Vectorize: optionally return metadata for a vector query

src/cloudflare/internal/compatibility-flags.d.ts

@@ -0,0 +1,32 @@
+// Copyright (c) 2017-2022 Cloudflare, Inc.
+// Licensed under the Apache 2.0 license found in the LICENSE file or at:
+//     https://opensource.org/licenses/Apache-2.0
+
+// Keep this in sync with compatibility-date.capnp
+// TODO(soon): See if we can automatically generate this from the capnp file
+export const formDataParserSupportsFiles: boolean;
+export const fetchRefusesUnknownProtocols: boolean;
+export const esiIncludeIsVoidTag: boolean;
+export const durableObjectFetchRequiresSchemeAuthority: boolean;
+export const streamsByobReaderDetachesBuffer: boolean;
+export const streamsJavaScriptControllers: boolean;
+export const jsgPropertyOnPrototypeTemplate: boolean;
+export const minimalSubrequests: boolean;
+export const noCotsOnExternalFetch: boolean;
+export const specCompliantUrl: boolean;
+export const globalNavigator: boolean;
+export const captureThrowsAsRejections: boolean;
+export const r2PublicBetaApi: boolean;
+export const obsolete14: boolean;
+export const noSubstituteNull: boolean;
+export const transformStreamJavaScriptControllers: boolean;
+export const r2ListHonorIncludeFields: boolean;
+export const exportCommonJsDefaultNamespace: boolean;
+export const obsolete19: boolean;
+export const webSocketCompression: boolean;
+export const nodeJsCompat: boolean;
+export const tcpSocketsSupport: boolean;
+export const specCompliantResponseRedirect: boolean;
+export const workerdExperimental: boolean;
+export const durableObjectGetExisting: boolean;
+export const vectorizeQueryMetadataOptional: boolean;

src/cloudflare/internal/test/vectorize/vectorize-api-test.js

@@ -19,53 +19,46 @@ export const test_vector_search_vector_query = {
   async test(ctr, env) {
     const IDX = env["vector-search"];
     {
-      // with returnVectors = true
+      // with returnValues = true, returnMetadata = true
       const results = await IDX.query(new Float32Array(new Array(5).fill(0)), {
         topK: 3,
-        returnVectors: true,
+        returnValues: true,
+        returnMetadata: true,
       });
       assert.equal(true, results.count > 0);
       /** @type {VectorizeMatches}  */
       const expected = {
         matches: [
           {
-            vectorId: "b0daca4a-ffd8-4865-926b-e24800af2a2d",
+            id: "b0daca4a-ffd8-4865-926b-e24800af2a2d",
+            values: [0.2331, 1.0125, 0.6131, 0.9421, 0.9661, 0.8121],
+            metadata: { text: "She sells seashells by the seashore" },
             score: 0.71151,
-            vector: {
-              id: "b0daca4a-ffd8-4865-926b-e24800af2a2d",
-              values: [0.2331, 1.0125, 0.6131, 0.9421, 0.9661, 0.8121],
-              metadata: { text: "She sells seashells by the seashore" },
-            },
           },
           {
-            vectorId: "a44706aa-a366-48bc-8cc1-3feffd87d548",
-            score: 0.68913,
-            vector: {
-              id: "a44706aa-a366-48bc-8cc1-3feffd87d548",
-              values: [0.2321, 0.8121, 0.6315, 0.6151, 0.4121, 0.1512],
-              metadata: {
-                text: "Peter Piper picked a peck of pickled peppers",
-              },
+            id: "a44706aa-a366-48bc-8cc1-3feffd87d548",
+            values: [0.2321, 0.8121, 0.6315, 0.6151, 0.4121, 0.1512],
+            metadata: {
+              text: "Peter Piper picked a peck of pickled peppers",
             },
+            score: 0.68913,
           },
           {
-            vectorId: "43cfcb31-07e2-411f-8bf9-f82a95ba8b96",
-            score: 0.94812,
-            vector: {
-              id: "43cfcb31-07e2-411f-8bf9-f82a95ba8b96",
-              values: [0.0515, 0.7512, 0.8612, 0.2153, 0.15121, 0.6812],
-              metadata: {
-                text: "You know New York, you need New York, you know you need unique New York",
-              },
+            id: "43cfcb31-07e2-411f-8bf9-f82a95ba8b96",
+            values: [0.0515, 0.7512, 0.8612, 0.2153, 0.15121, 0.6812],
+            metadata: {
+              text: "You know New York, you need New York, you know you need unique New York",
             },
+            score: 0.94812,
           },
         ],
         count: 3,
       };
       assert.deepStrictEqual(results, expected);
     }
+
     {
-      // with returnVectors unset (false)
+      // with returnValues = unset (false), returnMetadata = unset (false)
       const results = await IDX.query(new Float32Array(new Array(5).fill(0)), {
         topK: 3,
       });
@@ -74,15 +67,15 @@ export const test_vector_search_vector_query = {
       const expected = {
         matches: [
           {
-            vectorId: "b0daca4a-ffd8-4865-926b-e24800af2a2d",
+            id: "b0daca4a-ffd8-4865-926b-e24800af2a2d",
             score: 0.71151,
           },
           {
-            vectorId: "a44706aa-a366-48bc-8cc1-3feffd87d548",
+            id: "a44706aa-a366-48bc-8cc1-3feffd87d548",
             score: 0.68913,
           },
           {
-            vectorId: "43cfcb31-07e2-411f-8bf9-f82a95ba8b96",
+            id: "43cfcb31-07e2-411f-8bf9-f82a95ba8b96",
             score: 0.94812,
           },
         ],
@@ -141,7 +134,7 @@ export const test_vector_search_vector_insert_error = {
       try {
         await IDX.insert(newVectors);
       } catch (e) {
-        error = e;
+        error = /** @type {Error} */ (e);
       }
 
