How does this work?

Hello!

I have one question, I've installed the multi-db plugin for 256 db's and everything went well. Then I added a new test blog to my network and I noticed that it did write anything to the new _01, _02 databases, just to the old and the _global database. This _01, _02, etc... databases are completely empty, no tables (except the _global one).

IS this right?