Hello:
Since 5.6 or so, perl has stored an internal flag on every string to mark whether it's UTF-8 or not. For data of unknown encoding, such as data read from files, the default is latin1, but it can be changed with use encoding 'utf8'. Now, I have a postgresql database in charset UNICODE. So, postgres knows the data is UTF-8. However, when passing arguments to plperl functions, no matter what the charset, postgres ALWAYS sets the UTF-8 flag to off. This means that the only way to handle the string properly in perl, when it matters that perl knows it's UTF-8, is to use utf8::upgrade -- on every argument, in every function, every time. This is rather kludgy, considering there already exists a way to fix it by calling the libperl API properly. It would be nice if it could be fixed in 8 final (it's exactly the same in 8 beta and 7.4.6).
Regards, Dave
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