I Replaced Redis with PostgreSQL (And It's Faster)
postgres•Jan 9, 2026

I Replaced Redis with PostgreSQL (And It's Faster)

I ripped out Redis entirely and replaced it with PostgreSQL, achieving real-time log streaming with zero Redis. Here's what happened and what I learned.

devTo

devTo

Original source

Key summary

The author replaced Redis with PostgreSQL in their log management app and achieved real-time log streaming with zero Redis. They highlight the benefits of using PostgreSQL's native pub/sub and transactional consistency, but also note that Redis may still be necessary for certain use cases, such as high cache read rates.

TL;DR

  • PostgreSQL can handle Redis-like tasks
  • Native pub/sub allows for real-time log streaming
  • Transactional consistency ensures data integrity
  • FOR UPDATE SKIP LOCKED makes PostgreSQL a lock-free queue
  • PostgreSQL is faster when operations are combined
  • Replace Redis with Postgres for low cache read rates
  • Monitor performance and error rates before making the switch
  • PostgreSQL has many hidden features worth exploring

This content is automatically summarized using AI. For full context, always refer to the original article.

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