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

# Get Rows Version

Returns an `ETag` header containing the current version of the table data.

This endpoint may be polled to detect changes in the table's data.

<Tip>
  To learn more about versioning and how to detect changes, please see our guide on [data versioning](/api-reference/v2/tables/versioning).
</Tip>

***

#### Response Headers

<ResponseField name="ETag" type="string">
  The current version of the table data.
</ResponseField>


## OpenAPI

````yaml head /tables/{tableID}/rows
openapi: 3.0.0
info:
  title: ''
  version: 0.0.1
servers:
  - description: Production
    url: https://api.glideapps.com
security:
  - BearerAuth: []
tags: []
paths:
  /tables/{tableID}/rows:
    head:
      description: Gets information about the data in a Big Table
      parameters:
        - name: tableID
          in: path
          schema:
            type: string
            description: ID of the table, e.g., `2a1bad8b-cf7c-44437-b8c1-e3782df6`
            example: 2a1bad8b-cf7c-44437-b8c1-e3782df6
          required: true
      responses:
        '200':
          description: ''
          headers:
            ETag:
              schema:
                type: string
                description: The current version of the table
              required: true
        '400':
          description: ''
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                      message:
                        type: string
                    required:
                      - type
                      - message
                    additionalProperties: false
                required:
                  - error
                additionalProperties: false
        '404':
          description: ''
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - table_not_found
                          - table_not_big_table
                      message:
                        type: string
                    required:
                      - type
                      - message
                    additionalProperties: false
                required:
                  - error
                additionalProperties: false
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: >-
        Bearer authentication header of the form Bearer `<token>`, where
        `<token>` is your [auth
        token](/api-reference/v2/general/authentication).

````