Re: measuring disk usage of records

Thanks for the very quick reply... I didn't know about the dbsize stuff,
they may help. Unfortunately, the records are mixed together.

I may have to use some judicious estimating... I'm just wondering if there's
something more scientific.

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-----Original Message-----
From: pgsql-general-owner@postgresql.org
[mailto:pgsql-general-owner@postgresql.org] On Behalf Of P.J. "Josh" Rovero
Sent: Wednesday, December 31, 2003 4:20 PM
To: Matthew Nuzum
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] measuring disk usage of records

Use contrib/dbsize, then you'll be able to

select relation_size('<table_name>');
select database_size('<database_name>');

Answers come back in bytes....

If the customer records are mixed with different customer
data in the same tables, it's a bit more complicated.

Matthew Nuzum wrote:

> Therefore, we'd like to avoid falling into the same trap and get a good
> understanding of how much storage space our customer's data is actually
> using.
>
> Here's the problem... A customer's data may be scattered across multiple
> tables.  Some customers have X,000 records in table A, some have Y,000
> records in table B and etc.  There's no way it can be as simple as saying
> "database takes X GB for Y customers so usage is X/Y"
>
> Does anyone have any suggestions that can help me to get access to this
> information?

--
P. J. "Josh" Rovero                                 Sonalysts, Inc.
Email: rovero@sonalysts.com    www.sonalysts.com    215 Parkway North
Work: (860)326-3671 or 442-4355                     Waterford CT 06385
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