An early look at HNSW performance with pgvector

• pgvector

  78 9,211 9.9 C

  Open-source vector similarity search for Postgres

  

This is a first look at the performance of pgvector’s HNSW implementation at a specific commit[0].

HNSW will be merged in v0.5.0 (which is imminent now). The results are very promising for the Postgres ecosystem, as the HNSW index shows a significant performance/recall improvement over the current ivfflat index in pgvector.

[0] https://github.com/pgvector/pgvector/commit/600ca5a7

• pgvecto.rs

  17 1,375 9.3 Rust

  Scalable, Low-latency and Hybrid-enabled Vector Search in Postgres. Revolutionize Vector Search, not Database.

  

Seems that pgvector has a viable competitor extension: https://github.com/tensorchord/pgvecto.rs

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