Hello
I try to create collation for UT8 charset. I'm trying to do this because default collation don't sort as it should by sorted.
When I use UNICODE_CI collation I get:

Zygmunt
¯yluk
Zys

but correct order is
Zygmunt
Zys
¯yluk

I've tried to create collation
create collation UTF8_PLK for UTF8 from UNICODE_CI 'LOCALE=pl_PL';
but i get error
unsuccessful metadata update
Invalid collation attributes

I'm trying to do this on Windows 7 64 bit
Firebird 2.1.3 64
and Firebird 2.5 64
But I also would need this new collation to work on Windows 32 bit and Linux (32/64)