How We Saved Our Chat App from PostgreSQL Transaction Wraparound Disaster

by Anish Gopalan The 3 AM Wake-Up Call Nobody Wants It’s 3 AM. Your phone buzzes. The chat app you’ve built is down. Completely down. PostgreSQL has shut itself down to prevent data corruption, and millions of users are unable to send messages. The culprit? Something called “transaction wraparound” that you probably haven’t thought about since that database course in college. We caught it just in…

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