Chris Bitmead <chrisb@nimrod.itg.telstra.com.au> writes:
> inside the backend, if I have a TupleTableSlot, can I find out from what
> basetable it is referring to or not?
Since it's not necessarily referring to any table at all, the general
answer is "no". Do you have a reason to assume that the slot is
holding a tuple directly fetched from disk, rather than constructed
on-the-fly?
regards, tom lane