# Source: https://docs.lancedb.com/api-reference/rest/table/list-indexes-on-a-table.md

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lancedb.com/llms.txt
> Use this file to discover all available pages before exploring further.

# List indexes on a table

> List all indices created on a table. Returns information about each index
including name, columns, status, and UUID.




## OpenAPI

````yaml api-reference/rest/openapi.yml post /v1/table/{id}/index/list
openapi: 3.1.1
info:
  title: Lance Namespace Specification
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0.html
  version: 1.0.0
  description: >
    This OpenAPI specification is a part of the Lance namespace specification.
    It contains 2 parts:


    The `components/schemas`, `components/responses`, `components/examples`,
    `tags` sections define

    the request and response shape for each operation in a Lance Namespace
    across all implementations.

    See https://lance.org/format/namespace/operations for more details.


    The `servers`, `security`, `paths`, `components/parameters` sections are for
    the 

    Lance REST Namespace implementation, which defines a complete REST server
    that can work with Lance datasets.

    See https://lance.org/format/namespace/rest for more details.
servers:
  - url: '{scheme}://{host}:{port}/{basePath}'
    description: Generic server URL with all parts configurable
    variables:
      scheme:
        default: http
      host:
        default: localhost
      port:
        default: '2333'
      basePath:
        default: ''
  - url: '{scheme}://{host}/{basePath}'
    description: Server URL when the port can be inferred from the scheme
    variables:
      scheme:
        default: http
      host:
        default: localhost
      basePath:
        default: ''
security:
  - OAuth2: []
  - BearerAuth: []
  - ApiKeyAuth: []
tags:
  - name: Namespace
    description: |
      Operations that are related to a namespace
  - name: Table
    description: |
      Operations that are related to a table
  - name: Index
    description: |
      Operations that are related to an index
  - name: Tag
    description: |
      Operations that are related to tags
  - name: Transaction
    description: |
      Operations that are related to a transaction
  - name: Metadata
    description: >
      Operations that only interact with object metadata and should be
      computationally lightweight
  - name: Data
    description: >
      Operations that interact with object data and might be computationally
      intensive
paths:
  /v1/table/{id}/index/list:
    parameters:
      - $ref: '#/components/parameters/id'
      - $ref: '#/components/parameters/delimiter'
    post:
      tags:
        - Table
        - Index
        - Metadata
      summary: List indexes on a table
      description: >
        List all indices created on a table. Returns information about each
        index

        including name, columns, status, and UUID.
      operationId: ListTableIndices
      requestBody:
        description: Index list request
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ListTableIndicesRequest'
        required: true
      responses:
        '200':
          $ref: '#/components/responses/ListTableIndicesResponse'
        '400':
          $ref: '#/components/responses/BadRequestErrorResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedErrorResponse'
        '403':
          $ref: '#/components/responses/ForbiddenErrorResponse'
        '404':
          $ref: '#/components/responses/NotFoundErrorResponse'
        '503':
          $ref: '#/components/responses/ServiceUnavailableErrorResponse'
        5XX:
          $ref: '#/components/responses/ServerErrorResponse'
components:
  parameters:
    id:
      name: id
      description: >
        `string identifier` of an object in a namespace, following the Lance
        Namespace spec.

        When the value is equal to the delimiter, it represents the root
        namespace.

        For example, `v1/namespace/$/list` performs a `ListNamespace` on the
        root namespace.
      in: path
      required: true
      schema:
        type: string
    delimiter:
      name: delimiter
      description: >
        An optional delimiter of the `string identifier`, following the Lance
        Namespace spec.

        When not specified, the `$` delimiter must be used.
      in: query
      required: false
      schema:
        type: string
  schemas:
    ListTableIndicesRequest:
      type: object
      properties:
        identity:
          $ref: '#/components/schemas/Identity'
        context:
          $ref: '#/components/schemas/Context'
        id:
          type: array
          items:
            type: string
          description: The namespace identifier
        version:
          type: integer
          format: int64
          minimum: 0
          nullable: true
          description: Optional table version to list indexes from
        page_token:
          $ref: '#/components/schemas/PageToken'
        limit:
          $ref: '#/components/schemas/PageLimit'
    Identity:
      type: object
      description: |
        Identity information of a request.
      properties:
        api_key:
          type: string
          description: |
            API key for authentication.

            REST NAMESPACE ONLY
            This is passed via the `x-api-key` header.
        auth_token:
          type: string
          description: |
            Bearer token for authentication.

            REST NAMESPACE ONLY
            This is passed via the `Authorization` header
            with the Bearer scheme (e.g., `Bearer <token>`).
    Context:
      type: object
      description: >
        Arbitrary context for a request as key-value pairs.

        How to use the context is custom to the specific implementation.


        REST NAMESPACE ONLY

        Context entries are passed via HTTP headers using the naming convention

        `x-lance-ctx-<key>: <value>`. For example, a context entry

        `{"trace_id": "abc123"}` would be sent as the header
        `x-lance-ctx-trace_id: abc123`.
      additionalProperties:
        type: string
    PageToken:
      description: >
        An opaque token that allows pagination for list operations (e.g.
        ListNamespaces).


        For an initial request of a list operation, 

        if the implementation cannot return all items in one response,

        or if there are more items than the page limit specified in the request,

        the implementation must return a page token in the response,

        indicating there are more results available.


        After the initial request, 

        the value of the page token from each response must be used

        as the page token value for the next request.


        Caller must interpret either `null`, 

        missing value or empty string value of the page token from

