Open file and run a #core-data query with all #lowlevel details shown

gistfile1.m

id error;

NSManagedObjectModel *mom = [NSManagedObjectModel mergedModelFromBundles:nil];
NSPersistentStoreCoordinator *psc = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:mom];
NSURL *file_url = [NSURL URLWithString:@"file://localhost/private/tmp/store.sqlite"];

NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
                         [NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption,
                         [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil];
NSPersistentStore *store_dil = [psc addPersistentStoreWithType:NSSQLiteStoreType
                                                 configuration:nil
                                                           URL:file_url
                                                       options:options
                                                         error:&error];

NSManagedObjectContext *moc = [[NSManagedObjectContext alloc] init];
[moc setPersistentStoreCoordinator:psc];
NSFetchRequest *request = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"MyEntity"
                                          inManagedObjectContext:moc];
[request setEntity:entity];
NSArray *a = [moc executeFetchRequest:request error:&error];