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https://issues.apache.org/jira/browse/HIVE-9561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rui Li updated HIVE-9561:
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Attachment: HIVE-9561.2-spark.patch
The changes to golden files are all in query plan: mostly changing from
SHUFFLE_SORT to MR_SHUFFLE. I verified those queries don't have order by. Some
tests need improvement which is tracked by HIVE-9666.
> SHUFFLE_SORT should only be used for order by query [Spark Branch]
> ------------------------------------------------------------------
>
> Key: HIVE-9561
> URL: https://issues.apache.org/jira/browse/HIVE-9561
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Rui Li
> Assignee: Rui Li
> Attachments: HIVE-9561.1-spark.patch, HIVE-9561.2-spark.patch
>
>
> The {{sortByKey}} shuffle launches probe jobs. Such jobs can hurt performance
> and are difficult to control. So we should limit the use of {{sortByKey}} to
> order by query only.
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