Re: small exclusion constraints patch

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Jeff Davis <pgsql(at)j-davis(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: small exclusion constraints patch
Date: 2010-07-16 00:46:22
Message-ID: 2047.1279241182@sss.pgh.pa.us
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Jeff Davis <pgsql(at)j-davis(dot)com> writes:
> Currently, the check for exclusion constraints performs a sanity check
> that's slightly too strict -- it assumes that a tuple will conflict with
> itself. That is not always the case: the operator might be "<>", in
> which case it's perfectly valid for the search for conflicts to not find
> itself.

> This patch simply removes that sanity check, and leaves a comment in
> place.

Applied (for 9.1 only).

regards, tom lane

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