Re: Primary Keys - Mailing list pgsql-novice

From Nabil Sayegh
Subject Re: Primary Keys
Date
Msg-id 3FAEA212.8060706@e-trolley.de
Whole thread Raw
In response to Primary Keys  ("Farid Khan" <Farid.Khan@rogers.com>)
Responses Re: Primary Keys
List pgsql-novice
Farid Khan wrote:
> The table I am creating would be based on a X,Y point.  We have serious
> doubts on what this would do to the performance of the system we are
> developing.  I am assuming, that a table can have a primary key consisting
> of 2 fields, which together would be unique to the entire table.  Would
> indexing this table be the nightmare we think it would be?  Has anyone seen
> anything remotely similar out there with 1M+ rows?

Personally I would always choose an extra SERIAL column.
I don't really like the concept of having multiple columns as a PK.

1M doesn't sound like a big problem.

--
  e-Trolley Sayegh & John, Nabil Sayegh
  Tel.: 0700 etrolley /// 0700 38765539
  Fax.: +49 69 8299381-8
  PGP : http://www.e-trolley.de


pgsql-novice by date:

Previous
From: so_excited@excite.com (Damon)
Date:
Subject: How to know column constraints via system catalog tables
Next
From: Josh Berkus
Date:
Subject: Re: Primary Keys