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Re: Insert using a subselect?

From: Francisco Reyes <lists(at)natserv(dot)com>
To: Jason Tan <jason(at)rebel(dot)rebel(dot)net(dot)au>
Cc: Pgsql Novice <pgsql-novice(at)postgresql(dot)org>
Subject: Re: Insert using a subselect?
Date: 2001-09-11 04:37:58
Message-ID: 20010911003340.W26176-100000@zoraida.natserv.net (view raw or flat)
Thread:
Lists: pgsql-novice
On Tue, 11 Sep 2001, Jason Tan wrote:

>
> On Mon, 10 Sep 2001, Francisco Reyes wrote:
>
> > Does PostgreSQL supports doing an insert with a subselect as it's value?
> > Something like:
> > insert into hearn_dates (date)
> > values ((select distinct merge_date from hearn));
> > The error I am getting is:
> > ERROR:  More than one tuple returned by a subselect used as an expression.
>
> Presumably you slect distinct is returing more than one value/tuple.
>
> Run it by hand and see what it returns.

drf=# select distinct merge_date from hearn;
 merge_date
------------
 2000-11-17
 2001-07-10
 2001-09-07
(3 rows)

3 rows on 1 column.



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