cfpb/mapusaurus — pull request #56 by cmc333333 (2014-07-22 07:06:19+00:00)
Title: Fix import bug with large amounts of data

Django's orm caches query results by default, which is handy until you need to step through each of a few thousand complicated geometries (as when converting all US census tracts).

This replaces such queries with a call to `iterator()` a la https://docs.djangoproject.com/en/dev/ref/models/querysets/#iterator