Open-source vector similarity search for Postgres. Contribute to pgvector/pgvector development by creating an account on GitHub.

Sep 4, 2023 · pgvector, an open-source PostgreSQL extension that provides vector similarity search capabilities, has released v0.5.0. This latest version of pgvector adds a new index type, hnsw, builds …

Dec 16, 2025 · pgvector is an open‑source PostgreSQL extension that brings native vector similarity search directly into the relational database. It allows you to store, index and query high‑dimensional …

Jan 20, 2026 · pgvector is an open-source extension for PostgreSQL that adds support for vector operations and similarity searches. It lets you store, index, and query vector data directly within your …

Aug 29, 2025 · In this comprehensive guide, we’ll explore how to set up PostgreSQL with pgvector, implement vector operations, and build a practical semantic search application.

Mar 8, 2026 · pgvector is a PostgreSQL extension that adds a vector column type and operators for similarity search. It supports cosine distance (<=>), L2 distance (<->), and inner product (<#>), with …

Jan 27, 2026 · This document provides a high-level overview of setting up and using pgvector for the first time. It covers prerequisites, the extension activation process, and the basic workflow for storing …

What is pgvector? pgvector is an extension for PostgreSQL (also called Postgres) that simplifies working with vectors—enabling you to store, search, and index them directly in your relational...

Dec 15, 2025 · In short, pgvector lets you build AI-powered search and recommendation features right in your existing PostgreSQL database. No need for a separate search engine – just SQL and vectors.

Feb 25, 2026 · pgvector is an open-source PostgreSQL extension that equips PostgreSQL databases with vector data storage, indexing, and similarity search capabilities—ideal for embeddings-based …