_type_cast

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 183
        def _type_cast(value)
          case value
          when Symbol, ActiveSupport::Multibyte::Chars, Type::Binary::Data
            value.to_s
          when true       then unquoted_true
          when false      then unquoted_false
          # BigDecimals need to be put in a non-normalized form and quoted.
          when BigDecimal then value.to_s("F")
          when Type::Time::Value then quoted_time(value)
          when Date, Time then quoted_date(value)
          when *types_which_need_no_typecasting
            value
          else raise TypeError
          end
        end