Re: looking for doc

David J,
If the whole purpose of a template is to be a basis for an additional user database than what admi tasks are defined in template 1 and template 0 does matter, because if template 0 would never be used as a db in it's own right, it's descendants would be.
For instance:
Template 0 does not contain the language encodings and collation settings specific to the os on which postgres is running template 1 does, so if you want to create a db with language settings other than what is in template 1 you would use template 0, and if template 0 does not contain "admin tasks" than it would have to be administered manually....

Sincerely,
Kasia

-----Original Message-----
From: pgsql-admin-owner(at)postgresql(dot)org [mailto:pgsql-admin-owner(at)postgresql(dot)org] On Behalf Of David Johnston
Sent: Monday, March 17, 2014 3:33 PM
To: pgsql-admin(at)postgresql(dot)org
Subject: Re: [ADMIN] looking for doc

David Johnston wrote
> i do not get what you mean by "admin tasks in template1, not in
> template0". If you mean why (assuming you are correct) doesn't the
> system VACUUM template0 that would be because it should never change
> and thus never require such maintenance. Since template1 can change
> it does require maintenance.

If you are referring to instructions to perform cluster-wide maintenance (i.e., create data, create role) while connected to the "template1" database that it mostly a matter of convenience. template0 should not be used (if it even can be connected to) for administrative tasks because template1 has to exist and is better suited from a logical standpoint to fulfill that role.
The postgres default database is also a viable candidate but often people will drop it if they feel it is not useful.

David J.

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