datamapper/dm-migrations — pull request #38 by postmodern (2012-02-09 03:20:33+00:00)
Title: Generate the correct MySQL SQL for renaming a column.

* Improved on @rindek's patches which allow dm-migrations to generate MySQL specific SQL to rename a column (`ALTER TABLE [table] CHANGE [old_column] [new_column] [column_definition]`.
* Added specs for `rename_column` for the mysql and postgres adapters.