[teiid-issues] [JBoss JIRA] (TEIID-4005) Allow dependent join row value to be split

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-4005?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins updated TEIID-4005:
----------------------------------
    Description: 
For some queries having a dependent join row value that spans multiple target tables should be split among those targets.

For example rather than:

(g_0.e1, g_1.e2) IN (<dependent values>))

Use the pre 8.7 form:

(g_0.e1 IN (<dependent values>)) AND (g_1.e2 IN (<dependent values>))

  was:Potentially an oracle query optimization issue.  Row value predicate for particular tables are more performant when splitting into two in predicates.

        Summary: Allow dependent join row value to be split  (was: optimization to split row value predicate into two predicates)


> Allow dependent join row value to be split
> ------------------------------------------
>
>                 Key: TEIID-4005
>                 URL: https://issues.jboss.org/browse/TEIID-4005
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Query Engine
>    Affects Versions: 8.7.4.6_2
>            Reporter: Johnathon Lee
>            Assignee: Steven Hawkins
>             Fix For: 9.0, 8.12.5
>
>
> For some queries having a dependent join row value that spans multiple target tables should be split among those targets.
> For example rather than:
> (g_0.e1, g_1.e2) IN (<dependent values>))
> Use the pre 8.7 form:
> (g_0.e1 IN (<dependent values>)) AND (g_1.e2 IN (<dependent values>))



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