Re: template0 database comment

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Greg Stark <gsstark(at)mit(dot)edu>, Dave Page <dpage(at)pgadmin(dot)org>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: template0 database comment
Date: 2011-03-15 15:26:56
Message-ID: 201103151526.p2FFQuq23698@momjian.us
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Applied. I did not bump the catalog version because they are just
comments. I assume that is the right procedure.

---------------------------------------------------------------------------

Bruce Momjian wrote:
> Tom Lane wrote:
> > Bruce Momjian <bruce(at)momjian(dot)us> writes:
> > > Tom Lane wrote:
> > >> Yeah, I think that the right way to approach this is to have initdb
> > >> comment *both* of those databases. I don't like that specific wording
> > >> for template0 though. Maybe
> > >>
> > >> template0: unmodified copy of original template1 database
> > >> template1: default template for new databases
> >
> > > Tom, the current comment for "template1" is "default template database".
> > > Do you like your above wording better? It does make it slighly longer.
> >
> > Actually that's Greg's wording. Yeah I do like it better. If you don't
> > already know what a template database is, "template1: default template
> > database" is going to convey precisely nothing to you. Greg's version
> > at least gives you the information that it has got something to do with
> > making new databases, which would probably be enough to prompt people to
> > go look in the right part of the docs.
>
> OK, I have modified the comments to be clearer about their purpose:
>
> test=> \l+
> Name | Description
> -----------+--------------------------------------------
> postgres | default administrative connection database
> template0 | unmodifiable empty database
> template1 | default template for new databases
>
> --
> Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
> EnterpriseDB http://enterprisedb.com
>
> + It's impossible for everything to be true. +

[ text/x-diff is unsupported, treating like TEXT/PLAIN ]

> diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
> new file mode 100644
> index acd2514..b2da1cf
> *** a/src/bin/initdb/initdb.c
> --- b/src/bin/initdb/initdb.c
> *************** make_template0(void)
> *** 1976,1981 ****
> --- 1976,1983 ----
> "REVOKE CREATE,TEMPORARY ON DATABASE template1 FROM public;\n",
> "REVOKE CREATE,TEMPORARY ON DATABASE template0 FROM public;\n",
>
> + "COMMENT ON DATABASE template0 IS 'unmodifiable empty database';\n",
> +
> /*
> * Finally vacuum to clean up dead rows in pg_database
> */
> *************** make_postgres(void)
> *** 2011,2016 ****
> --- 2013,2019 ----
> const char **line;
> static const char *postgres_setup[] = {
> "CREATE DATABASE postgres;\n",
> + "COMMENT ON DATABASE postgres IS 'default administrative connection database';\n",
> NULL
> };
>
> diff --git a/src/include/catalog/pg_database.h b/src/include/catalog/pg_database.h
> new file mode 100644
> index 6419d65..ee4c858
> *** a/src/include/catalog/pg_database.h
> --- b/src/include/catalog/pg_database.h
> *************** typedef FormData_pg_database *Form_pg_da
> *** 71,77 ****
> #define Anum_pg_database_datacl 12
>
> DATA(insert OID = 1 ( template1 PGUID ENCODING "LC_COLLATE" "LC_CTYPE" t t -1 0 0 1663 _null_));
> ! SHDESCR("default template database");
> #define TemplateDbOid 1
>
> #endif /* PG_DATABASE_H */
> --- 71,77 ----
> #define Anum_pg_database_datacl 12
>
> DATA(insert OID = 1 ( template1 PGUID ENCODING "LC_COLLATE" "LC_CTYPE" t t -1 0 0 1663 _null_));
> ! SHDESCR("default template for new databases");
> #define TemplateDbOid 1
>
> #endif /* PG_DATABASE_H */

>
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--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +

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