[losvedir]

The parent said a query of a hundred million rows, i.e.: `select * from users where id = ?` when there are a hundred million users. That's obviously not scanning a hundred million rows, since the index will be a b-tree which by the power of logarithms is not so many levels deep.

Like Illniyar, that's also what I interpreted GP to mean when they said:

> "surprised that some NoSQL DB could do a query on hundred million rows in a few seconds"

which is not fast at all. However, if it actually did something on a hundred million rows that would be impressive. Not sure exactly sure which they meant, though.