On: Creating a search engine with PostgreSQL

[lionkor]

I'd guess:

- everything was in RAM,

- it was written in a compiled language, and

- probably skipped worrying about too many crazy edge cases

[thumbuddy → lionkor]

Same guesses I'd also add, single client without network connections. Anyone who says "writing a database from scratch is easy" makes me sweat profusely.

[hot_gril → thumbuddy]

Especially not easy if you actually implement read/write transactions (=> concurrency control, WAL, ...)