Help with Documentation Please

Rails
#1

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

#2

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