DROP TABLE IF EXISTS t1;
# test without partitioning for reference
CREATE TABLE t1 (
c1 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c1))
ENGINE='MyISAM';
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
AND TABLE_NAME='t1';
AUTO_INCREMENT
1
INSERT INTO t1 VALUES (2);
INSERT INTO t1 VALUES (4);
INSERT INTO t1 VALUES (NULL);
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
AND TABLE_NAME='t1';
AUTO_INCREMENT
6
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
AND TABLE_NAME='t1';
AUTO_INCREMENT
6
INSERT INTO t1 VALUES (0);
INSERT INTO t1 VALUES (5), (16);
INSERT INTO t1 VALUES (17);
INSERT INTO t1 VALUES (19), (NULL);
INSERT INTO t1 VALUES (NULL), (10), (NULL);
INSERT INTO t1 VALUES (NULL);
SET INSERT_ID = 30;
INSERT INTO t1 VALUES (NULL);
SET INSERT_ID = 29;
INSERT INTO t1 VALUES (NULL), (NULL), (NULL);
INSERT INTO t1 VALUES (NULL);
UPDATE t1 SET c1 = 50 WHERE c1 = 17;
UPDATE t1 SET c1 = 51 WHERE c1 = 19;
FLUSH TABLES;
UPDATE t1 SET c1 = 40 WHERE c1 = 50;
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
  AND TABLE_NAME='t1';
AUTO_INCREMENT
52
UPDATE t1 SET c1 = NULL WHERE c1 = 4;
Warnings:
Warning	1048	Column 'c1' cannot be null
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (NULL);
SELECT * FROM t1 ORDER BY c1;
c1
0
2
5
6
10
20
21
22
23
29
30
31
40
51
52
53
DROP TABLE t1;
CREATE TABLE t1 (
c1 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c1))
ENGINE='MyISAM';
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
FLUSH TABLE;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t1 VALUES (4);
FLUSH TABLE;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=5 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t1 VALUES (NULL);
FLUSH TABLE;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=6 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DELETE FROM t1;
INSERT INTO t1 VALUES (NULL);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=7 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
SELECT * FROM t1 ORDER BY c1;
c1
6
TRUNCATE TABLE t1;
INSERT INTO t1 VALUES (NULL);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
SELECT * FROM t1 ORDER BY c1;
c1
1
INSERT INTO t1 VALUES (100);
INSERT INTO t1 VALUES (NULL);
DELETE FROM t1 WHERE c1 >= 100;
OPTIMIZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=102 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
CREATE TABLE t1
(a INT NULL AUTO_INCREMENT,
UNIQUE KEY (a))
ENGINE='MyISAM';
SET LAST_INSERT_ID = 999;
SET INSERT_ID = 0;
INSERT INTO t1 SET a = 1 ON DUPLICATE KEY UPDATE a = NULL;
SELECT LAST_INSERT_ID();
LAST_INSERT_ID()
999
SELECT * FROM t1;
a
1
INSERT INTO t1 SET a = 1 ON DUPLICATE KEY UPDATE a = NULL;
SELECT LAST_INSERT_ID();
LAST_INSERT_ID()
999
SELECT * FROM t1;
a
0
UPDATE t1 SET a = 1 WHERE a IS NULL;
SELECT LAST_INSERT_ID();
LAST_INSERT_ID()
999
SELECT * FROM t1;
a
0
UPDATE t1 SET a = NULL WHERE a = 1;
SELECT LAST_INSERT_ID();
LAST_INSERT_ID()
999
SELECT * FROM t1;
a
0
DROP TABLE t1;
SET INSERT_ID = 1;
# Simple test with NULL
CREATE TABLE t1 (
c1 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c1))
ENGINE='MyISAM'
PARTITION BY HASH(c1)
PARTITIONS 2;
INSERT INTO t1 VALUES (NULL);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
SELECT * FROM t1;
c1
1
DROP TABLE t1;
# Test with sql_mode and first insert as 0
CREATE TABLE t1 (
c1 INT,
c2 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c2))
ENGINE='MyISAM'
PARTITION BY HASH(c2)
PARTITIONS 2;
INSERT INTO t1 VALUES (1, NULL);
INSERT INTO t1 VALUES (1, 1), (99, 99);
INSERT INTO t1 VALUES (1, NULL);
SET @@session.sql_mode = 'NO_AUTO_VALUE_ON_ZERO';
INSERT INTO t1 VALUES (1, 0);
SELECT * FROM t1 ORDER BY c1, c2;
c1	c2
1	0
1	1
1	2
DROP TABLE t1;
CREATE TABLE t1 (
c1 INT,
c2 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c2))
ENGINE='MyISAM'
PARTITION BY HASH(c2)
PARTITIONS 2;
INSERT INTO t1 VALUES (1, 0);
INSERT INTO t1 VALUES (1, 1), (1, NULL);
INSERT INTO t1 VALUES (2, NULL), (4, 7);
INSERT INTO t1 VALUES (1, NULL);
SELECT * FROM t1 ORDER BY c1, c2;
c1	c2
1	0
1	1
1	2
1	8
2	3
4	7
SET @@session.sql_mode = '';
DROP TABLE t1;
