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Posted to dev@hive.apache.org by "piyush mukati (JIRA)" <ji...@apache.org> on 2017/12/21 14:31:00 UTC

[jira] [Created] (HIVE-18325) sending flag to do case unaware schema evolution to reader.

piyush mukati created HIVE-18325:
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             Summary: sending flag to do case unaware schema evolution to reader.
                 Key: HIVE-18325
                 URL: https://issues.apache.org/jira/browse/HIVE-18325
             Project: Hive
          Issue Type: Bug
          Components: ORC
            Reporter: piyush mukati
            Assignee: piyush mukati


in case of orc data reader schema passed by hive are all small cases and if the column name stored in the file has any uppercase, it will return null values for those columns even if the data is present in the file. 
Column name matching while schema evolution should be case unaware. 
we need to pass config for same from hive. the config(orc.schema.evolution.case.sensitive) in orc will be exposed by https://issues.apache.org/jira/browse/ORC-264 
 



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