On Thu, 9 Oct 2003, Gaetano Mendola wrote: > Andriy Tkachuk wrote: > > On Wed, 8 Oct 2003, Tom Lane wrote: > > > > > >>Andriy Tkachuk <[EMAIL PROTECTED]> writes: > >> > >>>At second. calc_total() is immutable function: > >>>but it seems that it's not cached in one session: > >> > >>It's not supposed to be. > > > > > > but it's written id doc: > > > > IMMUTABLE indicates that the function always returns the same > > result when given the same argument values; that is, it does not > > do database lookups or otherwise use information not directly > > present in its parameter list. If this option is given, any call > > of the function with all-constant arguments can be immediately > > replaced with the function value. > > The doc say "can be" not must and will be.
ok, but on what it depends on? thanks, andriy http://www.imt.com.ua ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
