2026

Category

Feature

Description

References

New features

Vector engine

• Nova vector index now supports the sq8vector native type.

• Nova now supports the score filter feature.

N/A

Optimizer

• ORCA supports filter condition reordering, and the planner sorting algorithm is optimized.

• Single-column interval merging optimization for filter conditions is added (ORCA and planner).

N/A

Real-time materialized view

Real-time materialized views now support CTE.

N/A

Bug fixes

Stability

• Fixed the NULL handling issue in the fixnumeric stddev_samp function implementation.

• Fixed the issue where executing ALTER AM within a transaction in the new version reports an error.

N/A

PostGIS

Fixed the issue where executing ST_GeomFromWKB(bytea, int) in PostGIS 3.3.2 reports an Unknown WKB type error.

N/A

Long-term memory

Fixed the issue where delete_all in the adbpg_llm_memory plugin recreates the memory table.

N/A

Category

Feature

Description

References

New feature

Real-time materialized view

Real-time materialized views now support CTE.

N/A

Bug fixes

Optimizer

• Fixed the issue where the planner optimizer may miss the CTE producer when a shared CTE is included in a subplan.

• Fixed the coredump issue caused by two-stage window aggregation.

N/A

PostGIS

Fixed the issue where executing ST_GeomFromWKB(bytea, int) in PostGIS 3.3.2 reports an Unknown WKB type error.

N/A

Long-term memory

Fixed the issue where delete_all in the adbpg_llm_memory plugin recreates the memory table.

N/A

Category

Feature

Description

References

New features

vector engine

• Supports the RaBitQ quantization algorithm based on the Novam index.

• Supports Principal Component Analysis (PCA) for dimensionality reduction.

• Supports half-precision (FP16) storage for Nova indexes.

• Optimizes multiple performance issues in the Novam index.

• Adds a write back-pressure mechanism for Nova indexes.

None

monitoring and logging

• Adds parameter information to logs for interrupted statements to simplify issue diagnosis.

• Adds monitoring metrics for query and write response times (RTs) and failure rates.

None

Enhancements

vector engine

• Improves the performance of table lookups for Nova indexes, which reduces end-to-end query latency.

• Optimizes the user-defined function (UDF) that displays delta information for Nova indexes, providing clearer index status details.

None

GraphRAG

Upgrades the GraphRAG component to version 1.6.

None

Bug fixes

vector engine

• Fixed an issue where the graph quality of the Nova index degraded, which improved the search recall rate.

• Fixed a core dump issue caused by the relation cache (relcache) being released after a write-triggered asynchronous analyze or a DDL operation.

• Fixed a memory core dump issue triggered during Nova index searches.

• Fixed a use-after-free crash that occurred when creating Nova indexes multiple times within the same connection.

None

storage engine

Fixed an input key out of range error in the user-defined storage (ussr) engine.

None

scaling

• Fixed an issue where an unexpected context id... error could occur during transaction commits after a single-replica instance is scaled out.

• Fixed an issue that prevented segment scale-in for AnalyticDB for PostgreSQL instances in mirror-independent deployment mode.

None

optimizer

• Fixed an issue in EXPLAIN ANALYZE where init_tuplestore_state was incorrectly accessed in a ShareInputScan operation within an InitPlan.

• Fixed a core dump in the ORCA optimizer caused by a conversion error when handling queries with internal Common Table Expressions (CTEs).

None

high availability

Fixed an issue where master node queries would hang and cause 100% CPU usage when a segment machine was down.

None

executor

Fixed an issue where hitting the disk spill file limit during execution left a lightweight lock, preventing other processes from acquiring it.

None

Category

Feature

Description

References

Enhancements

GraphRAG

Upgrades the GraphRAG component to version 1.5.

None

Bug fixes

executor

Fixed an issue where hitting the disk spill file limit during execution left a lightweight lock, preventing other processes from acquiring it.

None

high availability

Fixed an issue where master node queries would hang and cause 100% CPU usage when a segment machine was down.

None

CDC

Fixed an issue where segment repair caused slot loss when a standby instance was down.

None

pgsearch

Fixed an issue where a dbsize error on a partitioned root table prevented Data Management Service (DMS) from opening the corresponding schema.

