Commits
Korn, Uwe authored 34190587a6d
ARROW-2806: [C++/Python] More consistent null/nan handling I'll take care of the cast issues mentioned in the ticket in a separate PR, already opened https://issues.apache.org/jira/browse/ARROW-2854 for them. Author: Korn, Uwe <Uwe.Korn@blue-yonder.com> Closes #2270 from xhochy/ARROW-2806 and squashes the following commits: 418f3fb0 <Korn, Uwe> ARROW-2806: More consistent null/nan handling