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https://issues.apache.org/jira/browse/HIVE-8970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14226114#comment-14226114
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Chao commented on HIVE-8970:
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This patch applies cleanly on my machine, not sure why it failed.
> Enable map join optimization only when hive.auto.convert.join is true [Spark
> Branch]
> ------------------------------------------------------------------------------------
>
> Key: HIVE-8970
> URL: https://issues.apache.org/jira/browse/HIVE-8970
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Affects Versions: spark-branch
> Reporter: Chao
> Assignee: Chao
> Fix For: spark-branch
>
> Attachments: HIVE-8970.1-spark.patch
>
>
> Right now, in Spark branch we enable MJ without looking at this
> configuration. The related code in {{SparkMapJoinOptimizer}} is commented
> out. We should only enable MJ when the flag is true.
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