The results are very promising for the Postgres ecosystem, as the HNSW index shows a significant performance/recall improvement over the current ivfflat index i

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. HNSW will be merged in v0.5.0. I can't speak for Andrew (the creator) but it seems that this release is imminent[0], pending some benchmarking and minor improvements. This is a first look at the performance of pgvector’s HNSW implementation at a specific commit[1]. [0] https://github.com/pgvector/pgvector/commit/51d292c93dff82f617c7a00df62eaaa4f6d73455 https://github.com/pgvector/pgvector/commit/51d292c93dff82f6... [1] https://github.com/pgvector/pgvector/commit/600ca5a7 https://github.com/pgvector/pgvector/commit/600ca5a7