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# Query point groups

POST http://localhost:6333/collections/{collection_name}/points/query/groups
Content-Type: application/json

Universally query points and group results by a specified payload field. This endpoint covers all capabilities of search, recommend, discover, filters. But also enables hybrid and multi-stage queries.

Reference: https://api.qdrant.tech/api-reference/search/query-points-groups

## Authentication

- `api-key` header (required) — API Key authentication via header

## Servers

- `http://localhost:6333` (http, default)
- `https://localhost:6333` (https)

## Request

### Path parameters

- `collection_name` (string, required) — Name of the collection to query

### Query parameters

- `consistency` (ReadConsistency, optional) — Define read consistency guarantees for the operation
- `timeout` (integer, optional) — If set, overrides global timeout for this request. Unit is seconds.

### Body (application/json)

This endpoint expects a QueryGroupsRequest.

- `group_by` (string, required) — Payload field to group by, must be a string or number field. If the field contains more than 1 value, all values will be used for grouping. One point can be in multiple groups.
- `shard_key` (QueryGroupsRequestShardKey, optional)
- `prefetch` (QueryGroupsRequestPrefetch, optional) — Sub-requests to perform first. If present, the query will be performed on the results of the prefetch(es).
- `query` (QueryGroupsRequestQuery, optional) — Query to perform. If missing without prefetches, returns points ordered by their IDs.
- `using` (string, optional, nullable) — Define which vector name to use for querying. If missing, the default vector is used.
- `filter` (QueryGroupsRequestFilter, optional) — Filter conditions - return only those points that satisfy the specified conditions.
- `params` (QueryGroupsRequestParams, optional) — Search params for when there is no prefetch
- `score_threshold` (double, optional, nullable) — Return points with scores better than this threshold.
- `with_vector` (QueryGroupsRequestWithVector, optional) — Options for specifying which vectors to include into the response. Default is false.
- `with_payload` (QueryGroupsRequestWithPayload, optional) — Options for specifying which payload to include or not. Default is false.
- `lookup_from` (QueryGroupsRequestLookupFrom, optional) — The location to use for IDs lookup, if not specified - use the current collection and the 'using' vector Note: the other collection vectors should have the same vector size as the 'using' vector in the current collection
- `group_size` (integer, optional, nullable) — Maximum amount of points to return per group. Default is 3.
- `limit` (integer, optional, nullable) — Maximum amount of groups to return. Default is 10.
- `with_lookup` (QueryGroupsRequestWithLookup, optional) — Look for points in another collection using the group ids

## Response

### 200

successful operation

- `usage` (CollectionsCollectionNamePointsQueryGroupsPostResponsesContentApplicationJsonSchemaUsage, optional)
- `time` (double, optional) — Time spent to process this request
- `status` (string, optional)
- `result` (GroupsResult, optional)

## Types

### QueryGroupsRequestShardKey

### QueryGroupsRequestPrefetch

Sub-requests to perform first. If present, the query will be performed on the results of the prefetch(es).

### QueryGroupsRequestQuery

Query to perform. If missing without prefetches, returns points ordered by their IDs.

### QueryGroupsRequestFilter

Filter conditions - return only those points that satisfy the specified conditions.

### QueryGroupsRequestParams

Search params for when there is no prefetch

### QueryGroupsRequestWithVector

Options for specifying which vectors to include into the response. Default is false.

### QueryGroupsRequestWithPayload

Options for specifying which payload to include or not. Default is false.

### QueryGroupsRequestLookupFrom

The location to use for IDs lookup, if not specified - use the current collection and the 'using' vector Note: the other collection vectors should have the same vector size as the 'using' vector in the current collection

### QueryGroupsRequestWithLookup

Look for points in another collection using the group ids

### ReadConsistency

Read consistency parameter Defines how many replicas should be queried to get the result * `N` - send N random request and return points, which present on all of them * `majority` - send N/2+1 random request and return points, which present on all of them * `quorum` - send requests to all nodes and return points which present on majority of them * `all` - send requests to all nodes and return points which present on all of them Default value is `Factor(1)`

### CollectionsCollectionNamePointsQueryGroupsPostResponsesContentApplicationJsonSchemaUsage

### GroupsResult

- `groups` (list of PointGroup, required)

### Prefetch

- `prefetch` (PrefetchPrefetch, optional) — Sub-requests to perform first. If present, the query will be performed on the results of the prefetches.
- `query` (PrefetchQuery, optional) — Query to perform. If missing without prefetches, returns points ordered by their IDs.
- `using` (string, optional, nullable) — Define which vector name to use for querying. If missing, the default vector is used.
- `filter` (PrefetchFilter, optional) — Filter conditions - return only those points that satisfy the specified conditions.
- `params` (PrefetchParams, optional) — Search params for when there is no prefetch
- `score_threshold` (double, optional, nullable) — Return points with scores better than this threshold.
- `limit` (integer, optional, nullable) — Max number of points to return. Default is 10.
- `lookup_from` (PrefetchLookupFrom, optional) — The location to use for IDs lookup, if not specified - use the current collection and the 'using' vector Note: the other collection vectors should have the same vector size as the 'using' vector in the current collection

