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From: Pavel Stehule <pavel.stehule@gmail.com>
To: Andreas Joseph Krogh <andreak@officenet.no>
Cc: pgsql-sql@postgresql.org
Subject: Re: Having elements of an int[]-array reference other tables
Date: Mon, 21 Jan 2008 12:29:47 +0100
Message-ID: <162867790801210329o1e56fafsd908365a911db28a@mail.gmail.com> (raw)
In-Reply-To: <200801211216.31875.andreak@officenet.no>
References: <200801211216.31875.andreak@officenet.no>

Hello,

it isn't possible without custom triggers.

regards
Pavel Stehule



On 21/01/2008, Andreas Joseph Krogh <andreak@officenet.no> wrote:
> Hi.
> Is it possible in PG to have elements in an int[]-array reference another
> int-column in another table? What I want is it to behave as a foreign key.
>
> create table master(
> my_id integer primary key
> );
>
> create table test(
> id serial primary key,
> id_array integer[] references master(my_id)
> );
>
> It would be nice if one could have elements in test.id_array to reference
> elements in master.my_id, with all the benefits of ON DELETE | UPDATE etc.
>
> I know I can accomplish this with triggers, but if there exists something
> built-in I'd like to know.
>
> --
> Andreas Joseph Krogh <andreak@officenet.no>
> Senior Software Developer / Manager
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