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https://issues.apache.org/jira/browse/HIVE-20222?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V updated HIVE-20222:
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Labels: mapreduce-feature (was: )
> Enable Skew Join Optimization For Outer Joins
> ---------------------------------------------
>
> Key: HIVE-20222
> URL: https://issues.apache.org/jira/browse/HIVE-20222
> Project: Hive
> Issue Type: New Feature
> Components: Logical Optimizer
> Affects Versions: 3.0.0, 4.0.0
> Reporter: BELUGA BEHR
> Priority: Major
> Labels: mapreduce-feature
>
> {code}
> // We are trying to adding map joins to handle skew keys, and map join right
> // now does not work with outer joins
> if (!GenMRSkewJoinProcessor.skewJoinEnabled(parseCtx.getConf(), joinOp))
> return;
> {code}
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