How to Install PostgreSQL with pgvector Step by Step

This guide installs PostgreSQL 16 with pgvector on Debian or Ubuntu using the official PGDG repository, creates a dedicated role and database, tunes memory for production, and explains when the HNSW index beats IVFFlat depending on vector volume and the available maintenance window.

February 2, 2024 8 min 466 4.7

Architecture

pgvector in 2024: HNSW Indexes and Real Scaling

pgvector matured in 2023-2024 with the HNSW index type and parallel construction that arrived in version 0.6. For projects already running PostgreSQL, a dedicated vector database is not needed in most cases: this guide explains when PostgreSQL is enough, how to configure the index, and where it starts to fall short.

January 21, 2024 5 min 229 4.4