Re: Unicode support
От | Andrew Gierth |
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Тема | Re: Unicode support |
Дата | |
Msg-id | 87y6u3aneo.fsf@news-spur.riddles.org.uk обсуждение исходный текст |
Ответ на | Re: Unicode support (Gregory Stark <stark@enterprisedb.com>) |
Ответы |
Re: Unicode support
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Список | pgsql-hackers |
>>>>> "Gregory" == Gregory Stark <stark@enterprisedb.com> writes: >>> I don't believe that the standard forbids the use of combining>>> chars at all. RFC 3629 says:>>> >>> ... This issueis amenable to solutions based on Unicode>>> Normalization Forms, see [UAX15]. Gregory> This is the relevant part. Tom was claiming that the UTF8Gregory> encoding required normalizing the string of unicodeGregory>codepoints before encoding. I'm not sure that's true though,Gregory> is it? FWIW, the SQL spec puts the onus of normalization squarely on the application; the database is allowed to assume that Unicode strings are already normalized, is allowed to behave in implementation-defined ways when presented with strings that aren't normalized, and provision of normalization functions and predicates is just another optional feature. -- Andrew (irc:RhodiumToad)
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