DescribeMVRecommendResults - AnalyticDB - Alibaba Cloud Documentation Center

Retrieves the result of a recommendation task for a materialized view.

Operation description

For information about the endpoints of AnalyticDB for MySQL, see Endpoints .

Debugging

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Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- For mandatory resource types, indicate with a prefix of * .
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
adb:DescribeMVRecommendResults	get	*DBClusterLakeVersion `acs:adb:{#regionId}:{#accountId}:dbcluster/{#DBClusterId}`	none	none

Request parameters

Parameter	Type	Required	Description	Example
SubtaskId	long	No	The subtask ID.	123
TaskName	string	No	The name of the recommendation task.	task_n1
PageNumber	integer	No	The page number.	1
PageSize	integer	No	The number of entries to return per page.	30
DBClusterId	string	No	The cluster ID.	am-bp1ub9grke1****
RegionId	string	No	The region ID.	cn-hangzhou
From	string	No	Fixed system value (non-modifiable).
ActionInner	string	No	Fixed system value (non-modifiable).
OrderBy	string	No	The sorting field.	{"Type": "Desc","Field": "AcceleratedQueriesCount"}

Response parameters

Parameter	Type	Description	Example
	object	Schema of Response
RequestId	string	Id of the request	1AD222E9-E606-4A42-BF6D-8A4442913CEF
PageNumber	long	The page number.	1
PageSize	long	The number of entries returned per page.	30
TotalCount	long	The total number of entries returned.	20
Data	object	The returned data.
PageNumber	long	The page number. Default value: 1.	1
PageSize	long	The number of entries returned per page. Valid values: 30 (default). 50. 100.	20
TotalCount	long	The total number of entries.	1

Examples

Sample success responses

JSONformat

{
  "RequestId": "1AD222E9-E606-4A42-BF6D-8A4442913CEF",
  "PageNumber": 1,
  "PageSize": 30,
  "TotalCount": 20,
  "Data": {
    "PageNumber": 1,
    "PageSize": 20,
    "TotalCount": 1,
    "MvRecommendResultModels": [
      {
        "BaseTables": [
          {
            "TableName": "",
            "DataVolumn": "",
            "EnableBinlog": true,
            "SchemaName": ""
          }
        ],
        "AcceleratedQueriesCount": 0,
        "SupportIncrementalRefresh": true,
        "SubqueryId": 0,
        "SavedScanbytes": 0,
        "Subquery": ""
      }
    ]
  }
}

Error codes

HTTP status code	Error code	Error message	Description
400	MDS.IllegalArgument	Invalid argument.	An invalid parameter is used.
400	MDS.InvalidPrivilege	No permissions.	You are not authorized to perform this operation.
400	MDS.MetaSchemaAlreadyExist	The database already exists.	The specified database already exists.
400	MDS.MetaSchemaNotExist	The database does not exist.	The specified database does not exist.
400	MDS.MetaTableAlreadyExist	The table already exists.	The specified table already exists.
400	MDS.MetaTableNotExist	The table is not found.	The specified table does not exist.
403	MDS.RamAuthAccessDenied	ram auth access denied.	RAM authentication failed
500	MDS.InternalError	An internal MDS error occurred.	An internal error occurred.
500	MDS.MetaVisitError	Failed to access metadata.	Failed to access the metadata.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2025-11-03	Add Operation	View Change Details