MIN and MAX should inherit type
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Key: HIVE-436
URL: https://issues.apache.org/jira/browse/HIVE-436
Project: Hadoop Hive
Issue Type: Wish
Reporter: Adam Kramer
MIN and MAX functions currently return the DOUBLE type...but really, they
should return the same type as the column they operate on.
In some cases like SUM, it's possible that the result would overflow making
DOUBLE more useful as it can drop digits and swap to scientific notation, but
MIN and MAX by definition cannot have this problem because the answers are
always represented in the column they are run across.
Easy workaround: CAST all of my MINs and MAXes. It's just a wish.
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