Zoltan Haindrich created HIVE-25311: ---------------------------------------
Summary: Slow compilation of union operators with >100 branches
Key: HIVE-25311
URL: https://issues.apache.org/jira/browse/HIVE-25311
Project: Hive
Issue Type: Improvement
Reporter: Zoltan Haindrich
Assignee: Zoltan Haindrich
during the processing of an N way union operator the full plan is cloned N
times; which might hurt compilation time performance
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