set max_length_for_sort_data = 4096;
select hex(max(sak_mei)) from idbstrcoll where sak_bunc=11;
select hex(sak_mei) from idbstrcoll where sak_bunc=11 order by sak_mei desc limit 1;
select hex(min(sak_mei)) from idbstrcoll where sak_bunc=11;
select hex(sak_mei) from idbstrcoll where sak_bunc=11 order by sak_mei asc limit 1;
select max(sak_mei) from idbstrcoll where sak_bunc=11;
select sak_mei from idbstrcoll where sak_bunc=11 order by sak_mei desc limit 1;
select sak_mei from idbstrcoll where sak_bunc=11 order by sak_mei asc limit 1;
select min(sak_mei) from idbstrcoll where sak_bunc=11;