Обсуждение: Swedish characters

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                         POSTGRESQL BUG REPORT TEMPLATE
============================================================================


Your name       :    Rickard Annell
Your email address  :    Rickard.Annell@udac.se


System Configuration
---------------------
   Architecture (example: Intel Pentium)     :    PowerPC 604e

   Operating System (example: Linux 2.0.26 ELF)  :    AIX v 4.3.3

   PostgreSQL version (example: PostgreSQL-7.1):   PostgreSQL-7.1beta5

   Compiler used (example:  gcc 2.8.0)       :    gcc v. 2.95.2


Please enter a FULL description of your problem:
------------------------------------------------
Problem with match swedish characters in SQL query.





Please describe a way to repeat the problem.   Please try to provide a
concise reproducible example, if at all possible:
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./configure  --prefix=/service/database/postgres_test --enable-odbc
--enable-local
export LC_ALL=sv_SE
export LC_CTYPE=sv_SE
export LC_COLLATE=sv_SE

nohup ./postmaster -p 5431 -i >server.log 2>&1 &
./createdb -p 5431 cybertest
./psql -p 5431 cybertest
create table test (id int , name varchar,primary key(id));
insert into test values (1,'Åsbrink');
select * from test where lower(name) like '%å%';
  id | name
----+------
(0 rows)

I think "lower(name) like '%å%'" should match. If i try "lower(name)
like '%Å%'" I get one row.




If you know how this problem might be fixed, list the solution below:
---------------------------------------------------------------------

--
___________________________________________________________________
Rickard Annell                E-mail: Rickard.Annell@udac.se
SYSteam Udac                WWW: http://www.udac.se
                    Tel: +46 (0)18 4717700
Box 174, S-751 04 Uppsala, Sweden    Fax: +46 (0)18 516600

Rickard Annell writes:

> ./configure  --prefix=/service/database/postgres_test --enable-odbc
> --enable-local

--enable-locale

> export LC_ALL=sv_SE
> export LC_CTYPE=sv_SE
> export LC_COLLATE=sv_SE
>
> nohup ./postmaster -p 5431 -i >server.log 2>&1 &
> ./createdb -p 5431 cybertest
> ./psql -p 5431 cybertest
> create table test (id int , name varchar,primary key(id));
> insert into test values (1,'Åsbrink');
> select * from test where lower(name) like '%å%';
>   id | name
> ----+------
> (0 rows)
>
> I think "lower(name) like '%å%'" should match. If i try "lower(name)
> like '%Å%'" I get one row.

--
Peter Eisentraut      peter_e@gmx.net       http://yi.org/peter-e/

Rickard Annell <Rickard.Annell@udac.se> writes:
> ./configure  --prefix=/service/database/postgres_test --enable-odbc
> --enable-local
> export LC_ALL=sv_SE
> export LC_CTYPE=sv_SE
> export LC_COLLATE=sv_SE

> nohup ./postmaster -p 5431 -i >server.log 2>&1 &

You do know that under 7.1, the important LC_ values are the ones that
initdb sees, not the ones that the postmaster sees, right?  Can't tell
from this snippet whether you initdb'd in Swedish locale or not.

> create table test (id int , name varchar,primary key(id));
> insert into test values (1,'Åsbrink');
> select * from test where lower(name) like '%å%';
>   id | name
> ----+------
> (0 rows)

Is this a bug?  I'd sort of think that 'å' is not lower case
(although maybe my mail reader isn't presenting it in the right
font ... it looks like an accented upper case I to me, but what
do you think it is?).  Shouldn't you say "where lower(name) like
lower('%å%')"?  Or perhaps use ILIKE to get a case-insensitive
compare.

            regards, tom lane