p
pgvector
Open source PostgreSQL extension for vector similarity search with HNSW and IVFFlat indexes.
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- pg_vectorsearch vs pgvector: PRISM vs HNSW build times, filters and which index takes the vector slot in Postgres
Stay on pgvector HNSW in production: pg_vectorsearch 0.1.0 is alpha and needs Postgres 18. With enough build memory, 42 h vs 49 min becomes 6.2 h vs 0.96 h.