Strange date behavior

Using PostgreSQL and the C interface, I have defined a view class that includes 
a date column (timestamp in my database). When I define its type as being 
timestamp or universal-time (which is recommended by the LispWorks 
documentation, IIRC) I get back a symbol whose name is the date part of the time 
(interned in my package). Is there any way to get back a better time format? 
Preferably one of those nice classes in time.lisp like wall-time, or at least 
something that includes the time portion of the timestamp.

Not surprisingly, neither universal times nor wall-time instances seem to be 
liked by update-records-from-instance with my current type declaration.

Chris Capel