Prasanth Jayachandran created HIVE-14310:
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Summary: ORC schema evolution should not completely disable PPD
Key: HIVE-14310
URL: https://issues.apache.org/jira/browse/HIVE-14310
Project: Hive
Issue Type: Bug
Affects Versions: 2.2.0
Reporter: Prasanth Jayachandran
Assignee: Prasanth Jayachandran
Priority: Critical
Follow up for HIVE-14214 which completely shuts off PPD when there is any
schema evolution. Some evolutions are safer for PPD like
byte -> short -> int -> long
float -> double
conversions between char, varchar and strings
For all other conversions we can disable PPD for that specific column that has
evolved by returning TruthValue.YES_NO
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