11851. On-disk HNSW index for Postgres with pg_embedding (neon.com)
A few weeks back, we released pg_embedding, a new extension for Postgres and LangChain which introduced Hierarchical Navigable Small Worlds (HNSW) indexes for vector similarity search. This new indexing method resulted in 20x faster queries at a 99% accuracy compared to traditional IVFFlat indexing....