Data Engineering

Vector Search at Scale: PostgreSQL 18 pgvector vs Qdrant vs Milvus

An exhaustive 10-Million vector benchmark shootout. We evaluate HNSW indexing speed, filtered search recall, hybrid full-text scoring, and operational complexity across Postgres 18 pgvector, Qdrant (Rust), and Milvus.

Sachin Sharma
Sachin SharmaCreator
Sep 2, 2026
3 min read
Vector Search at Scale: PostgreSQL 18 pgvector vs Qdrant vs Milvus
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An exhaustive 10-Million vector benchmark shootout. We evaluate HNSW indexing speed, filtered search recall, hybrid full-text scoring, and operational complexity across Postgres 18 pgvector, Qdrant (Rust), and Milvus.

Sachin Sharma

Sachin Sharma

Software Developer & Mobile Engineer

Building digital experiences at the intersection of design and code. Sharing weekly insights on engineering, productivity, and the future of tech.