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https://issues.apache.org/jira/browse/HIVE-17276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-17276 started by Jesus Camacho Rodriguez.
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> Check max shuffle size when converting to dynamically partitioned hash join
> ---------------------------------------------------------------------------
>
> Key: HIVE-17276
> URL: https://issues.apache.org/jira/browse/HIVE-17276
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer
> Affects Versions: 3.0.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
>
> Currently we only check that the max number of entries in the hashmap for a
> MapJoin surpasses a certain threshold to decide whether to execute a
> dynamically partitioned hash join.
> We would like to factor the size of the large input that we will shuffle for
> the dynamically partitioned hash join into the cost model too.
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