# File lib/active_record/connection_adapters/mysql_adapter.rb, line 218
      def rename_column(table_name, column_name, new_column_name)
        current_type = select_one("SHOW COLUMNS FROM #{table_name} LIKE '#{column_name}'")["Type"]
        execute "ALTER TABLE #{table_name} CHANGE #{column_name} #{new_column_name} #{current_type}"
      end