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Thread: What is the difference between context of "sighup", "super-backend", and "backend" in pg_settings?

What is the difference between context of "sighup", "super-backend", and "backend" in pg_settings?

From
周书林
Date:
Hi, 

I am interested in the configuration parameter of Postgres. I found that the configuration parameters in context of "sighup", "super-backend", and "backend" are all required to send "SIGHUP" signal to postmaster for rereading configuration files. So my question is, what is the difference between them, except for the super-usre privilege requirment  between  "super-backend", and "backend"?

Sincerely,
Shulin

Re: What is the difference between context of "sighup", "super-backend", and "backend" in pg_settings?

From
Julien Rouhaud
Date:
On Sat, Jun 26, 2021 at 12:56:21PM +0800, 周书林 wrote:
> Hi,
> 
> I am interested in the configuration parameter of Postgres. I found that
> the configuration parameters in context of "sighup", "super-backend", and
> "backend" are all required to send "SIGHUP" signal to postmaster for
> rereading configuration files. So my question is, what is the difference
> between them, except for the super-usre privilege requirment  between
> "super-backend", and "backend"?

Please refer to the documentation for an exhaustive description:
https://www.postgresql.org/docs/current/view-pg-settings.html