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Raising autovacuum_max_workers above 3 won't speed up vacuum unless you also increase autovacuum_vacuum_cost_limit—the I/O budget is divided among workers, not…

The recent archival of pgBackRest has created an important and necessary conversation in the PostgreSQL community, not only about one project, one maintainer, or one repository, but about how we think about open-source software once it becomes part of critical enterprise infrastructure.

PostgreSQL 19 finally makes logical replication and physical standbys work together safely.

This post was originally published on the Microsoft Tech Community Blog.

Introduction

At small scale, using Postgres as a job queue is totally fine, and I’d even say it’s the right call. Fewer moving parts, one less system to manage, ACID guarantees on your jobs. What’s not to love?

PgQue's zero-mutation queue algorithm eliminates the "queue death spiral" by replacing UPDATE-and-DELETE with snapshot diffing.

PostgreSQL wraps transaction IDs every two billion transactions—autovacuum_freeze_max_age stops your database from crashing when it does.

After Part 1 and Part 2, here comes the Friday schedule! I hope that on the second day of the conference, I will have more time to attend different talks and actually stay and listen!

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…