From: Andres Freund <andres@anarazel.de>
To: Peter Geoghegan <pg@heroku.com>
Cc: hlinnaka <hlinnaka@iki.fi>
Cc: Jeff Janes <jeff.janes@gmail.com>
Cc: Stephen Frost <sfrost@snowman.net>
Cc: Dean Rasheed <dean.a.rasheed@gmail.com>
Cc: Bruce Momjian <bruce@momjian.us>
Cc: Pg Hackers <pgsql-hackers@postgresql.org>
Subject: Re: INSERT ... ON CONFLICT UPDATE/IGNORE 4.0
Date: Wed, 6 May 2015 17:20:07 +0200
Message-ID: <20150506152007.GN9855@alap3.anarazel.de> (raw)
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On 2015-05-05 15:00:56 -0700, Peter Geoghegan wrote:
> Locking the row is not "nothing", though. If you want to lock the row,
> use an UPSERT with a tautologically false WHERE clause (like "WHERE
> false").
That's not the same. For one it "breaks" RETURNING which is a death
knell, for another it's not exactly obvious.
Greetings,
Andres Freund
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Cc: andres@anarazel.de, pg@heroku.com, hlinnaka@iki.fi, jeff.janes@gmail.com, sfrost@snowman.net, dean.a.rasheed@gmail.com, bruce@momjian.us, pgsql-hackers@postgresql.org
Subject: Re: INSERT ... ON CONFLICT UPDATE/IGNORE 4.0
In-Reply-To: <20150506152007.GN9855@alap3.anarazel.de>
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