[dangrossman]

HN doesn't use a database. There are no rows. Just one process on one server with everything in memory. Data is lazy loaded from flat files on-demand.

[krapp]

I assumed that in memory they had something structurally resembling a relational database but they might not. It would never even occur to me to not use a database for something like this.

[mcassagnes]

Thank you. I did not expect that!