index.union does not sort monotonic indexes #2196

mattijohn opened this Issue Nov 8, 2012 · 1 comment


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from StackOverflow:

While index.union is not guaranteed to sort results, it does not try to sort the result for monotonic indexes, but does try to sort non-monotonic indexes.


changhiskhan commented Nov 8, 2012

Looks like a bug in DatetimeIndex. We'll fix before the release. Thanks.

@wesm wesm closed this Nov 9, 2012

joaonatali pushed a commit to joaonatali/pandas that referenced this issue Nov 10, 2012

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