Gunther Hagleitner created HIVE-4179:
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Summary: NonBlockingOpDeDup does not merge SEL operators correctly
Key: HIVE-4179
URL: https://issues.apache.org/jira/browse/HIVE-4179
Project: Hive
Issue Type: Bug
Reporter: Gunther Hagleitner
Assignee: Gunther Hagleitner
The input columns list for SEL operations isn't merged properly in the
optimization. The best way to see this is running union_remove_22.q with
-Dhadoop.mr.rev=23. The plan shows lost UDFs and a broken lineage for one
column.
Note: union_remove tests do not run on hadoop 1 or 0.20.
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