Horton

Re: correction suggestion for https://www.postgresql.org/docs/17/auth-username-maps.html

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: "David G. Johnston" <david.g.johnston@gmail.com>
Cc: alexey.shishkin@enterprisedb.com, pgsql-docs@lists.postgresql.org
Date: 2025-07-13T19:49:30Z
Lists: pgsql-docs 
"David G. Johnston" <david.g.johnston@gmail.com> writes:
> (Likewise, the system-username regexp can contain more than one capture -
> which are only available later in the system-username regexp - though again
> it seems unlikely anyone is going to use that feature in this context.)

Yeah, I was thinking about that while working on the multiple-\1
patch.  Sooner or later somebody is going to ask why they can't
use \2, \3, etc in the database-username.  I think it would be a
pretty minor finger exercise to make the new code do that, but
I refrained for now.

> I'm good with this.

Cool.  I'll push after the beta2 release freeze lifts.

			regards, tom lane

Commits

  1. Doc: clarify description of regexp fields in pg_ident.conf.

  2. In username-map substitution, cope with more than one \1.