Extensions

A conceptual tour of how PostgreSQL's extension mechanism actually works, from control files and versioning to shared_preload_libraries and trust boundaries.

Learn how to install, version, and manage PostgreSQL extensions. Discover how to use CREATE EXTENSION and shared_preload_libraries.

Learn the difference between trusted and untrusted PostgreSQL extensions, how to check their trust level, and manage installation permissions.

Learn to upgrade PostgreSQL extensions using ALTER EXTENSION UPDATE, including steps for checking versions, applying upgrades, and verifying changes.

Learn best practices for PostgreSQL extensions, covering governance, installation, layout, and upgrade strategies to maintain a secure and stable database.

A single-page roundup of every highlight bullet from the 6 pages in the Extensions section, grouped by source page so you can scan all 35 takeaways without opening each article individually.