Turkish character sorting on PostgreSQL

[Ismail YENIGUL]

Hello,

I am using PostgreSQL 8.2.5 on FreeBSD 6.2. But I have a problem with
sorting Turkish characters. They are listed after "z" character.
I initialized the PostgreSQL with the following values:

initdb -E UNICODE --locale=tr_TR.UTF-8 and
initdb -E LATIN5 --locale tr_TR.ISO8859-9

But the result is like the following:

SELECT * from test order by name;
"id";"name"
1;"aa"
3;"dd"
6;"mm"
5;"zz"
2;"çç"
4;"ş"

There is no problem on Linux with the same data.
How can I solve this problem?

Thanks.

--
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ http://www.enderunix.org/ismail http://www.endersys.com.tr +
+ EnderUNIX SDT @ Tr Endersys Consultancy Ltd. +
+ ismail ~ enderunix.org ismail.yenigul ~ endersys.com.tr +
+ Volunteer, Core Team Member Project Manager +
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[Ivan Voras]

Ismail YENIGUL wrote:
> Hello,
>
> I am using PostgreSQL 8.2.5 on FreeBSD 6.2. But I have a problem with
> sorting Turkish characters. They are listed after "z" character.
> I initialized the PostgreSQL with the following values:
>
> initdb -E UNICODE --locale=tr_TR.UTF-8 and

Unicode (UTF-8) collations (sorting) don't work on FreeBSD. You can use
PostgreSQL 8.1 and the "ICU" patch for it.

> initdb -E LATIN5 --locale tr_TR.ISO8859-9

This could work, if the locale is properly defined in the system locale
database. Try creating a small C program that sorts your strings using
strcoll() to verify this - if the small C program works, it's a
PostgreSQL problem.

[Ismail YENIGUL]

Hello Ivan,

Here is the test result. It seems that the problem is on FreeBSD
(6.2) . Because ö and ş are before then z in Turkish alphabet.

# cat a.c
#include <locale.h>

int main() {

setlocale(LC_COLLATE, "tr_TR.ISO8859-9");
printf("%d\n",strcoll("ö", "z"));
printf("%d\n",strcoll("ü", "z"));
}
ftpfreebsd[~]# ./a
124
130
ftpfreebsd[~]#

By the way, LC_COLLATE is link to the ../la_LN.US-ASCII/LC_COLLATE
in /usr/share/locale/tr_TR.ISO8859-9 directory. Does this mean that
LC_COLLATE is missing for tr_TR.ISO8859-9 ?

# ls -al /usr/share/locale/tr_TR.ISO8859-9/
total 14
drwxr-xr-x 2 root wheel 512 Jul 9 15:32 .
drwxr-xr-x 157 root wheel 4096 Dec 4 2006 ..
lrwxr-xr-x 1 root wheel 28 Jul 9 15:32 LC_COLLATE -> ../la_LN.US-ASCII/LC_COLLATE
lrwxr-xr-x 1 root wheel 26 Jul 9 15:32 LC_CTYPE -> ../la_LN.US-ASCII/LC_CTYPE
-r--r--r-- 1 root wheel 18 Jul 9 15:32 LC_MESSAGES
-r--r--r-- 1 root wheel 34 Jul 9 15:32 LC_MONETARY
-r--r--r-- 1 root wheel 8 Jul 9 15:32 LC_NUMERIC
-r--r--r-- 1 root wheel 352 Jul 9 15:32 LC_TIME

and there is no file spesicific to the tr_TR.ISO8859-9 in /usr/src/share/colldef/

# ls /usr/src/share/colldef/
Makefile el_GR.ISO8859-7.src la_LN.ISO8859-15.src map.ISO8859-1 ru_RU.CP1251.src
README en_DK.example la_LN.ISO8859-2.src map.ISO8859-13 ru_RU.CP866.src
be_BY.CP1131.src es_ES.ISO8859-1.src la_LN.ISO8859-4.src map.ISO8859-15 ru_RU.ISO8859-5.src
be_BY.CP1251.src es_ES.ISO8859-15.src la_LN.US-ASCII.src map.ISO8859-2 ru_RU.KOI8-R.src
be_BY.ISO8859-5.src et_EE.ISO8859-15.src lt_LT.ISO8859-13.src map.ISO8859-4 sl_SI.ISO8859-2.src
bg_BG.CP1251.src hi_IN.ISCII-DEV.src lt_LT.ISO8859-4.src map.ISO8859-5 sr_YU.ISO8859-5.src
ca_ES.ISO8859-1.src hy_AM.ARMSCII-8.src map.ARMSCII-8 map.ISO8859-7 sv_SE.ISO8859-1.src
ca_ES.ISO8859-15.src is_IS.ISO8859-1.src map.CP1131 map.KOI8-R sv_SE.ISO8859-15.src
cs_CZ.ISO8859-2.src is_IS.ISO8859-15.src map.CP1251 map.KOI8-U uk_UA.CP1251.src
de_DE.ISO8859-1.src kk_KZ.PT154.src map.CP866 map.PT154 uk_UA.ISO8859-5.src
de_DE.ISO8859-15.src la_LN.ISO8859-1.src map.ISCII-DEV pl_PL.ISO8859-2.src uk_UA.KOI8-U.src

--

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ http://www.enderunix.org/ismail http://www.endersys.com.tr +
+ EnderUNIX SDT @ Tr Endersys Consultancy Ltd. +
+ ismail ~ enderunix.org ismail.yenigul ~ endersys.com.tr +
+ Volunteer, Core Team Member Project Manager +
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

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[Ivan Voras]

On 22/12/2007, Ismail YENIGUL <ism...@enderunix.org> wrote:

> By the way, LC_COLLATE is link to the ../la_LN.US-ASCII/LC_COLLATE
> in /usr/share/locale/tr_TR.ISO8859-9 directory. Does this mean that
> LC_COLLATE is missing for tr_TR.ISO8859-9 ?

Yes.

[Ismail YENIGUL]

Hello,

I am volunteer for this issue. But, I don't know how to create a locale
Can someone give me hints(url, howto etc) about this issue?

Thanks in advance.

> Yes.
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