From: Martijn van Oosterhout <kleptog@svana.org>
To: Frank Millman <frank@chagford.com>
To: pgsql-general@postgresql.org
Subject: Re: Case sensitivity
Date: Tue, 9 Aug 2005 13:04:23 +0200
Message-ID: <20050809110418.GC8244@svana.org> (raw)
In-Reply-To: <20050809095743.GB8244@svana.org>
References: <42F72C06.8000000@archonet.com>
<VPOP32.1.0e.20050809093619.625.7.1.a40c1f81@chagford.com>
<20050809095743.GB8244@svana.org>
On Tue, Aug 09, 2005 at 11:57:48AM +0200, Martijn van Oosterhout wrote:
> Another option would be to create a new datatype 'itext' which works
> like text except it compares case insensetively. PostgreSQL is flexible
> like that. Here's something to get you started, see below for example.
>
> http://svana.org/kleptog/pgsql/type_itext.sql
>
> At the moment it uses SQL functions for the comparisons, for production
> you'd probably want to have them in C for performance. Also, it's not
> pg_dump safe (no operator class support).
Oops, turns out there *is* a CREATE OPERATOR CLASS but my version of
psql doesn't have it in command completion. And when you use that it
*is* saved by pg_dump. Problem solved.
I've tested various things, DISTINCT works, ORDER BY works, GROUP BY
works. Neat huh?
Have a nice day,
--
Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/> Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> tool for doing 5% of the work and then sitting around waiting for someone
> else to do the other 95% so you can sue them.
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To: pgsql-general@postgresql.org
Cc: kleptog@svana.org, frank@chagford.com
Subject: Re: Case sensitivity
In-Reply-To: <20050809110418.GC8244@svana.org>
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