Function SampleNext

src/backend/executor/nodeSamplescan.c:44–57

---------------------------------------------------------------- * SampleNext * * This is a workhorse for ExecSampleScan * ---------------------------------------------------------------- */

 * ----------------------------------------------------------------
 */
static TupleTableSlot *
SampleNext(SampleScanState *node)
{
	/*
	 * if this is first call within a scan, initialize
	 */
	if (!node->begun)
		tablesample_init(node);

	/*
	 * get the next tuple, and store it in our result slot
	 */
	return tablesample_getnext(node);
}

/*
 * SampleRecheck -- access method routine to recheck a tuple in EvalPlanQual