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https://issues.apache.org/jira/browse/TAJO-751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14386169#comment-14386169
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Jungryong Lee commented on TAJO-751:
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Thanks [~navis].
I am waiting for this feature.
I have evaluated Spotfire with this patch.
When I evaluate your patch, client always submits killQuery to Master and it
takes about 10 secs.
Spotfire always calls cancel method before close method when it finishes query
job.
For this reason, it takes at least 10 secs with Spotfire even though query
finishes within 1 sec.
It will be great if client doesn't send killQuery for already finished query.
> JDBC driver should support cancel() method.
> -------------------------------------------
>
> Key: TAJO-751
> URL: https://issues.apache.org/jira/browse/TAJO-751
> Project: Tajo
> Issue Type: Improvement
> Reporter: Hyoungjun Kim
> Assignee: Navis
> Priority: Minor
>
> Some OLAP or ETL tool call JDBC's cancel() function when a query is too late.
> So Tajo's JDBC should support cancel() function in Statement or
> PreparedStatement class.
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