Re: What is a tuple?

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От Martijn van Oosterhout
Тема Re: What is a tuple?
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Msg-id 20020626125358.A6994@svana.org
обсуждение исходный текст
Ответ на What is a tuple?  (Elaine Lindelef <eel@cognitivity.com>)
Ответы Re: What is a tuple?  (Bruce Momjian <pgman@candle.pha.pa.us>)
Re: What is a tuple?  ("David Siebert" <dsiebert@eclipsecat.com>)
Список pgsql-general
On Tue, Jun 25, 2002 at 02:40:03PM -0700, Elaine Lindelef wrote:
> My apologies for the stupid question, but before I started using
> postgres I never came across the word "tuple" quite in this context
> before. I know  a "tuple" as "a data object containing two or more
> components" ... but I'm not sure of its precise meaning in the
> postgres universe. Is a tuple a row, a field value, a field value
> paired with its datatype, what? If someone asks me the size of my
> largest tuple, how do I calculate it? It seems to be related deeply
> to the structure of postgres somehow.

A tuple is a row. Isn't this in the glossary somewhere?
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> There are 10 kinds of people in the world, those that can do binary
> arithmetic and those that can't.



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