In the meantime there’s Pinecone (https://www.pinecone.io https://www.pinecone.io) to put alongside your DB. Also there is at least one plugin for Postgres tha

In the meantime there’s Pinecone (https://www.pinecone.io https://www.pinecone.io) to put alongside your DB. Also there is at least one plugin for Postgres that I know of, PGVector, but no idea how it performs.