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 (
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 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 (
a char(10) primary key
) engine=ndbcluster default charset=latin1;
insert into t1 values ('aaabb');
select * from t1;
a
aaabb
replace into t1 set a = 'AAABB';
select * from t1;
a
AAABB
replace into t1 set a = 'aAaBb';
select * from t1;
a
aAaBb
replace into t1 set a = 'aaabb';
select * from t1;
a
aaabb
drop table t1;