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https://issues.apache.org/jira/browse/CALCITE-626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14378629#comment-14378629
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Julian Hyde commented on CALCITE-626:
-------------------------------------

As you know I am trying to keep dependencies to a minimum. But would it be 
worth bringing in Guava (on the server side only) for its caches? IIRC they 
handle timeout elegantly.

> Provide means for Avatica statements to be close()'ed
> -----------------------------------------------------
>
>                 Key: CALCITE-626
>                 URL: https://issues.apache.org/jira/browse/CALCITE-626
>             Project: Calcite
>          Issue Type: New Feature
>            Reporter: Nick Dimiduk
>            Assignee: Julian Hyde
>              Labels: avatica
>             Fix For: next
>
>         Attachments: CALCITE-626.00.patch, CALCITE-626.01.patch, 
> CALCITE-626.02.patch, CALCITE-626.03.patch
>
>
> Without this, statement objects build up on the server. Simple approach adds 
> new RPC for this. Would be good to optimize such that closeOnCompletion such 
> that the additional Rpc is not needed.



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