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https://issues.apache.org/jira/browse/HIVE-8640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14256049#comment-14256049
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Szehon Ho commented on HIVE-8640:
---------------------------------

It's the same flags/hints as applied to MapReduce, so I think we dont need to 
change any docs at least for configs, thanks.

> Support hints of SMBJoin [Spark Branch]
> ---------------------------------------
>
>                 Key: HIVE-8640
>                 URL: https://issues.apache.org/jira/browse/HIVE-8640
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>    Affects Versions: spark-branch
>            Reporter: Szehon Ho
>            Assignee: Szehon Ho
>              Labels: TODOC-SPARK
>             Fix For: spark-branch
>
>         Attachments: HIVE-8640.1-spark.patch, HIVE-8640.2-spark.patch, 
> HIVE-8640.3-spark.patch
>
>
> HIVE-8202 supports conversion of join to SMB Join automatically, which relies 
> on the configuration property: 
> "hive.auto.convert.sortmerge.join.bigtable.selection.policy".  
> This task is to support conversion based on map-hints, instead of this 
> policy.  As hints are deprecated, this would not be the primary policy in 
> line with MapReduce, but can be available as a backup to achieve feature 
> parity.



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