[teiid-issues] [JBoss JIRA] Commented: (TEIID-168) Remove resultset caching

Steven Hawkins (JIRA) jira-events at lists.jboss.org
Mon Feb 23 17:47:44 EST 2009


    [ https://jira.jboss.org/jira/browse/TEIID-168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12453867#action_12453867 ] 

Steven Hawkins commented on TEIID-168:
--------------------------------------

That's a mischaracterization of what is happening.  It's just an intermediate state that the memory backed used for connector result sets was moved to jboss cache.  JBoss cache without additional work is not appropriate for large data volumes requiring intelligent paging, which is the desired end state of this feature. 

> Remove resultset caching
> ------------------------
>
>                 Key: TEIID-168
>                 URL: https://jira.jboss.org/jira/browse/TEIID-168
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: JDBC Connector, Query Engine
>    Affects Versions: 6.x
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 6.1.0
>
>
> Resultset caching should be replaced with relation and procedure caching.  This would initially be backed by the buffermanager, based upon hints/costing, and be utilized by the planner rather than the resolver.  It would be good if we also detected the level of determinism.

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