func_str.result:

  `encode('abcd','ab')` binary(4) NOT NULL default ''

) ENGINE=MyISAM DEFAULT CHARSET=latin1

drop table t1;

create table t1 (a char character set latin2);

insert into t1 values ('a'),('b');

select charset(max(a)), coercibility(max(a)),

charset(min(a)), coercibility(min(a)) from t1;

charset(max(a))	coercibility(max(a))	charset(min(a))	coercibility(min(a))

latin2	2	latin2	2

create table t2 select max(a),min(a) from t1;

show create table t2;

Table	Create Table

t2	CREATE TABLE `t2` (

  `max(a)` char(1) character set latin2 default NULL,

  `min(a)` char(1) character set latin2 default NULL

) ENGINE=MyISAM DEFAULT CHARSET=latin1

drop table t2,t1;

select SUBSTR('abcdefg',3,2);

SUBSTR('abcdefg',3,2)

cd