drop table if exists t1;
create table t1 (
a char(3) character set latin1 collate latin1_bin primary key
) engine=ndb;
insert into t1 values('aAa');
insert into t1 values('aaa');
insert into t1 values('AAA');
select * from t1 order by a;
a
AAA
aAa
aaa
select * from t1 where a = 'aAa';
a
aAa
select * from t1 where a = 'aaa';
a
aaa
select * from t1 where a = 'AaA';
a
select * from t1 where a = 'AAA';
a
AAA
drop table t1;
create table t1 (
a char(3) character set latin1 collate latin1_swedish_ci primary key
) engine=ndb;
insert into t1 values('aAa');
insert into t1 values('aaa');
ERROR 23000: Duplicate entry 'aaa' for key 1
insert into t1 values('AAA');
ERROR 23000: Duplicate entry 'AAA' for key 1
select * from t1 order by a;
a
aAa
select * from t1 where a = 'aAa';
a
aAa
select * from t1 where a = 'aaa';
a
aAa
select * from t1 where a = 'AaA';
a
aAa
select * from t1 where a = 'AAA';
a
aAa
drop table t1;
create table t1 (
a varchar(20) character set latin1 collate latin1_swedish_ci primary key
) engine=ndb;
insert into t1 values ('A'),('b '),('C  '),('d      '),('E'),('f');
insert into t1 values('b');
ERROR 23000: Duplicate entry 'b' for key 1
insert into t1 values('a         ');
ERROR 23000: Duplicate entry 'a         ' for key 1
select a,length(a) from t1 order by a;
a	length(a)
A	1
b 	2
C  	3
d      	7
E	1
f	1
select a,length(a) from t1 order by a desc;
a	length(a)
f	1
E	1
d      	7
C  	3
b 	2
A	1
select * from t1 where a = 'a';
a
A
select * from t1 where a = 'a   ';
a
A
select * from t1 where a = 'd';
a
d      
drop table t1;
create table t1 (
p int primary key,
a char(3) character set latin1 collate latin1_bin not null,
unique key(a)
) engine=ndb;
insert into t1 values(1, 'aAa');
insert into t1 values(2, 'aaa');
insert into t1 values(3, 'AAA');
select * from t1 order by p;
p	a
1	aAa
2	aaa
3	AAA
select * from t1 where a = 'aAa';
p	a
1	aAa
select * from t1 where a = 'aaa';
p	a
2	aaa
select * from t1 where a = 'AaA';
p	a
select * from t1 where a = 'AAA';
p	a
3	AAA
drop table t1;
create table t1 (
p int primary key,
a char(3) character set latin1 collate latin1_swedish_ci not null,
unique key(a)
) engine=ndb;
insert into t1 values(1, 'aAa');
insert into t1 values(2, 'aaa');
ERROR 23000: Duplicate entry '2' for key 1
insert into t1 values(3, 'AAA');
ERROR 23000: Duplicate entry '3' for key 1
select * from t1 order by p;
p	a
1	aAa
select * from t1 where a = 'aAa';
p	a
1	aAa
select * from t1 where a = 'aaa';
p	a
1	aAa
select * from t1 where a = 'AaA';
p	a
1	aAa
select * from t1 where a = 'AAA';
p	a
1	aAa
drop table t1;
create table t1 (
p int primary key,
a varchar(20) character set latin1 collate latin1_swedish_ci not null,
unique key(a)
) engine=ndb;
insert into t1 values (1,'A'),(2,'b '),(3,'C  '),(4,'d      '),(5,'E'),(6,'f');
insert into t1 values(99,'b');
ERROR 23000: Duplicate entry '99' for key 1
insert into t1 values(99,'a         ');
ERROR 23000: Duplicate entry '99' for key 1
select a,length(a) from t1 order by a;
a	length(a)
A	1
b 	2
C  	3
d      	7
E	1
f	1
select a,length(a) from t1 order by a desc;
a	length(a)
f	1
E	1
d      	7
C  	3
b 	2
A	1
select * from t1 where a = 'a';
p	a
1	A
select * from t1 where a = 'a   ';
p	a
1	A
select * from t1 where a = 'd';
p	a
4	d      
drop table t1;
create table t1 (
p int primary key,
a char(3) character set latin1 collate latin1_bin not null,
