rails/rails — pull request #5537 by kennyj (2012-03-21 14:53:59+00:00)
Title: [3-2-stable] migrate(:down) method with table_name_prefix

This PR is backporting #4399 to 3-2-stable.
I think this fix isn't merged yet.

Please see https://github.com/rails/rails/pull/4399.

/cc @tenderlove