--disable_warnings
drop table if exists t1;
--enable_warnings

create table t1 select repeat('a',10) as c1;
delete from t1;
insert into t1 values (0x00),(0x01),(0x02),(0x03),(0x04),(0x05),(0x06),(0x07),(0x08),(0x09),(0x0A),(0x0B),(0x0C),(0x0D),(0x0E),(0x0F);
insert into t1 values (0x10),(0x11),(0x12),(0x13),(0x14),(0x15),(0x16),(0x17),(0x18),(0x19),(0x1A),(0x1B),(0x1C),(0x1D),(0x1E),(0x1F);
insert into t1 values (0x20),(0x21),(0x22),(0x23),(0x24),(0x25),(0x26),(0x27),(0x28),(0x29),(0x2A),(0x2B),(0x2C),(0x2D),(0x2E),(0x2F);
insert into t1 values (0x30),(0x31),(0x32),(0x33),(0x34),(0x35),(0x36),(0x37),(0x38),(0x39),(0x3A),(0x3B),(0x3C),(0x3D),(0x3E),(0x3F);
insert into t1 values (0x40),(0x41),(0x42),(0x43),(0x44),(0x45),(0x46),(0x47),(0x48),(0x49),(0x4A),(0x4B),(0x4C),(0x4D),(0x4E),(0x4F);
insert into t1 values (0x50),(0x51),(0x52),(0x53),(0x54),(0x55),(0x56),(0x57),(0x58),(0x59),(0x5A),(0x5B),(0x5C),(0x5D),(0x5E),(0x5F);
insert into t1 values (0x60),(0x61),(0x62),(0x63),(0x64),(0x65),(0x66),(0x67),(0x68),(0x69),(0x6A),(0x6B),(0x6C),(0x6D),(0x6E),(0x6F);
insert into t1 values (0x70),(0x71),(0x72),(0x73),(0x74),(0x75),(0x76),(0x77),(0x78),(0x79),(0x7A),(0x7B),(0x7C),(0x7D),(0x7E),(0x7F);
create view v1 as select c1, if(c1 < 0x20 OR c1=0x7F, concat('<',hex(c1),'>'),c1) as name from t1;
select column_name, collation_name from information_schema.columns where table_schema=database() and table_name='v1';
SELECT GROUP_CONCAT(name ORDER BY binary c1 SEPARATOR ''), GROUP_CONCAT(hex(c1) ORDER BY BINARY c1) FROM v1 GROUP BY c1;
drop table t1;
drop view v1;