Re: Create database bug in 8.1.3 ? -> solved

From: "Milen Kulev" <makulev(at)gmx(dot)net>
To: "'Douglas McNaught'" <doug(at)mcnaught(dot)org>
Cc: <pgsql-general(at)postgresql(dot)org>
Subject: Re: Create database bug in 8.1.3 ? -> solved
Date: 2006-04-09 14:15:51
Message-ID: 000701c65be0$1bb8b6d0$0a00a8c0@trivadis.com
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Hi Dough,
Thank you for your answer.
Now the reasons for using template0 DB are pretty clear (there a mini test-case
Of this in the mail you have just answered;)).

Thanks again.

Regards. Milen

-----Original Message-----
From: pgsql-general-owner(at)postgresql(dot)org [mailto:pgsql-general-owner(at)postgresql(dot)org] On Behalf Of Douglas McNaught
Sent: Sunday, April 09, 2006 4:05 PM
To: Milen Kulev
Cc: 'William ZHANG'; pgsql-general(at)postgresql(dot)org
Subject: Re: [GENERAL] Create database bug in 8.1.3 ? -> solved

"Milen Kulev" <makulev(at)gmx(dot)net> writes:

> Hi Wiliam,
> Than you very much for your prompt reply.
>
> I can not understand why pg_dump, pg_dumpall have hard-coded
> "template0" ?

The reason is this: any extra stuff that your database inherited from template1 (or whatever template you used) will be
dumped out as part of your database. There is no way to for pg_dump to tell what parts came from template1 and what
parts were added afterward, so it bases its dump on template0, which is a minimal database. If you based your restored
database on template1, you would get collisions as the restore tried to add objects that were already there from
template1.

Make sense?

-Doug

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