[CBRD-24968] An error occurs when a table alias name is used and a column name is used within a function.

[beyondykk9]

http://jira.cubrid.org/browse/CBRD-24968

-- at remote side
drop table if exists remote_t2;
drop table remote_t2;
create table remote_t2 (col1 int, col2 int);
insert into remote_t2 values (1,2);
insert into remote_t2 values (2,null);
insert into remote_t2 values (3,4);

-- at local side 
select b.col1, 
       nvl(b.col2,9999)
from  remote_t2@remote_server b;

ERROR: Class of b does not have attribute col2.