gitlabhq/gitlabhq — pull request #1666 by zzet (2012-10-10 00:07:13+00:00)
Title: Postgresql

What about this solution?

1. After patch AR Postgres users nothing to lose, since Postgres is no limited the :text column type. Now we can safely eat from schema.rb which was generated for mysql
2. Added support for using string FK with integer PK

That's all.