diff --git a/packages/core/client/src/data-source/__tests__/collection/Collection.test.tsx b/packages/core/client/src/data-source/__tests__/collection/Collection.test.tsx
index b929f8ffc5..020e68afc4 100644
--- a/packages/core/client/src/data-source/__tests__/collection/Collection.test.tsx
+++ b/packages/core/client/src/data-source/__tests__/collection/Collection.test.tsx
@@ -181,6 +181,23 @@ describe('Collection', () => {
     });
   });
 
+  describe('getFilterTargetKey()', () => {
+    test('not set as id', () => {
+      const collection = getCollection({ name: 'test' });
+      expect(collection.getFilterTargetKey()).toBe('id');
+    });
+
+    test('single ftk', () => {
+      const collection = getCollection({ name: 'test', filterTargetKey: 'a' });
+      expect(collection.getFilterTargetKey()).toBe('a');
+    });
+
+    test('multiple ftk', () => {
+      const collection = getCollection({ name: 'test', filterTargetKey: ['a', 'b'] });
+      expect(collection.getFilterTargetKey()).toMatchObject(['a', 'b']);
+    });
+  });
+
   test('properties', () => {
     const app = new Application({
       dataSourceManager: {
diff --git a/packages/core/client/src/data-source/collection/Collection.ts b/packages/core/client/src/data-source/collection/Collection.ts
index 7eaf1daf9f..b8cdc04525 100644
--- a/packages/core/client/src/data-source/collection/Collection.ts
+++ b/packages/core/client/src/data-source/collection/Collection.ts
@@ -164,6 +164,9 @@ export class Collection {
 
     return this.primaryKey;
   }
+  getFilterTargetKey() {
+    return this.filterTargetKey || this.getPrimaryKey() || 'id';
+  }
 
   get inherits() {
     return this.options.inherits || [];
diff --git a/packages/core/client/src/data-source/collection/CollectionManager.ts b/packages/core/client/src/data-source/collection/CollectionManager.ts
index 90bf4f23d5..dc0ba90ff4 100644
--- a/packages/core/client/src/data-source/collection/CollectionManager.ts
+++ b/packages/core/client/src/data-source/collection/CollectionManager.ts
@@ -164,7 +164,6 @@ export class CollectionManager {
       );
       return;
     }
-    const getTargetKey = (collection: Collection) => collection.filterTargetKey || collection.getPrimaryKey() || 'id';
 
     const buildFilterByTk = (targetKey: string | string[], record: Record<string, any>) => {
       if (Array.isArray(targetKey)) {
@@ -179,7 +178,7 @@ export class CollectionManager {
     };
 
     if (collectionOrAssociation instanceof Collection) {
-      const targetKey = getTargetKey(collectionOrAssociation);
+      const targetKey = collectionOrAssociation.getFilterTargetKey();
       return buildFilterByTk(targetKey, collectionRecordOrAssociationRecord);
     }
 
@@ -204,7 +203,7 @@ export class CollectionManager {
       );
       return;
     }
-    const targetKey = getTargetKey(targetCollection);
+    const targetKey = targetCollection.getFilterTargetKey();
     return buildFilterByTk(targetKey, collectionRecordOrAssociationRecord);
   }