Multi-Language upper(),lower()

[Ara Anjargolian]

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

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[Tom Lane]

Ara Anjargolian <ar****@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

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[Bruce Momjian]

Tom Lane wrote:

Ara Anjargolian <ar****@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.

--
Bruce Momjian | http://candle.pha.pa.us
pg***@candle.pha.pa.us | [phone]
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073

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