Compression with Caching

[nginxsantos]

How can use these two together. Suppose I got an uncompressed response from
the backend/webserver. I want Nginx to compress the response before storing
in the cache. Looks like Nginx is first storing the response in the cache
and then doing a compression before sending the response to the client.
How can we achieve this, any configuration?

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,252885,252885#msg-252885