batch import a set of users project subscriptions
batch import a set of users project subscriptions

Group by query on the project subscriptions was creating tmp tables and was killing zoo home db. Do small batches of users to reduce this query cost.
parrish/Panoptes,zooniverse/Panoptes,parrish/Panoptes,zooniverse/Panoptes,zooniverse/Panoptes,edpaget/Panoptes,camallen/Panoptes,astopy/Panoptes,rogerhutchings/Panoptes,zooniverse/Panoptes,camallen/Panoptes,parrish/Panoptes,parrish/Panoptes,srallen/Panoptes,srallen/Panoptes,rogerhutchings/Panoptes,edpaget/Panoptes,edpaget/Panoptes,rogerhutchings/Panoptes,astopy/Panoptes,camallen/Panoptes,edpaget/Panoptes,astopy/Panoptes,srallen/Panoptes,astopy/Panoptes,rogerhutchings/Panoptes,camallen/Panoptes,srallen/Panoptes