DescribeWaitingSQLInfo - AnalyticDB - Alibaba Cloud Documentation Center

Queries the information about a lock-waiting query for an AnalyticDB for PostgreSQL instance.

Operation description

You can call this operation to query the details of a lock-waiting query only for an AnalyticDB for PostgreSQL V6.0 instance in elastic storage mode.

Limits

You can call this operation up to 1,000 times per second per account. If the number of the calls per second exceeds the limit, throttling is triggered. As a result, your business may be affected. We recommend that you take note of the limit when you call this operation.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

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
gpdb:DescribeWaitingSQLInfo	get	DBInstance `acs:gpdb::{#accountId}:dbinstance/{#DBInstanceId}`	none	none

Request parameters

Parameter	Type	Required	Description	Example
DBInstanceId	string	Yes	The ID of the instance. Note You can call the DescribeDBInstances operation to query the instance IDs of all AnalyticDB for PostgreSQL instances in a specific region.	gp-bp12ga6v69h86****
PID	string	Yes	The ID of the process that uniquely identifies the query. Note You can call the DescribeWaitingSQLRecords operation to obtain the process IDs of lock-waiting queries.	100
Database	string	Yes	The name of the database.	test

Response parameters

Parameter	Type	Description	Example
	object
RequestId	string	The ID of the request.	B4CAF581-2AC7-41AD-8940-D56DF7AADF5B
Database	string	The name of the database.	test
Items	array<object>	The queried lock-waiting query.
item	object
PID	string	The ID of the process that uniquely identifies the query.	100
User	string	The database account that is used to perform the query.	testUser
SQLStmt	string	The SQL statement of the query.	Select * from t1,t2 where t1.id=t2.id;
Application	string	The application that sent the query.	DataGrip 2022.1.5
NotGrantLocks	string	The unauthorized locks.	AccessShareLock
BlockedByPID	string	The process ID of the blocking query.	110
BlockedByUser	string	The database account that is used to perform the blocking query.	testUser1
BlockedBySQLStmt	string	The SQL statement of the blocking query.	Select * from t1;
BlockedByApplication	string	The application that sent the blocking query.	DataGrip 2022.1.5
GrantLocks	string	The authorized locks.	ShareLock,AccessExclusiveLock

Examples

Sample success responses

JSONformat

{
  "RequestId": "B4CAF581-2AC7-41AD-8940-D56DF7AADF5B",
  "Database": "test",
  "Items": [
    {
      "PID": 100,
      "User": "testUser",
      "SQLStmt": "Select * from t1,t2 where t1.id=t2.id;",
      "Application": "DataGrip 2022.1.5",
      "NotGrantLocks": "AccessShareLock",
      "BlockedByPID": 110,
      "BlockedByUser": "testUser1",
      "BlockedBySQLStmt": "Select * from t1;",
      "BlockedByApplication": "DataGrip 2022.1.5",
      "GrantLocks": "ShareLock,AccessExclusiveLock"
    }
  ]
}

Error codes

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

Change history

Change time	Summary of changes	Operation
2022-10-27	Add Operation	View Change Details