From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | meetesh(dot)karia(at)alumni(dot)duke(dot)edu |
Cc: | Robert Treat <xzilla(at)users(dot)sourceforge(dot)net>, pgsql-admin(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Encoding problems with migration from 8.0.14 to 8.3.0 on Windows |
Date: | 2008-03-13 15:43:22 |
Message-ID: | 17759.1205423002@sss.pgh.pa.us |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-admin pgsql-hackers |
Meetesh Karia <meetesh(dot)karia(at)gmail(dot)com> writes:
> Additionally, here's what I get when I run your test below (my server
> encoding is UTF-8):
> ltefull=# create table x (r varchar(255) unique);
> NOTICE: CREATE TABLE / UNIQUE will create implicit index "x_r_key" for
> table "x"
> CREATE TABLE
> ltefull=#
> ltefull=# set client_encoding=WIN1250;
> SET
> ltefull=# insert into x (r) values ('Daniel Brhl');
> INSERT 0 1
> ltefull=#
> ltefull=# insert into x (r) values ('Daniel Bruehl');
> ERROR: duplicate key value violates unique constraint "x_r_key"
You said this was on Windows, right?
I was about to say "that should be impossible", until I looked at
varstr_cmp() and realized that whoever put in the WIN32/UTF8
special case omitted this part:
/*
* In some locales strcoll() can claim that nonidentical strings are
* equal. Believing that would be bad news for a number of reasons,
* so we follow Perl's lead and sort "equal" strings according to
* strcmp().
*/
if (result == 0)
result = strcmp(a1p, a2p);
So we behave differently on Windows (with UTF8) than anywhere else.
This is pretty nasty, not least because it means that texteq is
inconsistent with other text comparison operators.
I think this is a "must fix" bug for 8.3.1, anyone disagree?
regards, tom lane
From | Date | Subject | |
---|---|---|---|
Next Message | Tom Lane | 2008-03-13 16:04:27 | Re: migration of 7.4 to 8.1 |
Previous Message | Tom Lane | 2008-03-13 15:31:36 | Re: LAN connection to server only after restart server |
From | Date | Subject | |
---|---|---|---|
Next Message | Tom Lane | 2008-03-13 15:52:17 | Re: Nasty bug in heap_page_prune |
Previous Message | Gregory Stark | 2008-03-13 14:25:19 | aclitem out/in don't "work" |