Re: Space for pg_dump

--- On Tue, 3/31/09, Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> wrote:

> From: Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
> Subject: Re: [GENERAL] Space for pg_dump
> To: "SHARMILA JOTHIRAJAH" <sharmi_jo(at)yahoo(dot)com>
> Cc: "General postgres mailing list" <pgsql-general(at)postgresql(dot)org>
> Date: Tuesday, March 31, 2009, 11:49 AM
> On Tue, Mar 31, 2009 at 7:57 AM,
> SHARMILA JOTHIRAJAH
> <sharmi_jo(at)yahoo(dot)com>
> wrote:
> >
> > Hi,
> > How much space does a pg_dump usually take?
> > One of my databases is 600GB.... How much space do I
> need to dump this?
>
> Note you can find out by doing:
>
> pg_dump dbname | wc
>
Yes...I could find the space used after creating the dump.

But I need to pre-allocate some space for storing these dumps (there are other databases too that needs to be dumped). So Im trying to find a space estimate ....
Do you have a rough estimate of pg_dump in general... like 1/4 th of the database size or something like that...I just need a rough estimate for now

Thanks
Sharmila