Yes definitely, adding database schemas and queries is on our roadmap for capturing "indirect links" across codebases. We are thinking of something similar to Supabase studio's schema visualizer [1], but integrated with the map of the codebase so that which parts of the code read/writes to different tables. Is that what you have in mind? Or do you mean something else by database access patterns?
1: https://supabase.com/blog/supabase-studio-3-0#schema-visuali...