Modifying a SQL Throttling Rule

Function

This API is used to modify a SQL throttling rule. Currently, this function is only available to RDS for PostgreSQL.

Authorization Information

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

If you are using role/policy-based authorization, see the required permissions in Permissions Policies and Supported Actions.

If you are using identity policy-based authorization, the following identity policy-based permissions are required.

Action	Access Level	Resource Type (*: Required)	Condition Key	Alias	Dependency
das:clouddba:updateSqlLimitRules	Write	Instance	-	-	-

URI

PUT /v3/{project_id}/instances/{instance_id}/sql-limit/rules

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Explanation: Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID. Constraints: N/A Values: The value can contain 32 characters. Only letters and digits are allowed. Default value: N/A
instance_id	Yes	String	Explanation: Unique ID of an instance Constraints: N/A Values: The value can contain 32 characters. Only letters and digits are allowed. Default value: N/A

Request Parameters

**Table 2** Request body parameters
Parameter	Mandatory	Type	Description
datastore_type	Yes	String	Explanation: Database type Constraints: N/A Values: PostgreSQL Default value: N/A
sql_limit_rule_ids	Yes	Array of strings	Explanation: ID of a SQL throttling rule Constraints: N/A Values: N/A Default value: N/A
database_name	No	String	Explanation: Database name Constraints: Mandatory for RDS for PostgreSQL Values: N/A Default value: N/A
sql_limit_rule	Yes	Objects in Table 3	Explanation: SQL throttling rule to be modified Constraints: N/A Values: N/A Default value: N/A

**Table 3** UpdateSqlLimitRuleOption
Parameter	Mandatory	Type	Description
max_concurrency	Yes	Integer	Explanation: Maximum concurrent SQL statements Constraints: N/A Values: [0, 2^31-1]. The actual value depends on the query result. Default value: N/A
max_waiting	No	Integer	Explanation: Maximum waiting time Constraints: N/A Values: [0, 2^31-1]. The actual value depends on the query result. Default value: N/A

Response Parameters

Status code: 200

None

Example Request

Creating a SQL throttling rule

PUT https://das.cn-north-1.myhuaweicloud.com/v3/054c630ff780d4cc2f40c00d7f6fb21d/instances/d871e13ee1044e21a473330cd67047cbin01/sql-limit/rules

{
    "datastore_type": "postgresql",
    "database_name": "postgres",
    "sql_limit_rule_ids": [
        "1",
        "4"
    ],
    "sql_limit_rule": {
        "max_concurrency": 5,
        "max_waiting": 5
    }
}