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From: Scott Ribe <[email protected]>
To: David G. Johnston <[email protected]>
Cc: Pgsql-admin <[email protected]>
Subject: Re: update behavior
Date: Thu, 19 Jun 2025 11:39:54 -0600
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<CAKFQuwbwAbbk6KUKXyX2VxpX3aUDhS5Zd__2JKQXdhH5zHaB4g@mail.gmail.com>
	<[email protected]>

> On Jun 19, 2025, at 11:34 AM, Scott Ribe <[email protected]> wrote:
> 
>> On Jun 19, 2025, at 11:31 AM, David G. Johnston <[email protected]> wrote:
>> 
>> Correct.  You need a trigger to prevent the update.  There is one provided: suppress_redundant_updates_trigger()
> 
> Or, in my case that prompted this question, I need a WHERE clause for the ON CONFLICT UPDATE...

Wait, should suppress_redundant_updates_trigger be used even in this case? Would it suppress the update before the constraint checks and invocation of the ON CONFLICT clause???

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