From: Tom Lane <tgl@sss.pgh.pa.us>
To: Craig Ringer <craig@postnewspapers.com.au>
Cc: pgsql-sql@postgresql.org
Subject: Re: Deferrable NOT NULL REFERENCES ... for two-way referential relationship
Date: Tue, 25 Mar 2008 11:07:38 -0400
Message-ID: <20511.1206457658@sss.pgh.pa.us> (raw)
In-Reply-To: <47E8AFDE.1080905@postnewspapers.com.au>
References: <47E8AFDE.1080905@postnewspapers.com.au>
Craig Ringer <craig@postnewspapers.com.au> writes:
> There are constraint triggers:
> http://www.postgresql.org/docs/8.3/static/sql-createconstraint.html
> and I could use one to enforce the NOT NULL on the table as a whole (at
> an acceptable cost in this case). However, I've seen some posts like
> this one:
> http://archives.postgresql.org/pgsql-hackers/2005-01/msg00882.php
> that suggest that constraint triggers are or have been deprecated.
> However, their removal is no longer on the TODO as far as I can tell.
Yeah, there is no longer any thought of removing them.
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, craig@postnewspapers.com.au
Subject: Re: Deferrable NOT NULL REFERENCES ... for two-way referential relationship
In-Reply-To: <20511.1206457658@sss.pgh.pa.us>
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