SeaQL Saturday 2026
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The Postgres Meetup group of the Netherlands
We are happy to invite you to the Spring Edition of the PostgreSQL User Group NL Meetup on Thursday April 9 in Amsterdam.
This meetup brings you two exciting sessions from two international renowned PostgreSQL experts , one from Luigi Nardi on Workload Fingerprints: a data cleaning pipeline for effective AI performance tuning, and another Dmitry Fomin on The Pulse of Postgres: Implementing Wait-Based Observability at Scale.
As usual we have some space in the program reserved for anyone who wants to do a lightning talk. Please contact us or through a personal message on meetup.com.
This time around the meetup is supported by VandeBron Energy. Thank you for supporting the PostgreSQL community with the venue and hospitality!
We hope to meet many of you at the meetup as this is a moment where PostgreSQL users can connect, share knowledge, and discuss the latest developments in the PostgreSQL ecosystem.
We look forward to a great meetup!
Feike Steenbergen
Gerard Zuidweg
Meetup program
17:30 – 18:25 Welcome, Beer & Bites
18:25 – 18:30 Opening by Gerard Zuidweg, OptimaData
18:30 – 19:10 Luigi Nardi – Workload Fingerprints: a data cleaning pipeline for effective AI performance tuning
Break
19:15 – 19:55 Dmitry Fomin – The Pulse of Postgres: Implementing Wait-Based Observability at Scale
19:55 – 20:00 Lightning talks
20:00 – 20:30 Wrap up and drinks
Talks
Workload Fingerprints: a data cleaning pipeline for effective AI performance tuning
By Dr. Luigi Nardi – Founder and CEO of DBtune
PostgreSQL performance measurement is complex; metrics like average query runtime often hide significant variability, particularly when analyzing short time windows or different times of the day. This talk explores the limitations of traditional performance indicators and introduces a novel workload fingerprint method designed for more reliable performance assessment, particularly in live production environments.
This fingerprint approach provides a granular view of database activity, aiding both human database administrators and AI-powered tuning systems in understanding and effectively addressing performance tuning.
Attendees will gain insights into effective tuning strategies and monitoring techniques, engaging in discussions that span both the technical implementation and philosophical considerations of database optimization, ensuring a comprehensive understanding of the challenges and solutions in maximizing PostgreSQL efficiency in the AI era.
About
Dr. Luigi Nardi is the founder and CEO of DBtune, a leading company driving advancements in AI, database systems, and cloud computing.
The Pulse of Postgres: Implementing Wait-Based Observability at Scale
By Dmitry Fomin – DBA at Adyen
Modern observability is shifting from “What is happening?” to “What is my database waiting for?” Wait event analysis is the most direct path to understanding system contention and resource saturation.
In this presentation, we explore the architecture of the Postgres wait event subsystem – sampling and tracing. We will discuss why wait events are the ultimate “ground truth” for database health and how to build a monitoring stack that captures these transient events.
Attendees will learn how to differentiate between normal background noise and critical contention, ensuring that your scaling decisions are backed by hard evidence rather than intuition.
About
Dmitry is a Postgres DBA at Adyen, where he specialises in Postgres troubleshooting and performance. With over 10 years of hands-on experience with PostgreSQL and 20+ with databases in total, Dmitry has a deep understanding of Postgres internals, performance tuning on observability.
Lightning Talks
What are Lightning Talks?
A Lightning talk is a short presentation given at a conference or meetup. Unlike other presentations, Lightning Talks last only a few minutes and several are usually given in a short time slot by different speakers. Everyone has the opportunity to give their views, share a short topic or ask for input from the audience in the span of 1 slot.
During the PostgreSQL Usergroup NL meetups, through the Lightning Talks, we provide a low-threshold stage for participants to share their experience and knowledge.
Would you like to submit a Lighting Talk, do you have a short topic, would you like to share something within the PostgreSQL domain or what it touches? Send us an email with your suggestion, your topic, or just your name requesting a time slot and we will schedule you into the Lightning Talks! You can also put your name on the list on the night itself!
Location
De meetup is at the office of VandeBron in Amsterdam:
The address is:
Grote Bickersstraat 2a
1013 KS Amsterdam
Nederland
How to get there:
By car:
A10 afrit s114 heading Piet Hein tunnel and Ruyterkade, parking Parkbee Squash City Amsterdam (around the corner).
Public transport:
Busstop Buiten Oranjestraat or Buiten Brouwersstraat. (busses 18, 21, 22)
Signup for this Meetup
Feel free to register for this Dutch PostgreSQL community meetup. Thanks to the organization by OptimaData and the hospitality of VandeBron for this occasion, this is a free event that includes food and drinks. You can register via the link above on our meetup page on meetup.com. If you don’t have a meetup.com account yet or are not yet a member of the PostgreSQL Usergroup NL, sign up for free and register for the meetup.