Difference between varchar and text?

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От	Moshe Jacobson
Тема	Difference between varchar and text?
Дата	5 ноября 2012 г. 20:46:25
Msg-id	CAJ4CxLmKamEBW8JSQR2MT+6SrjX+fP5zi8nUf5kQ=7Ah83S4gA@mail.gmail.com обсуждение исходный текст
Ответы	Re: Difference between varchar and text? Re: Difference between varchar and text? Re: Difference between varchar and text? Re: Difference between varchar and text?
Список	pgsql-general

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@neadwerx.com | www.neadwerx.com

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