PostgreSQL CDC pipeline

Inside OpenAI’s PostgreSQL Strategy: Scaling a Single Primary to 800 Million Users

Cary Huang
January 26, 2026January 26, 2026
News, postgresql

OpenAI is running ChatGPT and its API platform — serving around 800 million users — on a single primary PostgreSQL instance. Not a distributed SQL cluster, not a heavily sharded fleet, but one write primary with nearly 50 read replicas… Read More »Inside OpenAI’s PostgreSQL Strategy: Scaling a Single Primary to 800 Million Users

How to Build a Robust PostgreSQL Logical Replication Slot Pipeline

Cary Huang
January 25, 2026January 25, 2026
postgresql

Introduction: Why PostgreSQL Logical Replication Slots Matter for CDC When I started building change data capture (CDC) pipelines on PostgreSQL, the hardest part wasn’t decoding the data itself – it was making the pipeline reliable. Keeping track of exactly which… Read More »How to Build a Robust PostgreSQL Logical Replication Slot Pipeline