Fair point: the 0.4-beta source doesn't prove anything about the benchmarked binary. So don't take my word for it or rely on the source we published as evidence. Instead, check the submitted binary itself: https://pgrust.com/downloads/archive/2026-09-clickbench-snap...

If you run it with PGRUST_GRAVITY_REPORT=1 it will report the code path hit for each query. You can see that all the queries go through the general query engine

The binary does contain hand-written kernels in the irprobe files. These were used for testing. You can validate that when running the benchmark, those files are dead code

The engine supports a narrow subset of SQL: scans, group-bys, filters, and sorting. That's enough to run ClickBench. It doesn't support e.g. subqueries which is why some of the follow up queries failed