tree f24f01408df91fee7487cacd6a596e271b1ea467
parent aecf30529199ae9a8d9977c92054bfe4e8cd6a4f
author David Reiss <dreiss@fb.com> 1383939047 -0800
committer Michael Bolin <mbolin@fb.com> 1384307601 -0800

Factor out a helper in SplitZipStep.

Summary:
I'm going to be adding some complexity to
createRequiredInPrimaryZipPredicate, so pull part of it out as a helper
function to make some room.

Test Plan: Unit.