Oleg Bartunov wrote:
alexander,

lc_ctype and lc_collate can be changed only at initdb !
You need to read localization chapter
http://www.postgresql.org/docs/current/static/charset.html


Yes, i knew about this, but i thought maybe somehow it can be changed
onthefly.

... (10 minutes later)

Yes, now when initdb done with --locale=ru_RU.UTF-8,
lower('RussianString') gives me 'russianstring', though, case-insensiive
regexp still not working. I guess i'll stick with lower() ~ lower()
construction.

And thanks everybody who replied!



Oleg
On Thu, 12 Jul 2007, alexander lunyov wrote:

Tom Lane wrote:
alexander lunyov <[EMAIL PROTECTED]> writes:
    With this i just wanted to say that lower() doesn't work at all on
russian unicode characters,

In that case you're using the wrong locale (ie, not russian unicode).
Check "show lc_ctype".

db=>  SHOW LC_CTYPE;
lc_ctype
----------
C
(1 запись)

db=>  SHOW LC_COLLATE;
lc_collate
------------
C
(1 запись)

Where can i change this? Trying to SET this parameters gives error "parameter "lc_collate" cannot be changed"

Or [ checks back in thread... ] maybe you're using the wrong operating
system.  Not so long ago FreeBSD didn't have Unicode locale support at
all; I'm not sure if 6.2 has that problem but it is worth checking.
Does it work for you to do case-insensitive russian comparisons in
"grep", for instance?

I put to textfile 3 russian strings with different case of first char and grep'ed them all:

# cat > textfile
Зеленая
Зеленодольская
зеленая
# grep -i зелен *
textfile:Зеленая
textfile:Зеленодольская
textfile:зеленая

So i think system is fine about unicode.



    Regards,
        Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: [EMAIL PROTECTED], http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83

--
alexander lunyov
[EMAIL PROTECTED]




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