On: The Design of Postgres (1986) [pdf]

[joppy]

That’s a preprint - check the published version https://dl.acm.org/doi/10.1145/176584.176586 which has a date on the front page of the article.

[anyfoo → joppy]

That's a good point. Given how many apparent preprints I come across, though, I wish they'd just put a date on the front page, too.