On Tue, Jul 22, 2008 at 04:32:39PM +0200, Zdenek Kotala wrote:
> >Oh, so you're thinking of a charset as a sort of check constraint. If
> >your locale is turkish and you have a column marked charset ASCII then
> >storing lower('HI') results in an error.
>
> Yeah, if you use strcoll function it fails when illegal character is found.
> See
> http://www.opengroup.org/onlinepubs/009695399/functions/strcoll.htmlWierd, at least in glibc and ICU it can't happen but perhaps there are other implementations where it can... > Collation cannot be defined on any character. There is not any relation > between > Latin and Chines characters. Collation has sense when you are able to > specify < = > operators. There is no standardised relation. However, if your collation library decides to define all chinese characters after all latin characters, they will have defined a collation that will work for all strings with any characters... Which is basically the approach glibc/ICU takes. I think the standard is kind of pathetic to say that strcoll can set errno but have no value to indicate error. I wonder how many platforms actually use that "feature". Have a nice day, -- Martijn van Oosterhout <[EMAIL PROTECTED]> http://svana.org/kleptog/ > Please line up in a tree and maintain the heap invariant while > boarding. Thank you for flying nlogn airlines.
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