fix: RLS in virtual datasets (#36061)

superset/sql/parse.py

@@ -168,14 +168,7 @@ class RLSTransformer:
             table_node.catalog if table_node.catalog else self.catalog,
         )
         if predicates := self.rules.get(table):
-            return (
-                exp.And(
-                    this=predicates[0],
-                    expressions=predicates[1:],
-                )
-                if len(predicates) > 1
-                else predicates[0]
-            )
+            return sqlglot.and_(*predicates)
 
         return None
 
@@ -312,6 +305,21 @@ class Table:
     def __eq__(self, other: Any) -> bool:
         return str(self) == str(other)
 
+    def qualify(
+        self,
+        *,
+        catalog: str | None = None,
+        schema: str | None = None,
+    ) -> Table:
+        """
+        Return a new Table with the given schema and/or catalog, if not already set.
+        """
+        return Table(
+            table=self.table,
+            schema=self.schema or schema,
+            catalog=self.catalog or catalog,
+        )
+
 
 # To avoid unnecessary parsing/formatting of queries, the statement has the concept of
 # an "internal representation", which is the AST of the SQL statement. For most of the