# Simple test with NULL, 0 and explicit values both incr. and desc.
CREATE TABLE t1 (
c1 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c1))
ENGINE='MyISAM'
PARTITION BY HASH(c1)
PARTITIONS 2;
INSERT INTO t1 VALUES (2), (4), (NULL);
INSERT INTO t1 VALUES (0);
INSERT INTO t1 VALUES (5), (16);
INSERT INTO t1 VALUES (17), (19), (NULL);
INSERT INTO t1 VALUES (NULL), (10), (NULL);
INSERT INTO t1 VALUES (NULL), (9);
INSERT INTO t1 VALUES (59), (55);
INSERT INTO t1 VALUES (NULL), (90);
INSERT INTO t1 VALUES (NULL);
UPDATE t1 SET c1 = 150 WHERE c1 = 17;
UPDATE t1 SET c1 = 151 WHERE c1 = 19;
FLUSH TABLES;
UPDATE t1 SET c1 = 140 WHERE c1 = 150;
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
  AND TABLE_NAME='t1';
AUTO_INCREMENT
152
UPDATE t1 SET c1 = NULL WHERE c1 = 4;
Warnings:
Warning	1048	Column 'c1' cannot be null
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (NULL);
SELECT * FROM t1 ORDER BY c1;
c1
0
2
5
6
9
10
20
21
22
23
55
59
60
90
91
140
151
152
153
DROP TABLE t1;
# Test with auto_increment_increment and auto_increment_offset.
CREATE TABLE t1 (
c1 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c1))
ENGINE='MyISAM'
PARTITION BY HASH(c1)
PARTITIONS 2;
SET @@session.auto_increment_increment = 10;
SET @@session.auto_increment_offset = 5;
INSERT INTO t1 VALUES (1);
INSERT INTO t1 VALUES (NULL), (NULL), (NULL);
SET @@session.auto_increment_increment = 5;
SET @@session.auto_increment_offset = 3;
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (33 + 1);
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (38 + 2);
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (43 + 3);
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (48 + 4);
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (53 + 5);
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (63 + 6);
INSERT INTO t1 VALUES (NULL);
SET @@session.auto_increment_increment = 1;
SET @@session.auto_increment_offset = 1;
SELECT * FROM t1 ORDER BY c1;
c1
1
5
15
25
33
34
38
40
43
46
48
52
53
58
63
69
73
DROP TABLE t1;
# Test reported auto_increment value
CREATE TABLE t1 (
c1 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c1))
ENGINE='MyISAM'
PARTITION BY HASH (c1)
PARTITIONS 2;
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
AND TABLE_NAME='t1';
AUTO_INCREMENT
1
INSERT INTO t1 VALUES (2);
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
AND TABLE_NAME='t1';
AUTO_INCREMENT
3
INSERT INTO t1 VALUES (4);
INSERT INTO t1 VALUES (NULL);
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
AND TABLE_NAME='t1';
AUTO_INCREMENT
6
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (17);
INSERT INTO t1 VALUES (19);
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (NULL);
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
AND TABLE_NAME='t1';
AUTO_INCREMENT
22
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
AND TABLE_NAME='t1';
AUTO_INCREMENT
22
INSERT INTO t1 VALUES (10);
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
6
10
17
19
20
21
INSERT INTO t1 VALUES (NULL);
SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test'
AND TABLE_NAME='t1';
AUTO_INCREMENT
