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RES: Issue on Varchar Ordering

From: Erika Terahata Torres Prada e Silva - MPS <erika(dot)prada(at)previdencia(dot)gov(dot)br>
To: pgsql-admin(at)postgresql(dot)org
Cc: Erika Terahata Torres Prada e Silva - MPS <erika(dot)prada(at)previdencia(dot)gov(dot)br>
Subject: RES: Issue on Varchar Ordering
Date: 2006-08-17 13:41:01
Message-ID: 5519B95F9CA8B94DA8DE3F0A3337567201781A5F@wtdfl055.prevnet (view raw or flat)
Thread:
Lists: pgsql-admin
Peter, 

Thanks for answering.

But it's not correct to my language pt_BR and it worked correctly with
PostgreSQL at Windows and FreeBSD. I have this problem only with Debian and
now I'm looking for some Debian related issue.



-----Mensagem original-----
De: Peter Eisentraut [mailto:peter_e(at)gmx(dot)net] 
Enviada em: quinta-feira, 17 de agosto de 2006 10:04
Para: pgsql-admin(at)postgresql(dot)org
Cc: Erika Terahata Torres Prada e Silva - MPS
Assunto: Re: [ADMIN] Issue on Varchar Ordering

Erika Terahata Torres Prada e Silva - MPS wrote:
> I'm having the following issue:
>
> create table aluno (id serial, nome varchar(60));
>
> rodrigo=# select * from aluno order by nome offset 35 limit 5;
>  id |               nome
> ----+-----------------------------------
>  36 | GABRIELA HELEDA DE SOUZA
>  37 | GABRIELA JACOBY NOS
>  38 | GABRIEL ALCIDES KLIM PERONDI
>  39 | GABRIELA LETICIA BATISTA NUNES
>  40 | GABRIEL ALEXANDRE DA SILVA MANICA
> (5 registros)
>
> The problem is that records with id 38 and 40 might come before the
> others. It seems that the spacing isn't considered on ordering.

That is, for practical purposes, correct.

May I suggest that you properly normalize your tables, by putting given 
name and family name into separate columns.

-- 
Peter Eisentraut
http://developer.postgresql.org/~petere/

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