fix: Fix JSON type handling (#19)

Author: hermanschaaf

cloudquery/sdk/scalar/scalar_factory.py

@@ -7,6 +7,7 @@
 from .date64 import Date64
 from .float import Float
 from .int import Int
+from .json import JSON
 from .list import List
 from .scalar import ScalarInvalidTypeError
 from .string import String
@@ -89,6 +90,6 @@ def new_scalar(self, dt: pa.DataType):
         elif dt == UUIDType():
             return UUID()
         elif dt == JSONType():
-            return String()
+            return JSON()
         else:
             raise ScalarInvalidTypeError("Invalid type {} for scalar".format(dt))

cloudquery/sdk/scalar/string.py

@@ -1,5 +1,4 @@
 from cloudquery.sdk.scalar import Scalar, ScalarInvalidTypeError
-from .scalar import NULL_VALUE
 
 
 class String(Scalar):