[squid-users] More verbose logging?

Sometimes I check my squid log and found line such as:

2009/04/25 11:26:32| Failed to select source for
'http://www.example.com/index.php'
2009/04/25 11:26:32| always_direct = 0
2009/04/25 11:26:32| never_direct = 0
2009/04/25 11:26:32| timedout = 0

Is it possible to have more verbose logging?

E.g.

Client IP
POST Paramters
Received on Mon Apr 27 2009 - 02:34:53 MDT