SetrixDB, a set engine built for exact intersections

Field notes

The engine stores sets of IDs rather than records, then combines minimal perfect hashing with dense, sparse, or hybrid representations. Its stated execution path uses AVX-512 instructions such as vpandq and vpopcntq, with a scalar fallback for portability. The homepage reports a 1.73 MB set where a dense bitset would require 8.59 GB for the cited 2³⁶ universe, and supplies go test ./... plus repository benchmark commands for reproduction.