_sum function in Erlang reduce doesn't work

[Ivan Bodunov]

Hi,

I have a view in Erlang. Its reduce() function looks like following:

        fun(Keys, Values, ReReduce) -> _sum(Values) end.

>From #couchdb irc I understood that it should work (similarly to JS view).
But Couch produces crash report when such view is triggered. Crash report is
behind the following link:

        http://friendpaste.com/5fAlSeKV0wpe1gWEKweVUR

Ivan