DROP TABLE IF EXISTS t1,t2;
DROP TABLE IF EXISTS t1;
set @old_auto_increment_offset = @@session.auto_increment_offset;
set @old_auto_increment_increment = @@session.auto_increment_increment;
set @old_ndb_autoincrement_prefetch_sz = @@session.ndb_autoincrement_prefetch_sz;
flush status;
create table t1 (a int not null auto_increment primary key) engine ndb;
insert into t1 values (NULL);
select * from t1 order by a;
a
1
update t1 set a = 5 where a = 1;
insert into t1 values (NULL);
select * from t1 order by a;
a
5
6
insert into t1 values (7);
insert into t1 values (NULL);
select * from t1 order by a;
a
5
6
7
8
insert into t1 values (2);
insert into t1 values (NULL);
select * from t1 order by a;
a
2
5
6
7
8
9
update t1 set a = 4 where a = 2;
insert into t1 values (NULL);
select * from t1 order by a;
a
4
5
6
7
8
9
10
delete from t1 where a = 10;
insert into t1 values (NULL);
select * from t1 order by a;
a
4
5
6
7
8
9
11
replace t1 values (NULL);
select * from t1 order by a;
a
4
5
6
7
8
9
11
12
replace t1 values (15);
select * from t1 order by a;
a
4
5
6
7
8
9
11
12
15
replace into t1 values (NULL);
select * from t1 order by a;
a
4
5
6
7
8
9
11
12
15
16
replace t1 values (15);
select * from t1 order by a;
a
4
5
6
7
8
9
11
12
15
16
insert ignore into t1 values (NULL);
select * from t1 order by a;
a
4
5
6
7
8
9
11
12
15
16
17
insert ignore into t1 values (15), (NULL);
select * from t1 order by a;
a
4
5
6
7
8
9
11
12
15
16
17
18
insert into t1 values (15)
on duplicate key update a = 20;
insert into t1 values (NULL);
select * from t1 order by a;
a
4
5
6
7
8
9
11
12
16
17
18
20
21
insert into t1 values (NULL) on duplicate key update a = 30;
select * from t1 order by a;
a
4
5
6
7
8
9
11
12
16
17
18
20
21
22
insert into t1 values (30) on duplicate key update a = 40;
select * from t1 order by a;
a
4
5
6
7
8
9
11
12
16
17
18
20
21
22
30
insert ignore into t1 values(600),(NULL),(NULL),(610),(NULL);
select * from t1 order by a;
a
4
5
6
7
8
9
11
12
16
17
18
20
21
22
30
600
601
602
610
611
drop table t1;
create table t1 (a int not null primary key, 
b int not null unique auto_increment) engine ndb;
insert into t1 values (1, NULL);
insert into t1 values (3, NULL);
update t1 set b = 3 where a = 3;
insert into t1 values (4, NULL);
select * from t1 order by a;
a	b
1	1
3	3
4	4
drop table t1;
CREATE TABLE t1 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=NDBCLUSTER;
CREATE TABLE t2 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=MYISAM;
SET @@session.auto_increment_increment=10;
INSERT INTO t1 (b,c) VALUES (1,0),(2,1),(3,2);
INSERT INTO t2 (b,c) VALUES (1,0),(2,1),(3,2);
SELECT * FROM t1 ORDER BY pk;
pk	b	c
1	1	0
11	2	1
21	3	2
SELECT COUNT(t1.pk) FROM t1, t2 WHERE t1.pk = t2.pk AND t1.b = t2.b AND t1.c = t1.c;
COUNT(t1.pk)
3
TRUNCATE t1;
TRUNCATE t2;
SET @@session.auto_increment_offset=5;
INSERT INTO t1 (b,c) VALUES (1,0),(2,1),(3,2);
INSERT INTO t1 (pk,b,c) VALUES (27,4,3),(NULL,5,4),(99,6,5),(NULL,7,6);
INSERT INTO t2 (b,c) VALUES (1,0),(2,1),(3,2);
INSERT INTO t2 (pk,b,c) VALUES (27,4,3),(NULL,5,4),(99,6,5),(NULL,7,6);
SELECT * FROM t1 ORDER BY pk;
pk	b	c
5	1	0
15	2	1
25	3	2
27	4	3
35	5	4
99	6	5
105	7	6
SELECT COUNT(t1.pk) FROM t1, t2 WHERE t1.pk = t2.pk AND t1.b = t2.b AND t1.c = t1.c;
COUNT(t1.pk)
7
TRUNCATE t1;
TRUNCATE t2;
SET @@session.auto_increment_increment=2;
INSERT INTO t1 (b,c) VALUES (1,0),(2,1),(3,2);
INSERT INTO t2 (b,c) VALUES (1,0),(2,1),(3,2);
SELECT * FROM t1 ORDER BY pk;
pk	b	c
1	1	0
3	2	1
5	3	2
SELECT COUNT(t1.pk) FROM t1, t2 WHERE t1.pk = t2.pk AND t1.b = t2.b AND t1.c = t1.c;
COUNT(t1.pk)
3
DROP TABLE t1, t2;
CREATE TABLE t1 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=NDBCLUSTER AUTO_INCREMENT = 7;
