[SQLObject] How to reset to the default value?

[Soni B. <be...@ai...>]

Hello folks,
lets assume we have a class like:

class Date(SQLObject):
    timestamp = DateTimeCol(default = SQLConstant("CURRENT_TIMESTAMP AT
TIME ZONE 'UTC'"))
    comment = StringCol(default = 'no comment')

Now at some point i want to reapply the default value of comment or
timestamp.

I could easily do:

my_date.timestamp = SQLConstant("CURRENT_TIMESTAMP AT TIME ZONE 'UTC'")

or

my_date.timestamp = 'no comment'

But this is not quiet what i want (just imagine that i change to
'comentless' in the future)

I'm looking for an SQLObject equivalent of SQL's DEFAULT. Is there a way
to achieve this currently? If not, will it be hard to implement?

Cheers,
-- 
Soni Bergraj