fix: try not uuid

.changeset/serious-ears-tap.md

@@ -0,0 +1,5 @@
+---
+"llamaindex": patch
+---
+
+fix: use UUID when inserting nodes in postgres

packages/llamaindex/e2e/node/vector-store/pg-vector-store.e2e.ts

@@ -1,4 +1,5 @@
 /* eslint-disable turbo/no-undeclared-env-vars */
+import { UUIDFromString } from "@llamaindex/core/utils";
 import { config } from "dotenv";
 import { Document, VectorStoreQueryMode } from "llamaindex";
 import { PGVectorStore } from "llamaindex/vector-store/PGVectorStore";
@@ -60,7 +61,7 @@ await test("simple node", async (t) => {
   const dimensions = 3;
   const schemaName =
     "llamaindex_vector_store_test_" + Math.random().toString(36).substring(7);
-  const nodeId = "5bb16627-f6c0-459c-bb18-71642813ef21";
+  const nodeId = "document_id_1";
   const node = new Document({
     text: "hello world",
     id_: nodeId,
@@ -78,6 +79,7 @@ await test("simple node", async (t) => {
 
   await vectorStore.add([node]);
 
+  const insertedNodeId = UUIDFromString(nodeId);
   {
     const result = await vectorStore.query({
       mode: VectorStoreQueryMode.DEFAULT,
@@ -85,16 +87,18 @@ await test("simple node", async (t) => {
       queryEmbedding: [1, 2, 3],
     });
     const actualJSON = result.nodes![0]!.toJSON();
+
     assert.deepStrictEqual(actualJSON, {
       ...node.toJSON(),
+      id_: insertedNodeId,
       hash: actualJSON.hash,
       metadata: actualJSON.metadata,
     });
-    assert.deepStrictEqual(result.ids, [nodeId]);
+    assert.deepStrictEqual(result.ids, [insertedNodeId]);
     assert.deepStrictEqual(result.similarities, [1]);
   }
 
-  await vectorStore.delete(nodeId);
+  await vectorStore.delete(insertedNodeId);
 
   {
     const result = await vectorStore.query({

packages/llamaindex/src/vector-store/PGVectorStore.ts

@@ -20,6 +20,7 @@ import type { BaseEmbedding } from "@llamaindex/core/embeddings";
 import { DEFAULT_COLLECTION } from "@llamaindex/core/global";
 import type { BaseNode, Metadata } from "@llamaindex/core/schema";
 import { Document, MetadataMode } from "@llamaindex/core/schema";
+import { UUIDFromString } from "@llamaindex/core/utils";
 
 // todo: create adapter for postgres client
 function fromVercelPool(client: VercelPool): IsomorphicDB {
@@ -293,7 +294,7 @@ export class PGVectorStore
 
   private getDataToInsert(embeddingResults: BaseNode<Metadata>[]) {
     return embeddingResults.map((node) => {
-      const id: any = node.id_.length ? node.id_ : null;
+      const id: any = node.id_.length ? UUIDFromString(node.id_) : null;
       const meta = node.metadata || {};
       if (!meta.create_date) {
         meta.create_date = new Date();