[randomdata]

> SQL is around since the dawn of relational database

There was a decent amount of competition back then, though. It seems the industry eventually settled on SQL to be compatible with Oracle's dominance. Postgres didn't gain SQL support until about a decade in.

[onlyrealcuzzo]

What were some of the alternatives? What did Postgres start with?

[randomdata]

Postgres used QUEL in the early days, as did its predecessor Ingres. MRDS, the first commercially available relational database, used a language known as Linus. Alpha was the language originally envisioned by Codd to describe his relational model.