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https://issues.apache.org/jira/browse/CALCITE-2322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17370948#comment-17370948
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Zac commented on CALCITE-2322:
------------------------------

Thanks for the guidance [~julianhyde]! I'll open an updated PR shortly. 

> Add fetch size support to connection url and JDBC statement
> -----------------------------------------------------------
>
>                 Key: CALCITE-2322
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2322
>             Project: Calcite
>          Issue Type: Improvement
>          Components: avatica, core
>    Affects Versions: 1.11.0
>            Reporter: Kevin Minder
>            Priority: Major
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> Currently the remote driver defaults to hard coded fetch size of 100 rows.  
> When a connection is operating in HTTP mode having such a small fetch size 
> can add enormous overhead.  This is especially true if TLS connections are 
> used and made worse if each connection flows throw multiple proxies.  
> Consider that 100K rows returned 100 rows at a time will make 1K HTTP POST 
> requests.  One might say that nobody should ever do that but some tools like 
> Spotfire may end up doing this.



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