Github user liancheng commented on the pull request:
https://github.com/apache/spark/pull/208#issuecomment-38416577
@pwendell When I started on this PR, I was also puzzled which option to use
at first, until I saw the same usage in Scala standard library. But I should
confess that I wasn't 100% sure about what the first option exactly mean until
I played around both of them a bit.
I think the most significant "advantage" of the first option is that we
open parent packages implicitly. But since we forbid relative package imports,
this is not exactly an advantage any more. So I vote for the second option now.
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