Commits
Uwe L. Korn authored and Wes McKinney committed 121e8268234
ARROW-361: Python: Support reading a column-selection from Parquet files Author: Uwe L. Korn <uwelk@xhochy.com> Closes #197 from xhochy/ARROW-361 and squashes the following commits: c1fb939 [Uwe L. Korn] Cache column indices 0c32213 [Uwe L. Korn] ARROW-361: Python: Support reading a column-selection from Parquet files