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Andreas 'ads' Scherbaum: Florent Jardin

18. März 2024 - 15:00
PostgreSQL Person of the Week Interview with Florent Jardin: I am from Lille, the capital of Flanders in the north of France, and I have been living here since birth.

Pierre Ducroquet: Look ma, I wrote a new JIT compiler for PostgreSQL

18. März 2024 - 12:30

Sometimes, I don’t know why I do things. It’s one of these times. A few months ago, Python 3.13 got its JIT engine, built with a new JIT compiler construction methodology (copy-patch, cf. research paper). After reading the paper, I was sold and I just had to try it with PostgreSQL. And what a fun ride it’s been so far. This blog post will not cover everything, and I prefer other communication methods, but I would like to introduce pg-copyjit, the latest and shiniest way to destroy and segfault speed up your PostgreSQL server.

Hubert 'depesz' Lubaczewski: What the hell is transaction wraparound?

18. März 2024 - 11:59
Recently someone asked on Slack about what is transaction wraparound. Full answer is a bit too much for slack reply, but I can try to explain it in here. So, every row in PostgreSQL containst two hidden columns: xmin, and xmax. You can see them: =$ CREATE TABLE wrapit (a int4); CREATE TABLE   =$ … Continue reading "What the hell is transaction wraparound?"

Adrien Nayrat: Back from pgDay Paris 2024.

18. März 2024 - 10:39

I’m back from pgDay Paris. I really enjoyed this edition. I’d already come to the 2019 one, and I must say I wasn’t deceived. As a reminder, pgDay Paris is an international conference. Presentations are in English, attracting more English speakers and audiences.

Jonathan Katz: Distributed queries for pgvector

18. März 2024 - 1:00

The past few releases of pgvector have emphasized features that help to vertically scale, particularly around index build parallelism. Scaling vertically is convenient for many reasons, especially because it’s simpler to continue managing data that’s located within a single instance.

Henrietta Dombrovskaya: The Security Talk Maiden Voyage

16. März 2024 - 19:14

First of all here are the presentation slides:

Bertrand Drouvot: Postgres 17 highlight: Logical replication slots synchronization

16. März 2024 - 6:26

PostgreSQL 17 will normally (as there is always a risk of seeing something reverted in the beta phase) include this commit: Add a new slot sync worker to synchronize logical slots.

Sai Srirampur: Enterprise-grade Replication from Postgres to Azure Event Hubs

15. März 2024 - 21:54
At PeerDB, we are building a fast and a cost-effective way to replicate data from Postgres to Data Warehouses and Queues. Today we are releasing our Azure Event Hubs connector. With this, you get a fast, simple, and reliable way for Change Data Captu...

David Wheeler: Mini Summit One

15. März 2024 - 21:05

Great turnout and discussion for the first in a series of community talks and discussions on the postgres extension ecosystem leading up to the Extension Ecosystem Summit at on May 28. Thank you!

The talk, “State of the Extension Ecosystem”, was followed by 15 minutes or so of super interesting discussion. Here are the relevant links:

Greg Sabino Mullane: Examining Postgres Upgrades with pg_upgrade

15. März 2024 - 14:00

Postgres is an amazing database system, but it does come with a five-year life cycle. This means you need to perform a major upgrade of it at least every five years. Luckily, Postgres ships with the pg_upgrade program, which enables a quick and easy migration from one major version of Postgres to another.

semab tariq: PostgreSQL Internals Part 1: Understanding Database Cluster, Database and Tables

15. März 2024 - 8:55

Learn about database clusters, databases, and tables to optimize performance and unleash the full potential of PostgreSQL for your projects.

The post PostgreSQL Internals Part 1: Understanding Database Cluster, Database and Tables appeared first on Stormatics.

Shaun M. Thomas: PG Phriday: Redefining Postgres High Availability

15. März 2024 - 2:27
What is High Availability to Postgres? I’ve staked my career on the answer to that question since I first presented an HA stack to Postgres Open in 2012, and I still don’t feel like there’s an acceptable answer. No matter how the HA techniques have advanced since then, there’s always been a nagging suspicion in my mind that something is missing. But I’m here to say that a bit of research has uncovered an approach that many different Postgres cloud vendors appear to be converging upon.

Luca Ferrari: PgTraining Online Event 2024 (italian)

15. März 2024 - 1:00

We are back with another event!

PgTraining Online Event 2024 (italian)

PgTraining, the amazing italian professionals that spread the word about PostgreSQL and that I joined in the last years, is organizing another online event (webinar) on next 19th April 2024.
Following the success of the previous edition(s), we decided to provide another afternoon full of PostgreSQL talks, in the hope to improve the adoption of this great database.

Luca Ferrari: pgagroal command refactoring (again!) and a new contributor!

15. März 2024 - 1:00

Changes in pgagroal-cli and pgagroal-admin.

pgagroal command refactoring (again!) and a new contributor!

Last year I introduced a way in pgagroal-cli and pgagroal-admin to arrange commands in a more consistent and manageable way, deprecating some commands too.

Today, a new contributor to the project, Henrique de Carvalho, committed a patch that greatly improves the way commands are handled internally.

Umair Shahid: Understanding the PostgreSQL Query Planner to Improve Query Performance

14. März 2024 - 8:59

Learn how the PostgreSQL query planner estimates costs and leverages configuration parameters for efficient data retrieval and increased database performance.

The post Understanding the PostgreSQL Query Planner to Improve Query Performance appeared first on Stormatics.

Amit Kapila: A day in the life of a PostgreSQL engineer at Fujitsu – Introducing the blog series

14. März 2024 - 1:56

I am constantly impressed by the talent and commitment of the Fujitsu engineers that work hard to make PostgreSQL the best database in the market. So, I thought that more people should know these passionate professionals, and what a day in their life is like.

Elizabeth Garrett Christensen: Postgres Performance Boost: HOT Updates and Fill Factor

13. März 2024 - 14:00

There’s a pretty HOT performance trick in Postgres that doesn’t get a ton of attention. There’s a way for Postgres to only update the heap (the table), avoiding having to update all the indexes. That’s called a HOT update, HOT stands for heap only tuple.

Daniel Vérité: Using binary-sorted indexes

13. März 2024 - 11:49
In a previous post, I mentioned that Postgres databases often have text indexes sorted linguistically rather than bytewise, which is why they need to be reindexed on libc or ICU upgrades. In this post, let’s discuss how to use bytewise sorts, and what are the upsides and downsides of doing so.

Hans-Juergen Schoenig: Enforcing join orders in PostgreSQL

12. März 2024 - 16:20

After the pgconfeu23 in Prague – which has been an excellent event – I decided to share some of the things I presented as a blog post to maybe shed some light on some of those topics. One of those ideas presented was the way PostgreSQL handles joins and especially join orders. Internally the PostgreSQL does a good job to optimize queries but how does it really work?

Francesco Tisiot: How to use pgbench to test PostgreSQL® performance

12. März 2024 - 16:00

Testing a database performance is a must in every company. Despite everyone's needs beings slightly different, a good starting point for PostgreSQL® database is using pgbench: a tool shipped with the PostgreSQL installation that allows you to stress test a local or remote database.
This blog post showcases how to install (on a Mac) and use pgbench to create load on a remote PostgreSQL database on Aiven.