drop table if exists t1;
set names latin1;
select hex(weight_string(0x010203));
hex(weight_string(0x010203))
010203
select hex(weight_string('aa' as char(3)));
hex(weight_string('aa' as char(3)))
414120
select hex(weight_string('a' as char(-1)));
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-1)))' at line 1
select hex(weight_string('a' as char(0)));
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '0)))' at line 1
select hex(weight_string('a' as char(1)));
hex(weight_string('a' as char(1)))
41
select hex(weight_string('ab' as char(1)));
hex(weight_string('ab' as char(1)))
41
select hex(weight_string('ab'));
hex(weight_string('ab'))
4142
select hex(weight_string('aa' as binary(3)));
hex(weight_string('aa' as binary(3)))
616100
select hex(weight_string(cast('aa' as binary(3))));
hex(weight_string(cast('aa' as binary(3))))
616100
select hex(weight_string('ab' level 1-1 ASC));
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ASC))' at line 1
select hex(weight_string('ab' level 1-1 DESC));
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DESC))' at line 1
select hex(weight_string('ab' level 1-1 REVERSE));
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'REVERSE))' at line 1
select hex(weight_string('ab' level 1 ASC));
hex(weight_string('ab' level 1 ASC))
4142
select hex(weight_string('ab' level 1 DESC));
hex(weight_string('ab' level 1 DESC))
BEBD
select hex(weight_string('ab' level 1 REVERSE));
hex(weight_string('ab' level 1 REVERSE))
4241
select hex(weight_string('ab' level 1 DESC REVERSE));
hex(weight_string('ab' level 1 DESC REVERSE))
BDBE
create table t1 select weight_string('test') as w;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `w` varbinary(4) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 select weight_string(repeat('t',66000)) as w;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `w` longblob
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
select weight_string(NULL);
weight_string(NULL)
NULL
select 1 as weight_string, 2 as reverse;
weight_string	reverse
1	2
select coercibility(weight_string('test'));
coercibility(weight_string('test'))
4
select coercibility(weight_string('test' collate latin1_swedish_ci));
coercibility(weight_string('test' collate latin1_swedish_ci))
0
create table t1 (s1 varchar(5));
insert into t1 values ('a'),(null);
select hex(weight_string(s1)) from t1 order by s1;
hex(weight_string(s1))
NULL
41
drop table t1;