        the implementation's response as the end of the listing results.
      type: string
      nullable: true
    PageLimit:
      description: |
        An inclusive upper bound of the 
        number of results that a caller will receive.
      type: integer
      nullable: true
    ListTableIndicesResponse:
      type: object
      required:
        - indexes
      properties:
        indexes:
          type: array
          items:
            $ref: '#/components/schemas/IndexContent'
          description: List of indexes on the table
        page_token:
          $ref: '#/components/schemas/PageToken'
    ErrorResponse:
      type: object
      description: Common JSON error response model
      required:
        - code
      properties:
        error:
          type: string
          description: A brief, human-readable message about the error.
          example: Table 'users' not found in namespace 'production'
        code:
          type: integer
          minimum: 0
          description: |
            Lance Namespace error code identifying the error type.

            Error codes:
              0 - Unsupported: Operation not supported by this backend
              1 - NamespaceNotFound: The specified namespace does not exist
              2 - NamespaceAlreadyExists: A namespace with this name already exists
              3 - NamespaceNotEmpty: Namespace contains tables or child namespaces
              4 - TableNotFound: The specified table does not exist
              5 - TableAlreadyExists: A table with this name already exists
              6 - TableIndexNotFound: The specified table index does not exist
              7 - TableIndexAlreadyExists: A table index with this name already exists
              8 - TableTagNotFound: The specified table tag does not exist
              9 - TableTagAlreadyExists: A table tag with this name already exists
              10 - TransactionNotFound: The specified transaction does not exist
              11 - TableVersionNotFound: The specified table version does not exist
              12 - TableColumnNotFound: The specified table column does not exist
              13 - InvalidInput: Malformed request or invalid parameters
              14 - ConcurrentModification: Optimistic concurrency conflict
              15 - PermissionDenied: User lacks permission for this operation
              16 - Unauthenticated: Authentication credentials are missing or invalid
              17 - ServiceUnavailable: Service is temporarily unavailable
              18 - Internal: Unexpected server/implementation error
              19 - InvalidTableState: Table is in an invalid state for the operation
              20 - TableSchemaValidationError: Table schema validation failed
          example: 4
        detail:
          type: string
          description: >
            An optional human-readable explanation of the error.

            This can be used to record additional information such as stack
            trace.
          example: The table may have been dropped or renamed
        instance:
          type: string
          description: >
            A string that identifies the specific occurrence of the error.

            This can be a URI, a request or response ID,

            or anything that the implementation can recognize to trace specific
            occurrence of the error.
          example: /v1/table/production$users/describe
    IndexContent:
      type: object
      required:
        - index_name
        - index_uuid
        - columns
        - status
      properties:
        index_name:
          type: string
          description: Name of the index
        index_uuid:
          type: string
          description: Unique identifier for the index
        columns:
          type: array
          items:
            type: string
          description: Columns covered by this index
        status:
          type: string
          description: Current status of the index
  responses:
    ListTableIndicesResponse:
      description: List of indices on the table
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ListTableIndicesResponse'
    BadRequestErrorResponse:
      description: >-
        Indicates a bad request error. It could be caused by an unexpected
        request body format or other forms of request validation failure, such
        as invalid json. Usually serves application/json content, although in
        some cases simple text/plain content might be returned by the server's
        middleware.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            type: /errors/bad-request
            title: Malformed request
            status: 400
            detail: ''
            instance: /v1/namespaces
    UnauthorizedErrorResponse:
      description: >-
        Unauthorized. The request lacks valid authentication credentials for the
        operation.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            type: /errors/unauthorized-request
            title: No valid authentication credentials for the operation
            status: 401
            detail: ''
            instance: /v1/namespaces
    ForbiddenErrorResponse:
      description: Forbidden. Authenticated user does not have the necessary permissions.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            type: /errors/forbidden-request
            title: Not authorized to make this request
            status: 403
            detail: ''
            instance: /v1/namespaces
    NotFoundErrorResponse:
      description: A server-side problem that means can not find the specified resource.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            type: /errors/not-found-error
            title: Not found Error
            status: 404
            detail: ''
            instance: /v1/namespaces/{ns}
    ServiceUnavailableErrorResponse:
      description: >-
        The service is not ready to handle the request. The client should wait
        and retry. The service may additionally send a Retry-After header to
        indicate when to retry.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            type: /errors/service-unavailable
            title: Slow down
            status: 503
            detail: ''
            instance: /v1/namespaces
    ServerErrorResponse:
      description: >-
        A server-side problem that might not be addressable from the client
        side. Used for server 5xx errors without more specific documentation in
        individual routes.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            type: /errors/server-error
            title: Internal Server Error
            status: 500
            detail: ''
            instance: /v1/namespaces
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: /oauth/token
          scopes: {}
    BearerAuth:
      type: http
      scheme: bearer
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key

````