title: Migrating large Core Data database crash
body: <p>I've got an application that stores products in a Core Data file. These pruducts include images as "Transformable" data.
  Now I tried adding some attributes using Lightweight migration. When I tested this with a small database it worked well but when I use a really large one with nearly 500 MB the application usually crashes because of low memory. Does anybody know how to solve this problem?</p>
  
  <p>Thanks in advanced!</p>