Help with Documentation Please

Where in the online docs or rails api do I find a discussion of the table_name_prefix and primary_key_prefix_type methods? I have tried Rails::Configuration and that passed me to ActiveRecord::Base. In ActiveRecord::Base I find mention of the class method table_name_prefix in table_name but no specific documentation.

Thanks

My problems seems to be that these are not methods but rather class variables. Sigh.