diff --git a/src/utils/relation.ts b/src/utils/relation.ts
index 20290d2..3e96f11 100644
--- a/src/utils/relation.ts
+++ b/src/utils/relation.ts
@@ -28,6 +28,8 @@ export function whereAddressQuery(query: string) {
   ];
 }
 
-export function queryOrNot<T>(query: string | boolean, where: T): T | undefined {
-  return !!query ? where : undefined;
+export function queryOrNot<T>(query: string | boolean, where: T): T | undefined;
+export function queryOrNot<T, U>(query: string | boolean, where: T, fallback: U): T | U;
+export function queryOrNot<T, U>(query: string | boolean, where: T, fallback?: U) {
+  return !!query ? where : fallback;
 }