Core Data fetch by property count

I'm trying to fetch just objects that has a nsset inside bigger then 0 in core data Something lik开发者_高级运维e

fetch all objects that object.set > 0

Does anyone know if this is possible?

Thanks

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I was able to find a way that works:

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"set.@count > 0"];

If there's a better way, please let me know, I'm posting here to help anyone that has the same problem.

Thanks