search with Postgres & pgvector

 Hybrid search with PostgreSQL and pgvector | Jonathan Katz

in the context of vector search, “hybrid search” is the act of combining an alternative searching method with a vector similarity search. Hybrid search uses multiple search methods over the same data, performs a ranking of the results for each search method, and then combines all the results to determine a final ranking before returning the results. Hybrid search is often used to improve the quality of the returned results, or in other words, boost the “recall” rate.

This blog post will introduce what hybrid search is and how to use it with PostgreSQL and pgvector.