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Re: Extended customizing, SQL functions,

From: Jonathan Gardner <jgardner(at)jonathangardner(dot)net>
To: pgsql(at)mohawksoft(dot)com
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Extended customizing, SQL functions,
Date: 2004-05-29 00:13:28
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Friday 28 May 2004 04:08 pm, pgsql(at)mohawksoft(dot)com wrote:
> No transactions.

Then it won't work. Let's say we take your example. The variable "s" is 
supposed to be the sum of a column in a table.

When someone modifies the data in the table, when is "s" adjusted? What if 
it is modified but the transaction is aborted? Who sees the "correct" value 
of "s" at any point in time?

Jonathan Gardner

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