Deepak Jaiswal created HIVE-20142:
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Summary: Semijoin Reduction : Peform cost based removal after rule
based removal.
Key: HIVE-20142
URL: https://issues.apache.org/jira/browse/HIVE-20142
Project: Hive
Issue Type: Task
Reporter: Deepak Jaiswal
Assignee: Deepak Jaiswal
The semijoin reduction removal logic is spread out into multiple functions.
Currently, the cost based removal logic is applied before the rule based(dumb)
ones.
Instead, apply the rule based removal logic and then apply the cost based
removal.
cc [~jdere] [~jcamachorodriguez]
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