Function ExecHashTableResetMatchFlags

src/backend/executor/nodeHash.c:2502–2525

* ExecHashTableResetMatchFlags * Clear all the HeapTupleHeaderHasMatch flags in the table */

 *		Clear all the HeapTupleHeaderHasMatch flags in the table
 */
void
ExecHashTableResetMatchFlags(HashJoinTable hashtable)
{
	HashJoinTuple tuple;
	int			i;

	/* Reset all flags in the main table ... */
	for (i = 0; i < hashtable->nbuckets; i++)
	{
		for (tuple = hashtable->buckets.unshared[i]; tuple != NULL;
			 tuple = tuple->next.unshared)
			HeapTupleHeaderClearMatch(HJTUPLE_MINTUPLE(tuple));
	}

	/* ... and the same for the skew buckets, if any */
	for (i = 0; i < hashtable->nSkewBuckets; i++)
	{
		int			j = hashtable->skewBucketNums[i];
		HashSkewBucket *skewBucket = hashtable->skewBucket[j];

		for (tuple = skewBucket->tuples; tuple != NULL; tuple = tuple->next.unshared)
			HeapTupleHeaderClearMatch(HJTUPLE_MINTUPLE(tuple));
	}
}


void