Commits

Wes McKinney authored 222cbfeea11
ARROW-998: [Format] Clarify that the IPC file footer contains an additional copy of the schema cc @TheNeuralBit Author: Wes McKinney <wes.mckinney@twosigma.com> Closes #694 from wesm/ARROW-998 and squashes the following commits: eec4fad [Wes McKinney] Clarify that the IPC file footer contains an additional copy of the schema