Is it possible to use other languages than Javascript in CouchDB show/list functions

CouchDB delegates computation of Views to external query servers. So it is possible to use other languages than Javascript for MapReduce functions (for example, there is imple开发者_StackOverflow中文版mentations for Common Lisp, native Erlang, etc.)

Is it possible to do so with CouchDB Show/List functions?

Yes it is possible (even on a per-view basis) and is described on this page of the CouchDB wiki:

http://wiki.apache.org/couchdb/View_server

Once you define additional query servers in your local.ini you're good to go and even Futon (the included /_utils web interface) will give you a dropdown to select a language from.