# File lib/dm-core/adapters/data_objects_adapter.rb, line 607
          def type_map
            @type_map ||= TypeMap.new(super) do |tm|
              tm.map(Integer).to('INT')
              tm.map(String).to('VARCHAR').with(:size => Property::DEFAULT_LENGTH)
              tm.map(Class).to('VARCHAR').with(:size => Property::DEFAULT_LENGTH)
              tm.map(DM::Discriminator).to('VARCHAR').with(:size => Property::DEFAULT_LENGTH)
              tm.map(BigDecimal).to('DECIMAL').with(:precision => Property::DEFAULT_PRECISION, :scale => Property::DEFAULT_SCALE_BIGDECIMAL)
              tm.map(Float).to('FLOAT').with(:precision => Property::DEFAULT_PRECISION)
              tm.map(DateTime).to('DATETIME')
              tm.map(Date).to('DATE')
              tm.map(Time).to('TIMESTAMP')
              tm.map(TrueClass).to('BOOLEAN')
              tm.map(DM::Object).to('TEXT')
              tm.map(DM::Text).to('TEXT')
            end
          end