From: Shridhar Daithankar <shridhar_daithankar@persistent.co.in>
To: Manfred Koizar <mkoi-pg@aon.at>
To: pgsql-hackers@postgresql.org, pgsql-general <pgsql-general@postgresql.org>
To: pgsql-performance@postgresql.org
Subject: Re: Large databases, performance
Date: Wed, 09 Oct 2002 13:37:13 +0530
Message-ID: <3DA43109.23106.1978CDFD@localhost> (raw)
In-Reply-To: <a2n7qu0qen2ne1chalomdgt5n1etgb4uk3@4ax.com>
References: <3DA1A331.21316.F7E742B@localhost>
On 9 Oct 2002 at 10:00, Manfred Koizar wrote:
> On Mon, 07 Oct 2002 15:07:29 +0530, "Shridhar Daithankar"
> <shridhar_daithankar@persistent.co.in> wrote:
> >Only worry is database size. Postgresql is 111GB v/s 87 GB for mysql.
>
> Shridhar,
>
> here is an implementation of a set of user types: char3, char4,
> char10. Put the attached files into a new directory contrib/fixchar,
> make, make install, and run fixchar.sql through psql. Then create
> your table as
> CREATE TABLE tbl (
> type int,
> esn char10,
> min char10,
> datetime timestamp,
> opc0 char3,
> ...
> rest char4,
> field0 int,
> field1 char4,
> ...
> )
>
> This should save 76 bytes per heap tuple and 12 bytes per index tuple,
> giving a database size of ~ 76 GB. I'd be very interested how this
> affects performance.
>
> Code has been tested for v7.2, it crashes on v7.3 beta 1. If this is
> a problem, let me know.
Thank you very much for this. I would certainly give it a try. Please be
patient as next test is scheuled on monday.
Bye
Shridhar
--
love, n.: When it's growing, you don't mind watering it with a few tears.
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To: pgsql-sql@postgresql.org
Cc: shridhar_daithankar@persistent.co.in, mkoi-pg@aon.at, pgsql-general@postgresql.org, pgsql-performance@postgresql.org
Subject: Re: Large databases, performance
In-Reply-To: <3DA43109.23106.1978CDFD@localhost>
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