If my table reads like this:
create_table(:pet_owners, :force => true) do |t|
... then ActiveRecord::Base generates the following methods:
The first four I recognize from the documentation. But what about the
remaining five? If they do what I *think* they do, they could be
useful. But I'd prefer not use trial and error to find out if I could
So: Where are they documented (other than in the source code)?