Sometimes you need to iterate over a ton of items and you don't want the overhead of creating AR objects out of all of them. Hell, you only need a few things! Well, #pluck has your back.
But what if you want to iterate over many tonnes of items?
Pluck in batches to the rescue!
This fork works on any orderable primary key not just integers just like http://api.rubyonrails.org/classes/ActiveRecord/Batches.html#method-i-find_in_batches