> The link above says no transliteration is performed when NONE is
> set, but I will check it :)

you can try following:

create table(
national_encoding varchar(20) character set <CHARSET_YOU_LIKE>,
none_encoding varchar(20) character set NONE
)

and then try to insert your national characters into
national_encoding with NONE charset for client connection. You will
get exception (at least this is true for WIN1251).

> I'll try to check this.

Personally I see no need for this. I doubt that any C/C++/Delphi
library does this, so why should we?

Best regards,
Roman Rokytskyy