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https://issues.apache.org/jira/browse/HIVE-16600?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liyunzhang_intel updated HIVE-16600:
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Attachment: HIVE-16600.patch
> Refactor SetSparkReducerParallelism#needSetParallelism to enable parallel
> order by in multi_insert cases
> --------------------------------------------------------------------------------------------------------
>
> Key: HIVE-16600
> URL: https://issues.apache.org/jira/browse/HIVE-16600
> Project: Hive
> Issue Type: Sub-task
> Reporter: liyunzhang_intel
> Assignee: liyunzhang_intel
> Attachments: HIVE-16600.patch
>
>
> in multi_insert cases multi_insert_gby2.q, the parallelism of SORT operator
> is 1 even we set "hive.optimize.sampling.orderby" = true. This is because
> the logic of SetSparkReducerParallelism#needSetParallelism does not support
> this case.
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