Function ExecGetResultSlotOps

src/backend/executor/execUtils.c:555–579

* ExecGetResultSlotOps - information about node's type of result slot */

 * ExecGetResultSlotOps - information about node's type of result slot
 */
const TupleTableSlotOps *
ExecGetResultSlotOps(PlanState *planstate, bool *isfixed)
{
	if (planstate->resultopsset && planstate->resultops)
	{
		if (isfixed)
			*isfixed = planstate->resultopsfixed;
		return planstate->resultops;
	}

	if (isfixed)
	{
		if (planstate->resultopsset)
			*isfixed = planstate->resultopsfixed;
		else if (planstate->ps_ResultTupleSlot)
			*isfixed = TTS_FIXED(planstate->ps_ResultTupleSlot);
		else
			*isfixed = false;
	}

	if (!planstate->ps_ResultTupleSlot)
		return &TTSOpsVirtual;

	return planstate->ps_ResultTupleSlot->tts_ops;
}


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