Hey,
I expected the following to tell me: database "testdb;" does not exist
Instead the connection attempt was successful.
postgres=# create database testdb;
CREATE DATABASE
postgres=# \c testdb;
You are now connected to database "testdb" as user "vagrant".
Specifically, the trailing semi-colon on the testdb is being treated,
apparently, as a second parameter to \c (or just plain ignored which seems
wrong too); which itself is a surprise given the absence of whitespace, and
\c documents that - passed as a parameter is an acceptable way to omit a
parameter so the semi-colon should have been considered as a username.
David J.