Re: Datatypes and performance

How postgres internally stores text fields, in a separate table?

-----Original Message-----
From: Andrew Sullivan [mailto:andrew(at)libertyrms(dot)info]
Sent: Friday, July 04, 2003 12:55 PM
To: PostgreSQL List
Subject: Re: [GENERAL] Datatypes and performance

On Fri, Jul 04, 2003 at 09:10:41AM -0700, Jay O'Connor wrote:
> Based on the docs, they say that there's not performance difference
between
> using varchar(n) and text.
>
> So will leaving my fields as unlimited varchar be a performance issue?
Or
> should I try to narrow them down?

In fact, there is a performance penalty for limiting their length,
because you have to check on each insert.

> My coworker has more experience with Oracle and MS-SQL than postgresql

You may want to tell your coworker to read the docs ;-)

A

--
----
Andrew Sullivan 204-4141 Yonge Street
Liberty RMS Toronto, Ontario Canada
<andrew(at)libertyrms(dot)info> M2P 2A8
+1 416 646 3304 x110

---------------------------(end of broadcast)---------------------------
TIP 5: Have you checked our extensive FAQ?

http://www.postgresql.org/docs/faqs/FAQ.html