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

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>

To: Bruce Momjian <bruce@momjian.us>

Cc: Takahiro Itagaki <itagaki.takahiro@oss.ntt.co.jp>, Robert Haas <robertmhaas@gmail.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>

Date: 2010-04-01T14:04:47Z

Lists: pgsql-hackers

Bruce Momjian <bruce@momjian.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