23
INSERT INTO t1 VALUES (NULL);
INSERT INTO t1 VALUES (15);
INSERT INTO t1 VALUES (NULL);
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
6
10
15
17
19
20
21
22
23
24
INSERT INTO t1 VALUES (NULL);
DELETE FROM t1;
INSERT INTO t1 VALUES (NULL);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=27 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
SELECT * FROM t1 ORDER BY c1;
c1
26
TRUNCATE TABLE t1;
INSERT INTO t1 VALUES (NULL);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
SELECT * FROM t1 ORDER BY c1;
c1
1
INSERT INTO t1 VALUES (100);
INSERT INTO t1 VALUES (NULL);
DELETE FROM t1 WHERE c1 >= 100;
OPTIMIZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=102 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
DROP TABLE t1;
# Test with two threads
connection default;
CREATE TABLE t1 (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY (c1))
ENGINE = 'MyISAM'
PARTITION BY HASH(c1)
PARTITIONS 2;
INSERT INTO t1 (c1) VALUES (2);
INSERT INTO t1 (c1) VALUES (4);
connect con1, localhost, root,,;
connection con1;
INSERT INTO t1 (c1) VALUES (NULL);
INSERT INTO t1 (c1) VALUES (10);
connection default;
INSERT INTO t1 (c1) VALUES (NULL);
INSERT INTO t1 (c1) VALUES (NULL);
INSERT INTO t1 (c1) VALUES (19);
INSERT INTO t1 (c1) VALUES (21);
connection con1;
INSERT INTO t1 (c1) VALUES (NULL);
connection default;
INSERT INTO t1 (c1) VALUES (16);
connection con1;
INSERT INTO t1 (c1) VALUES (NULL);
disconnect con1;
connection default;
INSERT INTO t1 (c1) VALUES (NULL);
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
10
11
12
16
19
21
22
23
24
DROP TABLE t1;
# Test with two threads + start transaction NO PARTITIONING
connect con1, localhost, root,,;
connection default;
CREATE TABLE t1 (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY (c1))
ENGINE = 'MyISAM';
START TRANSACTION;
INSERT INTO t1 (c1) VALUES (2);
INSERT INTO t1 (c1) VALUES (4);
connection con1;
START TRANSACTION;
INSERT INTO t1 (c1) VALUES (NULL);
INSERT INTO t1 (c1) VALUES (10);
connection default;
INSERT INTO t1 (c1) VALUES (NULL);
INSERT INTO t1 (c1) VALUES (NULL);
INSERT INTO t1 (c1) VALUES (19);
INSERT INTO t1 (c1) VALUES (21);
connection con1;
INSERT INTO t1 (c1) VALUES (NULL);
connection default;
INSERT INTO t1 (c1) VALUES (16);
connection con1;
INSERT INTO t1 (c1) VALUES (NULL);
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
10
11
12
16
19
21
22
23
COMMIT;
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
10
11
12
16
19
21
22
23
disconnect con1;
connection default;
INSERT INTO t1 (c1) VALUES (NULL);
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
10
11
12
16
19
21
22
23
24
COMMIT;
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
10
11
12
16
19
21
22
23
24
DROP TABLE t1;
# Test with two threads + start transaction
connect con1, localhost, root,,;
connection default;
CREATE TABLE t1 (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY (c1))
ENGINE = 'MyISAM'
PARTITION BY HASH(c1)
PARTITIONS 2;
START TRANSACTION;
INSERT INTO t1 (c1) VALUES (2);
INSERT INTO t1 (c1) VALUES (4);
connection con1;
START TRANSACTION;
INSERT INTO t1 (c1) VALUES (NULL), (10);
