Function ExecForeignScan

src/backend/executor/nodeForeignscan.c:118–135

---------------------------------------------------------------- * ExecForeignScan(node) * * Fetches the next tuple from the FDW, checks local quals, and * returns it. * We call the ExecScan() routine and pass it the appropriate * access method functions. * ---------------------------------------------------------------- */

 * ----------------------------------------------------------------
 */
static TupleTableSlot *
ExecForeignScan(PlanState *pstate)
{
	ForeignScanState *node = castNode(ForeignScanState, pstate);
	ForeignScan *plan = (ForeignScan *) node->ss.ps.plan;
	EState	   *estate = node->ss.ps.state;

	/*
	 * Ignore direct modifications when EvalPlanQual is active --- they are
	 * irrelevant for EvalPlanQual rechecking
	 */
	if (estate->es_epq_active != NULL && plan->operation != CMD_SELECT)
		return NULL;

	return ExecScan(&node->ss,
					(ExecScanAccessMtd) ForeignNext,
					(ExecScanRecheckMtd) ForeignRecheck);
}


/* ----------------------------------------------------------------