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I think that's the point. Schema migration is traditionally a _very_ risky thing but they're trying to make it come off as "safe", if you're a PlanetScale customer.

yeah but half the risk is on the application side, completely independent of planetscale! not all applications can handle some schema change occurring and then suddenly reversing. someone may get fired just trying to win a shirt

also their exact wording, "successfully", so if it fails your db is broken AND you do not get a shirt?

Hopefully someone is doing this in testing or staging.

They don't say it needs to be a production system.