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

On Wed, Jul 21, 2010 at 7:29 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Wed, Jul 21, 2010 at 1:07 AM, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
>> On Tue, Jul 20, 2010 at 11:14 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>>> OK, committed.
>>
>> When I specify the path of the directory for the Unix-domain socket
>> as the host, \conninfo doesn't mention that this connection is based
>> on the Unix-domain socket. Is this intentional?
>>
>> $ psql -h"/tmp" -c"\conninfo"
>> You are connected to database "postgres" on host "/tmp" at port "5432"
>> as user "postgres".
>>
>> I expected that something like
>>
>>    You are connected to database "postgres" via local socket on
>> "/tmp" at port "5432" as user "postgres".
>
> :-(
>
> No, I didn't realize the host field could be used that way.  It's true
> that you get a fairly similar message from \c, but that's not exactly
> intuitive either.
>
> rhaas=# \c - - /tmp -
> You are now connected to database "rhaas" on host "/tmp".

OK. The attached patch makes \conninfo command emit the following
message if the host begins with a slash:

$ psql -h/tmp -c"\conninfo"
You are connected to database "postgres" via local socket on
"/tmp" at port "5432" as user "postgres".

Similarly, it makes \c command emit the following message in that
case:

$ psql -hlocalhost -c"\c - - /tmp -"
You are now connected to database "postgres" via local socket on "/tmp".

Comments?

Regards,

--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center