making sure every Column has a column_type property

Author: dantownsend

piccolo/columns/base.py

@@ -462,15 +462,16 @@ def get_sql_value(self, value: t.Any) -> t.Any:
 
         return output
 
+    @property
+    def column_type(self):
+        return self.__class__.__name__.upper()
+
     @property
     def querystring(self) -> QueryString:
         """
         Used when creating tables.
         """
-        column_type = getattr(
-            self, "column_type", self.__class__.__name__.upper()
-        )
-        query = f'"{self._meta.name}" {column_type}'
+        query = f'"{self._meta.name}" {self.column_type}'
         if self._meta.primary:
             query += " PRIMARY"
         if self._meta.key: