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

December 2022

Database engineFeatureDescriptionRelease dateReferences
ApsaraDB for RedisAuto scalingAn API operation is added to disable a specific type of auto scaling. 2022-12-26DisableInstanceDasConfig
PolarDB-X 2.0HeatmapAn API operation is added to query partition access frequencies and data hotspots in a PolarDB-X 2.0 instance. 2022-12-22GetPartitionsHeatmap
ApsaraDB RDS for MySQL and PolarDB for MySQLPerformance insight (new version)The performance insight feature (new version) is supported. The new version aggregates statistics on SQL statements based on the Performance Schema feature provided by MySQL to help you evaluate database workloads and identify the root causes of database performance issues. The new version also provides solutions to improve the stability of your databases. 2022-12-14Performance insight (new version)

November 2022

Database engineFeatureDescriptionRelease dateReferences
ApsaraDB RDS for MySQL and PolarDB for MySQLAutomatic SQL optimizationAn API operation for the automatic SQL optimization feature is added. This operation can be used to collect statistics on automatic SQL optimization tasks within a specific period of time, such as the total number of tasks and maximum improvement. 2022-11-29GetInstanceSqlOptimizeStatistic

September 2022

Database engineFeatureDescriptionRelease dateReferences
ApsaraDB for RedisSession managementAn API operation for the session management feature is added. This operation can be used to query the data of the current session on an ApsaraDB for Redis instance. 2022-09-23GetRedisAllSession

August 2022

Database engineFeatureDescriptionRelease dateReferences
ApsaraDB RDS for MySQL, ApsaraDB RDS for SQL Server, ApsaraDB RDS for PostgreSQL, PolarDB-X 2.0, and PolarDB for MySQLSQL ExplorerAn API operation for the SQL Explorer feature is added. This operation can be used to query the SQL sample data in the SQL Explorer results of a database instance by SQL ID. A maximum of 20 entries can be returned. 2022-08-18GetFullRequestSampleByInstanceId
ApsaraDB RDS for MySQL and PolarDB for MySQLAutomatic SQL throttlingAPI operations for the automatic SQL throttling feature are added. 2022-08-03
ApsaraDB RDS for MySQLAutomatic tablespace fragment recyclingAPI operations for the automatic tablespace fragment recycling feature are added. 2022-08-03

July 2022

Database engineFeatureDescriptionRelease dateReferences
ApsaraDB RDS for MySQL and PolarDB for MySQLAutomatic SQL optimizationAn API operation for the automatic SQL optimization feature is added. This operation can be used to enable, modify, or disable the feature for multiple database instances at a time. 2022-07-14UpdateAutoSqlOptimizeStatus

May 2022

Database engineFeatureDescriptionRelease dateReferences
ApsaraDB RDS for PostgreSQLAutomatic storage scalingIf the used storage space of a database instance is greater than or equal to the specified threshold, DAS automatically scales up the database instance. 2022-05-30Automatic storage expansion
ApsaraDB for RedisSession managementAn API operation for the session management feature is added. This operation can be used to terminate all sessions of the specified database instance. 2022-05-26KillInstanceAllSession
ApsaraDB RDS for MySQL, PolarDB for MySQL, and PolarDB-X 2.0Intelligent stress testingAn API operation for the intelligent stress testing feature is added. This operation can be used to delete the metadata of released DBGateways in intelligent stress testing tasks. 2022-05-26DeleteStopGateway

April 2022

Database engineFeatureDescriptionRelease dateReferences
ApsaraDB RDS for MySQL, ApsaraDB RDS for PostgreSQL, ApsaraDB for Redis, and PolarDB for MySQLEvent centerThe 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. 2022-04-24Event center

March 2022

Database engineFeatureDescriptionRelease dateReferences
ApsaraDB RDS for MySQL and PolarDB for MySQLSQL 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 the 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.

2022-03-31SQL Review
ApsaraDB RDS for MySQL, PolarDB for MySQL, and ApsaraDB for RedisAuto scalingThe auto scaling feature is added. This feature allows DAS to provide suggestions for scaling database instances and automatically scales database instances if the specified thresholds are reached. 2022-03-29
ApsaraDB RDS for PostgreSQLSQL optimizationThe SQL optimization feature is supported by ApsaraDB RDS for PostgreSQL instances. 2022-03-03SQL optimization
ApsaraDB RDS for MySQL and PolarDB for MySQLSQL ExplorerAPI 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 2.0DAS Professional Edition managementAPI operations for managing DAS Professional Edition are added. 2022-03-02

January 2022

Database engineFeatureDescriptionRelease dateReferences
ApsaraDB RDS for MySQL, PolarDB for MySQL, and ApsaraDB RDS for PostgreSQLQuery governanceAPI operations for the query governance feature are added. 2022-01-30
ApsaraDB for RedisLatency insightLatency statistics for all commands and custom events are collected. These latency statistics are accurate to the microsecond.
Note The latency insight feature is currently available only to specific users but will be available to all users in the future.
2022-01-13Latency insight