Re: -d option for pg_isready is broken

On 2013-12-11 08:56:43 -0500, Robert Haas wrote:
> > $ psql -d "hostaddr=127.0.0.1"
> > =# \conninfo
> > You are connected to database "postgres" as user "postgres" via socket
> > in "/tmp" at port "5432".
> 
> Yeah, that's true.  But the whole point of having both host and
> hostaddr seems to be that you can lie about where you're connecting.
> If you set host=some.pretty.domain.name hostaddr=1.2.3.4, the point is
> to say that you're connecting to the first while, under the covers,
> actually connecting to the second.  Now, I am unclear what value this
> has, but someone at some point evidently thought it was a good idea,
> so we need to be careful about changing it.

One use case is accessing a particular host when using DNS round robin
to standbys in combination with SSL.

Greetings,

Andres Freund

-- Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services