For mySQL you could use unix_timestamp()
For Postgres you could use date_part('epoch',now())

I've always used DateTime personally and have only ever reflected
tables that used Integer timestamps. So I can't speak to the drawbacks
or potential impacts with any authority. There may also be a more DB
portable solution for this as well.

On Jul 2, 12:52 pm, Lukasz Szybalski <[email protected]> wrote:
> Hello,
> What is the equivalent of the following but in the integer version.
>
>  Column('_last_updated', DateTime(True),
>                                     default=func.current_timestamp(),
>                                     onupdate=func.current_timestamp()),
>
>  Column('_last_updated', Integer, default=int(time.time(), onupdate=func.???),
>
> I see that project like trac uses the integer timestamps extensively.
> Can it be used safely in any other project or there are some drawbacks
> for it?
>
> Thanks,
> Lucas
>
> --
> Using rsync. How to setup rsyncd.http://lucasmanual.com/mywiki/rsync
> DataHub - create a package that gets, parses, loads, visualizes 
> datahttp://lucasmanual.com/mywiki/DataHub
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