Allow UnionAll as input to subtypes and include UnionAll in its output#20307

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yuyichao merged 2 commits intomasterfrom yyc/subtypes

Feb 3, 2017

+42-8

Commits on Feb 2, 2017

Allow UnionAll as input to subtypes and include UnionAll in its output.
yuyichao
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test subtypes(::UnionAll)

Joe Petviashvili
authored and
yuyichao
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