From: | Quan Zongliang <quanzongliang(at)gmail(dot)com> |
---|---|
To: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
Cc: | Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: compare lower case and upper case when encoding is utf-8 |
Date: | 2012-06-18 01:44:26 |
Message-ID: | 4FDE87FA.6080101@gmail.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
On 2012/6/18 7:13, Peter Eisentraut wrote:
> On lör, 2012-06-16 at 16:21 +0800, Quan Zongliang wrote:
>> I found that lower case is less than upper case when the db is
>> created
>> with utf8.
>> I tried below
>> locale en_US.utf8 'A'<'a' false
>> locale ja_JP.utf8 'A'<'a' true
>> locale zh_CN.utf8 'A'<'a' false
>> Under Windows
>> locale Chinese_China 'A'<'a' false
>>
>> I am not sure it is normal or not.
>> But in Chinese, the lower case should be greater than upper, same as
>> locale C.
> The operating system locale determines that, so you need to look there
> if you don't agree with the result.
>
> http://wiki.postgresql.org/wiki/FAQ#Why_do_my_strings_sort_incorrectly.3F
>
>
I see, thank you.
Quan Zongliang
From | Date | Subject | |
---|---|---|---|
Next Message | Josh Kupershmidt | 2012-06-18 03:21:27 | Re: [BUGS] Tab completion of function arguments not working in all cases |
Previous Message | Tom Lane | 2012-06-18 00:44:51 | Re: SQL standard changed behavior of ON UPDATE SET NULL/SET DEFAULT? |