fix(vector-stores): scope Pinecone delete_col()/reset() to namespace (#6287)

mem0-ts/src/oss/src/tests/pinecone.test.ts

@@ -12,8 +12,9 @@ const upsert = jest.fn().mockResolvedValue(undefined);
 const query = jest.fn().mockResolvedValue({ matches: [] });
 const fetch = jest.fn().mockResolvedValue({ records: {} });
 const deleteOne = jest.fn().mockResolvedValue(undefined);
+const deleteAll = jest.fn().mockResolvedValue(undefined);
 
-const nsHandle = { upsert, query, fetch, deleteOne };
+const nsHandle = { upsert, query, fetch, deleteOne, deleteAll };
 const namespace = jest.fn().mockReturnValue(nsHandle);
 
 const describeIndexStats = jest
@@ -47,6 +48,7 @@ const __mocks__ = {
   query,
   fetch,
   deleteOne,
+  deleteAll,
   namespace,
   describeIndexStats,
   index,
@@ -94,6 +96,7 @@ beforeEach(() => {
   __mocks__.query.mockResolvedValue({ matches: [] });
   __mocks__.fetch.mockResolvedValue({ records: {} });
   __mocks__.deleteOne.mockResolvedValue(undefined);
+  __mocks__.deleteAll.mockResolvedValue(undefined);
   __mocks__.describeIndexStats.mockResolvedValue({
     totalRecordCount: 0,
     namespaces: {},
@@ -104,6 +107,7 @@ beforeEach(() => {
     query: __mocks__.query,
     fetch: __mocks__.fetch,
     deleteOne: __mocks__.deleteOne,
+    deleteAll: __mocks__.deleteAll,
   };
   __mocks__.namespace.mockReturnValue(nsHandle);
   __mocks__.index.mockReturnValue({
@@ -424,6 +428,14 @@ describe("deleteCol", () => {
     await db.initialize();
     expect(__mocks__.createIndex).toHaveBeenCalledTimes(2);
   });
+
+  it("clears only the namespace and never drops the shared index", async () => {
+    const db = await initDb({ namespace: "tenant-a" });
+    await db.deleteCol();
+    expect(__mocks__.namespace).toHaveBeenCalledWith("tenant-a");
+    expect(__mocks__.deleteAll).toHaveBeenCalled();
+    expect(__mocks__.deleteIndex).not.toHaveBeenCalled();
+  });
 });
 
 describe("list", () => {

mem0-ts/src/oss/src/vector_stores/pinecone.ts

@@ -316,6 +316,11 @@ export class PineconeDB implements VectorStore {
   }
 
   async deleteCol(): Promise<void> {
+    if (this.namespace) {
+      await this.initialize();
+      await this.namespacedIndex().deleteAll();
+      return;
+    }
     if (this._initPromise) {
       await this._initPromise.catch(() => {});
     }