From: Tom Lane <tgl@sss.pgh.pa.us>
To: Justin Pryzby <pryzby@telsasoft.com>
cc: Fabien COELHO <coelho@cri.ensmp.fr>,
        Alvaro Herrera <alvherre@2ndquadrant.com>,
        David Steele <david@pgmasters.net>, pgsql-hackers@postgresql.org,
        "Bossart, Nathan" <bossartn@amazon.com>,
        Thomas Munro <thomas.munro@gmail.com>
Subject: Re: pg_ls_tmpdir to show directories and shared filesets (and
 pg_ls_*)
In-reply-to: <20200317190401.GY26184@telsasoft.com>
References: <20200316214806.GQ26184@telsasoft.com>
 <20200316221736.GA15635@alvherre.pgsql>
 <20200317031427.GU26184@telsasoft.com>
 <alpine.DEB.2.21.2003170828250.17584@pseudo>
 <20200317190401.GY26184@telsasoft.com>
Comments: In-reply-to Justin Pryzby <pryzby@telsasoft.com>
	message dated "Tue, 17 Mar 2020 14:04:01 -0500"
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <17987.1584472261.1@sss.pgh.pa.us>
Content-Transfer-Encoding: quoted-printable
Date: Tue, 17 Mar 2020 15:11:01 -0400
Message-ID: <17988.1584472261@sss.pgh.pa.us>
Precedence: bulk

Justin Pryzby <pryzby@telsasoft.com> writes:
> It seems like the only way to make variable number of arguments is is wi=
th
> multiple entries in pg_proc.dat, one for each "number of" arguments.  Is=
 that
> right ?

Another way to do it is to have one entry, put the full set of arguments
into the initial pg_proc.dat data, and then use CREATE OR REPLACE FUNCTION
later during initdb to install some defaults.  See existing cases in
system_views.sql, starting about line 1180.  Neither way is especially
pretty, so take your choice.

			regards, tom lane