Re: Fixed length data types issue - Mailing list pgsql-hackers

From Martijn van Oosterhout
Subject Re: Fixed length data types issue
Date
Msg-id 20060908163039.GK5479@svana.org
Whole thread Raw
In response to Re: Fixed length data types issue  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Fixed length data types issue  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On Fri, Sep 08, 2006 at 12:19:19PM -0400, Tom Lane wrote:
> Martijn van Oosterhout <kleptog@svana.org> writes:
> > On Fri, Sep 08, 2006 at 10:35:58AM -0400, Tom Lane wrote:
> >> what's more, the docs suggest that it doesn't support anything wider
> >> than UTF16.
>
> > Well, that's not true, which part of the docs were you looking at?
>
> AFAICT, most of the useful operations work on UChar, which is uint16:
> http://icu.sourceforge.net/apiref/icu4c/umachine_8h.html#6bb9fad572d65b305324ef288165e2ac

Oh, you're confusing UCS-2 with UTF-16, UCS-2 is a subset of UTF-16
that only handles the basic plane. Just like no-one is surprised that
UTF-8 handles more than 256 characters, it shouldn't surprise you that
UTF-16 handles more than 65536. ICU hasn't used UCS-2 since 1996.

It's in the FAQ:
http://icu.sourceforge.net/userguide/icufaq.html

Have a nice day,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.

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