I see. Thanks for the advice. I would research on how to use tuplestore object.
Regards,
Bramandia R.
On Sat, Dec 13, 2008 at 10:36 AM, Tom Lane
<tgl@sss.pgh.pa.us> wrote:
> Hmm how if an upper level node needs to store (for future use) the
> TupleTableSlot* returned by lower level node, e.g. I create a specialized
> Sort Node which needs to read all tuples from lower level nodes. In this
> case, would it be necessary and sufficient to make a copy the TupleTableSlot
It would be a pretty crummy way to approach it, because a Slot is not
intended to be a compact representation. You probably want to use a
tuplestore or tuplesort object instead.
regards, tom lane