Re: [v9.2] make_greater_string() does not return a string in some cases

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)oss(dot)ntt(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [v9.2] make_greater_string() does not return a string in some cases
Date: 2011-10-18 03:54:45
Message-ID: 25893.1318910085@sss.pgh.pa.us
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Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> - Why does the second byte need special handling for 0xED and 0xF4?

http://www.faqs.org/rfcs/rfc3629.html

See section 4 in particular. The underlying requirement is to disallow
multiple representations of the same Unicode code point.

regards, tom lane

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