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

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От Robert Haas
Тема Re: psql \conninfo command (was: Patch: psql \whoami option)
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Msg-id AANLkTinz81pWtP0mmA2apM8nQSzzFEegP8bkJCmAqFHM@mail.gmail.com
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Ответ на psql \conninfo command (was: Patch: psql \whoami option)  (David Christensen <david@endpoint.com>)
Ответы Re: psql \conninfo command (was: Patch: psql \whoami option)  (David Christensen <david@endpoint.com>)
Re: psql \conninfo command (was: Patch: psql \whoami option)  (David Christensen <david@endpoint.com>)
Список pgsql-hackers
On Sun, Jul 18, 2010 at 2:00 PM, David Christensen <david@endpoint.com> wrote:
> Updated the commitfest entry with the patch, updated the title to reflect the actual name of the command, and marked
asready 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.

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?

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise Postgres Company

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