From: Peter Eisentraut <peter_e@gmx.net>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Aldor <an@mediaroot.de>
Cc: pgsql-sql@postgresql.org
Subject: Re: POSIX Regular Expression question
Date: Mon, 5 Sep 2005 18:07:15 +0200
Message-ID: <200509051807.17320.peter_e@gmx.net> (raw)
In-Reply-To: <20050905151331.GA19192@surnet.cl>
References: <431C4EB2.80401@mediaroot.de>
<200509051619.29210.peter_e@gmx.net>
<20050905151331.GA19192@surnet.cl>
Am Montag, 5. September 2005 17:13 schrieb Alvaro Herrera:
> Note that [:alpha:] and such character classes are defined by POSIX to
> be locale independent:
>
> alvherre=# select 'á' ~ '[a-z]';
> ?column?
> ----------
> f
> (1 fila)
>
> alvherre=# select 'á' ~ '[[:alpha:]]';
> ?column?
> ----------
> t
> (1 fila)
I don't think this addresses the concern I intended to raise. The first query
should succeed for all letters between a and z, the second should succeed for
all letters. Neither is guaranteed to succeed only for all "normal" Latin
letters a, b, c, ... z.
--
Peter Eisentraut
http://developer.postgresql.org/~petere/
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To: pgsql-sql@postgresql.org
Cc: peter_e@gmx.net, alvherre@alvh.no-ip.org, an@mediaroot.de
Subject: Re: POSIX Regular Expression question
In-Reply-To: <200509051807.17320.peter_e@gmx.net>
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