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Re: small exclusion constraints patch

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Bruce Momjian <bruce(at)momjian(dot)us>, Jeff Davis <pgsql(at)j-davis(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: small exclusion constraints patch
Date: 2010-05-30 03:40:46
Message-ID: 28529.1275190846@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Sat, May 29, 2010 at 6:11 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Or, to put it differently: if nobody's done that in the past twenty
>> years, why is it likely to happen before 9.1?

> Hmm.  Well suppose we bet a dollar on whether that will happen or not.
>  In fact, if you promise not to read
> http://archives.postgresql.org/pgsql-hackers/2010-05/msg01175.php I'll
> make it two dollars.

Yes, I've seen Jeff's example.  It's a cute hack but somehow I doubt
that there is going to be a land rush to implement such things.
Can you point to any pre-existing example where anyone actually asked
for the ability to do that?

			regards, tom lane

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