Filters

Filters let you include, or exclude, particular objects from your result set based on provided conditions.
For a list of filter operators, see the API reference page.

Filter with one condition

Add a filter to your query, to limit the result set.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter

jeopardy = client.collections.use("JeopardyQuestion")
response = jeopardy.query.fetch_objects(
    filters=Filter.by_property("round").equal("Double Jeopardy!"),
    limit=3
)

for o in response.objects:
    print(o.properties)

const jeopardy = client.collections.use('JeopardyQuestion');

const result = await jeopardy.query.fetchObjects({
  filters: jeopardy.filter.byProperty('round').equal('Double Jeopardy!'),
  limit: 3,
})

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(graphql.Field{Name: "question"}, graphql.Field{Name: "answer"}, graphql.Field{Name: "round"}).
  WithWhere(filters.Where().
    WithPath([]string{"round"}).
    WithOperator(filters.Equal).
    WithValueString("Double Jeopardy!")).
  WithLimit(3).
  Do(ctx)

CollectionHandle<Map<String, Object>> jeopardy =
    client.collections.use("JeopardyQuestion");
var response = jeopardy.query.fetchObjects(q -> q
    .filters(Filter.property("round").eq("Double Jeopardy!"))
    .limit(3));

for (var o : response.objects()) {
  System.out.println(o.properties());
}

var jeopardy = client.Collections.Use("JeopardyQuestion");
var response = await jeopardy.Query.FetchObjects(
    filters: Filter.Property("round").IsEqual("Double Jeopardy!"),
    limit: 3
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties));
}

{
  Get {
    JeopardyQuestion(
      limit: 3
      where: {
        path: ["round"],
        operator: Equal,
        valueText: "Double Jeopardy!"
      }
    ) {
      question
      answer
      round
    }
  }
}

Example response

The output is like this:

{
  "data": {
    "Get": {
      "JeopardyQuestion": [
        {
          "answer": "garage",
          "question": "This French word originally meant \"a place where one docks\" a boat, not a car",
          "round": "Double Jeopardy!"
        },
        {
          "answer": "Mexico",
          "question": "The Colorado River provides much of the border between this country's Baja California Norte & Sonora",
          "round": "Double Jeopardy!"
        },
        {
          "answer": "Amy Carter",
          "question": "On September 1, 1996 this former first daughter married Jim Wentzel at the Pond House near Plains",
          "round": "Double Jeopardy!"
        }
      ]
    }
  }
}

Filter with multiple conditions

To filter with two or more conditions, use And, Or and Not to define the relationship between the conditions.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

The v4 Python client API provides filtering by any_of, or all_of, as well as using & or | operators.

• Use any_of or all_of for filtering by any, or all of a list of provided filters.
• Use & or | for filtering by pairs of provided filters.

Filter with & or |

from weaviate.classes.query import Filter

jeopardy = client.collections.use("JeopardyQuestion")
response = jeopardy.query.fetch_objects(
    # Use & as AND
    #     | as OR
    filters=(
        Filter.by_property("round").equal("Double Jeopardy!") &
        Filter.by_property("points").less_than(600) &
        Filter.not_(Filter.by_property("answer").equal("Yucatan"))
    ),
    limit=3
)

for o in response.objects:
    print(o.properties)

Filter with any of

from weaviate.classes.query import Filter

jeopardy = client.collections.use("JeopardyQuestion")
response = jeopardy.query.fetch_objects(
    filters=(
        Filter.any_of([  # Combines the below with `|`
            Filter.by_property("points").greater_or_equal(700),
            Filter.by_property("points").less_than(500),
            Filter.by_property("round").equal("Double Jeopardy!"),
        ])
    ),
    limit=5
)

for o in response.objects:
    print(o.properties)

Filter with all of

from weaviate.classes.query import Filter

jeopardy = client.collections.use("JeopardyQuestion")
response = jeopardy.query.fetch_objects(
    filters=(
        Filter.all_of([  # Combines the below with `&`
            Filter.by_property("points").greater_than(300),
            Filter.by_property("points").less_than(700),
            Filter.by_property("round").equal("Double Jeopardy!"),
        ])
    ),
    limit=5
)

for o in response.objects:
    print(o.properties)

Use Filters.and and Filters.or methods to combine filters in the JS/TS v3 API. Filters.not is used to negate a filter using the logical NOT operator.

These methods take variadic arguments (e.g. Filters.and(f1, f2, f3, ...)). To pass an array (e.g. fs) as an argument, provide it like so: Filters.and(...fs) which will spread the array into its elements.

import weaviate, { Filters } from 'weaviate-client';

const jeopardy = client.collections.use('JeopardyQuestion');

const result = await jeopardy.query.fetchObjects({
  filters: Filters.and(
    jeopardy.filter.byProperty('round').equal('Double Jeopardy!'),
    jeopardy.filter.byProperty('points').lessThan(600),
    Filters.not(jeopardy.filter.byProperty("answer").equal("Yucatan"))
  ),
  limit: 3,
 })

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(
    graphql.Field{Name: "question"},
    graphql.Field{Name: "answer"},
    graphql.Field{Name: "round"},
    graphql.Field{Name: "points"},
  ).
  WithWhere(filters.Where().
    WithOperator(filters.And).
    WithOperands([]*filters.WhereBuilder{
      filters.Where().WithPath([]string{"round"}).WithOperator(filters.Equal).WithValueString("Double Jeopardy!"),
      filters.Where().WithPath([]string{"points"}).WithOperator(filters.LessThan).WithValueInt(600),
      // Add a NOT operator to exclude a specific answer
      filters.Where().
        WithOperator(filters.Not).
        WithOperands([]*filters.WhereBuilder{
          filters.Where().WithPath([]string{"answer"}).WithOperator(filters.Equal).WithValueString("Yucatan"),
        }),
    }),
  ).
  WithLimit(3).
  Do(ctx)

