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The registration for PGConf.EU 2025, which will take place on 21-24 October in Riga, is now open.

We have a limited number of tickets available for purchase with the discount code EARLYBIRD.

This year, the first day of training sessions has been replaced with a Community Events Day. This day has a more limited space, and can be booked as part of the conference registration process or added later, as long as seats last.

With First Steps with Logical Replication we set up a basic working replication between a publisher and a subscriber and were introduced to the fundamental concepts. In this article, we're going to expand on the practical aspects of logical replication operational management, monitoring, and dive deep into the foundations of logical decoding.

On June, 9th, Andrzej Nowicki held a talk about “From Queries to Pints: Building a Beer Recommendation System with pgvector” at the Malmö PostgreSQL User Group.

On June, 3rd the 5. PostgreSQL User Group NRW MeetUp took place in Germany.

It’s been a while since SQL:2023 was published, and work on the SQL standard continues. Nowadays, everyone in the database field wants vectors, and SQL now has them, too.

(I’m using the term “SQL:202y” for “the next SQL standard after SQL:2023”. I took this naming convention from the C standard, but it’s not an official term for the SQL standard. The current schedule suggests a new release in 2028, but we’ll see.)

PostgreSQL Person of the Week Interview with Suraj Kharage: My name is Suraj Kharage and I am from Pune, India. I have over 10 years of experience with the Postgres database and got introduced to Postgres during my first professional experience at NTT DATA back in 2014. I am an internal database developer working with EDB and mostly contribute to EDB’s proprietary product EDB Advanced server (EPAS).

PGDay UK 2025 will be held in London, England, on Tuesday, September 9, 2025 at the Cavendish Conference Centre.

It features a full day with a track of PostgreSQL presentations from global PostgreSQL experts. It will cover a wide range of topics of interest.

Registration has now opened. Seats are limited so we recommend that you register early if you are interested! There are 20 Early bird discounted tickets available until the 31th of July 2025; grab yours before they run out or the campaign ends.

Learn how pgstream v0.7.1 transforms JSON data, improves snapshot experience with progress tracking and wildcard support.

When designing a highly available PostgreSQL cluster, two popular tools often come into the conversation: Pgpool-II and Patroni. Both are widely used in production environments, offer solid performance, and aim to improve resilience and reduce downtime; however, they take different approaches to achieving this goal.

In a recent Hacker News discussion, there was some confusion about the differences between OrioleDB and Neon. Both look alike at first glance. Both promise a "next‑gen Postgres". Both have support for cloud‑native storage.

This post explains how the two projects differ in practice. And importantly, OrioleDB is more than an undo log for PostgreSQL.

Next month, I'll be hosting 2 or 3 discussions of Tomas Vondra's talk, Fast-path locking improvements in PG18, given at 2025.pgconf.dev (talk description here). If you're interested in joining us, please sign up using this form and I will send you an invite to one of the sessions.

PostgreSQL active-active replication, do you really need it? Before we start, what is active-active?

Active-active, also referred to as multi-primary, is a setup where multiple database nodes can accept writes at the same time and propagate those changes to the others. In comparison, regular streaming replication in PostgreSQL allows only one node (the primary) to accept writes. All other nodes (replicas) are read-only and follow changes.

In an active-active setup:

CloudNativePG 1.26 introduces enhanced support for Kubernetes startup probes, giving users finer control over how and when PostgreSQL instances are marked as “started.” This article explores the new capabilities, including both basic and advanced configuration modes, and explains the different probe strategies—such as pg_isready, SQL query, and streaming for replicas. It provides practical guidance for improving the reliability of high-availability Postgres clusters by aligning startup conditions with actual database readiness.

© Laurenz Albe 2025

Everybody wants good performance. When it comes to the execution of SQL statements, accurate optimizer statistics are key. With the upcoming v18 release, PostgreSQL will preserve the optimizer statistics during an upgrade with dump/restore or pg_upgrade (see commit 1fd1bd8710 and following). With the beta testing season for PostgreSQL v18 opened, it is time to get acquainted with the new feature.

© Laurenz Albe 2025

Recently, while investigating a deadlock for a customer, I was again reminded how harmful SELECT FOR UPDATE can be for database concurrency. This is nothing new, but I find that many people don't know about the PostgreSQL row lock modes. So here I'll write up a detailed explanation to let you know when to avoid SELECT FOR UPDATE.

Working with timezones can sometimes lead to confusing results, especially when combining Django's ORM, raw SQL for performance (like in PostgreSQL materialized views), and specific timezone requirements. I recently had an issue while aggregating traffic stop data by year, where all yearly calculations needed to reflect the 'America/New_York' (EST/EDT) timezone, even though our original data contained timestamp with time zone fields.

PostgreSQL Person of the Week Interview with Nisha Moond: Hi! I’m Nisha Moond, based in Bangalore, India - the tech hub. I have over 8+ years of experience in databases. I started my journey tweaking Oracle’s query optimizer and now contribute to the PostgreSQL OSS team at Fujitsu.

PostgreSQL links Blogs, podcasts, newsletters etc. Scaling Postgres 370 - New Scale Out Options (2025-06-15) Postgres Weekly Issue 603 (2025-06-12) Announcements PostgreSQL JDBC 42.7.7 Security update for CVE-2025-49146 (2025-06-13) powa-archivist 5.0.3 is out! (2025-06-11) pg_dumpbinary v2.20 released (2025-06-11) pgtt v4.3 released (2025-06-09) Pgpool-II 4.6.2 released.

BLOBs In PostgreSQL Previous Blog Post

I have already published a blog post about PostgreSQL blobs.

But due to someone posting to get help about another implementation on the PostgreSQL Chat Telegram group about a very unusual method to store blobs, I thought, that should now also be covered.

I did not cover that method, because it is one of the worst ideas to handle blobs inside PostgreSQL.