VectorChord 0.4: Faster PostgreSQL Vector Search with Advanced I/O and Prefiltering

Thu, 05 Jun 2025 00:00:00 +0000

We’re excited to announce the release of VectorChord 0.4, a significant update that enhances high-performance vector search within PostgreSQL. We believe this release pushes the boundaries of what’s possible for vector search in PostgreSQL, introducing key architectural improvements designed to lower latency and increase throughput for demanding, real-world workloads.

If you’re working with similarity searches, RAG pipelines, or other AI-driven applications on PostgreSQL, these updates are for you. We’ve focused on two major areas: significantly enhancing I/O for cold queries by leveraging PostgreSQL’s evolving capabilities, and optimizing filtered vector searches.

pgvector on Vchord

VectorChord 0.4: Faster PostgreSQL Vector Search with Advanced I/O and Prefiltering