       assert.equal(
@@ -150,7 +143,7 @@ export const test_vector_search_vector_insert_error = {
       );
     }
   },
-}
+};
 
 export const test_vector_search_vector_upsert = {
   /**
@@ -233,8 +226,8 @@ export const test_vector_search_vector_get_ids = {
 export const test_vector_search_can_use_enum_exports = {
   async test() {
     assert.equal(
-      KnownModel["openapi-text-embedding-ada-002"],
-      "openapi-text-embedding-ada-002"
+      KnownModel["openai/text-embedding-ada-002"],
+      "openai/text-embedding-ada-002"
     );
     assert.equal(DistanceMetric.COSINE, "cosine");
   },

src/cloudflare/internal/test/vectorize/vectorize-mock.js

@@ -5,40 +5,34 @@
 /** @type {Array<VectorizeMatch>} */
 const exampleVectorMatches = [
   {
-    vectorId: "b0daca4a-ffd8-4865-926b-e24800af2a2d",
+    id: "b0daca4a-ffd8-4865-926b-e24800af2a2d",
+    values: [0.2331, 1.0125, 0.6131, 0.9421, 0.9661, 0.8121],
+    metadata: { text: "She sells seashells by the seashore" },
     score: 0.71151,
-    vector: {
-      id: "b0daca4a-ffd8-4865-926b-e24800af2a2d",
-      values: [0.2331, 1.0125, 0.6131, 0.9421, 0.9661, 0.8121],
-      metadata: { text: "She sells seashells by the seashore" },
-    },
   },
   {
-    vectorId: "a44706aa-a366-48bc-8cc1-3feffd87d548",
+    id: "a44706aa-a366-48bc-8cc1-3feffd87d548",
+    values: [0.2321, 0.8121, 0.6315, 0.6151, 0.4121, 0.1512],
+    metadata: { text: "Peter Piper picked a peck of pickled peppers" },
     score: 0.68913,
-    vector: {
-      id: "a44706aa-a366-48bc-8cc1-3feffd87d548",
-      values: [0.2321, 0.8121, 0.6315, 0.6151, 0.4121, 0.1512],
-      metadata: { text: "Peter Piper picked a peck of pickled peppers" },
-    },
   },
   {
-    vectorId: "43cfcb31-07e2-411f-8bf9-f82a95ba8b96",
-    score: 0.94812,
-    vector: {
-      id: "43cfcb31-07e2-411f-8bf9-f82a95ba8b96",
-      values: [0.0515, 0.7512, 0.8612, 0.2153, 0.15121, 0.6812],
-      metadata: {
-        text: "You know New York, you need New York, you know you need unique New York",
-      },
+    id: "43cfcb31-07e2-411f-8bf9-f82a95ba8b96",
+    values: [0.0515, 0.7512, 0.8612, 0.2153, 0.15121, 0.6812],
+    metadata: {
+      text: "You know New York, you need New York, you know you need unique New York",
     },
+    score: 0.94812,
   },
 ];
 /** @type {Array<VectorizeVector>} */
-// @ts-ignore
 const exampleVectors = exampleVectorMatches
   .filter((m) => typeof m !== "undefined")
-  .map((m) => m.vector);
+  .map(({ id, values, metadata }) => ({
+    id,
+    values: values ?? [],
+    metadata: metadata ?? {},
+  }));
 
