Hacking Workshop for October 2026

October's hacking workshop will cover my talk, pg_plan_advice: Plan Stability and User Planner Control for PostgreSQL?. If you're interesting in joining us, please sign up using this form and I will send you an invite to one of the sessions.

Hacking Workshop for September 2026

I'm pleased to announce that David Rowley will be joining us in September to discuss his talk Optimizing code in the hot path; with examples from tuple deformation. If you're interesting in joining us, please sign up using this form and I will send you an invite to one of the sessions. As always, thanks to David for agreeing to join the sessions.

Hacking Workshop for June/July 2026

I was hoping to usual resume the monthly cadence of hacking workshops in June, but it didn't quite happen, largely due to being a little exhausted after pgconf.dev. But, I'm pleased to announce that Melanie Plageman will be joining us to discuss her talk Additional IO Observability in Postgres with pg_stat_io. If you're interesting in joining us, please sign up using this form and I will send you an invite to one of the sessions. As always, thanks to Melanie for joining us.

Hacking Workshop for April/May 2026

I'm planning to hold a single hacking workshop for April and May combined, covering Masahiko Sawada's talk, Breaking away from FREEZE and Wraparound, given at PGCon 2022. 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. Thanks to Sawada-san for agreeing to join us.

Hacking Workshop for March 2026

For next month's hacking workshop, I'm scheduling 2 or 3 discussions of Tomas Vondra's talk, Performance Archaeology, given at 2024.PGConf.EU. 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. Thanks as always to Tomas for agreeing to attend the sessions.

Hacking Workshop for February 2026

For next month, I'm scheduling 2 or 3 discussions of Amit Langote's talk, Hacking Postgres Executor For Performance, given at PGConf India 2025. 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. Thanks to Amit for agreeing to attend the sessions.

The Future of the PostgreSQL Hacking Workshop

The PostgreSQL Hacking Workshop will be taking a well-earned Christmas break in December of 2025. The future of the workshop is a little bit unclear, because I'm continuing to have a bit of trouble finding enough good talks online to justify doing one per month: the best source of talks for the event is pgconf.dev, but not all of those talks are about hacking on PostgreSQL, and not all of those that are about hacking are equally interesting to potential attendees. Also, we've already eaten through much of the backlog of older hacking-related talks that are posted online. Many conferences have few hacking-related talks, or just don't post any videos (which are expensive and time-consuming to produce).

Hacking Workshop for November 2025

For next month, I'm scheduling 2 or 3 discussions of Matthias van de Meent's talk, Improving scalability; Reducing overhead in shared memory, 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. Thanks to Matthias for agreeing to attend the sessions, and to Melanie Plageman for agreeing to serve as host. (I normally host, but am taking a month off. We will also skip December due to the end-of-year holidays.)

Hacking Workshop for October 2025

Next month, I'll be hosting 2 or 3 discussions of Thomas Munro's talk, Investigating Multithreaded PostgreSQL, 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. Thanks to Thomas for agreeing to attend the sessions. As usual, nobody is too inexperienced to join us, and nobody is too experienced. We have everyone from total newcomers to interested committers.

Hacking Workshop for September 2025

Next month, I'll be hosting 2 or 3 discussions of David Rowley's talk, Writing fast C code for a modern CPU (and applying it to PostgreSQL), 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. Thanks to David for agreeing to attend the sessions. As usual, nobody is too inexperienced to join us, and nobody is too experienced. We have everyone from total newcomers to interested committers.

One Year of Hacking Workshops

I started running PostgreSQL Hacking Workshops just about one year ago, and I've run one each month, except for May, when we had pgconf.dev. Signups are now open for August, if you're interested in joining us for a discussion of Peter Geoghan's talk on Multidimensional search strategies for composite B-Tree indexes, but I'd also like to take a few minutes to summarize where we are after one year of hacking workshops, both the good and the maybe not quite as good. So here goes.

PostgreSQL Hacking + Patch Review Workshops for July 2025

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. Thanks to Tomas for agreeing to attend the sessions. We'll have plenty more 2025.pgconf.dev talks on the schedule in future months, as well! As usual, nobody is too inexperienced to join us, and nobody is too experienced. We have everyone from total newcomers to interested committers.

Hacking Workshop for June 2025

Next month, I'll be hosting 2 or 3 discussions of Masahiko Sawada's talk, PostgreSQL meets ART - Using Adaptive Radix Tree to speed up vacuuming, from 2024.pgconf.dev. 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.

Mentoring Applications and Hacking Workshop for April 2025

Here are a few mentoring-related updates.

PostgreSQL Hacking + Patch Review Workshops - March 2025

This month, I'm excited to tell you about the returning of the PostgreSQL Hacking Workshop along with a new Patch Review Workshop organized by Paul Jungwirth.

PostgreSQL Hacking Workshop - February 2025

Please considering joining us next month (February 2025) for a discussion of Heikki Linnakangas's talk on The Wire Protocol, from PGCONF.EU 2024. For those not familiar with the concept, this hacking workshop is basically a virtual meetup: you watch the talk, and then you sign up to participate in one of two or three Zoom meetings where we discuss the talk. Usually, we're able to get the original author of the talk to join us; thanks to Heikki for agreeing to join us this month.

PostgreSQL Hacking Workshop - January 2025

Next month, I'l be hosting 2 or 3 discussions of Andres Freund's talk, NUMA vs PostgreSQL, given at PGConf.EU 2024. You can sign up using this form. I anticipate that both Andres and I will be present for the discussions, and I'd like to thank Andres and all of the other presenters who have made time to join the discussions and answer questions for their time (so far: Melanie Plageman, Thomas Munro, Andrey Borodin). It has been absolutely great having them join the workshops.

PostgreSQL Hacking Workshop - December 2024

Next month, I'll be hosting a discussion of Melanie Plageman's talk, Intro to Postgres Planner, given at PGCon 2019. You can sign up using this form. To be clear, the talk is not an introduction to how the planner works from a user perspective, but rather how to hack on it and try to make it better and perhaps get your improvements committed to PostgreSQL. If you're interested, please join us. I anticipate that both Melanie and I will be present for the discussions.

PostgreSQL Hacking Workshop - November 2024

Next month, I'll be hosting a discussion of a talk by Andy Pavlo, given for his Intro to Database Systems course at CMU. The title of the talk is "Memory & Disk I/O Management and the video link is https://www.youtube.com/watch?v=aoewwZwVmv4. As usual, we have will have three sessions, and you can sign up to participate in one of them using this form.

PostgreSQL Hacking Workshop - October 2024

This month, I'll be hosting a discussion of Thomas Munro's 2024.pgconf.dev talk, Streaming I/O and vectored I/O. As usual, there will be three sessions, and you can use this form to sign up for the session you prefer. However, if you do want to attend, please sign up right away, because our first session is scheduled for this Thursday.