Markus Bertheau writes:
> I wonder about the difference between date_part('week', ...) and
> extract(week from ...) not only but also from a performance point of
> view. I read extract is standard and date_part is not. Backwards
> compatibility maybe justifies the existence of date_part. Whats else?
I think date_part() was adapted from Ingres. Btw., note that the "week"
parameter (and most others) aren't standard either.
--
Peter Eisentraut peter_e(at)gmx(dot)net