Github user omalley commented on the issue:
https://github.com/apache/orc/pull/308
Actually, this is doesn't match my experience. Hive doesn't support
uppercase letters in the top level column names, but it does support them in
sub-structs. Furthermore, ORC from other systems can handle the uppercase
letters.
You might also try setting "orc.schema.evolution.case.sensitive" to false
to get name-based matching of the ORC types that isn't case sensitive.
In terms of this patch, can you add a parameter that allows the user to
downcase the column names?
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