Re: MVCC performance issue

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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@xxxxxxxxx] 
Sent: Friday, November 12, 2010 5:54 PM
To: Kyriacos Kyriacou
Cc: pgsql-performance@xxxxxxxxxxxxxx
Subject: Re:  MVCC performance issue

12.11.10 15:47, Kyriacos Kyriacou ÐÐÐÐÑÐÐ(ÐÐ):
> 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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