Collection querying via EF7 JSON column

Not sure if this is just not supported yet or I'm doing something wrong

I have a List of Addresses stored in database as a JSON array
[{"StreetAddress":"1615 Anzac Avenue","City":"Kallangur","State":"QLD","Postcode":"4503","Latitude":-27.24795613,"Longitude":153.01077159},{"StreetAddress":"1611 Anzac Avenue","City":"Kallangur","State":"QLD","Postcode":"4503","Latitude":-27.24779426,"Longitude":153.01015158}]

I've mapped this using the new Entity Framework 7 JSON column support
When I query it via OData the results return as expected
However when I try to use any filter on the collection I get LINQ expression errors:

e.g. $filter=Addresses/$count gt 0
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidOperationException: The LINQ expression 'DbSet<ApplicationODataRecord>() .Where(a => EF.Property<List<Address>>(a, "Addresses") .AsQueryable() .LongCount() > __TypedProperty_0)' could not be translated. Either rewrite the query in a form that can be translated, or switch to client evaluation explicitly by inserting a call to 'AsEnumerable', 'AsAsyncEnumerable', 'ToList', or 'ToListAsync'. See https://go.microsoft.com/fwlink/?linkid=2101038 for more information.

e.g. $filter=Addresses/any(a: a/Postcode eq '4503')
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidOperationException: The LINQ expression 'DbSet<ApplicationODataRecord>() .Where(a => EF.Property<List<Address>>(a, "Addresses") .AsQueryable() .Any(o => (string)o.Postcode == __TypedProperty_0))' could not be translated. Either rewrite the query in a form that can be translated, or switch to client evaluation explicitly by inserting a call to 'AsEnumerable', 'AsAsyncEnumerable', 'ToList', or 'ToListAsync'. See https://go.microsoft.com/fwlink/?linkid=2101038 for more information.