From: Nick Johnson <arachnid@notdot.net>
To: PostgreSQL SQL <pgsql-sql@postgresql.org>
Subject: Re: preventing deletion of a row
Date: Tue, 07 Jun 2005 17:59:18 +1200
Message-ID: <42A537B6.8040902@notdot.net> (raw)
In-Reply-To: <200506071059.17689.lawgon@thenilgiris.com>
References: <200506071059.17689.lawgon@thenilgiris.com>
Kenneth Gonsalves wrote:
>hi
>i have a table of the type:
>
>id serial unique,
>name varchar(50),
>fixed boolean default FALSE
>
>if the value of 'fixed' is TRUE, then this row cannot be deleted. How
>do i enforce this condition?
>
>
Try this:
CREATE RULE tablename_delete AS ON DELETE TO tablename WHERE OLD.fixed =
TRUE DO INSTEAD NOTHING;
-Nick Johnson
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To: pgsql-sql@postgresql.org
Cc: arachnid@notdot.net
Subject: Re: preventing deletion of a row
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