Function ExecReScanWorkTableScan

src/backend/executor/nodeWorktablescan.c:215–229

---------------------------------------------------------------- * ExecReScanWorkTableScan * * Rescans the relation. * ---------------------------------------------------------------- */

 * ----------------------------------------------------------------
 */
void
ExecReScanWorkTableScan(WorkTableScanState *node)
{
	if (node->ss.ps.ps_ResultTupleSlot)
		ExecClearTuple(node->ss.ps.ps_ResultTupleSlot);

	ExecScanReScan(&node->ss);

	/* No need (or way) to rescan if ExecWorkTableScan not called yet */
	if (node->rustate)
	{
		tuplestore_select_read_pointer(node->rustate->working_table, node->readptr);
		tuplestore_rescan(node->rustate->working_table);
	}
}