None

optimizer

Fixed an error in Multi-Range Table Function (MultiRTF) caused by segment inconsistencies when an append operation was used with multiple one-time filters.

None

real-time materialized view

Fixed an index rebuild issue that occurred during a readable refresh of a real-time materialized view.

None

storage engine

• Fixed an issue that caused unnecessary rewrites of Append-Optimized (AO) tables when non-storage reloptions were modified.

• Fixed an input key out of range error in the user-defined storage (ussr) engine.

None

Category

Feature

Description

References

Bug fixes

Security fix

Fixed the CVE-2026-2006 vulnerability by improving how the SUBSTRING function handles multi-byte characters to prevent buffer overflows and errors from invalid characters.

None

Category

Feature

Description

References

New features

long-term memory

Adds an infer interface for memory import, allowing you to import data directly without extraction by a large language model (LLM).

None

GraphRAG

Supports importing custom chunk and embedding values.

None

Enhancements

high availability

• Standby instances are now marked as down more quickly to prevent user write transactions from hanging.

• Adds support for re-entrant incremental repairs.

None

Bug fixes

CDC

Fixed stability issues with CDC.

None

executor

Fixed stability issues with the executor.

None

connection pool

Fixed an issue where pgbouncer would not restart after an upgrade.

None

storage engine

Fixed stability issues with the beam storage engine.

None

Vector retrieval

Fixed stability issues with pgsearch.

None

scaling

Fixed an access error after a scale-in operation, which was caused by inconsistent metadata for master-only tables used by multiple plug-ins across different nodes.

None

real-time materialized view

Fixed stability issues with real-time materialized views.

None

optimizer

Fixed stability issues with the optimizer.

None

Category

Feature

Description

References

New features

vector engine

Supports configuring the number of flush workers and the total available CPU cores.

None

Bug fixes

high availability

• Fixed an issue that caused prolonged service interruptions when a standby instance went down.

• Fixed issues related to re-entrant incremental repairs.

None

optimizer

Fixed multiple stability issues with the ORCA optimizer.

None

CDC

Fixed multiple stability issues with CDC.

None

real-time materialized view

Fixed multiple stability issues with real-time materialized views. For example, fixed an issue where the rebuild step could not be skipped when you use REPLACE with an identical definition that specified column names.

None

connection pool

Fixed an issue where pgbouncer was incorrectly launched during an upgrade.

None

Category

Feature

Description

References

Enhancements

storage engine

Supports modifying the default access method (am) for temporary tables.

None

Category

Feature

Description

References

New features

vector engine

Major update: The new Nova vector engine is now generally available. This feature is not supported on ARM-based platforms.

Create a Nova vector index

executor

Major update: Upgraded the laser parallel executor.

None

logical backup

Supports Database Backup Service (DBS) storage pool interfaces.

None

long-term memory

The long-term memory feature now supports automatic memory classification and custom classification labels. It also includes an infer interface that allows you to import memory directly without extraction by an LLM.

Advanced features of long-term memory for AnalyticDB for PostgreSQL

Security

Introduced multiple security enhancements.

None

tiered storage

The access paths for cold storage, OSS Foreign Data Wrapper (FDW), and OSS EXT now support HTTPS.

None

Enhancements

long-term memory

Improved how historical operations are saved in long-term memory and added a new interface to view historical records.

None

GraphRAG

Supports adjusting the connection pool size.

None

Bug fixes

pgsearch

Fixed multiple stability issues with pgsearch.

None

scaling

Fixed a core dump issue triggered by the expand table command for a real-time materialized view.

None

CDC

Fixed multiple stability issues with CDC.

None

Version upgrade

Fixed an issue where a failed version upgrade caused an instance to enter read-only mode.

None

storage engine

Fixed multiple stability issues with the beam storage engine.

None

real-time materialized view

Fixed multiple stability issues with real-time materialized views.

None

Vacuum

Fixed multiple stability issues related to the VACUUM process.

None

optimizer

Fixed multiple stability issues with the ORCA optimizer.

None

high availability

Fixed multiple stability issues related to high availability.

None