    # File lib/active_record/connection_adapters/sqlserver_adapter.rb, line 194
          def native_database_types
            {
              :primary_key => "int NOT NULL IDENTITY(1, 1) PRIMARY KEY",
              :string      => { :name => "varchar", :limit => 255  },
              :text        => { :name => "text" },
              :integer     => { :name => "int" },
              :float       => { :name => "float", :limit => 8 },
              :decimal     => { :name => "decimal" },
              :datetime    => { :name => "datetime" },
              :timestamp   => { :name => "datetime" },
              :time        => { :name => "datetime" },
              :date        => { :name => "datetime" },
              :binary      => { :name => "image"},
              :boolean     => { :name => "bit"}
            }
          end