Limit the number of post in RSS feed

Hi everyone,

I noticed that there is a rss feed related to search.

I find this very helpful.

Il would like to know if there is a parameter which enable me to only have the 5 first result of the rss search feed ?

I have tried to add "page_size=5" at the end of the URL but it has nos effect

http://community/communityname/rss/search?filter=solvedThreads&search_type=thread&solved=true&page_size=5

Do you have any thought about this ?

Thanks in advance

Note : I know that this easily feasible through the API but I need to use RSS.