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Your service has just published a message to RabbitMQ — and then, right at commit time, the database transaction rolls back. The classic distributed-systems nightmare: ghost data, broken consistency, and hours lost to debugging. Usually you fight this with tricky custom code, two-phase commits, or just… crossing your fingers. But what if a PostgreSQL rollback could automatically “roll back” the message too, putting it back into the queue without you writing a single extra line? Here’s how that works.