Updated on 2026-08-25 GMT+08:00

Querying the Missing Index Count Trend

Function

This API is used to query the missing index count trend.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

If you are using role/policy-based authorization, see Permissions and Supported Actions for details on the required permissions.
If you are using identity policy-based authorization, the permission listed below is required.

Action

Access Level

Resource Type (*: required)

Condition Key

Alias

Dependencies

das::showCloudDBAInfo

read

-

-

-

-

Action	Access Level	Resource Type (*: required)	Condition Key	Alias	Dependencies
das::showCloudDBAInfo	read	-	-	-	-

URI

GET /v3/{project_id}/instances/{instance_id}/missing-index/get-missing-index-trend

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID of a tenant in a region. To obtain the value, see Obtaining a Project ID. Constraints N/A Range The value can contain 32 characters. Only letters and digits are allowed. Default Value N/A
instance_id	Yes	String	Definition Instance ID, which uniquely identifies an instance. Constraints N/A Range The value can contain 32 characters. Only letters and digits are allowed. Default Value N/A

Request Parameters

None

Response Parameters

Status code: 200

**Table 2** Response body parameters
Parameter	Type	Description
trend_list	Array of objects in Table 3	Definition Trend list. Range N/A
user_cost_trend	Table 4 object	Definition Average user query cost decrease. Range N/A
user_impact_trend	Table 4 object	Definition Average performance improvement. Range N/A
user_seek_trend	Table 5 object	Definition Last user seek time. Range N/A

**Table 3** Point
Parameter	Type	Description
collect_time	Long	Definition Collection time. Range N/A
total_missing_index_count	Long	Definition Total number of missing indexes. Range N/A

**Table 4** Percent
Parameter	Type	Description
percent_le10_count	Long	Definition Number of indexes whose metric percentage is less than or equal to 10%. Range N/A
percent10_to50_count	Long	Definition Number of indexes whose metric percentage is greater than 10% and less than or equal to 50%. Range N/A
percent50_to80_count	Long	Definition Number of indexes whose metric percentage is greater than 50% and less than or equal to 80%. Range N/A
percent_gl80_count	Long	Definition Number of indexes whose metric percentage is greater than 80%. Range N/A

**Table 5** seek
Parameter	Type	Description
last_day_user_seek_count	Long	Definition Number of user access records in the last day. Range N/A
last_week_user_seek_count	Long	Definition Number of user access records in the last week. Range N/A
last_two_week_user_seek_count	Long	Definition Number of user access records in the last two weeks. Range N/A
last_month_user_seek_count	Long	Definition Number of user access records in the last month. Range N/A

Example Requests

GET https://das.cn-north-1.myhuaweicloud.com/v3/054e292c9880d4992f02c0196d3ea468/instances/index-usage/get-index-usage-trend

Example Responses

Status code: 200

Success.

{
    "trend_list": [
        {
            "collect_time": 1763641984000,
            "max_fragmentation_percentage": 99.75,
            "index_size_mb": 11138.34,
            "page_count": 1425707
        }
    ],
    "fragmentation_trend": {
        "percent_le10_count": 112,
        "percent10_to50_count": 63,
        "percent50_to80_count": 10,
        "percent_gl80_count": 133
    },
    "usage_trend": {
        "percent_le10_count": 253,
        "percent10_to50_count": 15,
        "percent50_to80_count": 10,
        "percent_gl80_count": 40
    }
}

Status Codes

Status Code	Description
200	Success.
400	Client error.
500	Server error.

Error Codes

See Error Codes.

Parent topic: Intelligent O&M