[geocar]

> Kdb wasn't originally any more relational than the language Erlang is.

To wit: SQL wasn't originally any more relational[1] than the language Erlang is.

[1]: Codd, E. F. A Relational Model of Data for Large Shared Data Banks -- Communications of the ACM, Vol. 13, No. 6, June 1970, pp. 377-387

I'm not sure what value such a statement brings the world.

[ghc]

I was drawing a comparison between the Kdb runtime and the Erlang runtime, because the OP seems to be conflating the ability to emulate relational features at the application level with first-class support for relational semantics as in a relational database. Support for relational semantics can be emulated via programming languages with sophisticated runtimes like Erlang, but I wouldn't classify any database supporting a Turing complete language with a sophisticated runtime as a relational database.