Re: Database size

Hello group,

Moreover a reindex (REINDEX <name of your database> while in pgsql) followed
by an ANALYZE will claim more space.

Regards
J6M
----- Original Message -----
From: "Francisco Reyes" <lists@stringsutils.com>
To: "choksi" <choksi.dhaval@gmail.com>
Cc: <pgsql-performance@postgresql.org>
Sent: Friday, June 15, 2007 7:15 PM
Subject: Re: [PERFORM] Database size


> choksi writes:
>
>> I had a database which uses to hold some 50 Mill records and disk
>> space used was 103 GB. I deleted around 34 Mill records but still the
>> disk size is same. Can some on please shed some light on this.
>
> When records are deleted they are only marked in the database.
> When you run vacuum in the database that space will be marked so new data
> can use the space.
>
> To lower the space used you need to run "vacuum full".
> That however can take a while and I think it will lock the database for
> some operations.