Re: Exclusion Constraint vs. Constraint Exclusion

From: David Fetter <david(at)fetter(dot)org>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PG Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Exclusion Constraint vs. Constraint Exclusion
Date: 2009-12-08 00:35:51
Message-ID: 20091208003551.GB2905@fetter.org
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On Mon, Dec 07, 2009 at 07:11:56PM -0500, Tom Lane wrote:
> David Fetter <david(at)fetter(dot)org> writes:
> > We have a very unfortunate naming situation with Jeff Davis's new
> > feature, namely the shorter name, which is one permutation away
> > from an existing and entirely unrelated feature: Constraint
> > Exclusion, which has to do with queries over partitioned tables
> > and like entities.
>
> > Renaming it, which I believe we should do Really Soon(TM), to
> > Operator [Exclusion] Constraints would fix this problem.
>
> Too late. I just spent about two days making that patch follow the
> "exclusion constraints" naming, and I'm not undoing that work.

It's not work you personally would have to do, and the confusion we've
already bought with this naming scheme is already evident.

Cheers,
David.
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
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