Sammlung von Newsfeeds
Gabriele Bartolini: CNPG Recipe 18 - Getting Started with pgvector on Kubernetes Using CloudNativePG
Learn how to set up a PostgreSQL cluster with the pgvector extension on Kubernetes using CloudNativePG—all in a fully declarative way. This article walks you through the process in just a few minutes, from cluster creation to extension installation.
Tomas Vondra: Benchmarking is hard, sometimes ...
I do a fair number of benchmarks, not only to validate patches, but also to find interesting (suspicious) stuff to improve. It’s an important part of my development workflow. And it’s fun ;-) But we’re dealing with complex systems (hardware, OS, DB, application), and that brings challenges. Every now and then I run into something that I don’t quite understand.
Michael Christofides: Approximate the p99 of a query with pg_stat_statements
Cover photo by Luca Upper
I recently saw a feature request for pg_stat_statements to be able to track percentile performance of queries, for example the p95 (95th percentile) or p99 (99th percentile).
Claire Giordano: Ultimate Guide to POSETTE: An Event for Postgres, 2025 edition
POSETTE: An Event for Postgres 2025 is back for its 4th year—free, virtual, and packed with deep expertise. No travel needed, just your laptop, internet, and curiosity.
This year’s 45 speakers are smart, capable Postgres practitioners—core contributors, performance experts, application developers, Azure engineers, extension maintainers—and their talks are as interesting as they are useful.
Boriss Mejias: Contributions for the week of 2025-05-19 (Week 21)
[PGDay Blumenau 2025] (https://pgdayblumenau.com.br/) took place May 24 in Blumenau, Brazil, organized by João Foltran and Gustavo Lemos, with Sara Kruger and Leonardo Corsini as volunteers.
Speakers:
Josef Machytka: Boldly Migrate to PostgreSQL – Introducing credativ-pg-migrator
Many companies these days are thinking about migrating their databases from legacy or proprietary system to PostgreSQL. The primary aim is to reduce costs, enhance capabilities, and ensure long-term sustainability. However, even just the idea of migrating to PostgreSQL can be overwhelming. Very often, knowledge about the legacy applications is limited or even lost. In some cases, vendor support is diminishing, and expert pools and community support are shrinking.
Ian Barwick: PgPedia Week, 2025-06-01
If you, like me, set up read access to the PostgreSQL Git repository many years ago, and have been wondering why it's been returning fatal: Could not read from remote repository errors for the past few days, it's because git:// protocol support has been deactivated and maybe withdrawn entirely (see pgsql-www thread git repo "https://" working but "git://" is not ).
Resolution is to convert it to https:// , e.g.:
git remote set-url origin https://git.postgresql.org/git/postgresql.git
Kaarel Moppel: Yes, Postgres can do session vars - but should you use them?
Laurenz Albe: The Fun of Open Source: Roman Numerals in PostgreSQL
© Laurenz Albe 2025
Recently, I wrote about the power of open source. Now, power is good and important, but open source software has other good sides as well. One of these aspects is fun. I will showcase that with the recently introduced support for converting Roman numerals to numbers.
Andreas 'ads' Scherbaum: Dilan Tek
Karen Jex: Postgres Partitioning Best Practices
Slides and transcript from my talk, "Postgres Partitioning Best Practices", at PyCon Italia in Bologna on 29 May 2025.
Thank you to everyone who came to listen, apologies to the people who were turned away because the room was full (who knew so many people would want to learn about Partitioning!), and thank you for all the questions, which have given me lots of ideas for improvements.
I'll share the recording as soon as it's available.
Sarah Conway: SCaLE 22x: Bringing the Open Source Community to Pasadena
The Southern California Linux Expo (SCaLE) 22x, recognized as being North America’s largest community-run open source and free software conference, took place at the Pasadena Convention Center from March 6-9, 2025. When I say community-run, I mean it—no corporate overlords dictating the agenda, just pure open source enthusiasm driving four days of technical discussions and collaboration.
Andreas Scherbaum: Postgres Extensions Day Montréal 2025
semab tariq: Understanding Split-Brain Scenarios in Highly Available PostgreSQL Clusters
High Availability (HA) refers to a system design approach that ensures a service remains accessible even in the event of hardware or software failures. In PostgreSQL, HA is typically implemented through replication, failover mechanisms, and clustering solutions to minimize downtime and ensure data consistency. Hence, HA is very important for your mission-critical applications.
Alexander Korotkov: Bridged Indexes in OrioleDB: architecture, internals & everyday use?
Since version beta10 OrioleDB supports building indexes other than B-tree. Bridged indexes are meant to support these indexes on OrioleDB tables.
David Wheeler: Postgres Extensions: Use PG_MODULE_MAGIC_EXT
A quick note for PostgreSQL extension maintainers: PostgreSQL 18 introduces a new macro: PG_MODULE_MAGIC_EXT. Use it to name and version your modules. Where your module .c file likely has:
PG_MODULE_MAGIC;Or:
#ifdef PG_MODULE_MAGIC PG_MODULE_MAGIC; #endifChange it to something like:
Andrew Atkinson: Tip: Put your Rails app on a SQL Query diet
Much of the time taken processing HTTP requests in web apps is processing SQL queries. To minimize that, we want to avoid unnecessary or duplicate queries, and generally perform as few queries as possible.
Think of the work that needs to happen for every query. The database engine parses it, creates a query execution plan, executes it, and then sends the response to the client.
When the response reaches the client, there’s even more work to do. The response is transformed into application objects in memory.
Brandur Leach: Don't mock the database: Data fixtures are parallel safe, and plenty fast
The API powering our Crunchy Bridge product is written in Go, a language that provides a good compromise between productivity and speed. We're able to keep good forward momentum on getting new features out the door, while maintaining an expected latency of low double digits of milliseconds for most API endpoints.
Ahmet Gedemenli: pgstream v0.6.0: Template transformers, observability, and performance improvements
Tomas Vondra: Advanced Patch Feedback Session (APFS) at pgconf.dev 2025
The pgconf.dev conference, a revamp of the original PGCon, happened about two weeks ago. It’s the main event for Postgres developers, and one of the things we’re trying is an Advanced Patch Feedback Session (APFS).
We first tried that last year in Vancouver, and then again in Montreal. But I realized many people attending the conference either are not aware of the event at all, or are not sure what it’s about. So let me explain, and share some reflections from this year.