 export default {
   /**
@@ -105,30 +99,33 @@ export default {
       } else if (request.method === "POST" && pathname.endsWith("/query")) {
         /** @type {VectorizeQueryOptions & {vector: number[]}} */
         const body = await request.json();
-        if (body?.returnVectors) {
-          return Response.json({
-            matches: exampleVectorMatches,
-            count: exampleVectorMatches.length,
+        const returnSet = exampleVectorMatches;
+        if (!body?.returnValues)
+          returnSet.forEach((v) => {
+            delete v.values;
+          });
+        if (!body?.returnMetadata)
+          returnSet.forEach((v) => {
+            delete v.metadata;
           });
-        }
         return Response.json({
-          matches: exampleVectorMatches.map(({ vectorId, score }) => ({
-            vectorId,
-            score,
-          })),
-          count: exampleVectorMatches.length,
+          matches: returnSet,
+          count: returnSet.length,
         });
       } else if (request.method === "POST" && pathname.endsWith("/insert")) {
         /** @type {{vectors: Array<VectorizeVector>}} */
         const data = await request.json();
-        if (data.vectors.find((v) => v.id == 'fail-with-test-error')) {
-          return Response.json({
-            code: 9999,
-            error: 'You asked me for this error',
-          }, {
-            status: 400
-          });
-        };
+        if (data.vectors.find((v) => v.id == "fail-with-test-error")) {
+          return Response.json(
+            {
+              code: 9999,
+              error: "You asked me for this error",
+            },
+            {
+              status: 400,
+            }
+          );
+        }
 
         return Response.json({
           ids: [

src/cloudflare/internal/vectorize-api.ts

@@ -1,6 +1,7 @@
 // Copyright (c) 2023 Cloudflare, Inc.
 // Licensed under the Apache 2.0 license found in the LICENSE file or at:
 //     https://opensource.org/licenses/Apache-2.0
+import * as flags from 'workerd:compatibility-flags'
 
 interface Fetcher {
   fetch: typeof fetch;
@@ -19,7 +20,7 @@ class VectorizeIndexImpl implements VectorizeIndex {
   public constructor(
     private readonly fetcher: Fetcher,
     private readonly indexId: string
-  ) {}
+  ) { }
 
   public async describe(): Promise<VectorizeIndexDetails> {
     const res = await this._send(
@@ -45,10 +46,16 @@ class VectorizeIndexImpl implements VectorizeIndex {
         body: JSON.stringify({
           ...options,
           vector: Array.isArray(vector) ? vector : Array.from(vector),
+          compat: {
+            queryMetadataOptional: !!flags.vectorizeQueryMetadataOptional,
+          },
         }),
         headers: {
           "content-type": "application/json",
           accept: "application/json",
+          "cf-vector-search-query-compat": JSON.stringify({
+            queryMetadataOptional: !!flags.vectorizeQueryMetadataOptional,
+          })
         },
       }
     );
@@ -196,10 +203,9 @@ async function toJson<T = unknown>(response: Response): Promise<T> {
     return JSON.parse(body) as T;
   } catch (e) {
     throw new Error(
-      `Failed to parse body as JSON, got: ${
-        body.length > maxBodyLogChars
-          ? `${body.slice(0, maxBodyLogChars)}…`
-          : body
+      `Failed to parse body as JSON, got: ${body.length > maxBodyLogChars
+        ? `${body.slice(0, maxBodyLogChars)}…`
+        : body
       }`
     );
   }

src/cloudflare/internal/vectorize.d.ts

@@ -36,7 +36,8 @@ type VectorizeDistanceMetric = "euclidean" | "cosine" | "dot-product";
 interface VectorizeQueryOptions {
   topK?: number;
   namespace?: string;
-  returnVectors?: boolean;
+  returnValues?: boolean;
+  returnMetadata?: boolean;
 }
 