CollectionHandle<Map<String, Object>> jeopardy =
    client.collections.use("JeopardyQuestion");
var response = jeopardy.query.fetchObjects(q -> q
    // Combine filters with Filter.and(), Filter.or(), and Filter.not()
    .filters(Filter.and(Filter.property("round").eq("Double Jeopardy!"),
        Filter.property("points").lt(600),
        Filter.not(Filter.property("answer").eq("Yucatan"))))
    .limit(3));

for (var o : response.objects()) {
  System.out.println(o.properties());
}

var jeopardy = client.Collections.Use("JeopardyQuestion");
var response = await jeopardy.Query.FetchObjects(
    // Combine filters with Filter.And(), Filter.Or(), and Filter.Not()
    filters: Filter.AllOf(
        Filter.Property("round").IsEqual("Double Jeopardy!"),
        Filter.Property("points").IsLessThan(600),
        Filter.Not(Filter.Property("answer").IsEqual("Yucatan"))
    ),
    limit: 3
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties));
}

{
  Get {
    JeopardyQuestion(
      limit: 3
      where: {
        operator: And,
        operands: [
          {
            path: ["round"],
            operator: Equal,
            valueText: "Double Jeopardy!",
          },
          {
            path: ["points"],
            operator: LessThan,
            valueInt: 600,
          },
        ]

      }
    ) {
      question
      answer
      round
      points
    }
  }
}

Example response

The output is like this:

{
  "data": {
    "Get": {
      "JeopardyQuestion": [
        {
          "answer": "Mexico",
          "points": 200,
          "question": "The Colorado River provides much of the border between this country's Baja California Norte & Sonora",
          "round": "Double Jeopardy!"
        },
        {
          "answer": "Amy Carter",
          "points": 200,
          "question": "On September 1, 1996 this former first daughter married Jim Wentzel at the Pond House near Plains",
          "round": "Double Jeopardy!"
        },
        {
          "answer": "Greek",
          "points": 400,
          "question": "Athenians speak the Attic dialect of this language",
          "round": "Double Jeopardy!"
        }
      ]
    }
  }
}

Combine filters with And or Or

Group and nest filter conditions with And and Or operators to express compound logic.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter

jeopardy = client.collections.use("JeopardyQuestion")
response = jeopardy.query.fetch_objects(
    filters=Filter.by_property("answer").like("*bird*") &
            (Filter.by_property("points").greater_than(700) | Filter.by_property("points").less_than(300)),
    limit=3
)

for o in response.objects:
    print(o.properties)

import weaviate, { Filters } from 'weaviate-client';

const jeopardy = client.collections.use('JeopardyQuestion');

const result = await jeopardy.query.fetchObjects({
  filters: Filters.and(
    jeopardy.filter.byProperty('answer').like('*bird*'),

    Filters.or(
      jeopardy.filter.byProperty('points').greaterThan(700),
      jeopardy.filter.byProperty('points').lessThan(300)
    )
  ),
  limit: 3
})

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

operands := []*filters.WhereBuilder{
  filters.Where().WithPath([]string{"points"}).WithOperator(filters.GreaterThan).WithValueInt(300),
  filters.Where().WithPath([]string{"points"}).WithOperator(filters.LessThan).WithValueInt(700),
}

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(graphql.Field{Name: "question"}, graphql.Field{Name: "answer"}, graphql.Field{Name: "round"}, graphql.Field{Name: "points"}).
  WithWhere(filters.Where().
    WithOperator(filters.And).
    WithOperands(operands)).
  WithLimit(3).
  Do(ctx)

CollectionHandle<Map<String, Object>> jeopardy =
    client.collections.use("JeopardyQuestion");
var response = jeopardy.query.fetchObjects(q -> q
    .filters(Filter.and(Filter.property("answer").like("*bird*"),
        Filter.or(Filter.property("points").gt(700),
            Filter.property("points").lt(300))))
    .limit(3));

for (var o : response.objects()) {
  System.out.println(o.properties());
}

var jeopardy = client.Collections.Use("JeopardyQuestion");
var response = await jeopardy.Query.FetchObjects(
    filters: Filter.AllOf(
        Filter.Property("answer").IsLike("*bird*"),
        Filter.AnyOf(
            Filter.Property("points").IsGreaterThan(700),
            Filter.Property("points").IsLessThan(300)
        )
    ),
    limit: 3
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties));
}

{
  Get {
    JeopardyQuestion(
      limit: 3
      where: {
        operator: And,
        operands: [
          {
            path: ["answer"],
            operator: Like,
            valueText: "*bird*",
          },
          {
            operator: Or,
            operands: [
                {
                    path: ["points"],
                    operator: GreaterThan,
                    valueInt: 700,
                },
                {
                    path: ["points"],
                    operator: LessThan,
                    valueInt: 300,
                },
            ]
          }
        ]

      }
    ) {
      question
      answer
      round
      points
    }
  }
}

Example response

The output is like this:

{
  "data": {
    "Get": {
      "JeopardyQuestion": [
        {
          "answer": "The Firebird",
          "points": 1000,
          "question": "This title character has the face & arms of a woman & a body of feathers that tapers off in flames",
          "round": "Double Jeopardy!"
        },
        {
          "answer": "the Firebird",
          "points": 800,
          "question": "This Stravinsky character first played by Tamara Karsavina has the face & arms of a girl & a body of feathers",
          "round": "Double Jeopardy!"
        }
      ]
    }
  }
}

Additional information

To create a nested filter, follow these steps.

• Set the outer operator equal to And or Or.
• Add operands.
• Inside an operand expression, set operator equal to And or Or to add the nested group.
• Add operands to the nested group as needed.

Combine filters and search operators

Filters work with search operators like nearXXX, hybrid, and bm25.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter

jeopardy = client.collections.use("JeopardyQuestion")
response = jeopardy.query.near_text(
    query="fashion icons",
    filters=Filter.by_property("points").greater_than(200),
    limit=3
)

for o in response.objects:
    print(o.properties)

const jeopardy = client.collections.use('JeopardyQuestion');

const result = await jeopardy.query.nearText('fashion icons', {
  filters: jeopardy.filter.byProperty('points').greaterThan(200),
  limit: 3,
})

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(graphql.Field{Name: "question"}, graphql.Field{Name: "answer"}, graphql.Field{Name: "round"}, graphql.Field{Name: "points"}).
  WithWhere(filters.Where().
    WithPath([]string{"points"}).
    WithOperator(filters.GreaterThan).
    WithValueInt(200)).
  WithNearText(client.GraphQL().NearTextArgBuilder().
    WithConcepts([]string{"fashion icons"})).
  WithLimit(3).
  Do(ctx)

