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https://issues.apache.org/jira/browse/CALCITE-2301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16738602#comment-16738602
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Vladimir Sitnikov commented on CALCITE-2301:
--------------------------------------------

By the way, UTC_TIMESTAMP is almost the same as my System.currentTimeMillis 
since UTC_TIMESTAMP is computed quite late. For instance, UTC_TIMESTAMP does 
not include planning time.

> JDBC adapter: use query timeout from the top-level statement
> ------------------------------------------------------------
>
>                 Key: CALCITE-2301
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2301
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.16.0
>            Reporter: Fan Yang
>            Assignee: Julian Hyde
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: next
>
>
> It's not a good idea to have the magic number here. Also, databases may not 
> get back within 10 second for various reasons (e.g., in the case of JDBC 
> schema).



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