Обсуждение: Seaching without accents

How can I configure postgreSQL to search without acents?

Is PostgreSQL have this support?

I configured my locale to pt_BR, that support acents, create table with
enconding "latin1", but nothing works. I know that I can use function
"TO_ASCII", and "select like "t_s%".

Like:

Table “test”
Clumns: name , values:
Test
Test
tést
Tést


SELECT * FROM test WHERE name LIKE “tes%”

And it should return values “tést, test”

Thanks,

Augusto

On Mon, 2 Feb 2004, Augusto Cesar Castoldi wrote:

> How can I configure postgreSQL to search without acents?
> 
> Is PostgreSQL have this support?
> 
> I configured my locale to pt_BR, that support acents, create table with
> enconding "latin1", but nothing works. I know that I can use function
> "TO_ASCII", and "select like "t_s%".
> 
> Like:
> 
> Table “test”
> Clumns: name , values:
> Test
> Test
> tést
> Tést

Did you run initdb with --locale=pt_BR

???  It's got to be done at initdb time, after that it's too late to 
change it.

Yes,

I tried to initdb isso locale too.

Didn’t worked, now my linux is configured with pt_BR, than in initdb
appers there, "using locale pt_BR"

Why it doesn't work? Did you tried it?

Is there something related with "Indexes" ? Do I need to create one? If
I create an Index, it will save the rows in 'index' without acents?

Thanks,

Augusto



-----Mensagem original-----
De: pgsql-hackers-owner@postgresql.org
[mailto:pgsql-hackers-owner@postgresql.org] Em nome de scott.marlowe
Enviada em: Monday, February 02, 2004 9:52 PM
Para: Augusto Cesar Castoldi
Cc: pgsql-hackers@postgresql.org
Assunto: Re: [HACKERS] Seaching without accents

On Mon, 2 Feb 2004, Augusto Cesar Castoldi wrote:

> How can I configure postgreSQL to search without acents?
>
> Is PostgreSQL have this support?
>
> I configured my locale to pt_BR, that support acents, create table
with
> enconding "latin1", but nothing works. I know that I can use function
> "TO_ASCII", and "select like "t_s%".
>
> Like:
>
> Table “test”
> Clumns: name , values:
> Test
> Test
> tést
> Tést

Did you run initdb with --locale=pt_BR

???  It's got to be done at initdb time, after that it's too late to
change it.


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Hi Augusto,

> How can I configure postgreSQL to search without acents?
> Is PostgreSQL have this support?
>
There isn't a specific function in postgresql. Maybe you could implement it in PL/Perl or any other PL/* language.

> SELECT * FROM test WHERE name LIKE _tes%_
>
> And it should return values _tést, test_
>
It's not a good idea to use _ to replace accents 'cause it would match undesirable expressions like tost, tist, tust,
txst,etc. 


--
Euler Taveira de Oliveira
euler (at) ufgnet.ufg.br
Desenvolvedor Web e Administrador de Sistemas
UFGNet - Universidade Federal de Goiás