Скачать или смотреть Vector data in Postgres - how's it different from "normal" data? | POSETTE 2024

Video of a conference talk about vector data in Postgres presented by Heikki Linnakangas at POSETTE: An Event for Postgres 2024. AI works with vectors. But what is a vector? How is a vector in Postgres different from integers, text, geospatial data, or other traditional Postgres datatypes? Why can't you create a regular B-tree index over vectors? Ok, but why not a GiST index?

Heikki will touch on these Postgres and pgvector topics:

pgvector extension's data types, including the new sparse and bit vector types
Curse of dimensionality with vector databases
Vector search algorithms, including HNSW (hierarchical navigable small worlds)

Heikki is a cofounder of Neon and a long-time PostgreSQL developer and committer. Since 2023, he has also been contributing to pgvector.

Chapters:
00:00 - Intro
01:37 - Vector search is expensive
02:30 - What is a vector?
03:57 - Vectors are large
06:36 - What is vector search?
11:45 - Vector search is approximate
15:17 - Types of vector search algorithms
20:12 - Three new datatypes in pgvector 0.7.0
23:55 - Summary

📕 Everything you need to know about POSETTE: An Event for Postgres 2024 can be found at: https://aka.ms/posette

✅ Learn more:
Watch more POSETTE talks: https://aka.ms/posette-playlist-2024

📌 Let’s connect:
X – @PosetteConf https://x.com/PosetteConf
Mastodon - @posetteconf https://mastodon.social/@posetteconf
Threads – @posetteconf https://www.threads.net/@posetteconf

🔔 Subscribe to the POSETTE News: https://aka.ms/posette-subscribe

📣 Slides for this talk: https://speakerdeck.com/the4thdoctor/...

#PosetteConf #PostgreSQL #AI

Presenters:
Heikki Linnakangas, PostgreSQL hacker & committer, co-founder of Neon