Deepak Jaiswal created HIVE-16947:
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Summary: Semijoin Reduction : Task cycle created due to multiple
semijoins in conjunction with hashjoin
Key: HIVE-16947
URL: https://issues.apache.org/jira/browse/HIVE-16947
Project: Hive
Issue Type: Bug
Reporter: Deepak Jaiswal
Assignee: Deepak Jaiswal
Typically a semijoin branch and a mapjoin may create a cycle when on same
operator tree. This is already handled, however, a semijoin branch can serve
more than one filters and the cycle detection logic currently only handles the
1st one causing cycles preventing the queries from running.
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