CollectionHandle<Map<String, Object>> jeopardy =
    client.collections.use("JeopardyQuestion");
var response = jeopardy.query.nearText("fashion icons", q -> q
    .filters(Filter.property("points").gt(200))
    .limit(3));

for (var o : response.objects()) {
  System.out.println(o.properties());
}

var jeopardy = client.Collections.Use("JeopardyQuestion");
var response = await jeopardy.Query.NearText(
    "fashion icons",
    filters: Filter.Property("points").IsGreaterThan(200),
    limit: 3
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties));
}

{
  Get {
    JeopardyQuestion(
      limit: 3
      where: {
        path: ["points"],
        operator: GreaterThan,
        valueInt: 200
      }
      nearText: {
        concepts: ["fashion icons"]
    }
    ) {
      question
      answer
      round
      points
    }
  }
}

Example response

The output is like this:

{
  "data": {
    "Get": {
      "JeopardyQuestion": [
        {
          "answer": "fashion designers",
          "points": 400,
          "question": "Ted Lapidus, Guy Laroche, Christian Lacroix",
          "round": "Jeopardy!"
        },
        {
          "answer": "Dapper Flapper",
          "points": 400,
          "question": "A stylish young woman of the 1920s",
          "round": "Double Jeopardy!"
        },
        {
          "answer": "Women's Wear Daily",
          "points": 800,
          "question": "This daily chronicler of the fashion industry launched \"W\", a bi-weekly, in 1972",
          "round": "Jeopardy!"
        }
      ]
    }
  }
}

ContainsAny Filter

The ContainsAny operator works on text properties and take an array of values as input. It will match objects where the property contains any (i.e. one or more) of the values in the array.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter

jeopardy = client.collections.use("JeopardyQuestion")

token_list = ["australia", "india"]
response = jeopardy.query.fetch_objects(
    # Find objects where the `answer` property contains any of the strings in `token_list`
    filters=Filter.by_property("answer").contains_any(token_list),
    limit=3
)

for o in response.objects:
    print(o.properties)

const jeopardy = client.collections.use('JeopardyQuestion');

const tokenList = ['australia', 'india']

const result = await jeopardy.query.fetchObjects({
  // Find objects where the `answer` property contains any of the strings in `tokenList`
  filters: jeopardy.filter.byProperty('answer').containsAny(tokenList),
  limit: 3,
})

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

tokenList := []string{"australia", "india"}

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(graphql.Field{Name: "question"}, graphql.Field{Name: "answer"}, graphql.Field{Name: "round"}, graphql.Field{Name: "points"}).
  WithWhere(filters.Where().
    WithPath([]string{"answer"}).
    WithOperator(filters.ContainsAny).
    WithValueText(tokenList...)).
  WithLimit(3).
  Do(ctx)

CollectionHandle<Map<String, Object>> jeopardy =
    client.collections.use("JeopardyQuestion");

String[] tokens = new String[] {"australia", "india"};
var response = jeopardy.query.fetchObjects(q -> q
    // Find objects where the `answer` property contains any of the strings in `token_list`
    .filters(Filter.property("answer").containsAny(tokens))
    .limit(3));

for (var o : response.objects()) {
  System.out.println(o.properties());
}

var jeopardy = client.Collections.Use("JeopardyQuestion");

string[] tokens = ["australia", "india"];

var response = await jeopardy.Query.FetchObjects(
    // Find objects where the `answer` property contains any of the strings in `tokens`
    filters: Filter.Property("answer").ContainsAny(tokens),
    limit: 3
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties));
}

{
  Get {
    JeopardyQuestion(
      limit: 3
      where: {
        path: ["answer"],
        operator: ContainsAny,
        valueText: ["australia", "india"]
      }
    ) {
      question
      answer
      round
      points
    }
  }
}

Example response

The output is like this:

{
  "data": {
    "Get": {
      "JeopardyQuestion": [
        {
          "answer": "India",
          "points": 100,
          "question": "Country that is home to Parsis & Sikhs",
          "round": "Jeopardy!"
        },
        {
          "answer": "Australia",
          "points": 400,
          "question": "The redundant-sounding Townsville, in this country's Queensland state, was named for Robert Towns",
          "round": "Double Jeopardy!"
        },
        {
          "answer": "Australia",
          "points": 100,
          "question": "Broken Hill, this country's largest company, took its name from a small town in New South Wales",
          "round": "Jeopardy!"
        }
      ]
    }
  }
}

ContainsAll Filter

The ContainsAll operator works on text properties and take an array of values as input. It will match objects where the property contains all of the values in the array.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter

jeopardy = client.collections.use("JeopardyQuestion")

token_list = ["blue", "red"]

response = jeopardy.query.fetch_objects(
    # Find objects where the `question` property contains all of the strings in `token_list`
    filters=Filter.by_property("question").contains_all(token_list),
    limit=3
)

for o in response.objects:
    print(o.properties)

const jeopardy = client.collections.use('JeopardyQuestion');

const tokenList = ['australia', 'india']

const result = await jeopardy.query.fetchObjects({
  // Find objects where the `question` property contains all of the strings in `tokenList`
  filters: jeopardy.filter.byProperty('question').containsAll(tokenList),
  limit: 3,
})

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

tokenList := []string{"blue", "red"}

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(graphql.Field{Name: "question"}, graphql.Field{Name: "answer"}, graphql.Field{Name: "round"}, graphql.Field{Name: "points"}).
  WithWhere(filters.Where().
    WithPath([]string{"question"}).
    WithOperator(filters.ContainsAll).
    WithValueText(tokenList...)).
  WithLimit(3).
  Do(ctx)

CollectionHandle<Map<String, Object>> jeopardy =
    client.collections.use("JeopardyQuestion");

String[] tokens = new String[] {"blue", "red"};


var response = jeopardy.query.fetchObjects(q -> q
    // Find objects where the `question` property contains all of the strings in `tokens`
    .filters(Filter.property("question").containsAll(tokens))
    .limit(3));

for (var o : response.objects()) {
  System.out.println(o.properties());
}

var jeopardy = client.Collections.Use("JeopardyQuestion");

string[] tokens = ["blue", "red"];

var response = await jeopardy.Query.FetchObjects(
    // Find objects where the `question` property contains all of the strings in `tokens`
    filters: Filter.Property("question").ContainsAll(tokens),
    limit: 3
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties));
}

