Re: [HACKERS] Issue on Varchar Ordering

[Rodrigo Hjort]

Yeah, I think there's a problem on Linux locales.

Using the C locale, it works as expected:

[EMAIL PROTECTED]:~$ export LC_ALL=C && cat test.txt | sort
GABRIEL ALCIDES KLIM PERONDI
GABRIEL ALEXANDRE DA SILVA MANICA
GABRIELA HELEDA DE SOUZA
GABRIELA JACOBY NOS
GABRIELA LETICIA BATISTA NUNES

But when using Brazilian Portuguese, it gives:

[EMAIL PROTECTED]:~$ export LC_ALL=pt_BR && cat test.txt | sort
GABRIELA HELEDA DE SOUZA
GABRIELA JACOBY NOS
GABRIEL ALCIDES KLIM PERONDI
GABRIELA LETICIA BATISTA NUNES
GABRIEL ALEXANDRE DA SILVA MANICA

[EMAIL PROTECTED]:~$ export LC_ALL=pt_BR.UTF-8 && cat test.txt | sort
GABRIELA HELEDA DE SOUZA
GABRIELA JACOBY NOS
GABRIEL ALCIDES KLIM PERONDI
GABRIELA LETICIA BATISTA NUNES
GABRIEL ALEXANDRE DA SILVA MANICA

[EMAIL PROTECTED]:~$ export LC_ALL=pt_BR.ISO-8859-1 && cat test.txt | sort
GABRIELA HELEDA DE SOUZA
GABRIELA JACOBY NOS
GABRIEL ALCIDES KLIM PERONDI
GABRIELA LETICIA BATISTA NUNES
GABRIEL ALEXANDRE DA SILVA MANICA

The fact is that I can't raise PostgreSQL with C encoding, as special characters are used on most tables.

Did anyone ever had the same problem on Linux?

2006/3/29, Jonah H. Harris <[EMAIL PROTECTED]>:

I don't think PostgreSQL's sorting it wrong... here's the output of
Linux's sort utility:

[EMAIL PROTECTED]:~> cat test.txt
GABRIEL ALEXANDRE DA SILVA MANICA
GABRIELA LETICIA BATISTA NUNES
GABRIEL ALCIDES KLIM PERONDI
GABRIELA JACOBY NOS
GABRIELA HELEDA DE SOUZA

[EMAIL PROTECTED]:~> cat test.txt | sort
GABRIELA HELEDA DE SOUZA
GABRIELA JACOBY NOS
GABRIEL ALCIDES KLIM PERONDI
GABRIELA LETICIA BATISTA NUNES
GABRIEL ALEXANDRE DA SILVA MANICA

[EMAIL PROTECTED]:~> psql -c "SELECT * FROM aluno ORDER BY nome" postgres
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 rows)

--
Jonah H. Harris, Database Internals Architect
EnterpriseDB Corporation
732.331.1324

--
Regards,

Rodrigo Hjort
GTI - Projeto PostgreSQL
CELEPAR - Cia de Informática do Paraná
http://www.pr.gov.br