Bruce Momjian wrote:
>
> > subselect.c uses varlevelsup as absolute level number only
> > for correlation vars <--> params mapping, so why should it be
> > source of bugs? SS_replace_correlation_vars replaces all
> > correlation vars with parameters. Vars with absolute varlevelsup
> > are in PlannerParamVar only. To identify correlation vars and
> > to know is parameter already assigned to a var we obviously
> > need in absolute level number.
>
> But the varlevelsup I pass in from the parser are relative to the
> current level, not absolute.
subselect.c takes it into account, computes absolute numbers
and stores them in PlannerParamVar only...
Vadim
