From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | Stephen Frost <sfrost(at)snowman(dot)net> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: pg_upgrade if 'postgres' database is dropped |
Date: | 2011-10-28 02:52:47 |
Message-ID: | 201110280252.p9S2qlF29274@momjian.us |
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Stephen Frost wrote:
-- Start of PGP signed section.
> * Bruce Momjian (bruce(at)momjian(dot)us) wrote:
> > I have not seen enough demand to make this a user-visible configuration.
> > We can just tell them to create a postgres database. Frankly, they
> > would have had to _remove_ the postgres database after initdb for it not
> > to be there, and they are instructed to change nothing about the new
> > database.
>
> Yes, they would have removed it because they didn't want it. As I
> recall, part of the agreement to create an extra database by default was
> that it could be removed if users didn't want it. Turning around and
> then saying "but things won't work if it's not there" isn't exactly
> supporting users who decide to remove it.
Well, you would have to remove it _after_ you did the pg_upgrade. Right
now if you do a normal dump/restore upgrade, you also have to re-remove
the postgres database. We don't have any mechanism to drop a database
as part of pg_dumpall's restore if it didn't exist in the old cluster.
> Regarding pg_dumpall and pg_restore, I'm pretty sure both of those can
> be configured to connect to other databases instead, including for
> globals.
Well, please show me the code, because the C code I showed you had the
'\connect postgres' string hardcoded in there.
--
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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