Re: I am being interviewed by OReilly

...
> I think there is room for an "also called postgres" push among our users
> and for marketing.  Oracle is changing the name of their server all the
> time to position it for marketing so having a secondary name doesn't
> hurt.  Our _official_ name is PostgreSQL.

We have had the following in our documentation for years (I remember
writing it ;)

4. Terminology and Notation

The terms "PostgreSQL" and "Postgres" will be used interchangeably to
refer to the software that accompanies this documentation.
...

I fairly recently went through and scrubbed the docs, which at the time
were (if I remember correctly) roughly 60/40 split between the two forms
of name. I think it is not helpful to try to emphasize the "short form",
but we have always acknowledged that it exists and folks have always
used both forms. It just isn't that big a deal, and it just isn't that
confusing.

                  - Thomas