Postgres Extensions Cheat Sheet: Replace 7 Databases With SQL

This post is a practical companion to It's 2026, Just Use Postgres. That post makes the architectural case for consolidating on Postgres. This one shows you how.

Below are working SQL examples for each use case. Every extension listed here is available on Tiger Cloud with no additional setup. If you're self-hosting, each section links to the extension's repo.

What you'll be able to do after reading this: Set up Postgres extensions for full-text search, vector search, time-series, caching, message queues, document storage, geospatial queries, and scheduled jobs. Each section is self-contained, so you can skip to what you need.

Enable Everything

Here's the full set. You probably don't need all of them. Pick the ones that match your workload.

CREATE EXTENSION pg_textsearch; -- BM25 full-text searchCREATE EXTENSION vector; -- Vector search (pgvector)CREATE EXTENSION vectorscale; -- DiskANN index for vectorsCREATE EXTENSION ai; -- AI embeddings and RAG workflowsCREATE EXTENSION...

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