[DannyBee]

Yes. But this is still an incredibly well known and solved problem. As an example - google's internal structured search engines did this decades ago at scale.

[Isn0gud]

Which solutions are you referring to? With access that is highly diverse and changing, this is still an unsolved problem to my knowledge.

[jsnell]

Probably Google Zanzibar (and the various non-Google systems that were created as a result of the paper describing Zanzibar).