Ordered Sets and Core Data (NSOrderedSet)

Question

I have a list of share prices with the properties dateTime and value.

Currently I am sorting the share prices when fetching them using a sort

Answer 1

Mark the Ordered checkbox of your property in your CoreData model.

Also be sure to set the CoreData automatic migration in your AppDelegate (options dictionary when creating PersistentStore). This way CoreData will be able to make this change without data lost.