Thanks for sharing the work of predicate transfer! The blog is very easy to read and inspiring!

For thoughts about distributed settings, there is a recent work in this year SIGMOD ("Accelerate Distributed Joins with Predicate Transfer") which mainly talks about how to extend predicate transfer to distributed settings.

For people who are interested, there is also another work in this year SIGMOD ("Debunking the Myth of Join Ordering: Toward Robust SQL Analytics") that demonstrates the robustness of predicate transfer to random join orders.