Re: Is there an easy and safe way to migrate a database to a new tablespace?

From: Aldor <aldnin(at)yahoo(dot)de>
To: pgsql-admin(at)postgresql(dot)org
Subject: Re: Is there an easy and safe way to migrate a database to a new tablespace?
Date: 2007-12-04 11:16:21
Message-ID: fj3cum$2qg8$1@news.hub.org
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Get the oid of your old tablespace:

select oid
from pg_tablespace
where spcname = '[OLDTABLESPACE]';

Get your tables from the old tablespace:

select select relname
from pg_class
where pc.reltablespace = [TABLESPACEOID]
----optional----
and relkind = 'r' ;

With "ALTER TABLE [TABLE] SET TABLESPACE [TABLESPACENAME];" you can
move your tables to the new destination.

Scott Marlowe wrote:
> On Nov 26, 2007 3:05 PM, David Young <randomfire(at)gmail(dot)com> wrote:
>> Hi,
>>
>> I recently converted to using a postgresql engine that support tablespaces.
>> There's a database that I would like to move to a new tablespace for
>> performance reasons. What is the safe and correct way of doing this? The
>> documentation is a bit sketchy on this.

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