add missing quote to alias

Author: sh-rp

dlt/destinations/dataset/utils.py

@@ -146,7 +146,9 @@ def normalize_query(
                     if node.db != expanded_path[0]:
                         node.set("catalog", sqlglot.to_identifier(expanded_path[0], quoted=False))
         if isinstance(node, sge.Alias):
-            node.set("alias", naming.normalize_identifier(node.alias))
+            node.set(
+                "alias", sqlglot.to_identifier(naming.normalize_identifier(node.alias), quoted=True)
+            )
         # quote and case-fold identifiers, TODO: maybe we could be more intelligent, but then we need to unquote ibis
         if isinstance(node, sge.Identifier):
             if is_casefolding: