I expect it should work:
```
:) select CAST(CAST('{"x" : 1}', 'Object(\'json\')'), 'Object(Nullable(\'json\'))')

SELECT CAST(CAST('{"x" : 1}', 'Object(\'json\')'), 'Object(Nullable(\'json\'))')

Query id: fb057b45-b72a-4d22-9b38-a3136cdf2465


0 rows in set. Elapsed: 0.002 sec.

Received exception from server (version 22.5.1):
Code: 53. DB::Exception: Received from localhost:9000. DB::Exception: Cast to Object can be performed only from flatten named Tuple, Map or String. Got: Object('json'): While processing CAST(CAST('{"x" : 1}', 'Object(\'json\')'), 'Object(Nullable(\'json\'))'). (TYPE_MISMATCH)
```

@CurtizJ what do you think?
&& right_float <= static_cast<Float64>(std::numeric_limits<T>::max()))
                return { .is_monotonic = true };
            return {};
        }
        
        const bool from_is_unsigned = type.isValueRepresentedByUnsignedInteger();
        const bool to_is_unsigned = is_unsigned_v<T>;
        const size_t size_of_from = type.getSizeOfValueInMemory();
        const size_t size_of_to = sizeof(T);
        const bool left_in_first_half = left.isNull()
            ? from_is_unsigned
            : (left.get<Int64>() >= 0);
        const bool right_in_first_half = right.isNull()
            ? !from_is_unsigned
            : (right.get<Int64>() >= 0);
        
        if (size_of_from == size_of_to)
        {
            if (from_is_unsigned == to_is_unsigned)
                return { .is_monotonic = true, .is_always_monotonic = true };
            if (left_in_first_half == right_in_first_half)
                return { .is_monotonic = true };
            return {};
        }
        
        if (size_of_from < size_of_to)
        {
            if (from_is_unsigned == to_is_unsigned)
                return { .is_monotonic = true, .is_always_monotonic = true };
            if (!to_is_unsigned)