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https://issues.apache.org/jira/browse/HIVE-10458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14550466#comment-14550466
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Xuefu Zhang commented on HIVE-10458:
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[~ruili], Yes, it makes sense to create a separate jIRA to track the issue.
Before doing that, could you double check for MR if there is anything
specifically done in fetch operator to make the order deterministic? Thanks.
> Enable parallel order by for spark [Spark Branch]
> -------------------------------------------------
>
> Key: HIVE-10458
> URL: https://issues.apache.org/jira/browse/HIVE-10458
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Rui Li
> Assignee: Rui Li
> Attachments: HIVE-10458.1-spark.patch, HIVE-10458.2-spark.patch,
> HIVE-10458.3-spark.patch
>
>
> We don't have to force reducer# to 1 as spark supports parallel sorting.
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