Jonathan Chang created HIVE-2977:
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Summary: Type widening on Union Alls doesn't make sense.
Key: HIVE-2977
URL: https://issues.apache.org/jira/browse/HIVE-2977
Project: Hive
Issue Type: Bug
Reporter: Jonathan Chang
Assignee: Namit Jain
When type widening occurs in a UNION ALL query between a STRING column and a
BIGINT column, both are casted to DOUBLE which doesn't make any sense since
this is lossy for both inputs. It should cast both to STRING.
Additionally this should throw an error in strict mode.
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