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Re: Symbolic Links to Tablespaces

From: "Heikki Linnakangas" <heikki(at)enterprisedb(dot)com>
To: "Tino Wildenhain" <tino(at)wildenhain(dot)de>
Cc: "Campbell, Lance" <lance(at)illinois(dot)edu>,"Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>,<pgsql-performance(at)postgresql(dot)org>
Subject: Re: Symbolic Links to Tablespaces
Date: 2008-05-26 20:26:15
Message-ID: 483B1CE7.9030201@enterprisedb.com (view raw or flat)
Thread:
Lists: pgsql-performance
Tino Wildenhain wrote:
> Heikki Linnakangas wrote:
> ...
>> Shut down the database server, replace the symbolic link in 
>> data/pg_tblspc to the new location, and start the server again. The 
>> location is also stored in pg_tablespace catalog; you'll need to fix 
>> it with "UPDATE pg_tablespace SET spclocation ='/someotherdir/xyz_tbl' 
>> WHERE spcname='xyz_tbl'", or pg_dumpall will still show the old location.
>>
> wouldn't alter tablespace be not more easy and less fragile?

Yes. But it requires copying all the data.

-- 
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com

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