Csaba Ringhofer created IMPALA-11018:
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Summary: Implement UNION and EXCEPT operations for collections
Key: IMPALA-11018
URL: https://issues.apache.org/jira/browse/IMPALA-11018
Project: IMPALA
Issue Type: New Feature
Components: Backend, Frontend
Reporter: Csaba Ringhofer
This would require implementing equality predicates and hashing for collections.
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