Function SearchSysCacheCopyAttNum

src/backend/utils/cache/syscache.c:1582–1594

* SearchSysCacheCopyAttNum * * As above, an attisdropped-aware version of SearchSysCacheCopy. */

 * As above, an attisdropped-aware version of SearchSysCacheCopy.
 */
HeapTuple
SearchSysCacheCopyAttNum(Oid relid, int16 attnum)
{
	HeapTuple	tuple,
				newtuple;

	tuple = SearchSysCacheAttNum(relid, attnum);
	if (!HeapTupleIsValid(tuple))
		return NULL;
	newtuple = heap_copytuple(tuple);
	ReleaseSysCache(tuple);
	return newtuple;
}


/*