From: Tom Lane <tgl@sss.pgh.pa.us>
To: Laurenz Albe <laurenz.albe@cybertec.at>
cc: Dominique Devienne <ddevienne@gmail.com>, Erik Wienhold <ewie@ewie.name>,
        Asad Ali <asadalinagri@gmail.com>, pgsql-general@postgresql.org
Subject: Re: Customize psql prompt to show current_role
In-reply-to: <f65faa53285ca29541356809ee1c49b7ed04a33a.camel@cybertec.at>
References: <CAFCRh-_VwScttZi4R8grSd-b=7qguAnSzXp_+jbdpUkp=TfxPQ@mail.gmail.com> <CAJ9xe=ttSfESR=z2YZycow8DubyfQeOgOzMDUCE95f2vN-TzFg@mail.gmail.com> <ac0884a4-daee-465e-bc82-8e3585998053@ewie.name> <CAFCRh--uBYcJ0gyBakSAzby0CmM2gvjo4Wa9OF79Od+-PXQP0A@mail.gmail.com> <f65faa53285ca29541356809ee1c49b7ed04a33a.camel@cybertec.at>
Comments: In-reply-to Laurenz Albe <laurenz.albe@cybertec.at>
	message dated "Mon, 23 Sep 2024 15:05:10 +0200"
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Date: Mon, 23 Sep 2024 10:54:55 -0400
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Laurenz Albe <laurenz.albe@cybertec.at> writes:
> To get the current role, psql would have to query the database whenever
> it displays the prompt.  That would be rather expensive...

See previous discussion:

https://www.postgresql.org/message-id/flat/CAFj8pRBFU-WzzQhNrwRHn67N0Ug8a9=
-0-9BOo69PPtcHiBDQMA%40mail.gmail.com

At the time I didn't like the idea too much, but now that we've seen
a second independent request, maybe our opinion of its value should
go up a notch.

			regards, tom lane