As far as I can tell, the predicate language doesn't really work
with pointers as much as strings and scalar fields.
I'm curious, what gives you this impression?
I guess it's that I didn't find documentation on what kinds of types
are available in predicates. I don't really know in what contexts
these things are expected to run, but it seems reasonable that there
may be places (a SQL database, say) where pointers don't make sense,
and hence the language is restricted to make conversion easy.
I'm still not 100% convinced that there is only one NSManagedObject
instance for each object in my Core Data database; it seems like it
should work that way, but I didn't really see that in the documentation.
Will this work?
Yes, it should work fine.
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