Dhruv Pilania <dhruv@cs.sunysb.edu> writes:
> Basically, I am making a small change in executePlan() function of
> executor/execMain.c. Right after a tupleslot is retrieved, I try to find
> out the oid of the tuple that has been retrieved.
The retrieved tuple doesn't have an OID, because it's not a raw pointer
to a row on disk: it's a computed tuple (the result of ExecProject).
regards, tom lane