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Autovacuum's ANALYZE threshold formula combines a fixed floor and a percentage of table size.

If you have ever run pg_ctl stop -m fast on a primary and watched it hang well past wal_sender_shutdown_timeout, you have met a bug that has been sitting in walsender.c for years. As of commit c0b24b3 on master (Fujii Masao, May 1, reported by Andres Freund via FreeBSD CI), it is fixed. PostgreSQ…

Disable autovacuum and PostgreSQL will cheerfully show you every failure mode in its playbook, from table bloat to transaction ID wraparound.

PostgreSQL 19 is an admin-and-monitoring release with 212 items: worker-managed AIO, smarter planner joins, faster diagnostics, and a C11 requirement.

PGX is stepping in to maintain pgBackRest as pgxbackup, ensuring critical fixes and PostgreSQL compatibility for the industry-standard backup tool.

There's been a kind of persistent myth regarding Postgres since I first started using it seriously over 20 years ago: "Postgres doesn't support user variables." This hasn't really been true since version 8.0 way back in 2005. Part of this stems from the fact it doesn't do things the same way as other common database engines.Why don't we spend a little time exploring the functionality that time forgot?

Continuing my review of the upcoming program for PG DATA 2026, started here.

A connection is not free just because it has not logged in yet. From the moment the TCP handshake completes, the would-be client is holding a backend slot counted against max_connections, and it will hold that slot until one of two things happens: it finishes the authentication protocol, or authe…

pgvector is excellent. It is also, at large scale, expensive — because the HNSW index it gives you wants to live in memory to be fast, and “wants to live in memory” stops being a casual statement somewhere around fifty million 1536-dimensional embeddings. At which point you reach for …

An Event for Postgres (pronounced /Pō-zet/, and formerly called Citus Con) is a free and virtual developer event. The name POSETTE stands for Postgres Open Source Ecosystem Talks Training & Education.

Features create capability. Calm operations create trust.

Most platform failures do not begin because one feature is missing. They usually begin when teams become afraid to change the systems that run the business.

I just gave a new presentation at PGDay Armenia titled Building an MCP Server Using Postgres. The talk is a follow-up to my Databases in the AI Trenches talk, and explores how MCP allows functionality beyond LLMs and RAG alone. It includes MCP demos of a radiation detector and pretzel bakery.

The php.internals vote closed on April 4, and PHP 9.0 will ship under the 3-clause BSD license. The RFC, driven by Ben Ramsey, replaces both the PHP License v3.01 and the Zend Engine License v2.0 with a single, OSI-recognized, FSF-recognized, GPL-compatible permissive license that has been sittin…

pgBackRest is now unmaintained. If you were running pgBackRest in production — and a lot of people were running pgBackRest in production — what do you actually do now? The honest answer has three parts. First: the world has not ended. pgBackRest still works. The git repository still exists, the b…

How contribution decisions shape the sustainability of the PostgreSQL ecosystem

Last week at PGConf.DE, I gave a talk titled Not Just Altruism: Selling PostgreSQL Contributions to Your Employer.

Boring is an investment. Exciting is a bill.

The calmest PostgreSQL deployments in production share one trait. They are boring. Pages stay quiet. Dashboards stay green. The on-call engineer reads a book on Tuesday night. And the people running those databases will tell you, plainly, that boring is the achievement.

If you are using PostgreSQL in any capacity very likely this week has started for you with a bang. pgBackRest, one of the most known tools for PostgreSQL, praised for the scalable and reliable way to do backups has announced that the project is currently archived.

If you are using PostgreSQL in any capacity very likely this week has started for you with a bang. pgBackRest, one of the most known tools for PostgreSQL, praised for the scalable and reliable way to do backups has announced that the project is currently archived.

Part 3 of the Semantic Caching in PostgreSQL series. Part 1 covers the fundamentals of  — how it stores query embeddings, runs cosine similarity searches via pgvector, and returns cached LLM results without a round-trip to your model provider.

I flew 12 hours to Pasadena, survived the sunshine, and came back with a vlog (or pavlog? 🙂) Worth it? Absolutely.

SCALE 23x is one of those events where the hallway conversations are as valuable as the talks. I grabbed my camera and tried to capture some of that energy. Featuring Bruce Momjian, Elizabeth Christensen, Mark Wong, and Gabrielle Roth — people who have been building this community for years.