Re: psql \conninfo command (was: Patch: psql \whoami option)

On Jul 19, 2010, at 10:34 PM, Robert Haas wrote:

> On Sun, Jul 18, 2010 at 2:00 PM, David Christensen <david(at)endpoint(dot)com> wrote:
>> Updated the commitfest entry with the patch, updated the title to reflect the actual name of the command, and marked as ready for committer.
>
> I took a look at this patch. One problem is that it doesn't handle
> the case where there is no database connection (for example, shut down
> the database with pg_ctl, then do select 1, then do \conninfo). I've
> fixed that in the attached version.

Thanks, I hadn't considered that case.

> However, I'm also wondering about the output format. I feel like it
> would make sense to use a format similar to what we do for \c, which
> looks like this:
>
> You are now connected to database "%s".
>
> It prints out more parameters if they've changed. The longest
> possible version is:
>
> You are now connected to database "%s" on host "%s" at port "%s" as user "%s".
>
> My suggestion is that we use the same format, except (1) always
> include all the components, since that's the point; (2) don't include
> the word "now"; and (3) if there is no host, then print "via local
> socket" rather than on host...port.... So where the current patch
> prints:
>
> Connected to database: "rhaas", user: "rhaas", port: 5432 via local
> domain socket
>
> I would propose to print instead:
>
> You are connected to database "rhaas" via local socket as user "rhaas".
>
> If people strongly prefer the way the patch does it now, I don't think
> it's horrible... but it seems like it would be nicer to be somewhat
> consistent with the existing message. Thoughts?

+1 from me; I don't care what color the bikeshed is, as long as it gets the point across, which this does, and is consistent to boot.

Regards,

David
--
David Christensen
End Point Corporation
david(at)endpoint(dot)com