 /**
@@ -77,20 +78,16 @@ interface VectorizeVector {
   values: VectorFloatArray | number[];
   /** The namespace this vector belongs to. */
   namespace?: string;
-  /** Metadata associated with the binding. Includes the values of the other fields and potentially additional details. */
+  /** Metadata associated with the vector. Includes the values of the other fields and potentially additional details. */
   metadata?: Record<string, VectorizeVectorMetadata>;
 }
 
 /**
  * Represents a matched vector for a query along with its score and (if specified) the matching vector information.
  */
-interface VectorizeMatch {
-  /** The ID for the vector. This can be user-defined, and must be unique. It should uniquely identify the object, and is best set based on the ID of what the vector represents. */
-  vectorId: string;
+type VectorizeMatch = Pick<Partial<VectorizeVector>, 'values'> & Omit<VectorizeVector, 'values'> & {
   /** The score or rank for similarity, when returned as a result */
   score: number;
-  /** Vector data for the match. Included only if the user specified they want it returned (via {@link VectorizeQueryOptions}). */
-  vector?: VectorizeVector;
 }
 
 /**

src/cloudflare/tsconfig.json

@@ -26,7 +26,8 @@
     ],
     "paths": {
       "cloudflare:*": ["./*"],
-      "cloudflare-internal:*": ["./internal/*"]
+      "cloudflare-internal:*": ["./internal/*"],
+      "workerd:compatibility-flags": ["./internal/compatibility-flags.d.ts"]
     }
   },
   "include": [

src/cloudflare/vectorize.ts

@@ -7,9 +7,11 @@
  * These can be supplied in place of configuring explicit dimensions.
  */
 export enum KnownModel {
-  "openapi-text-embedding-ada-002" = "openapi-text-embedding-ada-002",
-  "workers-ai/bge-small-en" = "workers-ai/bge-small-en",
-  "cohere/embed-multilingual-v2.0" = "cohere/embed-multilingual-v2.0",
+  'openai/text-embedding-ada-002' = 'openai/text-embedding-ada-002',
+  'cohere/embed-multilingual-v2.0' = 'cohere/embed-multilingual-v2.0',
+  '@cf/baai/bge-small-en-v1.5' = '@cf/baai/bge-small-en-v1.5',
+  '@cf/baai/bge-base-en-v1.5' = '@cf/baai/bge-base-en-v1.5',
+  '@cf/baai/bge-large-en-v1.5' = '@cf/baai/bge-large-en-v1.5',
 }
 
 /**

src/node/internal/compatibility-flags.d.ts

@@ -29,3 +29,4 @@ export const tcpSocketsSupport: boolean;
 export const specCompliantResponseRedirect: boolean;
 export const workerdExperimental: boolean;
 export const durableObjectGetExisting: boolean;
+export const vectorizeQueryMetadataOptional: boolean;

src/workerd/io/compatibility-date.capnp

@@ -352,4 +352,11 @@ struct CompatibilityFlags @0x8f8c1b68151b6cef {
   # In the WebCrypto API, the `publicExponent` field of the algorithm of RSA keys would previously
   # be an ArrayBuffer. Using this flag, publicExponent is a Uint8Array as mandated by the
   # specification.
+
+  vectorizeQueryMetadataOptional @37 :Bool
+      $compatEnableFlag("vectorize_query_metadata_optional")
+      $compatEnableDate("2023-11-08")
+      $compatDisableFlag("vectorize_query_original");
+  # Vectorize query option change to allow returning of metadata to be optional. Accompanying this:
+  # a return format change to move away from a nested object with the VectorizeVector.
 }