# File lib/tramp/engine.rb, line 57
    def columns(table_name, name = nil)
      sql = "SHOW FIELDS FROM #{quote_table_name(table_name)}"
      columns = []
      result = @connection.execute_now(sql)

      result.each { |field| columns << Column.new(field[0], field[4], field[1], field[2] == "YES") }
      result.free
      columns
    end