create domain dm_memo as blob sub_type 1 segment size 80;
create table clients(id int, text varchar(255), memo dm_memo);
commit;
create view v_clients as select id, text [1,15] , memo [1,15] 
from clients;

insert into clients values(1, 'rosmortransneftegazolovo oao', 'samaya-lutchaya-companiya-vsekh-vremyen-i-narodov');
commit;

show view v_clients;
set list on;
select * from v_clients;

show version;

ID                              INTEGER Nullable
TEXT                            VARCHAR(255) Nullable
MEMO                            (DM_MEMO) BLOB segment 80, subtype TEXT Nullable
View Source:
==== ======
 select id, text[1,15], memo[1,15]
from clients

ID                              1
TEXT                            rosmortransneftegazolovo oao
MEMO                            80:0
samaya-lutchaya-companiya-vsekh-vremyen-i-narodov


ISQL Version: WI-V2.0.7.13318 Firebird 2.0
Server version:
Firebird/x86/Windows NT (access method), version "WI-V2.0.7.13318 Firebird 2.0"
Firebird/x86/Windows NT (remote server), version "WI-V2.0.7.13318 Firebird 2.0/tcp (csprog)/P10"
Firebird/x86/Windows NT (remote interface), version "WI-V2.0.7.13318 Firebird 2.0/tcp (csprog)/P10"
on disk structure version 11.0

-SQL error code = -607
-scalar operator used on field TEXT which is not an array