Le jeu. 3 août 2023, 11:31, Matthias van de Meent <
boekewurm+postg...@gmail.com> a écrit :

> On Thu, 3 Aug 2023 at 10:37, Laetitia Avrot <laetitia.av...@gmail.com>
> wrote:
> >
> > Dear Hackers,
> >
> > One of my customers suggested creating a function that could return the
> server's hostname.
>
> Mostly for my curiosity: What would be their use case?
>

Thank you for showing interest in that patch.

>
For my customer,  their use case is to be able from an SQL client to double
check they're on the right host before doing things that could become a
production disaster.

I see also another use case: being able to identify postgres metrics on a
monitoring tool. Look at the hack pg_staviz uses here:
https://github.com/vyruss/pg_statviz/blob/7cd0c694cea40f780fb8b76275c6097b5d210de6/src/pg_statviz/libs/info.py#L30

Those are the  use cases I can think of.

I only see limited usability, considering that the local user's
> hostname can be very different from the hostname used in the url that
> connects to that PostgreSQL instance.
>

Agreed, depending on how hosts and dns are set,  it can be useless. But
normally,  companies have host making standards to avoid that.

Have a nice day,

Lætitia


> Kind regards,
>
> Matthias van de Meent
> Neon (https://neon.tech)
>

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