### Filter

- `should` (FilterShould, optional) — At least one of those conditions should match
- `min_should` (FilterMinShould, optional) — At least minimum amount of given conditions should match
- `must` (FilterMust, optional) — All conditions must match
- `must_not` (FilterMustNot, optional) — All conditions must NOT match

### SearchParams

Additional parameters of the search

- `hnsw_ef` (integer, optional, nullable) — Params relevant to HNSW index Size of the beam in a beam-search. Larger the value - more accurate the result, more time required for search.
- `exact` (boolean, optional, default: false) — Search without approximation. If set to true, search may run long but with exact results.
- `quantization` (SearchParamsQuantization, optional) — Quantization params
- `indexed_only` (boolean, optional, default: false) — If enabled, the engine will only perform search among indexed or small segments. Using this option prevents slow searches in case of delayed index, but does not guarantee that all uploaded vectors will be included in search results
- `acorn` (SearchParamsAcorn, optional) — ACORN search params

### LookupLocation

Defines a location to use for looking up the vector. Specifies collection and vector field name.

- `collection` (string, required) — Name of the collection used for lookup
- `vector` (string, optional, nullable) — Optional name of the vector field within the collection. If not provided, the default vector field will be used.
- `shard_key` (LookupLocationShardKey, optional) — Specify in which shards to look for the points, if not specified - look in all shards

### Usage

Usage of the hardware resources, spent to process the request

- `hardware` (UsageHardware, optional)
- `inference` (UsageInference, optional)

### PointGroup

- `hits` (list of ScoredPoint, required) — Scored points that have the same value of the group_by key
- `id` (GroupId, required) — Value of the group_by key, shared across all the hits in the group
- `lookup` (PointGroupLookup, optional) — Record that has been looked up using the group id

### PrefetchPrefetch

Sub-requests to perform first. If present, the query will be performed on the results of the prefetches.

### PrefetchQuery

Query to perform. If missing without prefetches, returns points ordered by their IDs.

### PrefetchFilter

Filter conditions - return only those points that satisfy the specified conditions.

### PrefetchParams

Search params for when there is no prefetch

### PrefetchLookupFrom

The location to use for IDs lookup, if not specified - use the current collection and the 'using' vector Note: the other collection vectors should have the same vector size as the 'using' vector in the current collection

### FilterShould

At least one of those conditions should match

### FilterMinShould

At least minimum amount of given conditions should match

### FilterMust

All conditions must match

### FilterMustNot

All conditions must NOT match

### SearchParamsQuantization

Quantization params

### SearchParamsAcorn

ACORN search params

### LookupLocationShardKey

Specify in which shards to look for the points, if not specified - look in all shards

### UsageHardware

### UsageInference

### ScoredPoint

Search result

- `id` (ExtendedPointId, required) — Type, used for specifying point ID in user interface
- `version` (uint64, required) — Point version
- `score` (double, required) — Points vector distance to the query vector
- `payload` (ScoredPointPayload, optional) — Payload - values assigned to the point
- `vector` (ScoredPointVector, optional) — Vector of the point
- `shard_key` (ScoredPointShardKey, optional) — Shard Key
- `order_value` (ScoredPointOrderValue, optional) — Order-by value

### GroupId

Value of the group_by key, shared across all the hits in the group

### PointGroupLookup

Record that has been looked up using the group id

### MinShould

- `conditions` (list of Condition, required)
- `min_count` (integer, required)

### QuantizationSearchParams

Additional parameters of the search

- `ignore` (boolean, optional, default: false) — If true, quantized vectors are ignored. Default is false.
- `rescore` (boolean, optional, nullable) — If true, use original vectors to re-score top-k results. Might require more time in case if original vectors are stored on disk. If not set, qdrant decides automatically apply rescoring or not.
- `oversampling` (double, optional, nullable) — Oversampling factor for quantization. Default is 1.0. Defines how many extra vectors should be pre-selected using quantized index, and then re-scored using original vectors. For example, if `oversampling` is 2.4 and `limit` is 100, then 240 vectors will be pre-selected using quantized index, and then top-100 will be returned after re-scoring.

