I was wondering how to get Rails 2.1 migrates to go from generating
20080910014108_create_table.rb-esque migrations to the old
22_create_table.rb style ones. I am sure that there is some sort of
advantage in having timestamps in the file name, I just haven’t
figured it out yet.
the advantage to the datetime based filenames over the simple integers
is that it allows you to work in branches, make migrations and merge
it all back together later without fear of conflicting migrations. why
would you want to go back?