First of all, thank you for the great job that you're doing with DBeaver. I love this application more and more each day.
Something that I miss in the application is a count of the child nodes that each node has, in the tree of the Database Navigator. For example, it would be very useful to see how many columns a table has, without having to unfold the node that represents the table and without inspecting its properties. This would save a lot of time. Specially when you just want to know if the node contains something or noting at all. For example, to know if a table has constraints, indexes or triggers.
Applications such as pgAdmin III already implement this feature. It looks like this:
Thank you!