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Re: Case-Insensitve Text Comparison

From: Jeff Davis <pgsql(at)j-davis(dot)com>
To: Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>
Cc: "David E(dot) Wheeler" <david(at)kineticode(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Case-Insensitve Text Comparison
Date: 2008-06-03 20:53:56
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Lists: pgsql-hackers
On Tue, 2008-06-03 at 21:26 +0200, Zdenek Kotala wrote:
> The first step is per database, because it is relative easy. Collation 
> per-column is very difficult. It requires a lot of changes (parser, planer, 
> executor...) in whole source code, because you need to keep collation 
> information together with text data.

Right now typmod is already passed to all those layers, right? Would it
be a useful intermediate step to use typmod to hold this information for
the text type?

I suppose that would only work for text and not varchar, because varchar
already has a use for typmod. 

	Jeff Davis

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