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Message-ID: <42d8505e0505220203bd3cb94@mail.gmail.com>
Date: Sun, 22 May 2005 11:03:19 +0200
From: LAMBEAU Bernard <blambeau@gmail.com>
Reply-To: blambeau@chefbe.net
To: Andreas Kretschmer <akretschmer@despammed.com>,
	pgsql-sql@postgresql.org
Subject: Re: [despammed] Balance Calculation
In-Reply-To: <20050522084250.GA5579@webserv.wug-glas.de>
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References: <033001c55e85$1801a730$1f00a8c0@middinks>
	<20050522081753.GA5136@webserv.wug-glas.de>
	<20050522084250.GA5579@webserv.wug-glas.de>

Do you tried to create an index on the account column ?

I think it may help.

Regards

---------------------------------------------------------------------------=
----------
Bernard LAMBEAU
D=E9partement d'Ing=E9nierie Informatique
Universit=E9 Catholique de Louvain-La-Neuve (Belgium)

On 5/22/05, Andreas Kretschmer <akretschmer@despammed.com> wrote:
> am  22.05.2005, um 10:17:53 +0200 mailte Andreas Kretschmer folgendes:
> > > can you help me how to fix them.
> > > Can I using function to fix them (how?)
> >
> > It is possible to create a extra table for the balance and a trigger fo=
r
> > insert/update that calculates the balance for the transactions-table?
> >
> >
> > I think, this should solve your perfomance-problem.
>=20
> Sorry, this is not the solution for your problem, because this provide
> only the actual balance for a single account, but not the history.
>=20
> Mmh...
>=20
> A extra table with the oid and the balance for every row in
> transactions. Then you can do a index scan, but you need also a trigger
> that insert every transaction in this table and calculate the balance.
>=20
>=20
>=20
>=20
> Regards
> --
> Andreas Kretschmer    (Kontakt: siehe Header)
> Heynitz:  035242/47212,      D1: 0160/7141639
> GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net
>  =3D=3D=3D    Schollglas Unternehmensgruppe    =3D=3D=3D
>=20
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