[firebird-support] FB3 alter domain colltion

[liviuslivius liviusliv...@poczta.onet.pl [firebird-support]]

Hi,
 
when we create dommain we can do:
CREATE DOMAIN XXX TYPE VARCHAR(50) COLLATE PXW_PLK;
 
but how to alter this domain to have still collation?
 
ALTER DOMAIN XXX TYPE VARCHAR(150) COLLATE PXW_PLK;
 
 
Engine Code    : 335544569
Engine Message :
Dynamic SQL Error
SQL error code = -104
Token unknown - line 1, column 38
COLLATE
 
is this possible or i should create ticket/or it already exists?
 
regards,
Karol Bieniaszewski