### AcornSearchParams

ACORN-related search parameters

- `enable` (boolean, optional, default: false) — If true, then ACORN may be used for the HNSW search based on filters selectivity. Improves search recall for searches with multiple low-selectivity payload filters, at cost of performance.
- `max_selectivity` (double, optional, nullable) — Maximum selectivity of filters to enable ACORN. If estimated filters selectivity is higher than this value, ACORN will not be used. Selectivity is estimated as: `estimated number of points satisfying the filters / total number of points`. 0.0 for never, 1.0 for always. Default is 0.4.

### HardwareUsage

Usage of the hardware resources, spent to process the request

- `cpu` (integer, required)
- `payload_io_read` (integer, required)
- `payload_io_write` (integer, required)
- `payload_index_io_read` (integer, required)
- `payload_index_io_write` (integer, required)
- `vector_io_read` (integer, required)
- `vector_io_write` (integer, required)

### InferenceUsage

- `models` (map from string to ModelUsage, required)

### ExtendedPointId

Type, used for specifying point ID in user interface

### ScoredPointPayload

Payload - values assigned to the point

### ScoredPointVector

Vector of the point

### ScoredPointShardKey

Shard Key

### ScoredPointOrderValue

Order-by value

### Record

Point data

- `id` (ExtendedPointId, required) — Type, used for specifying point ID in user interface
- `payload` (RecordPayload, optional) — Payload - values assigned to the point
- `vector` (RecordVector, optional) — Vector of the point
- `shard_key` (RecordShardKey, optional) — Shard Key
- `order_value` (RecordOrderValue, optional)

### Condition

### ModelUsage

- `tokens` (uint64, required)

### RecordPayload

Payload - values assigned to the point

### RecordVector

Vector of the point

### RecordShardKey

Shard Key

### RecordOrderValue

### FieldCondition

All possible payload filtering conditions

- `key` (string, required) — Payload key
- `match` (FieldConditionMatch, optional) — Check if point has field with a given value
- `range` (FieldConditionRange, optional) — Check if points value lies in a given range
- `geo_bounding_box` (FieldConditionGeoBoundingBox, optional) — Check if points geolocation lies in a given area
- `geo_radius` (FieldConditionGeoRadius, optional) — Check if geo point is within a given radius
- `geo_polygon` (FieldConditionGeoPolygon, optional) — Check if geo point is within a given polygon
- `values_count` (FieldConditionValuesCount, optional) — Check number of values of the field
- `is_empty` (boolean, optional, nullable) — Check that the field is empty, alternative syntax for `is_empty: "field_name"`
- `is_null` (boolean, optional, nullable) — Check that the field is null, alternative syntax for `is_null: "field_name"`

### IsEmptyCondition

Select points with empty payload for a specified field

- `is_empty` (PayloadField, required) — Payload field

### IsNullCondition

Select points with null payload for a specified field

- `is_null` (PayloadField, required) — Payload field

### HasIdCondition

ID-based filtering condition

- `has_id` (list of ExtendedPointId, required)

### HasVectorCondition

Filter points which have specific vector assigned

- `has_vector` (string, required)

### NestedCondition

- `nested` (Nested, required) — Select points with payload for a specified nested field

### FieldConditionMatch

Check if point has field with a given value

### FieldConditionRange

Check if points value lies in a given range

### FieldConditionGeoBoundingBox

Check if points geolocation lies in a given area

### FieldConditionGeoRadius

Check if geo point is within a given radius

### FieldConditionGeoPolygon

Check if geo point is within a given polygon

### FieldConditionValuesCount

Check number of values of the field

### PayloadField

Payload field

- `key` (string, required) — Payload field name

### Nested

Select points with payload for a specified nested field

- `key` (string, required)
- `filter` (Filter, required)

### GeoBoundingBox

Geo filter request Matches coordinates inside the rectangle, described by coordinates of lop-left and bottom-right edges

- `top_left` (GeoPoint, required) — Geo point payload schema
- `bottom_right` (GeoPoint, required) — Geo point payload schema

### GeoRadius

Geo filter request Matches coordinates inside the circle of `radius` and center with coordinates `center`

- `center` (GeoPoint, required) — Geo point payload schema
- `radius` (double, required) — Radius of the area in meters

### GeoPolygon

Geo filter request Matches coordinates inside the polygon, defined by `exterior` and `interiors`

- `exterior` (GeoLineString, required) — Ordered sequence of GeoPoints representing the line
- `interiors` (list of GeoLineString, optional, nullable) — Interior lines (if present) bound holes within the surface each GeoLineString must consist of a minimum of 4 points, and the first and last points must be the same.

