Function SearchSysCacheList

src/backend/utils/cache/syscache.c:1668–1678

* List-search interface */

 * List-search interface
 */
struct catclist *
SearchSysCacheList(int cacheId, int nkeys,
				   Datum key1, Datum key2, Datum key3)
{
	if (cacheId < 0 || cacheId >= SysCacheSize ||
		!PointerIsValid(SysCache[cacheId]))
		elog(ERROR, "invalid cache ID: %d", cacheId);

	return SearchCatCacheList(SysCache[cacheId], nkeys,
							  key1, key2, key3);
}

/*
 * SysCacheInvalidate