Re: Psql meta-command conninfo+ - Mailing list pgsql-hackers

On 13.09.24 06:49, Hunaid Sohail wrote:
>
> $ bin/psql --port=5430 postgres
> psql (18devel)
> Type "help" for help.
>
> postgres=# \conninfo+
> You are connected to database "postgres" as user "hunaid" via socket
> in "/tmp" at port "5430".
>                                                   Connection Information
>  Protocol Version | SSL Connection | GSSAPI Authenticated | Client
> Encoding | Server Encoding | Session User | Backend P
> ID
>
------------------+----------------+----------------------+-----------------+-----------------+--------------+----------
> ---
>  3                | no             | no                   | UTF8      
>      | UTF8            | hunaid       | 55598
> (1 row)

Nice.

I just noticed that messages' order has been slightly changed. The
message "You are connected to database "postgres" as user "hunaid" via
socket in "/tmp" at port "5430" used to be printed after the table, and
now it is printed before.

$ /usr/local/postgres-dev/bin/psql -x "\
    hostaddr=0
    user=jim dbname=postgres
    port=54322" -c "\conninfo+"

You are connected to database "postgres" as user "jim" on host "0"
(address "0.0.0.0") at port "54322".
Connection Information
-[ RECORD 1 ]--------+--------
Protocol Version     | 3
SSL Connection       | no
GSSAPI Authenticated | no
Client Encoding      | UTF8
Server Encoding      | UTF8
Session User         | jim
Backend PID          | 2419033

It is IMHO a little strange because the "SSL connection" info keeps
being printed in the end. I would personally prefer if they're printed
together --- preferably after the table. But I'm not sure if there's any
convention for that.

$ /usr/local/postgres-dev/bin/psql -x "\
    host=server.uni-muenster.de
    hostaddr=127.0.0.1
    user=jim dbname=postgres
    port=54322
    sslmode=verify-full
    sslrootcert=server-certificates/server.crt
    sslcert=jim-certificates/jim.crt
    sslkey=jim-certificates/jim.key" -c "\conninfo+"

You are connected to database "postgres" as user "jim" on host
"server.uni-muenster.de" (address "127.0.0.1") at port "54322".
Connection Information
-[ RECORD 1 ]--------+--------
Protocol Version     | 3
SSL Connection       | yes
GSSAPI Authenticated | no
Client Encoding      | UTF8
Server Encoding      | UTF8
Session User         | jim
Backend PID          | 2421556

SSL connection (protocol: TLSv1.3, cipher: TLS_AES_256_GCM_SHA384,
compression: off, ALPN: postgresql)

Also, there are a few compilation warnings regarding const qualifiers:

command.c:810:49: warning: assignment discards ‘const’ qualifier from
pointer target type [-Wdiscarded-qualifiers]
  810 |                                 client_encoding =
PQparameterStatus(pset.db, "client_encoding");
      |                                                 ^
command.c:811:49: warning: assignment discards ‘const’ qualifier from
pointer target type [-Wdiscarded-qualifiers]
  811 |                                 server_encoding =
PQparameterStatus(pset.db, "server_encoding");
      |                                                 ^
command.c:812:46: warning: assignment discards ‘const’ qualifier from
pointer target type [-Wdiscarded-qualifiers]
  812 |                                 session_user =
PQparameterStatus(pset.db, "session_authorization");


-- 
Jim