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https://issues.apache.org/jira/browse/CALCITE-3114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16858947#comment-16858947
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Julian Hyde commented on CALCITE-3114:
--------------------------------------

What are the performance benefits? Based on 
[this|https://javaee.github.io/tutorial/websocket.html] it seems that the main 
benefit is full duplex (i.e. server can initiate communication to the client). 
I don't think that is very important for JDBC. Like HTTP, it's still over  TCP, 
so I imagine the latency and throughput would be similar to HTTP.



> Support websocket transport
> ---------------------------
>
>                 Key: CALCITE-3114
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3114
>             Project: Calcite
>          Issue Type: Wish
>            Reporter: Leo Tu
>            Priority: Minor
>
> it would be greatly improve performance.



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