"Florian Mader" <florian_mader(at)gmx(dot)net> writes:
> Now I tried the same create, insert and select statement you did. But
> the DB didn't return fractions like it did in your case.
Hm, what PG version are you running? You need 7.2 or later to have full
support for fractional timestamps (in particular, the result of now() is
only good to the nearest second in prior versions).
regards, tom lane