Re: [SPAM]Re: Questions about 9.0 release note

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Takahiro Itagaki <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp>, Robert Haas <robertmhaas(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [SPAM]Re: Questions about 9.0 release note
Date: 2010-04-01 14:04:47
Message-ID: 15291.1270130687@sss.pgh.pa.us
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Bruce Momjian <bruce(at)momjian(dot)us> writes:
> + Exclusion constraints ensure that if any two rows are compared on
> + the specified columns or expressions using the specified operators,
> + at least one of these operator comparisons will be false. The syntax is:

Isn't that phrasing outright incorrect? Consider nulls.

regards, tom lane

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