I'm curious how else you think large-scale data is stored other than in an index in the database sense of the word as well. You think Google has some kind of ma

I'm curious how else you think large-scale data is stored other than in an index in the database sense of the word as well. You think Google has some kind of massive heap-like, unstructured data-store that they run search queries against? That doesn't make sense to me, but I've also never worked in global scale web search, soooo idk.