
Fraught Feedback: Trying and Failing to Implement Adaptive Behavior in Postgres
Presenters Melanie Plageman Source PGConf.dev 2025 🐌 The Quest for Smarter Vacuuming in PostgreSQL: A Journey of Discovery (and a Few Setbacks) 🐌 Hey everyone! Ever wondered what happens behind the scenes in your PostgreSQL database? It’s not all just queries and results. There’s a vital, often unseen process keeping things running smoothly: vacuuming. And as PostgreSQL evolves, so too must our approach to this critical operation. Recently, I attended a fascinating presentation diving deep into the complexities of PostgreSQL vacuuming and transaction ID (XID) management. It wasn’t a straightforward success story – it was a journey of exploration, experimentation, and ultimately, a humbling realization about the challenges of adaptive algorithms. Let’s break down what we learned! ...