ok

app/services/sql_validator_service.py

@@ -195,7 +195,9 @@ def _check_best_practices(statement: exp.Expression) -> list[str]:
             "DELETE without a WHERE clause will remove every row from the table."
         )
     for join in statement.find_all(exp.Join):
-        if (join.args.get("kind") or "").upper() == "NATURAL":
+        kind = (join.args.get("kind") or "").upper()
+        method = (join.args.get("method") or "").upper()
+        if kind == "NATURAL" or method == "NATURAL":
             warnings.append(
                 "NATURAL JOIN can produce unexpected column matches — "
                 "prefer explicit JOIN conditions."