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This post details how to use Postgres as a message queue system, similar to AWS SQS and Kafka. It explains how to create an SQS-like system in Postgres, covering aspects such as building the queue, receiving messages, ensuring FIFO, handling dead letter queues, and extending the system to replicate Kafka's features like consumer groups and message retention policies. The post also includes advanced strategies for mitigating race conditions and improving message processing efficiency through table partitioning and advisory locks.

Build your own SQS or Kafka with Postgres