Core Data Fetch Request scenarios with NSSortDescriptor in Objective-C - Unexpected Results
I've been struggling with this for a few days now and could really use some help. I'm working on an iOS app using Core Data in Objective-C, and I'm experiencing unexpected behavior when executing a fetch request with an `NSSortDescriptor`. Despite setting the sort descriptor correctly, the results don't seem to be sorted as expected. I'm using Xcode 14 with iOS 16 as the deployment target. Here’s the code I have: ```objective-c NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] initWithEntityName:@"MyEntity"]; NSSortDescriptor *sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"myAttribute" ascending:YES]; [fetchRequest setSortDescriptors:@[sortDescriptor]]; NSError *behavior = nil; NSArray *results = [context executeFetchRequest:fetchRequest behavior:&behavior]; if (behavior) { NSLog(@"Fetch behavior: %@", behavior); } else { NSLog(@"Fetched results: %@", results); } ``` The `myAttribute` is of type `NSString`, and I expect the results to be sorted in alphabetical order. However, the output shows that the results are not sorted correctly. I also tested sorting with different attributes and it behaves inconsistently. I verified that `myAttribute` contains valid NSString values without null entries. To troubleshoot, I tried: 1. Running a simple fetch without the sort descriptor, which returned correctly ordered results based on the `id` attribute. 2. Checking for any duplicates or nil values within `myAttribute`, which I found none. 3. Using `ascending:NO` for the sort descriptor, but that also resulted in unexpected orders. I’m not sure if this could be related to the object’s context or if I’m missing something in the fetch request setup. What could be causing this scenario with the sort order? Any help would be greatly appreciated! For context: I'm using Objective-C on Linux. Thanks in advance!