I love older papers. Lenstra and Kan, 1979 "Computational Complexity of Discrete Optimization Problems" Annals of Discrete Mathematics #orms

"The fastest way of processing data is to not process it." Our SIGMOD 2025 paper shows how Snowflake skips 99.4% of data with new pruning techniques for LIMIT, top-k, and JOIN queries. Blog: snowflakepruning.github.io Paper: arxiv.org/abs/2504.11540 @sigmod2025.bsky.social

Camera-ready version of the paper submitted => 115 tabs in Chrome closed.

We just released Redbench, a new benchmark that contains 30 analytical SQL workloads that can be used to benchmark workload-driven optimizations. Go check it out! GitHub: github.com/utndatasyste...

The first day of the BTW Conference in Bamberg is coming to an end. Some personal favorites: - Ismail's talk on Pruning in Snowflake - @stefan-grafberger.com's talk on what-if analysis in ML pipelines and automatically patching ML pipelines in the background - Observe Inc's presentation

Please help spread the word by reposting! We've just created the official DEEM Workshop account: @deem-workshop.bsky.social

My very first paper got accepted to @sigmod2025.bsky.social! Yay! Means I'll be playing a home game in Berlin

Reading cacm.acm.org/blogcacm/21s... makes me think that Rust was just a giant research project and valuable findings are now being streamed back into C++, making them usable to a broader audience.

My professor jokingly threatened me that I would get fired if my VO2 Max is too low. After a run with him it's at 58 now. I guess I can continue my PhD 😋

The Nuremberg Data Systems Lab is now on Bluesky 🙌 @utndatasystems.bsky.social

In academia, everyone always has a Colleague Working On Exactly This Problem. I still have to find one. Applications open.

Exciting News! 🎉 #Tampere will host EDBT/ICDT 2026! ✨ Even before the 2025 edition, the important dates are already out: 📅 Round 1 starts on: February 5 for EDBT Papers March 13 for ICDT Papers edbticdt2026.github.io We can’t wait to see your great submissions and welcome you to Tampere! 🙌

The @sigmod2025.bsky.social Programming Contest goes into another round. We (Bo Tang, Tilmann Rabl, and myself) just published the timeline and task overview: sigmod-contest-2025.github.io/index.html Thanks to Carlo Curino and @microsoft.com for the continued support.

If I’m ever a professor again, I want to give a graduate seminar, topics to include: - how not to say stupid shit about fields outside your expertise - what is your expertise, anyway? - how not to be an insufferable bore - your PhD doesn’t make you a better person: coping with that Other ideas?

I love how dedicated some students are. They are supposed to create a 5min video about a topic and one of them sends me their slides for review. 15(!) detailed(!) slides(!)

I proudly sneaked in an example about nature conservation into a database research paper 🌳

The scale of Google Spanner is staggering - 5 billion queries per second! youtu.be/uy3LjRPFoKw?...