# File lib/arel/crud.rb, line 22
    def update values
      if $VERBOSE
        warn "update (\#{caller.first}) is deprecated and will be removed in ARel 3.0.0. Please\nswitch to `compile_update`\n"
      end

      um = compile_update values
      @engine.connection.update um.to_sql, 'AREL'
    end