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Posted to dev@orc.apache.org by owen-hortonworks <gi...@git.apache.org> on 2017/11/28 22:13:40 UTC

[GitHub] orc issue #190: ORC-264 schema evolution columns name comparising is case un...

Github user owen-hortonworks commented on the issue:

    https://github.com/apache/orc/pull/190
  
    Unfortunately, this would break the non-sql clients. Looking more into Hive's behavior, it currently does:
    * lowercases all column names
    * preserves all struct field names
    
    That makes a mess. I'd propose that we add a new option for readers that makes schema evolution lowercase everything and Hive should always set that option.


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