Retrieval and knowledge

pgvector

Add vector storage and similarity search to PostgreSQL.

23.4K GitHub starsAs of Checked

Where it fits

What you can use it for

Teams that want retrieval next to existing relational data.

Find relevant information and give AI applications useful context.

Before you adopt

What to check for your team

Tune indexes and query plans for your data; PostgreSQL operations and embedding generation remain your responsibility.

Get help evaluating the fit

Licence and scope

PostgreSQL

The pinned licence uses the permissive PostgreSQL licence text. PostgreSQL, embedding models, and other dependencies retain their own terms.

Read the upstream licence

Support the work

Go directly to the maintainers

Use the project's contribution guidance to report issues, help with documentation or contribute code. Follow any published funding links if you want to support the maintainers financially.

Find contribution guidance

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