Wow, I wasn't expecting such an in-depth response! It sounds like making user profiles a reference table would solve the cross-shard join problem, but what wou

Wow, I wasn't expecting such an in-depth response! It sounds like making user profiles a reference table would solve the cross-shard join problem, but what would the performance implications look like? The docs just say that it does a 2PC, which I'm assuming won't perform very well in a high-write workload