Re: pg_log_backend_memory_contexts() and log level

On Wed, Jan 26, 2022 at 10:46 AM Bharath Rupireddy
<bharath(dot)rupireddyforpostgres(at)gmail(dot)com> wrote:
>
> On Wed, Jan 26, 2022 at 9:48 AM Fujii Masao <masao(dot)fujii(at)oss(dot)nttdata(dot)com> wrote:
> >
> > Hi,
> >
> > pg_log_backend_memory_contexts() should be designed not to send the messages about the memory contexts to the client regardless of client_min_messages. But I found that the message "logging memory contexts of PID %d" can be sent to the client because it's ereport()'d with LOG level instead of LOG_SERVER_ONLY. Is this a bug, and shouldn't we use LOG_SERVER_ONLY level to log that message? Patch attached.
>
> +1. The patch LGTM.

While we are here, I think it's enough to have the
has_function_privilege, not needed to set role regress_log_memory and
then execute the function as we already have code covering the
function above (SELECT
pg_log_backend_memory_contexts(pg_backend_pid());). Thought?

SELECT has_function_privilege('regress_log_memory',
'pg_log_backend_memory_contexts(integer)', 'EXECUTE'); -- yes

SET ROLE regress_log_memory;
SELECT pg_log_backend_memory_contexts(pg_backend_pid());
RESET ROLE;

Regards,
Bharath Rupireddy.