EllisLab/CodeIgniter — pull request #632 by jtboofle (2011-10-28 04:08:36+00:00)
Title: Moving database calls out of Session library into sessions model

For those of us with 'special' database needs (in my case, connecting to DB2 and using non-standard field names in the session table), having all the database calls embedded in the session class is a pain in the keister. I've moved them out into a sessions model which makes fiddling around with session handling a simple matter of overriding 5 function calls.