2025-PolarDB(PolarDB)-阿里云帮助中心

This topic provides release notes for the minor engine versions of PolarDB for PostgreSQL.

Note

You can view the minor engine version in the console or by running the SHOW polardb_version; command.
The minor engine version for PolarDB for PostgreSQL will be updated to a 6-digit format on February 26, 2025. For more information, see Change details.

2.0.11.15.47.0 (November 2025)

Description

Optimized the synchronous DDL execution mechanism by deferring the wait point from execution time to transaction commit time.

Description

Fixed an issue where slab memory continuously increased during the two-phase commit (2PC) transaction replay.

Description

Fixed an issue where Parallel Worker processes could not exit after receiving a process termination signal (SIGTERM).

Fixed an issue where concurrency during the commit and creation of two-phase commit (2PC) transactions prevented the deletion of 2PC files.

Description	References
Optimized the transaction ID wraparound mechanism for VACUUM operations to prevent data from becoming unavailable due to transaction ID (XID) exhaustion.	Transaction ID wraparound

Description	References
You can now modify the `intervalstyle` parameter in the console. This parameter controls the output format of the `interval` data type.	Set cluster parameters
You can now modify the `wal_sender_timeout` parameter at the session level. This parameter controls the timeout for WAL stream replication.	Set cluster parameters
Introduced subquery pushdown, which improves the execution efficiency of SQL statements that contain IN or ANY clauses.	Subquery pushdown
Introduced the cost-based query transformation (CBQT) framework. This feature significantly improves the execution efficiency of certain complex queries by transforming them based on cost analysis.	Cost-based query transformation (CBQT)