PostgreSQL 10: What's New, Release History & EOL Status

What is New in PostgreSQL 10

PostgreSQL 10 is a landmark release that introduced several groundbreaking features, most notably native logical replication and major improvements to declarative partitioning. This version also brought significant enhancements in performance, security, and ease of management, making it one of the most impactful releases in PostgreSQL history.

It laid the foundation for modern PostgreSQL architectures with better scalability and simpler high-availability setups.

Major New Features

PostgreSQL 10 introduced several key capabilities:

• Logical Replication - A built-in, flexible way to replicate individual tables or databases to other PostgreSQL instances
• Declarative Partitioning - A much simpler and more powerful way to create and manage partitioned tables using PARTITION BY
• Native support for parallel query execution improvements
• Improved handling of large tables and high-concurrency workloads

Performance Enhancements

PostgreSQL 10 delivered important performance gains in several areas:

• Parallel index creation for B-tree indexes
• Improved parallel sequential scans and aggregation
• Better query planning for partitioned tables
• More efficient handling of large joins and sorts
• Enhanced vacuum performance on large tables

Declarative Partitioning

The new declarative partitioning system allows administrators to define partitions using simple syntax:

CREATE TABLE measurement (
    ...
) PARTITION BY RANGE (logdate);

This replaced the older inheritance-based partitioning method and made partition management much more straightforward and efficient.

Logical Replication

Logical replication was one of the biggest additions in PostgreSQL 10. It allows selective replication of tables using a publish/subscribe model. Key benefits include:

• Ability to replicate between different major versions
• More flexible data distribution
• Easier setup for reporting and analytics servers
• Better support for zero-downtime upgrades

Security and Administration

Security and manageability were also improved:

• New predefined roles for monitoring (pg_monitor)
• Improved password management and authentication options
• Better visibility into system activity through new views
• Enhanced logging capabilities

Other Notable Changes

Migration Considerations

When upgrading to PostgreSQL 10, consider the following:

• Plan to migrate existing inheritance-based partitions to the new declarative system
• Test logical replication thoroughly if you plan to use it for data distribution
• Review query performance as the new partitioning and parallelism features may change execution plans
• Update monitoring scripts to take advantage of new system roles and views

PostgreSQL 10 marked a major milestone in the evolution of PostgreSQL, introducing foundational features that continue to shape how modern PostgreSQL systems are designed and operated today.