Re: Customize psql prompt to show current_role

[Laurenz Albe <laurenz.albe@xxxxxxxxxxx>]

On Mon, 2024-09-23 at 14:59 +0200, Dominique Devienne wrote:
> On Mon, Sep 23, 2024 at 2:51 PM Erik Wienhold <ewie@xxxxxxxxx> wrote:
> > You could instead use this:
> > 
> >     SELECT current_role \gset
> >     \set PROMPT1 '%n@%/ (%:current_role:)=%# '
> > 
> > But that won't work with subsequent SET ROLE commands.
> 
> Bummer... That was kinda the point, that it updates automatically.
> 
> Then I'd like to respectfully request a small enhancement to psql
> to support a new \r (or some other letter) for current_role in the prompt.

To get the current role, psql would have to query the database whenever
it displays the prompt.  That would be rather expensive...

Yours,
Laurenz Albe