Does CodeIgniter 2 have dynamic caching / post processing?

[eluser]ChiefChirpa[/eluser]
I'm not sure what it is called I guessed (probably badly) at dynamic caching or post processing, but anyway I wondered if CI2 has a feature where you can cache a page, but mark a certain segment (or confgure a widget/plugin/partial if CI has anythng along those lines for handling part of a page) not to be cached and to be run each request adding its output to the cached page output.

Or if it hasn't, does CI's structure/flow allow this sort of thing to be implemented without too much pain?

[eluser]n0xie[/eluser]
You could use Ajax for that: Cache the page (including the on load event javascript) then when the page is served, the javascript will trigger a 2nd request for the dynamic data.