# File lib/jdbc_adapter/jdbc_mssql.rb, line 236
      def columns(table_name, name = nil)
        return [] if table_name =~ /^information_schema\./i
        cc = super
        cc.each do |col|
          col.identity = true if col.sql_type =~ /identity/i
          col.is_special = true if col.sql_type =~ /text|ntext|image/i
        end
        cc
      end