Github user hornn commented on the pull request:
https://github.com/apache/incubator-hawq/pull/302#issuecomment-179682943
@tzolov regarding test coverage, what you did is very impressive.
Normally we have an automation suite where we test end to end query using a
specific plugin, but I really like the idea of PxfUnit.
I think after your commit is done we'll also have to add automation tests,
but they will probably not be as exhaustive as what you already did.
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