ListColumns

Operation description

DataWorks Basic Edition or a higher edition is required.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

dataworks:ListColumns

list

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
TableId	string	Yes	The table ID. Call the ListTables operation or refer to Concepts related to metadata entities to obtain this value.	maxcompute-table:::project_name:[schema_name]:table_name
Name	string	No	The column name. Supports fuzzy match.	test_table
Comment	string	No	The column comment. Supports fuzzy match.	test comment
SortBy	string	No	The sort field. Default: Position. Valid values: Name Position	Position
Order	string	No	The sort order. Default: Asc. Valid values: Asc Desc	Asc
PageNumber	integer	No	The page number. Default: 1.	1
PageSize	integer	No	The page size. Default: 10. Maximum: 100.	10

Response elements

Element	Type	Description	Example
	object	The response.
RequestId	string	The request ID.	D1E2E5BC-xxxx-xxxx-xxxx-xxxxxx
Success	boolean	Indicates whether the request was successful.	true
PagingInfo	object	The pagination information.
TotalCount	integer	The total number of records.	1
PageNumber	integer	The page number.	1
PageSize	integer	The number of records per page.	10
Columns	array	The table columns.
	Column	The column.

Examples

Success response

JSON format

{
  "RequestId": "D1E2E5BC-xxxx-xxxx-xxxx-xxxxxx",
  "Success": true,
  "PagingInfo": {
    "TotalCount": 1,
    "PageNumber": 1,
    "PageSize": 10,
    "Columns": [
      {
        "Id": "maxcompute-column:123456::test_project:default:test_tbl:col1",
        "Name": "col1",
        "Comment": "字段1",
        "TableId": "maxcompute-table:123456::test_project:default:test_tbl",
        "Position": 1,
        "Type": "bigint",
        "PrimaryKey": false,
        "PartitionKey": false,
        "ForeignKey": false,
        "BusinessMetadata": {
          "Description": "字段1的业务描述"
        }
      }
    ]
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.