To: pgsql-sql@postgresql.org
From: Thomas Kellerer <spam_eater@gmx.net>
Subject: Re: sql disaster - subquery error but delete continues
Date: Fri, 10 Sep 2010 12:07:37 +0200
Lines: 18
Message-ID: <i6d019$gto$1@dough.gmane.org>
References: <AANLkTi=KP2hDszZDeaYNROKfJx0N85Tbe5iwK9q+w+j1@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
	rv:1.8.1.23) Gecko/20090812 Thunderbird/2.0.0.23 Mnenhy/0.7.6.666
In-Reply-To: <AANLkTi=KP2hDszZDeaYNROKfJx0N85Tbe5iwK9q+w+j1@mail.gmail.com>

Greg Caulton, 10.09.2010 11:46:
> delete from form_record_details where form_record_id in (select form_record_id from forms where form_id= 40003656)
>
> Seems fine at 1am.
>
> However the subquery has a typo in it - there is no form_record_id in the forms table
>
> But rather than psql throwing an error...
>
> it deletes every row in the form_record_details table
>
> please tell me this is fixed since 8.3

This is not a bug.

I assume there is a form_record_id in the table form_record_details. As you have not used table prefixes or aliases, you are simply referencing the form_record_id from the "outer" table in the subquery.

Thomas