I'm trying to write an ORM because it sounds like a fun learning 
experience. The idea is to grab some concepts of Og and some concepts of 
ActiveRecord and mix them with some of my own. But I don't want to have 
to write my own DB abstraction layer to handle different DB engines. 
Right now I'm using the rails ConnectionAdapters but is there a non-ORM, 
standalone SQL abstraction layer package for ruby?

Daniel