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PolarDB:DescribeExpandLogicTableInfoList

Last Updated:Jul 10, 2026

Calls the DescribeExpandLogicTableInfoList operation to query shard keys.

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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

drds:DescribeExpandLogicTableInfoList

get

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

DrdsInstanceId

string

Yes

The instance ID.

drds************

DbName

string

Yes

The database name.

drds_flashback

Response elements

Element

Type

Description

Example

object

Success

boolean

Indicates whether the request was successful.

true

RequestId

string

The request ID.

0B6B7BDC-575D-4A77-A4F8-24B7EF******

Data

object

data

array<object>

The result.

object

ShardTbKey

string

Indicates the table sharding key.

address

TableName

string

Indicates the name of the table.

employee_split2

ShardDbKey

string

Indicates the database sharding key.

id

Examples

Success response

JSON format

{
  "Success": true,
  "RequestId": "0B6B7BDC-575D-4A77-A4F8-24B7EF******",
  "Data": {
    "data": [
      {
        "ShardTbKey": "address",
        "TableName": "employee_split2",
        "ShardDbKey": "id"
      }
    ]
  }
}

Error codes

HTTP status code

Error code

Error message

Description

500 InternalError The request processing has failed due to some unknown error.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.