Use dict based data instead of 2d-array in Type module as we are adding keys on the fly.

Reviewed By: Harshal Dhumal

web/pgadmin/browser/server_groups/servers/databases/schemas/types/__init__.py

@@ -403,7 +403,7 @@ class TypeView(PGChildNodeView, DataTypeReader):
                                             'additional_properties.sql']),
                                   type='c',
                                   typrelid=copy_dict['typrelid'])
-            status, rset = self.conn.execute_2darray(SQL)
+            status, rset = self.conn.execute_dict(SQL)
             if not status:
                 return internal_server_error(errormsg=res)