[jira] [Updated] (DRILL-2837) Resolve Statement.cancel() really should do

["Daniel Barclay (Drill) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-2837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Barclay (Drill) updated DRILL-2837:
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    Summary: Resolve Statement.cancel() really should do  (was: Resolve what JDBC's Statement.cancel() really does)

> Resolve Statement.cancel() really should do
> -------------------------------------------
>
>                 Key: DRILL-2837
>                 URL: https://issues.apache.org/jira/browse/DRILL-2837
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Client - JDBC
>            Reporter: Daniel Barclay (Drill)
>            Assignee: Daniel Barclay (Drill)
>
> It is not clear exactly what JDBC's Statement.cancel() method is supposed to do.
> The Javadoc method description for cancel() says only:
> "Cancels this Statement object if both the DBMS and driver support aborting an SQL statement. This method can be used by one thread to cancel a statement that is being executed by another thread."
> The JDBC PDF specification 
> It seems reasonable to think that calling calling() on a Statement causes any associated query that has not already completed to be canceled, causes any associated ResultSet that is not already closed to be closed, and causes the statement to be closed.
> In particular, it doesn't say whether the Statement object is closed or that any ResultSet is closed (and doesn't actually say that the query is canceled).
> However, 



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