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https://issues.apache.org/jira/browse/HIVE-23921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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mahesh kumar behera updated HIVE-23921:
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Description:
Support HiveJoinProjectTransposeRule for Anti Join
was:
If we have a PK-FK join that is only appending columns to the FK side, it
basically means it is not filtering anything (everything is matching). If that
is the case, then ANTIJOIN result would be empty. We could detect this at
planning time and trigger the rewriting.
> Support HiveJoinProjectTransposeRule for Anti Join
> --------------------------------------------------
>
> Key: HIVE-23921
> URL: https://issues.apache.org/jira/browse/HIVE-23921
> Project: Hive
> Issue Type: Bug
> Reporter: mahesh kumar behera
> Assignee: mahesh kumar behera
> Priority: Major
>
> Support HiveJoinProjectTransposeRule for Anti Join
>
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