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https://issues.apache.org/jira/browse/CALCITE-30?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15497287#comment-15497287
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Julian Hyde commented on CALCITE-30:
------------------------------------

While the fix doesn't go as far as the description, it still does a lot. If the 
framework is running in the same JVM it can poll the cancel flag. If a 
particular framework uses distributed/remote execution it can (in principle - I 
haven't tried it) generate code so that the cancel is propagated to the remote 
node(s). I think it's correct to mark this case complete and move on; feel free 
to log a follow-on case for any remaining work.

> Implement Statement.cancel method
> ---------------------------------
>
>                 Key: CALCITE-30
>                 URL: https://issues.apache.org/jira/browse/CALCITE-30
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: GitHub Import
>              Labels: github-import, newbie
>             Fix For: 1.9.0
>
>
> would be good to have the ability to push a cancel() call down to the 
> underlying framework.
> this would allow for a Cascading Flow to be stopped mid-flight.
> ---------------- Imported from GitHub ----------------
> Url: https://github.com/julianhyde/optiq/issues/30
> Created by: [cwensel|https://github.com/cwensel]
> Labels: 
> Created at: Sun Mar 17 03:06:57 CET 2013
> State: open



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