From: Julian Scarfe <julian.scarfe@ntlworld.com>
To: Jodi Kanter <jkanter@virginia.edu>
Cc: Postgres SQL List <pgsql-sql@postgresql.org>
Subject: Re: order by
Date: Thu, 27 Mar 2003 15:06:01 +0000
Message-ID: <BAA8C3D9.25F98%julian.scarfe@ntlworld.com> (raw)
In-Reply-To: <007001c2f470$f4a936c0$de138f80@virginia.edu>
On 27/3/03 14:55, "Jodi Kanter" <jkanter@virginia.edu> wrote:
> Other than the sort ordering are there any other problems with NOT having
> the environment set to "C?"
Pattern matching e.g. "where foo ~~ 'bar%'" doesn't use an index on foo
unless the locale is C. This can cause a significant performance hit. For
examples as above you can workaround by defining a substring function for a
functional index, but it's a bit clumsy.
Must get round to doing a fresh initdb one of these days... ;-)
Julian Scarfe
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Subject: Re: order by
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