---
title: "Vector Similarity Search in DuckDB"
url: https://daily.dev/posts/vector-similarity-search-in-duckdb-0pmks4ib3
source_url: https://duckdb.org/2024/05/03/vector-similarity-search-vss
type: article
source: "Community Picks"
published: 2024-05-04T04:54:36.298Z
updated: 2024-05-09T08:43:33.910Z
tags: ["duckdb"]
reading_time: 6
upvotes: 3
comments: 0
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Vector Similarity Search in DuckDB

**[Community Picks](https://daily.dev/sources/community)** · 6 min read · 3 upvotes · 0 comments

## Summary

The blog post introduces the vss extension in DuckDB, which adds support for vector similarity search using HNSW indexes. It explains the motivation behind adding the ARRAY data type and the new distance metric functions, as well as the implementation and limitations of the vss extension.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://duckdb.org/2024/05/03/vector-similarity-search-vss>

## Similar posts on daily.dev

- [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 0 upvotes · 0 comments
- [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments
- [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments

---

Tags: [#duckdb](https://daily.dev/tags/duckdb)

[View this post on daily.dev](https://daily.dev/posts/vector-similarity-search-in-duckdb-0pmks4ib3)