Product analytics, query engines, and the unglamorous parts of running a small company that ships every week.
Engineering
How we made funnels three times faster by scanning once
The old executor did one pass per funnel step, which meant a six-step funnel read the same eight billion rows six times. Here's the rewrite, the two dead ends we hit on the way, and the benchmark harness we now run on every commit.
Zami Holmes·14 July 2026
Elias Vance·28 July 2026·11 min read 