Commits
Uwe L. Korn authored and Wes McKinney committed d946e7917d5
ARROW-354: Fix comparison of arrays of empty strings Author: Uwe L. Korn <uwelk@xhochy.com> Closes #189 from xhochy/ARROW-354 and squashes the following commits: 8f75d78 [Uwe L. Korn] ARROW-354: Fix comparison of arrays of empty strings