fix(ts-sdk): use textLemmatized for BM25 keyword search on Milvus, OpenSearch, and MongoDB (#6497)

Co-authored-by: kartik-mem0 <kartik.labhshetwar@mem0.ai>
2026-07-23 00:39:18 +05:30
parent a58e0586ad
commit 9caffeaa7b
6 changed files with 194 additions and 27 deletions
@@ -153,4 +153,26 @@ describe("OpenSearchDB", () => {

    await expect(store.get("missing")).resolves.toBeNull();
  });
+
+  it("keywordSearch queries lemmatized payload fields", async () => {
+    const client = createClient();
+    const store = await createStore(client);
+
+    await store.keywordSearch("stud french", 5, { user_id: "alice" });
+
+    const searchCall = client.search.mock.calls.find(
+      ([arg]: any[]) => arg.index === collectionName,
+    );
+    expect(searchCall).toBeDefined();
+    const should = searchCall![0].body.query.bool.should;
+    expect(should).toContainEqual({
+      match: { "payload.textLemmatized": "stud french" },
+    });
+    expect(should).toContainEqual({
+      match: { "payload.text_lemmatized": "stud french" },
+    });
+    expect(should).toContainEqual({
+      match: { "payload.data": "stud french" },
+    });
+  });
 });