From: Kyriacos Kyriacou <kyriacosk@prime-tel.com>
To: Vitalii Tymchyshyn <tivv00@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: MVCC performance issue
Date: Fri, 12 Nov 2010 18:18:18 +0200
Message-ID: <8BCBF9DB739F034B87FE7C7D30EAE55C279F0551@hqex2k.francoudi.com> (raw)
References: <8BCBF9DB739F034B87FE7C7D30EAE55C279F054F@hqex2k.francoudi.com>
<4CDD62FF.4020009@gmail.com>
This was done already as a workaround after identifying this problem.
I just gave it as an example.
-----Original Message-----
From: Vitalii Tymchyshyn [mailto:tivv00@gmail.com]
Sent: Friday, November 12, 2010 5:54 PM
To: Kyriacos Kyriacou
Cc: pgsql-performance@postgresql.org
Subject: Re: [PERFORM] MVCC performance issue
12.11.10 15:47, Kyriacos Kyriacou написав(ла):
> PROBLEM DECRIPTION
> ------------------
> As an example, consider updating the "live" balance
> of a customer for each phone call where the entire customer record has
> to be duplicated again and again upon each call just for modifying a
> numeric value!
>
Have you considered splitting customer record into two tables with
mostly read-only data and with data that is updated often? Such 1-1
relationship can make a huge difference to performance in your case. You
can even try to simulate old schema by using an updateable view.
Best regards, Vitalii Tymchyshyn
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Subject: Re: MVCC performance issue
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