    # File lib/active_record/connection_adapters/sqlserver_adapter.rb, line 256
          def columns(table_name, name = nil)
            return [] if table_name.blank?
            table_name = table_name.to_s if table_name.is_a?(Symbol)
            table_name = table_name.split('.')[-1] unless table_name.nil?
            table_name = table_name.gsub(/[\[\]]/, '')
            sql = %Q{
              SELECT
                cols.COLUMN_NAME as ColName,
                cols.COLUMN_DEFAULT as DefaultValue,
                cols.NUMERIC_SCALE as numeric_scale,
                cols.NUMERIC_PRECISION as numeric_precision,
                cols.DATA_TYPE as ColType,
                cols.IS_NULLABLE As IsNullable,
                COL_LENGTH(cols.TABLE_NAME, cols.COLUMN_NAME) as Length,
                COLUMNPROPERTY(OBJECT_ID(cols.TABLE_NAME), cols.COLUMN_NAME, 'IsIdentity') as IsIdentity,
                cols.NUMERIC_SCALE as Scale
              FROM INFORMATION_SCHEMA.COLUMNS cols
              WHERE cols.TABLE_NAME = '#{table_name}'
            }
            # Comment out if you want to have the Columns select statment logged.
            # Personally, I think it adds unnecessary bloat to the log.
            # If you do comment it out, make sure to un-comment the "result" line that follows
            result = log(sql, name) { @connection.select_all(sql) }
            #result = @connection.select_all(sql)
            columns = []
            result.each do |field|
              default = field[:DefaultValue].to_s.gsub!(/[()\']/,"") =~ /null/ ? nil : field[:DefaultValue]
              if field[:ColType] =~ /numeric|decimal/i
                type = "#{field[:ColType]}(#{field[:numeric_precision]},#{field[:numeric_scale]})"
              else
                type = "#{field[:ColType]}(#{field[:Length]})"
              end
              is_identity = field[:IsIdentity] == 1
              is_nullable = field[:IsNullable] == 'YES'
              columns << SQLServerColumn.new(field[:ColName], default, type, is_identity, is_nullable)
            end
            columns
          end