El día domingo, abril 25, 2021 a las 01:54:49p. m. +0200, Matthias Apitz 
escribió:

...

> # select * from pg_stat_activity where client_port = 52288;
> 
>  datid  | datname |  pid  | leader_pid | usesysid | usename |        
> application_name         | client_addr | client_hostname | client_port |      
>     backend_start          |           xact_start            |           
> query_start           |          state_change           | wait_event_type | 
> wait_event |        state        | backend_xid | backend_xmin |        query  
>       |  backend_type  
> --------+---------+-------+------------+----------+---------+---------------------------------+-------------+-----------------+-------------+---------------------------------+---------------------------------+---------------------------------+---------------------------------+-----------------+------------+---------------------+-------------+--------------+---------------------+----------------
>  951941 | sisis   | 31894 |            |    16384 | sisis   | SunRise DBCALL 
> V7.2 (pid=31864) | 127.0.0.1   |                 |       52288 | 25.04.2021 
> 10:57:15.922137 CEST | 25.04.2021 10:57:15.968081 CEST | 25.04.2021 
> 10:57:16.051256 CEST | 25.04.2021 10:57:16.051273 CEST | Client          | 
> ClientRead | idle in transaction |    18314796 |     18314796 | fetch 
> per_kette_seq | client backend

Having solved this issue, one last question: Is there any good way for a
C-written or ESQL/C-written client to get the local port number or even
the PID of the PostgreSQL server process on the other end of the
connection for logging/tracing purpose?

Thanks

        matthias
-- 
Matthias Apitz, ✉ g...@unixarea.de, http://www.unixarea.de/ +49-176-38902045
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an!
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