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Outer join handles case when both are empty #1065

Merged
merged 1 commit into from
Sep 24, 2014
Merged

Outer join handles case when both are empty #1065

merged 1 commit into from
Sep 24, 2014

Commits on Sep 24, 2014

  1. Outer join handles case when both are empty 

    - If we are doing an outer join (K, A) x (K, B) by itself then it makes sense to assume that either A or B must exist for every key, but when composed with subsequent joins it is possible to get a key for which both A and B would be empty and the correct interpretation is to return an empty iterator (previously would do (None, None))
    Adam Poswolsky committed Sep 24, 2014
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