Re: Create an index with a sort condition

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Martijn van Oosterhout <kleptog(at)svana(dot)org>
Cc: Jim Nasby <jnasby(at)pervasive(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, sylsau <sylsau14(at)gmail(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: Create an index with a sort condition
Date: 2006-04-04 05:40:52
Message-ID: 13279.1144129252@sss.pgh.pa.us
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Martijn van Oosterhout <kleptog(at)svana(dot)org> writes:
> [ Q about reverse-sort opclasses ]

> Well, if COLLATE support ever gets done, it'll fix this too and be SQL
> compliant to boot.

I keep having a nagging feeling that COLLATE is a completely
inappropriate way to deal with reverse-sort semantics for non-textual
datatypes. Still waiting to see this patch ...

regards, tom lane

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