From: Andreas Kretschmer <akretschmer@despammed.com>
To: pgsql-sql@postgresql.org
Subject: Re: [despammed] Balance Calculation
Date: Sun, 22 May 2005 10:17:53 +0200
Message-ID: <20050522081753.GA5136@webserv.wug-glas.de> (raw)
In-Reply-To: <033001c55e85$1801a730$1f00a8c0@middinks>
References: <033001c55e85$1801a730$1f00a8c0@middinks>
am 22.05.2005, um 12:15:56 +0800 mailte Muhyiddin A.M Hayat folgendes:
Nice SQL ;-)
>
> everything is ok, but when record > 1000000 that query eat all my cpu
> process and take a long time, i have wait for 3 mimutes but query
I think, because for every record in your result is a full table scan
required to calculate the balance.
>
> 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 for
insert/update that calculates the balance for the transactions-table?
I think, this should solve your perfomance-problem.
Regards, Andreas
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Andreas Kretschmer (Kontakt: siehe Header)
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To: pgsql-sql@postgresql.org
Cc: akretschmer@despammed.com
Subject: Re: [despammed] Balance Calculation
In-Reply-To: <20050522081753.GA5136@webserv.wug-glas.de>
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