Function ExecFetchSlotMinimalTuple

src/backend/executor/execTuples.c:1708–1730

-------------------------------- * ExecFetchSlotMinimalTuple * Fetch the slot's minimal physical tuple. * * If the given tuple table slot can hold a minimal tuple, indicated by a * non-NULL get_minimal_tuple callback, the function returns the minimal * tuple returned by that callback. It assumes that the minimal tuple * returned by the callback is "owned" by the slot i.e. the slot is

 * --------------------------------
 */
MinimalTuple
ExecFetchSlotMinimalTuple(TupleTableSlot *slot,
						  bool *shouldFree)
{
	/*
	 * sanity checks
	 */
	Assert(slot != NULL);
	Assert(!TTS_EMPTY(slot));

	if (slot->tts_ops->get_minimal_tuple)
	{
		if (shouldFree)
			*shouldFree = false;
		return slot->tts_ops->get_minimal_tuple(slot);
	}
	else
	{
		if (shouldFree)
			*shouldFree = true;
		return slot->tts_ops->copy_minimal_tuple(slot);
	}
}

/* --------------------------------
 *		ExecFetchSlotHeapTupleDatum