10FFFF decimal value is 1114111. But, some chinese characters are greater
than this value. Is it correct character(10FFFF) to replace with z?

Please correct me if I am doing wrong.


On Tue, Feb 26, 2013 at 5:58 PM, Igor Tandetnik <i...@tandetnik.org> wrote:

> On 2/26/2013 8:31 AM, Clemens Ladisch wrote:
>
>> Igor Tandetnik wrote:> On 2/26/2013 2:39 AM, dd wrote:
>>
>>> SELECT * FROM emp WHERE column_test BETWEEN "somedata/" AND
>>>> "somedata/zzz"
>>>>
>>>> This database has unicode strings(chinese/japanese/...**etc strings).
>>>> can
>>>> you tell me which is the correct character to replace with z?
>>>>
>>>
>>> U+FFFF, of course.
>>>
>>
>> Unicode characters can have more than 16 bits, of course.
>>
>
> ... but SQLite orders them with simple memcmp (absent a custom collation),
> so 0xFFFF will still compare greater than any surrogate pair.
>
> If the database file uses UTF-8 encoding, and contains supplemental
> characters, then yes, a UTF-8 representation of U+10FFFF would be prudent.
> --
> Igor Tandetnik
>
>
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