Function planstate_walk_node_extended

src/backend/executor/execProcnode.c:1167–1187

* Workhorse walker that uses flags. */

 * Workhorse walker that uses flags.
 */
CdbVisitOpt
planstate_walk_node_extended(PlanState *planstate,
				 CdbVisitOpt (*walker) (PlanState *planstate, void *context),
							 void *context,
							 int flags)
{
	CdbVisitOpt whatnext;

	if (planstate == NULL)
		whatnext = CdbVisit_Walk;
	else
	{
		whatnext = walker(planstate, context);
		if (whatnext == CdbVisit_Walk)
			whatnext = planstate_walk_kids(planstate, walker, context, flags);
		else if (whatnext == CdbVisit_Skip)
			whatnext = CdbVisit_Walk;
	}
	Assert(whatnext != CdbVisit_Skip);
	return whatnext;
}	/* planstate_walk_node */

CdbVisitOpt
planstate_walk_array(PlanState **planstates,