{
  Get {
    JeopardyQuestion(
      limit: 3
      where: {
        path: ["question"],
        operator: ContainsAll,
        valueText: ["blue", "red"]
      }
    ) {
      question
      answer
      round
      points
    }
  }
}

Example response

The output is like this:

{
  "data": {
    "Get": {
      "JeopardyQuestion": [
        {
          "answer": "James Patterson",
          "points": 1000,
          "question": "His Alex Cross thrillers include \"Roses are Red\" & \"Violets are Blue\"",
          "round": "Jeopardy!"
        },
        {
          "answer": "a chevron",
          "points": 800,
          "question": "Chevron's red & blue logo is this heraldic shape, meant to convey rank & service",
          "round": "Jeopardy!"
        },
        {
          "answer": "litmus",
          "points": 400,
          "question": "Vegetable dye that turns red in acid solutions & blue in alkaline solutions",
          "round": "Double Jeopardy!"
        }
      ]
    }
  }
}

ContainsNone Filter

The ContainsNone operator works on text properties and take an array of values as input. It will match objects where the property contains none of the values in the array.

PythonJavaScript/TypeScriptGoJavaC#

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter

jeopardy = client.collections.get("JeopardyQuestion")

token_list = ["bird", "animal"]

response = jeopardy.query.fetch_objects(
    # Find objects where the `question` property contains none of the strings in `token_list`
    filters=Filter.by_property("question").contains_none(token_list),
    limit=3
)

for o in response.objects:
    print(o.properties)

import weaviate, { Filters } from 'weaviate-client';

const jeopardy = client.collections.use('JeopardyQuestion');


const tokenList = ["bird", "animal"]

const response = await jeopardy.query.fetchObjects({
    // Find objects where the `question` property contains none of the strings in `token_list`
    filters: jeopardy.filter.byProperty("question").containsNone(tokenList),
    limit: 3
})

for (const object of response.objects) {
    console.log(object.properties)
}

tokenList := []string{"bird", "animal"}

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(
    graphql.Field{Name: "question"},
    graphql.Field{Name: "answer"},
    graphql.Field{
      Name: "hasCategory",
      Fields: []graphql.Field{
        {Name: "... on JeopardyCategory", Fields: []graphql.Field{{Name: "title"}}},
      },
    },
  ).
  WithWhere(filters.Where().
    WithPath([]string{"answer"}).
    WithOperator(filters.ContainsNone).
    WithValueText(tokenList...)).
  WithLimit(3).
  Do(ctx)

CollectionHandle<Map<String, Object>> jeopardy =
    client.collections.use("JeopardyQuestion");

String[] tokens = new String[] {"bird", "animal"};

var response = jeopardy.query.fetchObjects(q -> q
    // Find objects where the `question` property contains none of the strings in `token_list`
    .filters(Filter.property("question").containsNone(tokens))
    .limit(3));

for (var o : response.objects()) {
  System.out.println(o.properties());
}

var jeopardy = client.Collections.Use("JeopardyQuestion");

string[] tokens = ["bird", "animal"];

var response = await jeopardy.Query.FetchObjects(
    // Find objects where the `question` property contains none of the strings in `tokens`
    filters: Filter.Property("question").ContainsNone(tokens),
    limit: 3
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties));
}

Example response

The output is like this:

{
  "data": {
    "Get": {
      "JeopardyQuestion": [
        {
          "answer": "Frank Lloyd Wright",
          "hasCategory": [
            {
              "title": "PEOPLE"
            }
          ],
          "question": "In 1939 this famous architect polished off his Johnson Wax Building in Racine, Wisconsin"
        },
        {
          "answer": "a luffa",
          "hasCategory": [
            {
              "title": "FOOD"
            }
          ],
          "question": "When it's young & tender, this gourd used in the bathtub can be eaten like a squash"
        },
        {
          "answer": "a snail",
          "hasCategory": [
            {
              "title": "SCIENCE & NATURE"
            }
          ],
          "question": "Like an escargot, the abalone is an edible one of these gastropods"
        }
      ]
    }
  }
}

ContainsAny, ContainsAll and ContainsNone with batch delete

If you want to do a batch delete, see Delete objects.

Filter text on partial matches

If the object property is a text, or text-like data type such as object ID, use Like to filter on partial text matches.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter

jeopardy = client.collections.use("JeopardyQuestion")
response = jeopardy.query.fetch_objects(
    filters=Filter.by_property("answer").like("*ala*"),
    limit=3
)

for o in response.objects:
    print(o.properties)

const jeopardy = client.collections.use('JeopardyQuestion');

const result = await jeopardy.query.fetchObjects({
  filters: jeopardy.filter.byProperty('answer').like('*inter*'),
  limit: 3,
})

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(graphql.Field{Name: "question"}, graphql.Field{Name: "answer"}, graphql.Field{Name: "round"}).
  WithWhere(filters.Where().
    WithPath([]string{"answer"}).
    WithOperator(filters.Like).
    WithValueText("*inter*")).
  WithLimit(3).
  Do(ctx)

CollectionHandle<Map<String, Object>> jeopardy =
    client.collections.use("JeopardyQuestion");
var response = jeopardy.query.fetchObjects(q -> q
    .filters(Filter.property("answer").like("*ala*"))
    .limit(3));

for (var o : response.objects()) {
  System.out.println(o.properties());
}

var jeopardy = client.Collections.Use("JeopardyQuestion");
var response = await jeopardy.Query.FetchObjects(
    filters: Filter.Property("answer").IsLike("*ala*"),
    limit: 3
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties));
}

{
  Get {
    JeopardyQuestion(
      limit: 3
      where: {
        path: ["answer"],
        operator: Like,
        valueText: "*inter*"
      }
    ) {
      question
      answer
      round
    }
  }
}

Example response

The output is like this:

{
  "data": {
    "Get": {
      "JeopardyQuestion": [
        {
          "answer": "interglacial",
          "question": "This term refers to the warm periods within ice ages; we're in one of those periods now",
          "round": "Jeopardy!"
        },
        {
          "answer": "the Interior",
          "question": "In 1849, Thomas Ewing, \"The Logician of the West\", became the USA's first Secy. of this Cabinet Dept.",
          "round": "Jeopardy!"
        },
        {
          "answer": "Interlaken, Switzerland",
          "question": "You can view the Jungfrau Peak from the main street of this town between the Brienz & Thun Lakes",
          "round": "Final Jeopardy!"
        }
      ]
    }
  }
}

Additional information

The * wildcard operator matches zero or more characters. The ? operator matches exactly one character.

