SET DEFAULT_STORAGE_ENGINE = 'tokudb';
DROP TABLE IF EXISTS foo;
create table foo (a varchar (100), primary key (a));
insert into foo values ("a"),("B"),("c"),("D"),("e"),("F"),("A");
ERROR 23000: Duplicate entry 'A' for key 'PRIMARY'
insert into foo values ("a"),("B"),("c"),("D"),("e"),("F");
insert into foo values ("C");
ERROR 23000: Duplicate entry 'C' for key 'PRIMARY'
insert into foo values ("d");
ERROR 23000: Duplicate entry 'd' for key 'PRIMARY'
begin;
update foo set a="C" where a="c";
select * from foo;
a
a
B
C
D
e
F
rollback;
select * from foo;
a
a
B
c
D
e
F
select * from foo where a="c";
a
c
select * from foo where a="C";
a
c
select * from foo where a > "c";
a
D
e
F
select * from foo where a > "C";
a
D
e
F
select * from foo where a >= "c";
a
c
D
e
F
select * from foo where a >= "C";
a
c
D
e
F
select * from foo where a < "c";
a
a
B
select * from foo where a < "C";
a
a
B
select * from foo where a <= "c";
a
a
B
c
select * from foo where a <= "C";
a
a
B
c
update foo set a = "d" where a="a";
ERROR 23000: Duplicate entry 'd' for key 'PRIMARY'
update foo set a = "C" where a="a";
ERROR 23000: Duplicate entry 'C' for key 'PRIMARY'
drop table foo;
create table foo (a varchar (100), b int, primary key (a), key(b));
insert into foo values ("a",1000),("B",1),("c",10000),("D",10),("e",109),("F",1),("A",1);
ERROR 23000: Duplicate entry 'A' for key 'PRIMARY'
insert into foo values ("a",3),("B",1),("c",4),("D",2),("e",11),("F",8);
insert into foo values ("C",1);
ERROR 23000: Duplicate entry 'C' for key 'PRIMARY'
insert into foo values ("d",1);
ERROR 23000: Duplicate entry 'd' for key 'PRIMARY'
begin;
update foo set a="C" where a="c";
select * from foo;
a	b
B	1
D	2
a	3
C	4
F	8
e	11
rollback;
select * from foo;
a	b
B	1
D	2
a	3
c	4
F	8
e	11
update foo set a = "d" where a="a";
ERROR 23000: Duplicate entry 'd' for key 'PRIMARY'
update foo set a = "C" where a="a";
ERROR 23000: Duplicate entry 'C' for key 'PRIMARY'
drop table foo;
create table foo (a varchar (100), b int, unique key (a), primary key(b));
insert into foo values ("a",1000),("B",1),("c",10000),("D",10),("e",109),("F",1),("A",22);
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
insert into foo values ("a",3),("B",1),("c",4),("D",2),("e",11),("F",8);
insert into foo values ("C",100);
ERROR 23000: Duplicate entry 'C' for key 'a'
insert into foo values ("d",100);
ERROR 23000: Duplicate entry 'd' for key 'a'
begin;
update foo set a="C" where a="c";
select * from foo;
a	b
a	3
B	1
C	4
D	2
e	11
F	8
rollback;
select * from foo;
a	b
a	3
B	1
c	4
D	2
e	11
F	8
update foo set a = "d" where a="a";
ERROR 23000: Duplicate entry 'd' for key 'a'
update foo set a = "C" where a="a";
ERROR 23000: Duplicate entry 'C' for key 'a'
select * from foo where a="c";
a	b
c	4
select * from foo where a="C";
a	b
c	4
select * from foo where a > "c";
a	b
D	2
e	11
F	8
select * from foo where a > "C";
a	b
D	2
e	11
F	8
select * from foo where a >= "c";
a	b
c	4
D	2
e	11
F	8
select * from foo where a >= "C";
a	b
c	4
D	2
e	11
F	8
select * from foo where a < "c";
a	b
a	3
B	1
select * from foo where a < "C";
a	b
a	3
B	1
select * from foo where a <= "c";
a	b
a	3
B	1
c	4
select * from foo where a <= "C";
a	b
a	3
B	1
c	4
drop table foo;