Re: Case sensitivity

From: Joel Burton <jburton(at)scw(dot)org>
To: Bruce Richardson <brichard(at)cafod(dot)org(dot)uk>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Case sensitivity
Date: 2001-02-27 16:08:08
Message-ID: Pine.LNX.4.21.0102271104560.9947-100000@olympus.scw.org
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On Tue, 27 Feb 2001, Bruce Richardson wrote:

> Discovering that text fields in Postgres are case sensitive - so "Text"
> <> "text" and both can go into the same UNIQUE column - threw me a bit,
> as this is different from other databases I've worked with.
>
> Is there a toggle to turn off case sensitivity, either for a whole
> database or for a column? Or do I just have to get used to ~*?

No, you can't turn it off, and yes, many people do notice that it's not
the way some other databases work. (Some database make this configurable).

You can use ~*, you can also index on function results (eg, you can create
an index on a function. So, you could

create unique index yourtable_pkey on yourtable ( upper(pkeyfield));

which would only allow one 'Joel', regardless of how you cap me.

--
Joel Burton <jburton(at)scw(dot)org>
Director of Information Systems, Support Center of Washington

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