pg_vectorsearch ships alpha PRISM vector index

On October 14, Hacker News' front page covered the PostgreSQL extension pg_vectorsearch releasing an alpha version of its PRISM vector index. The project says that on a dataset of 100 million vectors, PRISM beats pgvector's IVFFlat and HNSW on query speed and index build speed at equal recall, while using a quarter of the memory. The release is alpha, and the performance claims come from the project itself.

Written by AI from the coverage · updated 2 hours ago

Not enough continuous observations to draw a trend yet.