Github user zhzhan commented on the pull request:
https://github.com/apache/spark/pull/2241#issuecomment-59145387
@marmbrus I actually quite exhaustively tested the code in both unit test
and system test in sandbox, and real cluster, and didn't see major issues.
Regarding the compatibility test, there are several test case failure due to
some hive 0.13 internal behavior change, e.g, hive decimal. We can fix it in
the follow up. In my point of view, it would be good to take a accumulative
approach. The current patch does not have impact on existing hive 12 support,
but enable the community to actively improve hive0.13 support.
Some instant benefits: 1st. Native parquet support, 2nd. some new UDFs in
hive 0.13, and 3rd: better support for ORC as source, e.g., compression,
predictor push down, etc.
Please let me know if you have any other concerns.
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