[teiid-issues] [JBoss JIRA] (TEIID-2390) Improve xml/json production

Fri Apr 19 13:51:53 EDT 2013

    [ https://issues.jboss.org/browse/TEIID-2390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12768907#comment-12768907 ] 

Steven Hawkins commented on TEIID-2390:
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There isn't quite a straight-forward way to do this with our current logic.  The bottom up evaluation would need some kind of top down handling - but nothing like that exists in the evaluator or the static implementation classes.

> Improve xml/json production
> ---------------------------
>
>                 Key: TEIID-2390
>                 URL: https://issues.jboss.org/browse/TEIID-2390
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Query Engine
>            Reporter: Steven Hawkins
>            Assignee: Steven Hawkins
>             Fix For: 8.4
>
>
> The current xml/json logic can produce a lot of intermediate results that are recopied and can result in a slower performance for larger documents.  
> The logic could allow for nested evaluations to delay creating their full string forms or simply allow the return values to remain appendable rather than requiring full copies.

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