2
drop table if exists t1;
8
# If it's BLOB or BINARY or VARBINARY, then output = input.
10
select hex(weight_string(0x010203));
13
# "AS CHAR ( int )" causes padding on the right. The pad
14
# character is always space, that is, 0x20 or 0x0020.
15
# The padding occurs before the conversion to a weight.
16
# The value of "int" is the number of characters, not the number of bytes.
18
select hex(weight_string('aa' as char(3)));
21
# The minimum value of 'int' is 1.
24
select hex(weight_string('a' as char(-1)));
26
select hex(weight_string('a' as char(0)));
27
select hex(weight_string('a' as char(1)));
30
# If 'int' is smaller than the length of 'string',
31
# truncation will occur with no warning.
33
select hex(weight_string('ab' as char(1)));
36
# If "AS CHAR ( int )" is omitted, there is no padding and no truncation.
38
select hex(weight_string('ab'));
41
# "AS BINARY ( int )" is like CHAR(int) but causes padding of 0x00
42
# so one doesn't have to use "CAST(string AS BINARY(int))".
44
select hex(weight_string('aa' as binary(3)));
45
select hex(weight_string(cast('aa' as binary(3))));
48
# If and only if one specifies "LEVEL numeric-list" (not "range"),
49
# one may follow any "number" with [ASC|DESC][REVERSE]
52
select hex(weight_string('ab' level 1-1 ASC));
54
select hex(weight_string('ab' level 1-1 DESC));
56
select hex(weight_string('ab' level 1-1 REVERSE));
59
# If one says "DESC", then the weights come out NOTed
60
# or negated for that level.
61
# If one says "REVERSE", then the weights come out in
62
# reverse order for that level, that is, starting with
63
# the last character and ending with the first character.
65
select hex(weight_string('ab' level 1 ASC));
66
select hex(weight_string('ab' level 1 DESC));
67
select hex(weight_string('ab' level 1 REVERSE));
68
select hex(weight_string('ab' level 1 DESC REVERSE));
71
# If the result length is less than or equal to the
72
# maximum possible length for the VARBINARY data type,
73
# then the result data type is VARBINARY. Otherwise
74
# the result data type is BLOB.
76
create table t1 select weight_string('test') as w;
79
create table t1 select weight_string(repeat('t',66000)) as w;
84
# If input is NULL, then output is NULL.
86
select weight_string(NULL);
89
# WEIGHT_STRING and REVERSE will not be a new reserved word.
91
select 1 as weight_string, 2 as reverse;
94
# Check that collation derivation is copied from the argument
96
select coercibility(weight_string('test'));
97
select coercibility(weight_string('test' collate latin1_swedish_ci));
100
# Bug#33663 Character sets: weight_string function,
101
# varchar column, wrong result
103
create table t1 (s1 varchar(5));
104
insert into t1 values ('a'),(null);
105
select hex(weight_string(s1)) from t1 order by s1;