Comment #1 on issue 233 by [email protected]: Enhancement http://code.google.com/p/memcached/issues/detail?id=233
You can mostly do this with the touch command, which is probably as close as you're going to get. With touch you can change the absolute expiration time (or by setting it to 0, change it to not expire). I'm not positive that making it more complex than that makes any real problem easier.
