In the dreamhost wiki on using mysql it says,
link: http://wiki.dreamhost.com/KB_/Account_Control_Panel/Goodies::_MySQL
My question is, does anyone know if this requirement is still true? Some time ago, before I read this information, I set up several databases and if memory serves my right (and I am reading my mysql configuration correctly) they are all using the same mysql host . . . . and everything appears to be working.