Currently, the Like filter is not able to match wildcard characters (? and *) as literal characters (read more).

Filter using cross-references

Cross-references and query performance

Queries involving cross-references can be slower than queries that do not involve cross-references, especially at scale such as for multiple objects or complex queries.

At the first instance, we strongly encourage you to consider whether you can avoid using cross-references in your data schema. As a scalable AI database, Weaviate is well-placed to perform complex queries with vector, keyword and hybrid searches involving filters. You may benefit from rethinking your data schema to avoid cross-references where possible.

For example, instead of creating separate "Author" and "Book" collections with cross-references, consider embedding author information directly in Book objects and using searches and filters to find books by author characteristics.

To filter on properties from a cross-referenced object, add the collection name to the filter.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter, QueryReference

jeopardy = client.collections.use("JeopardyQuestion")
response = jeopardy.query.fetch_objects(
    filters=Filter.by_ref(link_on="hasCategory").by_property("title").like("*Sport*"),
    return_references=QueryReference(link_on="hasCategory", return_properties=["title"]),
    limit=3
)

for o in response.objects:
    print(o.properties)
    print(o.references["hasCategory"].objects[0].properties["title"])

const jeopardy = client.collections.use('JeopardyQuestion');

const result = await jeopardy.query.fetchObjects({
  filters: jeopardy.filter.byRef('hasCategory').byProperty('title').like('*Sport*'),
  returnReferences: [{
    linkOn: 'hasCategory',
    returnProperties: ['title'],
  }],
  limit: 3
})

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(
    graphql.Field{Name: "question"},
    graphql.Field{Name: "answer"},
    graphql.Field{Name: "round"},
    graphql.Field{
      Name: "hasCategory",
      Fields: []graphql.Field{
        {Name: "... on JeopardyCategory", Fields: []graphql.Field{{Name: "title"}}},
      },
    },
  ).
  WithWhere(filters.Where().
    WithPath([]string{"hasCategory", "JeopardyCategory", "title"}).
    WithOperator(filters.Like).
    WithValueText("*Sport*")).
  WithLimit(3).
  Do(ctx)

  // Coming soon

{
  Get {
    JeopardyQuestion(
      limit: 3
      where: {
        path: ["hasCategory", "JeopardyCategory", "title"],
        operator: Like,
        valueText: "*Sport*"
      }
    ) {
      question
      answer
      round
      hasCategory {... on JeopardyCategory { title } }
    }
  }
}

Example response

The output is like this:

{
  "data": {
    "Get": {
      "JeopardyQuestion": [
        {
          "answer": "Sampan",
          "hasCategory": [
            {
              "title": "TRANSPORTATION"
            }
          ],
          "question": "Smaller than a junk, this Oriental boat usually has a cabin with a roof made of mats",
          "round": "Jeopardy!"
        },
        {
          "answer": "Emmitt Smith",
          "hasCategory": [
            {
              "title": "SPORTS"
            }
          ],
          "question": "In 1994 this Dallas Cowboy scored 22 touchdowns; in 1995 he topped that with 25",
          "round": "Jeopardy!"
        },
        {
          "answer": "Lee Iacocca",
          "hasCategory": [
            {
              "title": "TRANSPORTATION"
            }
          ],
          "question": "Chrysler executive who developed the Ford Mustang",
          "round": "Jeopardy!"
        }
      ]
    }
  }
}

By geo-coordinates

Limitations

Currently, geo-coordinate filtering is limited to the nearest 800 results from the source location, which will be further reduced by any other filter conditions and search parameters.

If you plan on a densely populated dataset, consider using another strategy such as geo-hashing into a text datatype, and filtering further, such as with a ContainsAny filter.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter
from weaviate.classes.query import GeoCoordinate

response = publications.query.fetch_objects(
    filters=(
        Filter
        .by_property("headquartersGeoLocation")
        .within_geo_range(
            coordinate=GeoCoordinate(
                latitude=52.39,
                longitude=4.84
            ),
            distance=1000  # In meters
        )
    )
)

for o in response.objects:
    print(o.properties)  # Inspect returned objects

const publications = client.collections.use('Publication');

const geoResult = await publications.query.fetchObjects({
  filters: publications.filter.byProperty('headquartersGeoLocation').withinGeoRange({
    latitude: 52.39,
    longitude: 4.84,
    distance: 1000
  }),
})

console.log(JSON.stringify(geoResult.objects, null, 2));

geoFilter := filters.Where().
  WithPath([]string{"headquartersGeoLocation"}).
  WithOperator(filters.WithinGeoRange).
  WithValueGeoRange(&filters.GeoCoordinatesParameter{
    Latitude:    52.39,
    Longitude:   4.84,
    MaxDistance: 1000,
  })

response, err := client.GraphQL().Get().
  WithClassName("Publication").
  WithWhere(geoFilter).
  WithFields(graphql.Field{Name: "name"}).
  WithFields(graphql.Field{
    Name: "headquartersGeoLocation",
    Fields: []graphql.Field{
      {Name: "latitude"},
      {Name: "longitude"},
    },
  }).
  Do(ctx)

  var response = publications.query.fetchObjects(
      q -> q.filters(Filter.property("headquartersGeoLocation")
          .withinGeoRange(52.39f, 4.84f, 1000.0f) // In meters
      ));

  for (var o : response.objects()) {
    System.out.println(o.properties()); // Inspect returned objects
  }

    var response = await publications.Query.FetchObjects(
        filters: Filter
            .Property("headquartersGeoLocation")
            .IsWithinGeoRange(new GeoCoordinate(52.39f, 4.84f), 1000.0f) // In meters
    );

    foreach (var o in response.Objects)
    {
        Console.WriteLine(JsonSerializer.Serialize(o.Properties)); // Inspect returned objects
    }

  {
    Get {
      Publication(where: {
        operator: WithinGeoRange,
        valueGeoRange: {
          geoCoordinates: {
            latitude: 52.3932696,    # latitude
            longitude: 4.8374263     # longitude
          },
          distance: {
            max: 1000           # distance in meters
          }
        },
        path: ["headquartersGeoLocation"]  # property needs to be a geoLocation data type.
      }) {
        name
        headquartersGeoLocation {
          latitude
          longitude
        }
      }
    }
  }

By DATE datatype

To filter by a DATE datatype property, specify the date/time as an RFC 3339 timestamp, or a client library-compatible type such as a Python datetime object.

