Open Radar

 
Summary:
My goal is to notify user when special record is updated. Perhaps I'm interested in record with attributes firstName == John and lastName == Dow. For this I build CKSubscription with NSPredicate * sPredicate = [NSPredicate predicateWithFormat:@"firstName == %@ && lastName == %@", @"John", @"Dow"];. After the subscription successfully saved in my database, I test it updating attribute "age" of record for John Dow. I never get notification though. But when I build and save my subscription with non-compound predicate like [NSPredicate predicateWithFormat:@"firstName == %@", @"John"]; or [NSPredicate predicateWithFormat:@"lastName == %@", @"Dow"]; then the notifications works fine to me. Since there is no proper documentation about the restrictions of Subscription's predicates, I have no idea what is wrong.

Steps to Reproduce:
1. Create and save record on cloud with attributes age:int, firstName:string, lastName:string with values 20, John, Dow respectively.
2. Create and save subscription with predicate [NSPredicate predicateWithFormat:@"firstName == %@ && lastName == %@", @"John", @"Dow"]; to get notified when John Dow's age is changed.
3. Change John Dow's age (either in a Dashboard or from your app).

Expected Results:
After age changed and record is saved the notification must be received.

Actual Results:
No notification received.

Version:
iOS 8.1

Notes:


Configuration:
iPhone 5