added an extra sanity check where multiple typename conditions are pr…

…ovided
apollographql · Jan 29, 2025 · 294c280 · 294c280
1 parent fb9e5d2
commit 294c280
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/apollo-federation/src/correctness/query_plan_analysis.rs b/apollo-federation/src/correctness/query_plan_analysis.rs
@@ -306,6 +306,9 @@ fn rename_at_path(
             rename_at_path(schema, state, type_filter, rest, new_name)
         }
         FetchDataPathElement::TypenameEquals(type_name) => {
+            if type_filter.is_some() {
+                return Err("rename_at_path: multiple type filters".to_string());
+            }
             let type_filter = Some(type_name.clone());
             rename_at_path(schema, state, type_filter, rest, new_name)
         }