TST: test for GH2623, object in frame upconverting a datetime64[ns] in another column#3142

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jreback merged 1 commit intopandas-dev:masterfrom

Mar 22, 2013

Commits on Mar 21, 2013

TST: test for GH2623, object in frame upconverting a datetime64[ns] in another column
jreback
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