From: Jon Horsman <horshaq@gmail.com>
To: pgsql-sql@postgresql.org
Subject: Re: Foreign Unique Constraint
Date: Tue, 27 Mar 2007 23:51:35 -0400
Message-ID: <4f4c2a010703272051g94d88fdkc508a1b1ef189b34@mail.gmail.com> (raw)
In-Reply-To: <002501c770bd$a42f94a0$9b0014ac@wbaus090>
References: <4f4c2a010703270621h5137a4e5rb515a9be9034a543@mail.gmail.com>
<002501c770bd$a42f94a0$9b0014ac@wbaus090>
> Perhaps this...? It would work, but depending how many rows are in the
> table, it could become incredibly slow.
The max rows in either table would be about 1000 or so, which isn't
too many. There also should be a hole lot of inserting going on.
> ALTER TABLE table1 ADD CHECK (extension NOT IN (SELECT extension FROM
> table2));
I guess this is the functionality i was looking for but was hoping
there would be a cleaner way to do it.
Anyways, thanks to everyone who replied. I'll look into each of the
proposed solutions to see what best suits my needs. If anyone has a
different solution i'd still like to hear it.
Jon
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To: pgsql-sql@postgresql.org
Cc: horshaq@gmail.com
Subject: Re: Foreign Unique Constraint
In-Reply-To: <4f4c2a010703272051g94d88fdkc508a1b1ef189b34@mail.gmail.com>
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