PostgreSQL at Scale: Saving Space (Basically) for Free

1 · PayPal · Aug. 6, 2021, 2:26 p.m.
Braintree Payments operates dozens of PostgreSQL clusters with over 100 terabytes of data. At this scale, even a few percentage points change in disk space growth rate can meaningfully impact the writable lifespan of a database cluster. Unfortunately, many ideas to save disk space require application changes and therefore need to be slotted into product timelines.But today I want to focus on a technique that saved us approximately 10% of our disk space with very little effort beyond existing pro...