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set names utf8;
create table t1 (
a int,
b varchar(100) as (if(a,collation('й'),hex('ю')))
) character set koi8r;
insert t1 (a) values (0),(1);
select * from t1;
a b
0 D18E
1 utf8_general_ci
set names latin1;
select * from t1;
a b
0 D18E
1 utf8_general_ci
flush tables;
select * from t1;
a b
0 D18E
1 latin1_swedish_ci
set names koi8r;
select * from t1;
a b
0 D18E
1 latin1_swedish_ci
flush tables;
select * from t1;
a b
0 D18E
1 koi8r_general_ci
drop table t1;
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