Making Postgres 300x faster for analytics: batching, operator fusion, and SIMD

pgrust version 0.2 achieves 300x faster performance than Postgres on analytical benchmarks through major query engine optimizations including batching, operator fusion, and SIMD instructions. The dramatic speedup is attributed to Postgres being designed in the 1980s when disk I/O was the primary bottleneck, whereas modern analytics workloads are now constrained by CPU and memory bandwidth, which pgrust's optimized query engine addresses. The article demonstrates this gap with a simple summation query that takes 20 seconds in Postgres but only 358 milliseconds in optimized Rust code.