Function SearchSysCacheCopyAttName

src/backend/utils/cache/syscache.c:1519–1531

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

 * As above, an attisdropped-aware version of SearchSysCacheCopy.
 */
HeapTuple
SearchSysCacheCopyAttName(Oid relid, const char *attname)
{
	HeapTuple	tuple,
				newtuple;

	tuple = SearchSysCacheAttName(relid, attname);
	if (!HeapTupleIsValid(tuple))
		return tuple;
	newtuple = heap_copytuple(tuple);
	ReleaseSysCache(tuple);
	return newtuple;
}

/*
 * SearchSysCacheExistsAttName