PythonJavaScript/TypeScriptGoJavaC#

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from datetime import datetime, timezone
from weaviate.classes.query import Filter, MetadataQuery

# Set the timezone for avoidance of doubt
filter_time = datetime(2022, 6, 10).replace(tzinfo=timezone.utc)
# The filter threshold could also be an RFC 3339 timestamp, e.g.:
# filter_time = "2022-06-10T00:00:00.00Z"

response = collection.query.fetch_objects(
    limit=3,
    # This property (`some_date`) is a `DATE` datatype
    filters=Filter.by_property("some_date").greater_than(filter_time),
)

for o in response.objects:
    print(o.properties)  # Inspect returned objects

const filterTime = new Date(2020, 5, 10)  // Note that the month is 0-indexed
// The filter threshold could also be an RFC 3339 timestamp, e.g.:
// filterTime = '2022-06-10T00:00:00.00Z'

result = await collectionWithDate.query.fetchObjects({
  limit: 3,
  filters: jeopardy.filter.byProperty('some_date').greaterThan(filterTime),
})

result.objects.forEach((object) =>
  console.log(JSON.stringify(object.properties, null, 2))
);

// Note: In Go, months are 1-indexed
filterTime := time.Date(2020, 6, 10, 0, 0, 0, 0, time.UTC)
// Alternatively, you can use an RFC 3339 timestamp:
// filterTime, _ := time.Parse(time.RFC3339, "2022-06-10T00:00:00Z")

response, err := client.GraphQL().Get().
  WithClassName("Article").
  WithLimit(3).
  WithFields(graphql.Field{Name: "publicationDate"}).
  WithWhere(filters.Where().
    WithPath([]string{"publicationDate"}).
    WithOperator(filters.GreaterThan).
    WithValueDate(filterTime)).
  Do(ctx)

  // Set the timezone for avoidance of doubt - use string format for filter
  String filterTime = "2022-06-10T00:00:00Z";
  // The filter threshold must be an RFC 3339 timestamp string

  var response = collection.query.fetchObjects(q -> q.limit(3)
      // This property (`some_date`) is a `DATE` datatype
      .filters(Filter.property("some_date").gt(filterTime))
  );

  for (var o : response.objects()) {
    System.out.println(o.properties()); // Inspect returned objects
  }

    // Use DateTime object for filter
    DateTime filterTime = new DateTime(2022, 6, 10, 0, 0, 0, DateTimeKind.Utc);

    var response = await collection.Query.FetchObjects(
        limit: 3,
        // This property (`some_date`) is a `DATE` datatype
        filters: Filter.Property("some_date").IsGreaterThan(filterTime)
    );

    foreach (var o in response.Objects)
    {
        Console.WriteLine(JsonSerializer.Serialize(o.Properties)); // Inspect returned objects
    }

Filter by metadata

Filters also work with metadata properties such as object id, property length, and timestamp.

For the full list, see API references: Filters.

By object id

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter

collection = client.collections.use("Article")

target_id = "00037775-1432-35e5-bc59-443baaef7d80"
response = collection.query.fetch_objects(
    filters=Filter.by_id().equal(target_id)
)

for o in response.objects:
    print(o.properties)  # Inspect returned objects
    print(o.uuid)

const myArticleCollection = client.collections.use('Article');
let result = await jeopardy.query.fetchObjects({
  filters: jeopardy.filter.byId().equal(targetId),
})

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

targetID := "00037775-1432-35e5-bc59-443baaef7d80"
response, err := client.GraphQL().Get().
  WithClassName("Article").
  WithFields(graphql.Field{Name: "title"}).
  WithWhere(filters.Where().
    WithPath([]string{"id"}).
    WithOperator(filters.Equal).
    WithValueString(targetID)).
  WithFields(
    graphql.Field{Name: "title"},
    graphql.Field{
      Name: "_additional",
      Fields: []graphql.Field{
        {Name: "id"},
      },
    },
  ).
  Do(ctx)

CollectionHandle<Map<String, Object>> collection =
    client.collections.use("Article");

String targetId = "00037775-1432-35e5-bc59-443baaef7d80";
var response = collection.query
    .fetchObjects(q -> q.filters(Filter.uuid().eq(targetId)));

for (var o : response.objects()) {
  System.out.println(o.properties()); // Inspect returned objects
  System.out.println(o.uuid());
}

var collection = client.Collections.Use("Article");

Guid targetId = Guid.Parse("00037775-1432-35e5-bc59-443baaef7d80");

var response = await collection.Query.FetchObjects(filters: Filter.UUID.IsEqual(targetId));

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties)); // Inspect returned objects
    Console.WriteLine(o.UUID);
}

{
  Get {
    Article(
      where: {
        path: ["id"],
        operator: Equal,
        valueText: "00037775-1432-35e5-bc59-443baaef7d80"
      }
    ) {
      title
      _additional { id }
    }
  }
}

By object timestamp

This filter requires the property timestamp to be indexed.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from datetime import datetime, timezone
from weaviate.classes.query import Filter, MetadataQuery

collection = client.collections.use("Article")

# Set the timezone for avoidance of doubt (otherwise the client will emit a warning)
filter_time = datetime(2020, 1, 1).replace(tzinfo=timezone.utc)

response = collection.query.fetch_objects(
    limit=3,
    filters=Filter.by_creation_time().greater_than(filter_time),
    return_metadata=MetadataQuery(creation_time=True)
)

for o in response.objects:
    print(o.properties)  # Inspect returned objects
    print(o.metadata.creation_time)  # Inspect object creation time

const myArticleCollection = client.collections.use('Article');
const creationTime = '2020-01-01T00:00:00+00:00'

let result = await myArticleCollection.query.fetchObjects({
  filters: jeopardy.filter.byCreationTime().greaterOrEqual(creationTime),
  returnMetadata: ['creationTime']
})

