SELECT DISTINCT queries benefit from incremental sorts, resulting in better performance. Enhanced query execution capabilities allow for parallel execution of FULL and RIGHT JOINs, as well as the string_agg and array_agg aggregate functions. PostgreSQL 16 doesn’t hold back when it comes to performance improvements. Other logical replication enhancements include initial table synchronization in binary format, replication without a primary key, and improved security by requiring subscription owners to have SET ROLE permissions on all tables in the replication set or be a superuser. ![]() The new pg_log_standby_snapshot() function makes this possible. The primary might have a replica in another region, which can send data to a third system in that region rather than replicating the data twice from one region to another. Along with helping reduce the load on the primary, which receives all the writes in the cluster, easier geo-distribution architectures are now possible. With Postgres 16, logical replication from physical replication standbys is now supported. This release not only includes necessary under-the-hood improvements for performance and reliability but also the enablement of new and more complex architectures. There have been enhancements to logical replication in every Postgres release since, and Postgres 16 is no different. Logical replication has been a flexible solution for data replication and distribution since it was first included with PostgreSQL 10 nearly six years ago, enabling various use cases. This change not only enhances security but also simplifies the overall user management experience. This shift empowers administrators to define more specific roles and assign privileges accordingly, streamlining the management of permissions. PostgreSQL 16 addresses this issue by allowing users to grant privileges in roles only if they possess the ADMIN OPTION for those roles. Previous versions often required a superuser account for many administrative tasks, which could be impractical in larger organizations with multiple administrators. One of the standout changes in PostgreSQL 16 is the overhaul of privilege administration. Let’s take a look at a few of the highlights. ![]() With PostgreSQL 16 comes a plethora of new features and enhancements. With this latest update, Postgres sets new standards for database management, data replication, system monitoring, and performance optimization, marking a significant milestone for the community, developers, and EDB as the leading contributor to PostgreSQL code. Today, the PostgreSQL Global Development Group shared the release of PostgreSQL 16.
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