index(a)
) engine=ndb;
insert into t1 values(1, 'aAa');
insert into t1 values(2, 'aaa');
insert into t1 values(3, 'AAA');
insert into t1 values(4, 'aAa');
insert into t1 values(5, 'aaa');
insert into t1 values(6, 'AAA');
select * from t1 order by p;
p	a
1	aAa
2	aaa
3	AAA
4	aAa
5	aaa
6	AAA
explain select * from t1 where a = 'zZz' order by p;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	a	a	3	const	10	Using where; Using filesort
select * from t1 where a = 'aAa' order by p;
p	a
1	aAa
4	aAa
select * from t1 where a = 'aaa' order by p;
p	a
2	aaa
5	aaa
select * from t1 where a = 'AaA' order by p;
p	a
select * from t1 where a = 'AAA' order by p;
p	a
3	AAA
6	AAA
drop table t1;
create table t1 (
p int primary key,
a char(3) character set latin1 collate latin1_swedish_ci not null,
index(a)
) engine=ndb;
insert into t1 values(1, 'aAa');
insert into t1 values(2, 'aaa');
insert into t1 values(3, 'AAA');
insert into t1 values(4, 'aAa');
insert into t1 values(5, 'aaa');
insert into t1 values(6, 'AAA');
select * from t1 order by p;
p	a
1	aAa
2	aaa
3	AAA
4	aAa
5	aaa
6	AAA
explain select * from t1 where a = 'zZz' order by p;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	a	a	3	const	10	Using where; Using filesort
select * from t1 where a = 'aAa' order by p;
p	a
1	aAa
2	aaa
3	AAA
4	aAa
5	aaa
6	AAA
select * from t1 where a = 'aaa' order by p;
p	a
1	aAa
2	aaa
3	AAA
4	aAa
5	aaa
6	AAA
select * from t1 where a = 'AaA' order by p;
p	a
1	aAa
2	aaa
3	AAA
4	aAa
5	aaa
6	AAA
select * from t1 where a = 'AAA' order by p;
p	a
1	aAa
2	aaa
3	AAA
4	aAa
5	aaa
6	AAA
drop table t1;
create table t1 (
p int primary key,
a varchar(20) character set latin1 collate latin1_swedish_ci not null,
index(a, p)
) engine=ndb;
insert into t1 values (1,'A'),(2,'b '),(3,'C  '),(4,'d      '),(5,'E'),(6,'f');
insert into t1 values (7,'a'),(8,'B '),(9,'c  '),(10,'D'),(11,'e'),(12,'F  ');
select p,a,length(a) from t1 order by a, p;
p	a	length(a)
1	A	1
7	a	1
2	b 	2
8	B 	2
3	C  	3
9	c  	3
4	d      	7
10	D	1
5	E	1
11	e	1
6	f	1
12	F  	3
select * from t1 where a = 'a  ' order by a desc, p desc;
p	a
7	a
1	A
select * from t1 where a >= 'D' order by a, p;
p	a
4	d      
10	D
5	E
11	e
6	f
12	F  
select * from t1 where a < 'D' order by a, p;
p	a
1	A
7	a
2	b 
8	B 
3	C  
9	c  
select count(*) from t1 x, t1 y, t1 z where x.a = y.a and y.a = z.a;
count(*)
48
drop table t1;
create table t1 (
a char(5) character set ucs2,
b varchar(7) character set utf8,
primary key(a, b)
) engine=ndb;
insert into t1 values
('a','A '),('B   ','b'),('c','C    '),('D','d'),('e  ','E'),('F','f  '),
('A','b '),('b   ','C'),('C','d  '),('d','E'),('E  ','f'),
('a','C '),('B   ','d'),('c','E  '),('D','f');
insert into t1 values('d','f');
ERROR 23000: Duplicate entry '' for key 1
select a,b,length(a),length(b) from t1 order by a,b limit 3;
a	b	length(a)	length(b)
a	A 	2	2
A	b 	2	2
a	C 	2	2
select a,b,length(a),length(b) from t1 order by a desc, b desc limit 3;
a	b	length(a)	length(b)
F	f  	2	3
E	f	2	1
e	E	2	1
select a,b,length(a),length(b) from t1 where a='c' and b='c';
a	b	length(a)	length(b)
c	C    	2	5
drop table t1;
create table t1 (
a char(10) primary key
) engine=ndb;
insert into t1 values ('jonas % ');
replace into t1 values ('jonas % ');
replace into t1 values ('jonas % ');
select * from t1;
a
jonas %
drop table t1;