"Dmitry Ryabov" <dmitry-rya...@mail.ru> writes:
> In the version 9.1 I was surprised to find that the function "upper" now is
> not working as before. For example:
> select upper ('SISTEM AYGıTLARı') = 'SISTEM AYGITLARI'
> in postgresql 9.0 returns true, but in postgresql 9.1 - false.
It sounds like you didn't use the same locale settings when creating
your 9.1 database. Check LC_CTYPE and LC_COLLATE settings.
regards, tom lane
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