Function ExecStoreVirtualTuple

src/backend/executor/execTuples.c:1568–1582

-------------------------------- * ExecStoreVirtualTuple * Mark a slot as containing a virtual tuple. * * The protocol for loading a slot with virtual tuple data is: * * Call ExecClearTuple to mark the slot empty. * * Store data into the Datum/isnull arrays. * * Call ExecStoreVirtualTuple to mark the slot valid. * This is a bit unclean but it avoids one round of data copying. * ----

 * --------------------------------
 */
TupleTableSlot *
ExecStoreVirtualTuple(TupleTableSlot *slot)
{
	/*
	 * sanity checks
	 */
	Assert(slot != NULL);
	Assert(slot->tts_tupleDescriptor != NULL);
	Assert(TTS_EMPTY(slot));

	slot->tts_flags &= ~TTS_FLAG_EMPTY;
	slot->tts_nvalid = slot->tts_tupleDescriptor->natts;

	return slot;
}

/* --------------------------------
 *		ExecStoreAllNullTuple