>>>>> "Tom" == Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
Tom> What I did in the patch is to scale the formerly fixed "-1.0"
Tom> stadistinct estimate to discount the fraction of nulls we found.
This seems quite dubious to me. stadistinct representing only the
non-null values seems to me to be substantially more useful and less
confusing; it should be up to consumers to take stanullfrac into account
(in general they already do) since in many cases we explicitly do _not_
want to count nulls.
--
Andrew (irc:RhodiumToad)