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

timestampStr := "2020-01-01T00:00:00+00:00"
layout := "2006-01-02T15:04:05Z07:00"

timestamp, err := time.Parse(layout, timestampStr)
if err != nil {
  fmt.Println("Error parsing time:", err)
  return
}

response, err := client.GraphQL().Get().
  WithClassName("Article").
  WithFields(graphql.Field{Name: "title"}).
  WithWhere(filters.Where().
    WithPath([]string{"_creationTimeUnix"}).
    WithOperator(filters.GreaterThan).
    WithValueDate(timestamp)).
  WithFields(
    graphql.Field{Name: "title"},
    graphql.Field{
      Name: "_additional",
      Fields: []graphql.Field{
        {Name: "creationTimeUnix"},
      },
    },
  ).
  WithLimit(3).
  Do(ctx)

  //   // highlight-start
  //   // Set the timezone for avoidance of doubt
  //   OffsetDateTime filterTime =
  //       OffsetDateTime.of(2020, 1, 1, 0, 0, 0, 0, ZoneOffset.UTC);
  //   // highlight-end

  //   CollectionHandle<Map<String, Object>> collection =
  //       client.collections.use("Article");
  //   var response = collection.query.fetchObjects(q -> q.limit(3)
  //       // highlight-start
  //       .filters(Filter.byCreationTime().gt(filterTime.toInstant()))
  //       .returnMetadata(Metadata.CREATION_TIME_UNIX)
  //   // highlight-end
  //   );

  //   for (var o : response.objects()) {
  //     System.out.println(o.properties()); // Inspect returned objects
  //     System.out.println(o.metadata().creationTimeUnix()); // Inspect object creation time
  //   }

// Set the timezone for avoidance of doubt
DateTime filterTime = new DateTime(2020, 1, 1, 0, 0, 0, DateTimeKind.Utc);

var collection = client.Collections.Use("Article");

var response = await collection.Query.FetchObjects(
    limit: 3,
    filters: Filter.CreationTime.IsGreaterThan(filterTime),
    returnMetadata: MetadataOptions.CreationTime
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties)); // Inspect returned objects
    Console.WriteLine(o.Metadata.CreationTime); // Inspect object creation time
}

{
  Get {
    Article(
      limit: 3
      where: {
        path: ["_creationTimeUnix"],
        operator: GreaterThan,
        valueDate: "2020-01-01T00:00:00+00:00"
      }
    ) {
      title
      _additional { creationTimeUnix }
    }
  }
}

By object property length

This filter requires the property length to be indexed.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter

collection = client.collections.use("JeopardyQuestion")

response = collection.query.fetch_objects(
    limit=3,
    filters=Filter.by_property("answer", length=True).greater_than(length_threshold),
)

for o in response.objects:
    print(o.properties)  # Inspect returned objects
    print(len(o.properties["answer"]))  # Inspect property length

const jeopardy = client.collections.use('JeopardyQuestion');

const result = await jeopardy.query.fetchObjects({
  filters: jeopardy.filter.byProperty('answer', true).greaterThan(20),
  limit: 3
})

for (let object of result.objects) {
  console.log(JSON.stringify(object.properties, null, 2));
}

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(graphql.Field{Name: "answer"}).
  WithWhere(filters.Where().
    WithPath([]string{"len(answer)"}).
    WithOperator(filters.GreaterThan).
    WithValueInt(20)).
  WithLimit(3).
  Do(ctx)

int lengthThreshold = 20;

CollectionHandle<Map<String, Object>> collection =
    client.collections.use("JeopardyQuestion");
var response = collection.query.fetchObjects(q -> q.limit(3)
    .filters(Filter.propertyLen("answer").gt(lengthThreshold))
);

for (var o : response.objects()) {
  System.out.println(o.properties()); // Inspect returned objects
  System.out.println(((String) o.properties().get("answer")).length()); // Inspect property length
}

int lengthThreshold = 20;

var collection = client.Collections.Use("JeopardyQuestion");
var response = await collection.Query.FetchObjects(
    limit: 3,
    filters: Filter.Property("answer").HasLength().IsGreaterThan(lengthThreshold)
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties)); // Inspect returned objects
    Console.WriteLine(o.Properties["answer"].ToString().Length); // Inspect property length
}

{
  Get {
    JeopardyQuestion(
      limit: 3
      where: {
        path: ["len(answer)"],
        operator: GreaterThan,
        valueInt: 20
      }
    ) {
      answer
    }
  }
}

By object null state

This filter requires the property null state to be indexed.

PythonJavaScript/TypeScriptGoJavaC#GraphQL

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

from weaviate.classes.query import Filter

collection = client.collections.use("WineReview")

response = collection.query.fetch_objects(
    limit=3,
    # This requires the `country` property to be configured with `index_null_state=True``
    filters=Filter.by_property("country").is_none(True)  # Find objects where the `country` property is null
)
print("despot. othing") 
for o in response.objects:
    print("despot"+o.properties)  # Inspect returned objects

  const result = await jeopardy.query.fetchObjects({
    // This requires the `points` property to be configured with `index_null_state=True``
    filters: jeopardy.filter.byProperty('points').isNull(true),
    limit: 3
  })

  for (let object of result.objects) {
    console.log(JSON.stringify(object.properties, null, 2));
  }

response, err := client.GraphQL().Get().
  WithClassName("JeopardyQuestion").
  WithFields(graphql.Field{Name: "points"}).
  WithWhere(filters.Where().
    WithPath([]string{"points"}).
    WithOperator(filters.IsNull).
    WithValueBoolean(true)).
  WithLimit(3).
  Do(ctx)

CollectionHandle<Map<String, Object>> collection =
    client.collections.use("WineReview");
var response = collection.query.fetchObjects(q -> q.limit(3)
    // This requires the `country` property to be configured with`index_null_state=True``
    .filters(Filter.property("country").isNull()) // Find objects where the `country` property is null
);

for (var o : response.objects()) {
  System.out.println(o.properties()); // Inspect returned objects
}

var collection = client.Collections.Use("WineReview");
var response = await collection.Query.FetchObjects(
    limit: 3,
    // This requires the `country` property to be configured with `indexNullState: true` in the schema
    filters: Filter.Property("country").IsNull() // Find objects where the `country` property is null
);

foreach (var o in response.Objects)
{
    Console.WriteLine(JsonSerializer.Serialize(o.Properties)); // Inspect returned objects
}

