[feike]

PostgreSQL has used this term for decades!

The oldest I can find is from 1998 (PostgreSQL 6.3), but it was probably in use even before.

> Postgres offers substantial additional power by incorporating the following four additional basic concepts in such a way that users can easily extend the system:

classes inheritance types functions

Other features provide additional power and flexibility:

constraints triggers rules transaction integrity

These features put Postgres into the category of databases referred to as object-relational

https://www.postgresql.org/docs/6.3/c0101.htm

[oaiey]

Thanks. Very much a buzzword then.