Pg_vectorsearch: An index that is faster than pgvector's IVFFlat and HNSW
Summary
High-performance vector search extension for PostgreSQL introduces PRISM index, RaBitQ quantization, SIMD optimizations, and dynamic updates, claiming faster performance than pgvector's IVFFlat and HNSW. It provides native PostgreSQL integration, two usage paths, and detailed docs, with alpha status.