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Search with a vector

Search a namespace with a query vector or record ID and return the IDs of the most similar records, along with their similarity scores.

For guidance, examples, and limits, see Search.

Python
# pip install "pinecone[grpc]"
from pinecone.grpc import PineconeGRPC as Pinecone

pc = Pinecone(api_key="YOUR_API_KEY")
index = pc.Index("docs-example")

index.query(
    namespace="example-namespace",
    vector=[0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3],
    filter={
        "genre": {"$eq": "documentary"}
    },
    top_k=3,
    include_values=True
)
JavaScript
// npm install @pinecone-database/pinecone
import { Pinecone } from '@pinecone-database/pinecone'

const pc = new Pinecone({ apiKey: 'YOUR_API_KEY' })
const index = pc.index("docs-example")

const queryResponse = await index.namespace('example-namespace').query({
    vector: [0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3],
    filter: {
      'genre': {'$eq': 'documentary'}
    },
    topK: 3,
    includeValues: true
});
Java
import com.google.protobuf.Struct;
import com.google.protobuf.Value;
import io.pinecone.clients.Index;
import io.pinecone.clients.Pinecone;
import io.pinecone.unsigned_indices_model.QueryResponseWithUnsignedIndices;

import java.util.Arrays;
import java.util.List;

public class QueryByMetadataExample {
    public static void main(String[] args) {
        Pinecone pc = new Pinecone.Builder("YOUR_API_KEY").build();
        Index index = pc.getIndexConnection("docs-example");
        List<Float> query = Arrays.asList(0.3f, 0.3f, 0.3f, 0.3f, 0.3f, 0.3f, 0.3f, 0.3f);
        Struct filter = Struct.newBuilder()
                .putFields("genre", Value.newBuilder()
                        .setStructValue(Struct.newBuilder()
                                .putFields("$eq", Value.newBuilder()
                                        .setStringValue("documentary")
                                        .build()))
                        .build())
                .build();

        QueryResponseWithUnsignedIndices queryResponse = index.query(3, query, null, null, null, "example-namespace", filter, false, true);

        System.out.println(queryResponse);
    }
}
Go
package main

import (
    "context"
    "encoding/json"
    "fmt"
    "log"

    "github.com/pinecone-io/go-pinecone/v2/pinecone"
    "google.golang.org/protobuf/types/known/structpb"
)

func prettifyStruct(obj interface{}) string {
	bytes, _ := json.MarshalIndent(obj, "", "  ")
	return string(bytes)
}

func main() {
    ctx := context.Background()

    pc, err := pinecone.NewClient(pinecone.NewClientParams{
        ApiKey: "YOUR_API_KEY",
    })
    if err != nil {
        log.Fatalf("Failed to create Client: %v", err)
    }

    idx, err := pc.DescribeIndex(ctx, "docs-example")
    if err != nil {
        log.Fatalf("Failed to describe index \"%v\": %v", idx.Name, err)
    }

    idxConnection, err := pc.Index(pinecone.NewIndexConnParams{Host: idx.Host, Namespace: "example-namespace"})
    if err != nil {
        log.Fatalf("Failed to create IndexConnection for Host %v: %v", idx.Host, err)
	}

    queryVector := []float32{0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3}

    metadataMap := map[string]interface{}{
        "genre": map[string]interface{}{
            "$eq": "documentary",
        },
    }

    metadataFilter, err := structpb.NewStruct(metadataMap)
    if err != nil {
        log.Fatalf("Failed to create metadata map: %v", err)
    }

    res, err := idxConnection.QueryByVectorValues(ctx, &pinecone.QueryByVectorValuesRequest{
        Vector:         queryVector,
        TopK:           3,
        MetadataFilter: metadataFilter,
        IncludeValues:  true,
    })
    if err != nil {
        log.Fatalf("Error encountered when querying by vector: %v", err)
    } else {
        fmt.Printf(prettifyStruct(res))
    }
}
C#
using Pinecone;

var pinecone = new PineconeClient("YOUR_API_KEY");

var index = pinecone.Index("docs-example");

var queryResponse = await index.QueryAsync(new QueryRequest {
    Vector = new[] { 0.3f, 0.3f, 0.3f, 0.3f, 0.3f, 0.3f, 0.3f, 0.3f },
    Namespace = "example-namespace",
    TopK = 3,
    Filter = new Metadata
    {
        ["genre"] =
            new Metadata
            {
                ["$eq"] = "documentary",
            }
    }
});

Console.WriteLine(queryResponse);
curl
PINECONE_API_KEY="YOUR_API_KEY"
INDEX_HOST="INDEX_HOST"

curl "https://$INDEX_HOST/query" \
  -H "Api-Key: $PINECONE_API_KEY" \
  -H "Content-Type: application/json" \
  -H "X-Pinecone-Api-Version: 2024-07" \
  -d '{
    "vector": [0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3],
    "filter": {"genre": {"$eq": "documentary"}},
    "topK": 3,
    "includeValues": true
  }'
curl
{
  "matches":[
    {
      "id": "vec3",
      "score": 0,
      "values": [0.3,0.3,0.3,0.3,0.3,0.3,0.3,0.3]
    },
    {
      "id": "vec2",
      "score": 0.0800000429,
      "values": [0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2]
    },
    {
      "id": "vec4",
      "score": 0.0799999237,
      "values": [0.4, 0.4, 0.4, 0.4, 0.4, 0.4, 0.4, 0.4]
    }
  ],
  "namespace": "example-namespace",
  "usage": {"read_units": 6}
}

POST /query

  • namespace (body, string) — The namespace to query.
  • topK (body, integer, required) — The number of results to return for each query.
  • filter (body, object) — The filter to apply. You can use vector metadata to limit your search. See Understanding metadata.
  • includeValues (body, boolean) — Indicates whether vector values are included in the response. For on-demand indexes, setting this to true may increase latency, especially with higher topK values, because vector values are retrieved from object storage. Unless you need vector values, set this to false for better performance.
  • includeMetadata (body, boolean) — Indicates whether metadata is included in the response as well as the ids.
  • queries (body, object[]) — DEPRECATED. Use vector or id instead.
  • vector (body, number[]) — The query vector. This should be the same length as the dimension of the index being queried. Each request can contain either the id or vector parameter.
  • sparseVector (body, object) — Vector sparse data. Represented as a list of indices and a list of corresponded values, which must be with the same length.
  • id (body, string) — The unique ID of the vector to be used as a query vector. Each request can contain either the vector or id parameter.
  • 200 — A successful response.
  • 400 — Bad request. The request body included invalid request parameters.
  • default — An unexpected error response.
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