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A good article from Planet Scale on a product they’re introducing called “Database Traffic Control”. It talks about putting queues in Postgres as a potential source of pain and references my old blog post on failure by MVCC as an example. I continue to think about Postgres queues a lot, and as much as I wish the problem I’d discussed was resolved by SKIP LOCKED and more contemporary Postgres advances, the fact of the matter is that the underlying root cause of dead tuple accumulation due to Postgres’ MVCC m