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help / color / mirror / Atom feedFrom: Tom Lane <[email protected]>
To: David G. Johnston <[email protected]>
Cc: [email protected]
Cc: Pg Docs <[email protected]>
Subject: Re: Mention RETURNING ... INTO target
Date: Tue, 07 Jun 2022 17:07:30 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAKFQuwa6JQ9kBTOnCALcPOSqvAr7_xtT00ox5KD98n-AXn+7pA@mail.gmail.com>
References: <[email protected]>
<CAKFQuwa6JQ9kBTOnCALcPOSqvAr7_xtT00ox5KD98n-AXn+7pA@mail.gmail.com>
"David G. Johnston" <[email protected]> writes:
> On Tue, Jun 7, 2022 at 1:30 PM PG Doc comments form <[email protected]>
> wrote:
>> It looks like INSERT INTO ... RETURNING allows defining a target for the
>> returned values like SELECT ... INTO does.
> That isn't how it works. RETURNING simply turns INSERT into a result set
> producing SQL Command. And SQL doesn't have a concept of "target"
> (variables) in the sense you are thinking. pg/pgsql does, allowing result
> set data to be placed into variables.
Right. And in fact this *is* documented in the context of pl/pgsql:
https://www.postgresql.org/docs/current/plpgsql-statements.html#PLPGSQL-STATEMENTS-SQL-ONEROW
regards, tom lane
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