# File lib/dm-migrations/adapters/dm-sqlserver-adapter.rb, line 161
        def type_map
          length    = Property::String.length
          precision = Property::Numeric.precision
          scale     = Property::Decimal.scale

          super.merge(
            DateTime       => { :primitive => 'DATETIME'                   },
            Date           => { :primitive => 'SMALLDATETIME'              },
            Time           => { :primitive => 'SMALLDATETIME'              },
            TrueClass      => { :primitive => 'BIT',                       },
            Property::Text => { :primitive => 'NVARCHAR', :length => 'max' }
          ).freeze
        end