---
title: "I Replaced Redis with PostgreSQL (And It's Faster)"
url: https://daily.dev/posts/sbgbgbtzq
source_url: https://dev.to/polliog/i-replaced-redis-with-postgresql-and-its-faster-4942
type: share
source: "Postgres Daily"
author: "Bobby Iliev"
published: 2026-01-17T17:41:24.089Z
updated: 2026-01-17T17:41:24.091Z
tags: ["performance", "database", "postgresql", "redis"]
upvotes: 0
comments: 0
language: en
---

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

**[Postgres Daily](https://daily.dev/sources/postgresdaily)** · [@bobbyiliev](https://daily.dev/bobbyiliev) · 0 upvotes · 0 comments

## Summary

PostgreSQL can replace Redis for caching, pub/sub, job queues, and sessions using UNLOGGED tables, LISTEN/NOTIFY, SKIP LOCKED, and JSONB. While PostgreSQL is 50-158% slower per operation (0.1-1ms difference), it eliminates network hops between databases, reduces infrastructure costs by ~$100/month, simplifies operations, and guarantees transactional consistency. The approach works best for small-to-medium apps with simple caching needs but isn't suitable for high-throughput scenarios (100k+ ops/sec) or applications requiring Redis-specific data structures like sorted sets or HyperLogLog.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://dev.to/polliog/i-replaced-redis-with-postgresql-and-its-faster-4942>

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---

Tags: [#performance](https://daily.dev/tags/performance), [#database](https://daily.dev/tags/database), [#postgresql](https://daily.dev/tags/postgresql), [#redis](https://daily.dev/tags/redis)

[View this post on daily.dev](https://daily.dev/posts/sbgbgbtzq)