From: Martijn van Oosterhout <kleptog@svana.org>
To: Andrew Dunstan <andrew@dunslane.net>
Cc: Chuck McDevitt <cmcdevitt@greenplum.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: beau hargis <beauh@bluefrogmobile.com>
Cc: pgsql-sql@postgresql.org
Cc: pgsql-hackers@postgresql.org
Subject: Re: [HACKERS] Case Preservation disregarding case
Date: Tue, 31 Oct 2006 19:06:13 +0100
Message-ID: <20061031180613.GB29338@svana.org> (raw)
In-Reply-To: <45478E22.8060805@dunslane.net>
References: <200610271623.37525.beauh@bluefrogmobile.com>
<1162003132.687.8.camel@pampa>
<200610301928.51255.beauh@bluefrogmobile.com>
<23177.1162265010@sss.pgh.pa.us>
<EB48EBF3B239E948AC1E3F3780CF8F88012F88DD@MI8NYCMAIL02.Mi8.com>
<24861.1162276496@sss.pgh.pa.us>
<EB48EBF3B239E948AC1E3F3780CF8F88012F89F8@MI8NYCMAIL02.Mi8.com>
<45478E22.8060805@dunslane.net>
On Tue, Oct 31, 2006 at 12:55:46PM -0500, Andrew Dunstan wrote:
> To this you propose, as I understand it, to have a fourth possibility
> which would be spec compliant for comparison purposes but would label
> result set columns with the case preserved name originally used (or
> would you use the casing used in the query?).
The big issue I see with this is that it would break PQfname on the
client end, since that's case sensetive too. Most client languages are,
so you really are between a rock and a hard place.
Making PQfname case-insensetive also screws up in Tom's example.
One way to appraoch this is to consider this a setting of the collation
of the name datatype. If a case-insensetive collation is selected at
initdb time, then Tom's example would indeed fail, but that's a choice
someone made. Problem being, you'd have to export that choice to
clients to make PQfname work, and that's going to messy.
Have a nice day,
--
Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/> From each according to his ability. To each according to his ability to litigate.
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To: pgsql-sql@postgresql.org
Cc: kleptog@svana.org, andrew@dunslane.net, cmcdevitt@greenplum.com, tgl@sss.pgh.pa.us, beauh@bluefrogmobile.com, pgsql-hackers@postgresql.org
Subject: Re: [HACKERS] Case Preservation disregarding case
In-Reply-To: <20061031180613.GB29338@svana.org>
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