID-4084:
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Component/s: Grammar
Description: 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. (was: There are couple of things we can do here. The first would just be to inline a with clause item that is only referenced a single time (we may need to allow a hint to prevent this behavior). The other would be to generally allow more iterative processing - currently all results need to built into the common table before it can be accessed, but that should be able to be relaxed and done on demand.)
Summary: Improve with clause performance via inlining (was: Improve with clause performance)
Splitting into two jiras.
> 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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