If one describes CQRS as being mostly about a write (e.g. master data) + read (e.g. derived data) combination, how far could one get with a relational system with views and triggers?
Pretty far, I imagine, especially with things like materialized views... I'm just biased against putting more logic into the DB than strictly necessary, given the difficulty of versioning that logic and how the DB is often the bottleneck among multiple webservers.