How does the search for people on VKontakte work?

Question

Database

Hello, it became interesting how VK search works so fast? I think indexes are used, but I would like to read more about this. Maybe someone has links to sources or he tried to figure it out?

Answer 1

if you are only thinking about indexes - at the very beginning , look at sphinxsearch.com/docs/current.html#conf-wordforms
once , look at two https://habrahabr.ru/company/vkontakte/blog/214877/ look at three total.highload.ru