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From: Karsten Hilbert <[email protected]>
To: [email protected]
To: pgsql-general <[email protected]>
Subject: Re: unique constraint violation on multiple-rows update
Date: Sun, 19 Apr 2026 16:09:18 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAKFQuwZp1Qcdg9G_HEwDjNvvbHtZxU1Sz7xkJCm+G+psqwpO3Q@mail.gmail.com>
References: <[email protected]>
	<[email protected]>
	<CAKFQuwZp1Qcdg9G_HEwDjNvvbHtZxU1Sz7xkJCm+G+psqwpO3Q@mail.gmail.com>

Am Sun, Apr 19, 2026 at 06:54:02AM -0700 schrieb David G. Johnston:

> > > Running that does violate the (non-deferred) UNIQUE
> > > constraint on the table column, however.
> 
> You know about deferred constraints, you should use them here.  This is one
> of the key use cases motivating their existence.

Indeed. I was of the mistaken impression that UNIQUE
constraints were not deferrable ...

:-)

Works, thanks,
Karsten
-- 
GPG  40BE 5B0E C98E 1713 AFA6  5BC0 3BEA AC80 7D4F C89B

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