Deepak Jaiswal created HIVE-15808:
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Summary: Remove Semijoin reduction branch on reducers if there is
hash join
Key: HIVE-15808
URL: https://issues.apache.org/jira/browse/HIVE-15808
Project: Hive
Issue Type: Bug
Reporter: Deepak Jaiswal
Assignee: Deepak Jaiswal
It is found that the current logic of cycle detection does not find cycles
created when there is a semijoin branch parallel to a hash join on a reducer.
To avoid such cycles, remove the semijoin reduction optimization.
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