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https://issues.apache.org/jira/browse/HIVE-5270?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gunther Hagleitner updated HIVE-5270:
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Attachment: HIVE-5270.4.patch
> Enable hash joins using tez
> ---------------------------
>
> Key: HIVE-5270
> URL: https://issues.apache.org/jira/browse/HIVE-5270
> Project: Hive
> Issue Type: Bug
> Components: Tez
> Affects Versions: tez-branch
> Reporter: Vikram Dixit K
> Assignee: Vikram Dixit K
> Attachments: BroadCastJoinsHiveOnTez.pdf, HIVE-5270.1.patch,
> HIVE-5270.2.patch, HIVE-5270.4.patch
>
>
> Since hash join involves replicating a hash table to all the map tasks, an
> equivalent operation needs to be performed in tez. In the tez world, such an
> operation is done via a broadcast edge (TEZ-410). We need to rework the
> planning and execution phases within hive for this.
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