Hi,

> My intention is that we can iterate on the UNSTABLE-PRE-2.0 format without
> cross-version compatibility. It will only be used for developer testing. 

Sounds good - I tested Hive can communicate this to ORC correctly.

set hive.exec.orc.write.format="UNSTABLE-PRE-2.0";

offers a very loosely coupled connectivity for the new features being tested.

Cheers,
Gopal



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