Simplify

sqlglot/expressions.py

@@ -6535,20 +6535,15 @@ def _apply_cte_builder(
 ) -> E:
     alias_expression = maybe_parse(alias, dialect=dialect, into=TableAlias, **opts)
     as_expression = maybe_parse(as_, dialect=dialect, **opts)
-    cte = CTE(this=as_expression, alias=alias_expression)
-    if materialized is not None:
-        cte.set("materialized", materialized)
-
-    properties: dict[str, bool] = {"recursive": recursive or False}
-
+    cte = CTE(this=as_expression, alias=alias_expression, materialized=materialized)
     return _apply_child_list_builder(
         cte,
         instance=instance,
         arg="with",
         append=append,
         copy=copy,
         into=With,
-        properties=properties,
+        properties={"recursive": recursive or False},
     )