Function ExecFetchSlotHeapTupleDatum

src/backend/executor/execTuples.c:1739–1758

-------------------------------- * ExecFetchSlotHeapTupleDatum * Fetch the slot's tuple as a composite-type Datum. * * The result is always freshly palloc'd in the caller's memory context. * -------------------------------- */

 * --------------------------------
 */
Datum
ExecFetchSlotHeapTupleDatum(TupleTableSlot *slot)
{
	HeapTuple	tup;
	TupleDesc	tupdesc;
	bool		shouldFree;
	Datum		ret;

	/* Fetch slot's contents in regular-physical-tuple form */
	tup = ExecFetchSlotHeapTuple(slot, false, &shouldFree);
	tupdesc = slot->tts_tupleDescriptor;

	/* Convert to Datum form */
	ret = heap_copy_tuple_as_datum(tup, tupdesc);

	if (shouldFree)
		pfree(tup);

	return ret;
}

/* ----------------------------------------------------------------
 *				convenience initialization routines