Dimitris Karampinas <dkarampin(at)gmail(dot)com> writes:
> Is there any way to retrieve the actual variable names (as were given
> during Stored Procedure definition) for the corresponding var_ids in
> pl/plpgsql/src/pl_exec.c ?
As of 9.0, you could dig through the namespace stack looking for a
match to the dno (datum number). In earlier releases, no chance because
that data structure wasn't kept around after compile.
regards, tom lane