Ah I think i get it now - i looked at the imdb_lookup plugin, and it specifies multiple tables within its base. So that is how you're supposed to do it. I thought versioned_base was for each table.

Just to be sure - I make one database, then ask for a specific table within that database, correct? So I should make the two tables within the versioned database, instead of how I'm doing it now as two seperate bases.