This topic describes the release notes for Database Autonomy Service (DAS) and provides links to the relevant references.

May 2022

Database engine Feature Description Release date References
ApsaraDB RDS for PostgreSQL Automatic storage scaling If the used storage space of a database instance is greater than or equal to the specified threshold, DAS automatically scales up the storage capacity of the database instance. 2022-05-30 Automatic storage capacity expansion
Redis Session management API operations for the session management feature are added to terminate all sessions of a specified instance. 2022-05-26 KillInstanceAllSession
ApsaraDB RDS for MySQL, PolarDB for MySQL, and PolarDB-X 2.0 Intelligent stress testing API operations for the intelligent stress testing feature are added to delete the metadata of released DBGateways in intelligent stress testing tasks. 2022-05-26 DeleteStopGateway

April 2022

Database engine Feature Description Release date References
ApsaraDB RDS for MySQL, ApsaraDB RDS for PostgreSQL, Redis, and PolarDB for MySQL Event center The event center feature is added to display the details and statistics of exceptions, optimization suggestions, and auto scaling events of database instances, including events in planning, events in execution, and executed events. 2022-04-24 Event center

March 2022

Database engine Feature Description Release date References
ApsaraDB RDS for MySQL and PolarDB for MySQL SQL Review

The SQL Review feature is upgraded.

The SQL Review feature performs workload analysis on database instances within the diagnostic time range and the baseline time range, and performs in-depth analysis on running SQL queries in database instances. This feature displays the index optimization suggestions, SQL rewrite suggestions, top resource-consuming SQL statements, new SQL statements, failed SQL statements, SQL feature analysis, SQL statements with high execution variation, SQL statements with deteriorated performance, and top tables that generate the most traffic for database instances.

2022-03-31 SQL Review
ApsaraDB RDS for MySQL, PolarDB for MySQL, and Redis Auto scaling The auto scaling feature is added. This feature allows DAS to provide suggestions for scaling up or down database instances based on predefined policies when the performance of the database instances reaches the specified thresholds. 2022-03-29
ApsaraDB RDS for PostgreSQL SQL optimization The SQL optimization feature is supported by ApsaraDB RDS for PostgreSQL database instances. 2022-03-03 SQL optimization
ApsaraDB RDS for MySQL and PolarDB for MySQL SQL Explorer API operations for the SQL Explorer feature are added. 2022-03-02
ApsaraDB RDS for MySQL, ApsaraDB RDS for PostgreSQL, PolarDB for MySQL, and PolarDB-X 2.0 DAS Professional Edition management API operations for managing DAS Professional Edition are added. 2022-03-02

January 2022

Database engine Feature Description Release date References
ApsaraDB RDS for MySQL, ApsaraDB RDS for PostgreSQL, and PolarDB for MySQL Query governance API operations for the query governance feature are added. 2022-01-30
Redis Latency insight Latency statistics for all commands and custom events are collected. These latency statistics are accurate to the microsecond.
Note This feature is currently available only to specific users but will be available to all users in the future.
2022-01-13 Latency insight