{
  Get {
    JeopardyQuestion(
      limit: 3
      where: {
        path: ["points"],
        operator: IsNull,
        valueBoolean: true
      }
    ) {
      points
    }
  }
}

Filter on nested object properties

Preview feature

Available from Weaviate v1.38 as a preview, gated by the WEAVIATE_PREVIEW_NESTED_FILTERING=on environment variable on the server. The path syntax and operator semantics are stable, but the on-disk encoding may change before GA — don't rely on persistent state from preview clusters carrying over to the GA release. The env var is removed at GA and the feature is enabled unconditionally.

object and object[] properties carry their own nested schemas. To filter on a value inside a nested object, use a single dotted path naming the path from the parent property down to the leaf you want to compare.

Given a collection like this:

client.collections.create(
    name="Document",
    vector_config=Configure.Vectors.self_provided(),
    inverted_index_config=Configure.inverted_index(index_null_state=True),
    properties=[
        Property(name="title", data_type=DataType.TEXT, tokenization=Tokenization.FIELD),
        Property(
            name="cars",
            data_type=DataType.OBJECT_ARRAY,
            nested_properties=[
                Property(name="make",  data_type=DataType.TEXT, tokenization=Tokenization.FIELD),
                Property(name="color", data_type=DataType.TEXT, tokenization=Tokenization.FIELD),
                Property(
                    name="tires",
                    data_type=DataType.OBJECT_ARRAY,
                    nested_properties=[
                        Property(name="brand", data_type=DataType.TEXT, tokenization=Tokenization.FIELD),
                        Property(name="width", data_type=DataType.INT),
                    ],
                ),
            ],
        ),
    ],
)

The filter property is a single dotted path. The dot is the only separator. An optional [N] after any segment pins that segment to an array index (0-based).

Path	Meaning
cars.make	Any car's make (matches if any element of the cars array has it)
cars[0].make	The first car's make (positional)
cars.tires.width	Any tire on any car (recursive across two object[] levels)
cars[1].tires[2].brand	The second car's third tire's brand (positional through nesting)

[N] on a segment requires that segment to be an object[] (array). Every intermediate segment must be object or object[] — you cannot pivot through a scalar. The leaf may be any supported scalar type.

Match any element (default)

A path without [N] markers matches if any element in the parent array satisfies the condition.

Python

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

# "any car has make = Toyota" — matches Doc 1 (first car) and Doc 2 (only car)
response = docs.query.fetch_objects(
    filters=Filter.by_property("cars.make").equal("Toyota"),
    return_properties=["title"],
)

for o in response.objects:
    print(o.properties)

Match by position

Use [N] to pin a path segment to a specific array index. Indices are 0-based.

Python

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

# "the FIRST car has make = Toyota" — Doc 3's first car is Honda, so it's excluded
response = docs.query.fetch_objects(
    filters=Filter.by_property("cars[0].make").equal("Toyota"),
    return_properties=["title"],
)

Same-element correlation across leaves

Combining two leaf filters with And matches when the same element in the parent array satisfies both. A document with one car (Toyota, blue) and another (Honda, red) would not match cars.make = "Toyota" AND cars.color = "red" — both conditions must hold on the same car.

Python

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

# "the SAME car is both Toyota AND red" — only Doc 1's first car qualifies.
# Without same-element correlation a doc with separate (Toyota, blue) and
# (Honda, red) cars would also match, which is wrong.
response = docs.query.fetch_objects(
    filters=(
        Filter.by_property("cars.make").equal("Toyota")
        & Filter.by_property("cars.color").equal("red")
    ),
    return_properties=["title"],
)

Deep / recursive paths

object[] can nest inside object[] to any depth. Each segment in the dotted path traverses one level.

Python

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

# "any tire on any car is wider than 200" — Doc 1 (215) and Doc 3 (250)
response = docs.query.fetch_objects(
    filters=Filter.by_property("cars.tires.width").greater_than(200),
    return_properties=["title"],
)

Check whether a nested object is absent

Pointing a path at an object or object[] segment (rather than a scalar leaf) is only valid with IsNull, which asks whether that whole sub-object is present.

Python

  API docs

More infoCode snippets in the documentation reflect the latest client library and Weaviate Database version. Check the Release notes for specific versions.

If a snippet doesn't work or you have feedback, please open a GitHub issue.

# "the first car has no tires" — only the Toyota in Doc 2
response = docs.query.fetch_objects(
    filters=Filter.by_property("cars[0].tires").is_none(True),
    return_properties=["title"],
)

Limitations

note

• Allowed leaf data types: text, int, number, boolean, date, uuid, and their array variants. blob, blobHash, geoCoordinates, phoneNumber, and cross-references (cref) are not allowed inside nested objects for nested filtering.
• IndexFilterable is required: nested filtering uses the filterable inverted index on each leaf. IndexRangeFilters and IndexSearchable flags exist on nested-property definitions but are not yet exercised by the nested searcher — range filters on nested numeric leaves currently use the filterable bucket.
• Tokenization matters: nested text leaves use the same tokenization options as flat properties. For exact-match filters on names, codes, or identifiers, set tokenization: field on the leaf so the value is stored as a single token.
• Reference-path vs nested-path: a reference-path filter is a multi-element Path (["inCity", "City", "name"]) traversing cross-references; a nested-path filter is a single-element path with dots inside it (["cars.make"]).

Filter considerations

Tokenization

Weaviate converts filter terms into tokens. The default tokenization is word. The word tokenizer keeps alphanumeric characters, lowercase them and splits on whitespace. It converts a string like "Test_domain_weaviate" into "test", "domain", and "weaviate".

For details and additional tokenization methods, see Tokenization.

Improve filter performance

If you encounter slow filter performance, consider adding a limit parameter or additional where operators to restrict the size of your data set.

List of filter operators

For a list of filter operators, see the reference page.

Related pages

• Connect to Weaviate
• API References: Filters

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