CREATE TABLE t2 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=MYISAM AUTO_INCREMENT = 7;
SET @@session.auto_increment_offset=1;
SET @@session.auto_increment_increment=1;
INSERT INTO t1 (b,c) VALUES (1,0),(2,1),(3,2);
INSERT INTO t2 (b,c) VALUES (1,0),(2,1),(3,2);
SELECT * FROM t1 ORDER BY pk;
pk	b	c
7	1	0
8	2	1
9	3	2
SELECT COUNT(t1.pk) FROM t1, t2 WHERE t1.pk = t2.pk AND t1.b = t2.b AND t1.c = t1.c;
COUNT(t1.pk)
3
DROP TABLE t1, t2;
CREATE TABLE t1 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=NDBCLUSTER AUTO_INCREMENT = 3;
CREATE TABLE t2 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=MYISAM AUTO_INCREMENT = 3;
SET @@session.auto_increment_offset=5;
SET @@session.auto_increment_increment=10;
INSERT INTO t1 (b,c) VALUES (1,0),(2,1),(3,2);
INSERT INTO t2 (b,c) VALUES (1,0),(2,1),(3,2);
SELECT * FROM t1 ORDER BY pk;
pk	b	c
5	1	0
15	2	1
25	3	2
SELECT COUNT(t1.pk) FROM t1, t2 WHERE t1.pk = t2.pk AND t1.b = t2.b AND t1.c = t1.c;
COUNT(t1.pk)
3
DROP TABLE t1, t2;
CREATE TABLE t1 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=NDBCLUSTER AUTO_INCREMENT = 7;
CREATE TABLE t2 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=MYISAM AUTO_INCREMENT = 7;
SET @@session.auto_increment_offset=5;
SET @@session.auto_increment_increment=10;
INSERT INTO t1 (b,c) VALUES (1,0),(2,1),(3,2);
INSERT INTO t2 (b,c) VALUES (1,0),(2,1),(3,2);
SELECT * FROM t1 ORDER BY pk;
pk	b	c
15	1	0
25	2	1
35	3	2
SELECT COUNT(t1.pk) FROM t1, t2 WHERE t1.pk = t2.pk AND t1.b = t2.b AND t1.c = t1.c;
COUNT(t1.pk)
3
DROP TABLE t1, t2;
CREATE TABLE t1 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=NDBCLUSTER AUTO_INCREMENT = 5;
CREATE TABLE t2 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=MYISAM AUTO_INCREMENT = 5;
SET @@session.auto_increment_offset=5;
SET @@session.auto_increment_increment=10;
INSERT INTO t1 (b,c) VALUES (1,0),(2,1),(3,2);
INSERT INTO t2 (b,c) VALUES (1,0),(2,1),(3,2);
SELECT * FROM t1 ORDER BY pk;
pk	b	c
5	1	0
15	2	1
25	3	2
SELECT COUNT(t1.pk) FROM t1, t2 WHERE t1.pk = t2.pk AND t1.b = t2.b AND t1.c = t1.c;
COUNT(t1.pk)
3
DROP TABLE t1, t2;
CREATE TABLE t1 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=NDBCLUSTER AUTO_INCREMENT = 100;
CREATE TABLE t2 (
pk INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
b INT NOT NULL,
c INT NOT NULL UNIQUE
) ENGINE=MYISAM AUTO_INCREMENT = 100;
SET @@session.auto_increment_offset=5;
SET @@session.auto_increment_increment=10;
INSERT INTO t1 (b,c) VALUES (1,0),(2,1),(3,2);
INSERT INTO t2 (b,c) VALUES (1,0),(2,1),(3,2);
SELECT * FROM t1 ORDER BY pk;
pk	b	c
105	1	0
115	2	1
125	3	2
SELECT COUNT(t1.pk) FROM t1, t2 WHERE t1.pk = t2.pk AND t1.b = t2.b AND t1.c = t1.c;
COUNT(t1.pk)
3
DROP TABLE t1, t2;
SET @@session.auto_increment_offset=1;
SET @@session.auto_increment_increment=1;
set ndb_autoincrement_prefetch_sz = 32;
drop table if exists t1;
SET @@session.auto_increment_offset=1;
SET @@session.auto_increment_increment=1;
set ndb_autoincrement_prefetch_sz = 32;
create table t1 (a int not null auto_increment primary key) engine ndb;
insert into t1 values (NULL);
insert into t1 values (NULL);
select * from t1 order by a;
a
1
33
insert into t1 values (20);
insert into t1 values (NULL);
select * from t1 order by a;
a
1
20
33
34
insert into t1 values (35);
insert into t1 values (NULL);
insert into t1 values (NULL);
ERROR 23000: Duplicate entry '35' for key 1
select * from t1 order by a;
a
1
20
33
34
35
65
insert into t1 values (100);
insert into t1 values (NULL);
insert into t1 values (NULL);
select * from t1 order by a;
a
1
20
33
34
35
65
66
100
101
set auto_increment_offset = @old_auto_increment_offset;
set auto_increment_increment = @old_auto_increment_increment;
set ndb_autoincrement_prefetch_sz = @old_ndb_autoincrement_prefetch_sz;
drop table t1;