Обсуждение: Multi-Language upper(),lower()

Just a quick question.

Am I mistaken, or was multi-language support for
upper(), lower() and friends recently added to 7.5?
I could have sworn I saw mention of this on hackers,
but, the TODO is not marked as done.

Thanks,
Ara Anjargolian

Ara Anjargolian <ara818@yahoo.com> writes:
> Am I mistaken, or was multi-language support for
> upper(), lower() and friends recently added to 7.5?

I fixed upper/lower so that they would work on multi-byte character set
encodings, given that the platform supports the <wctype.h> functions
towupper, towlower, etc.  This means they can work on Unicode (UTF-8)
data.  However, this doesn't do anything to improve the fundamental
issue that we are dependent on the C library's API for locale-specific
behavior, and that that API does *not* easily support dealing with
multiple locales at once.  See the nearby "unicode and sorting" thread.

            regards, tom lane

Tom Lane wrote:
> Ara Anjargolian <ara818@yahoo.com> writes:
> > Am I mistaken, or was multi-language support for
> > upper(), lower() and friends recently added to 7.5?
>
> I fixed upper/lower so that they would work on multi-byte character set
> encodings, given that the platform supports the <wctype.h> functions
> towupper, towlower, etc.  This means they can work on Unicode (UTF-8)
> data.  However, this doesn't do anything to improve the fundamental
> issue that we are dependent on the C library's API for locale-specific
> behavior, and that that API does *not* easily support dealing with
> multiple locales at once.  See the nearby "unicode and sorting" thread.

OK, I marked the item as done.

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