    # File lib/active_record/schema.rb, line 42
        def self.define(info={}, &block)
          instance_eval(&block)

          unless info.empty?
            initialize_schema_information
            cols = columns('schema_info')

            info = info.map do |k,v|
              v = Base.connection.quote(v, cols.detect { |c| c.name == k.to_s })
              "#{k} = #{v}"
            end

            Base.connection.update "UPDATE #{Migrator.schema_info_table_name} SET #{info.join(", ")}"
          end
        end