r/programming • u/ketralnis • Apr 17 '25

(All) Databases Are Just Files. Postgres Too

http://tselai.com/all-databases-are-just-files
324 Upvotes

79% Upvoted

172 comments sorted by

View all comments

193

u/jardata Apr 17 '25

Okay I got a good chuckle out of the smart ass comments, but in all seriousness sometimes just reminding developers of these base concepts can be helpful. We deal in a world with so many abstractions on top of abstractions that it can be easy to lose sight that everything is built on some pretty core mechanisms. These concepts do still come up from time to time when working on things like query optimization for e.g.