In the Property of the database pane (File menu), their is no information available on the space the database takes on the disk. This would be a simple, useful addition to this info pane.
The panel shows intentionally only the size of all imported/indexed items as that’s much more relevant, e.g. for synchronizing. The total size can be easily found in the Finder.
I see it now ! It is at the bottom. I was expecting it to be highlighted on top of the pane.
Now I now where to find it.