### ValuesCount

Values count filter request

- `lt` (integer, optional, nullable) — point.key.length() \< values\_count.lt
- `gt` (integer, optional, nullable) — point.key.length() > values_count.gt
- `gte` (integer, optional, nullable) — point.key.length() >= values_count.gte
- `lte` (integer, optional, nullable) — point.key.length() \<= values\_count.lte

### GeoPoint

Geo point payload schema

- `lon` (double, required)
- `lat` (double, required)

### GeoLineString

Ordered sequence of GeoPoints representing the line

- `points` (list of GeoPoint, required)

## Examples

**Request**

```json
{
  "group_by": "string"
}
```

**Response**

```json
{
  "usage": {
    "hardware": {
      "cpu": 1,
      "payload_io_read": 1,
      "payload_io_write": 1,
      "payload_index_io_read": 1,
      "payload_index_io_write": 1,
      "vector_io_read": 1,
      "vector_io_write": 1
    },
    "inference": {
      "models": {}
    }
  },
  "time": 0.002,
  "status": "ok",
  "result": {
    "groups": [
      {
        "hits": [
          {
            "id": 42,
            "version": 3,
            "score": 0.75,
            "payload": {},
            "vector": {},
            "shard_key": "region_1",
            "order_value": 42
          }
        ],
        "id": "string",
        "lookup": {
          "id": 42,
          "payload": {},
          "vector": {},
          "shard_key": "region_1",
          "order_value": 42
        }
      }
    ]
  }
}
```

**SDK Code**

```python
from qdrant_client import QdrantClient, models

client = QdrantClient(url="http://localhost:6333")

client.query_points_groups(
    collection_name="{collection_name}",
    query=[0.01, 0.45, 0.67],
    group_by="document_id",
    limit=10,
    group_size=5,
)
```

```java
import java.util.List;

import static io.qdrant.client.QueryFactory.nearest;

import io.qdrant.client.grpc.Points.QueryPointGroups;
import io.qdrant.client.grpc.Points.QueryPoints;


QdrantClient client =
    new QdrantClient(QdrantGrpcClient.newBuilder("localhost", 6334, false).build());

client
    .queryGroupsAsync(
        QueryPointGroups.newBuilder()
            .setCollectionName("{collection_name}")
            .setGroupBy("document_id")
            .setGroupSize(5)
            .setLimit(10)
            .setQuery(nearest(List.of(0.01f, 0.45f, 0.67f)))
            .build())
    .get();

```

```go
package client

import (
	"context"
	"fmt"

	"github.com/qdrant/go-client/qdrant"
)

func queryGroups() {
	client, err := qdrant.NewClient(&qdrant.Config{
		Host: "localhost",
		Port: 6334,
	})
	if err != nil {
		panic(err)
	}

	groupSize := uint64(5)
	results, err := client.QueryGroups(context.Background(), &qdrant.QueryPointGroups{
		CollectionName: "{collection_name}",
		Query:          qdrant.NewQuery(0.01, 0.45, 0.67),
		GroupBy:        "document_id",
		GroupSize:      &groupSize,
	})
	if err != nil {
		panic(err)
	}
	fmt.Println("Query results: ", results)
}

```

```typescript
import { QdrantClient } from "@qdrant/js-client-rest";

const client = new QdrantClient({ host: "localhost", port: 6333 });

client.queryGroups("{collection_name}", {
    query: [0.01, 0.45, 0.67],
    group_by: "document_id",
    limit: 10,
    group_size: 5,
});

```

```rust
use qdrant_client::Qdrant;
use qdrant_client::qdrant::{Query, QueryPointGroupsBuilder};

let client = Qdrant::from_url("http://localhost:6334").build()?;

client.query_groups(
    QueryPointGroupsBuilder::new("{collection_name}", "document_id")
        .query(Query::from(vec![0.01, 0.45, 0.67]))
        .limit(10u64)
        .group_size(5u64)
).await?;

```

```csharp
using Qdrant.Client;

var client = new QdrantClient("localhost", 6334);

await client.QueryGroupsAsync(
  collectionName: "{collection_name}",
  groupBy: "document_id",
  groupSize: 5,
  limit: 10,
  query: new float[] {
    0.01f, 0.45f, 0.67f
  }
);

```

```ruby
require 'uri'
require 'net/http'

url = URI("http://localhost:6333/collections/collection_name/points/query/groups")

http = Net::HTTP.new(url.host, url.port)

request = Net::HTTP::Post.new(url)
request["api-key"] = '<apiKey>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"group_by\": \"string\"\n}"

response = http.request(request)
puts response.read_body
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'http://localhost:6333/collections/collection_name/points/query/groups', [
  'body' => '{
  "group_by": "string"
}',
  'headers' => [
    'Content-Type' => 'application/json',
    'api-key' => '<apiKey>',
  ],
]);

echo $response->getBody();
```

```swift
import Foundation

let headers = [
  "api-key": "<apiKey>",
  "Content-Type": "application/json"
]
let parameters = ["group_by": "string"] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "http://localhost:6333/collections/collection_name/points/query/groups")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```