if your familiar with wordpress at all and their main cache add on, it provides a tag which allows a page to be cached except for certain elements on the page. an example below

//this content will not be cached
include ('somefile.html');

Comments

Crell’s picture

Crell commented
Version: 4.7.x-1.x-dev » 5.x-1.x-dev
Status: Active » Closed (won't fix)

New features will only be accepted for the Drupal 5 version from here on out.

That said, Drupal's caching mechanism is "inside out", just like its page creation system. If a page is cached, the entire page from <html> to </html> is stored in the database and then pulled out and displayed on page load. Allowing for selected parts of the page to be uncached would, I believe, not be possible without altering Drupal's core caching mechanism. That's well out of scope for this module.