Re: [HACKERS] Re: Apparent bug in _make_subplan - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [HACKERS] Re: Apparent bug in _make_subplan
Date
Msg-id 199906180443.AAA16066@candle.pha.pa.us
Whole thread Raw
In response to Re: [HACKERS] Re: Apparent bug in _make_subplan  (Vadim Mikheev <vadim@krs.ru>)
List pgsql-hackers
> 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. 

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