Difference between varchar and text?

From: Moshe Jacobson <moshe(at)neadwerx(dot)com>
To: pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Difference between varchar and text?
Date: 2012-11-05 20:46:01
Message-ID: CAJ4CxLmKamEBW8JSQR2MT+6SrjX+fP5zi8nUf5kQ=7Ah83S4gA@mail.gmail.com
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Is there any practical difference between defining a column as a
varchar(n)vs. a varchar
vs. a text field?

I've always been under the impression that if I am wanting to index a
varchar column, it is better to set a maximum length. Is this correct?
But more importantly, what's the practical difference between varchar with
no limit and text?

Thanks, and apologies if this is a FAQ...

Moshe

--
Moshe Jacobson
Nead Werx, Inc. | Senior Systems Engineer
2323 Cumberland Parkway, Suite 201 | Atlanta, GA 30339
moshe(at)neadwerx(dot)com | www.neadwerx.com

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