connection default;
INSERT INTO t1 (c1) VALUES (NULL), (NULL), (19);
INSERT INTO t1 (c1) VALUES (21);
connection con1;
INSERT INTO t1 (c1) VALUES (NULL);
connection default;
INSERT INTO t1 (c1) VALUES (16);
connection con1;
INSERT INTO t1 (c1) VALUES (NULL);
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
10
11
12
16
19
21
22
23
COMMIT;
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
10
11
12
16
19
21
22
23
disconnect con1;
connection default;
INSERT INTO t1 (c1) VALUES (NULL);
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
10
11
12
16
19
21
22
23
24
COMMIT;
SELECT * FROM t1 ORDER BY c1;
c1
2
4
5
10
11
12
16
19
21
22
23
24
DROP TABLE t1;
# Test with another column after
CREATE TABLE t1 (
c1 INT NOT NULL AUTO_INCREMENT,
c2 INT,
PRIMARY KEY (c1,c2))
ENGINE = 'MyISAM'
PARTITION BY HASH(c2)
PARTITIONS 2;
INSERT INTO t1 VALUES (1, 0);
INSERT INTO t1 VALUES (1, 1);
INSERT INTO t1 VALUES (NULL, 1), (NULL, 2), (NULL, 3);
INSERT INTO t1 VALUES (NULL, 3);
INSERT INTO t1 VALUES (2, 0), (NULL, 2);
INSERT INTO t1 VALUES (2, 2);
INSERT INTO t1 VALUES (2, 22);
INSERT INTO t1 VALUES (NULL, 2);
SELECT * FROM t1 ORDER BY c1,c2;
c1	c2
1	0
1	1
2	0
2	1
2	2
2	22
3	2
4	3
5	3
6	2
7	2
DROP TABLE t1;
# Test with another column before
CREATE TABLE t1 (
c1 INT,
c2 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c2))
ENGINE = 'MyISAM'
PARTITION BY HASH(c2)
PARTITIONS 2;
INSERT INTO t1 VALUES (1, 0);
INSERT INTO t1 VALUES (1, 1);
INSERT INTO t1 VALUES (1, NULL);
INSERT INTO t1 VALUES (2, NULL), (3, 11), (3, NULL), (2, 0);
INSERT INTO t1 VALUES (2, NULL);
INSERT INTO t1 VALUES (2, 2);
INSERT INTO t1 VALUES (2, 22);
INSERT INTO t1 VALUES (2, NULL);
SELECT * FROM t1 ORDER BY c1,c2;
c1	c2
1	1
1	2
2	3
2	13
2	14
2	22
2	23
3	11
3	12
DROP TABLE t1;
# Test with auto_increment on secondary column in multi-column-index
CREATE TABLE t1 (
c1 INT,
c2 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c1,c2))
ENGINE = 'MyISAM'
PARTITION BY HASH(c2)
PARTITIONS 2;
INSERT INTO t1 VALUES (1, 0);
INSERT INTO t1 VALUES (1, 1);
INSERT INTO t1 VALUES (1, NULL);
INSERT INTO t1 VALUES (2, NULL);
INSERT INTO t1 VALUES (3, NULL);
INSERT INTO t1 VALUES (3, NULL), (2, 0), (2, NULL);
INSERT INTO t1 VALUES (2, 2);
INSERT INTO t1 VALUES (2, 22), (2, NULL);
SELECT * FROM t1 ORDER BY c1,c2;
c1	c2
1	1
1	2
2	1
2	2
2	3
2	22
2	23
3	1
3	2
DROP TABLE t1;
# Test AUTO_INCREMENT in CREATE
CREATE TABLE t1 (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY (c1))
ENGINE = 'MyISAM'
AUTO_INCREMENT = 15
PARTITION BY HASH(c1)
PARTITIONS 2;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=15 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
INSERT INTO t1 (c1) VALUES (4);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=15 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
INSERT INTO t1 (c1) VALUES (0);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=16 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
INSERT INTO t1 (c1) VALUES (NULL);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=17 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
SELECT * FROM t1 ORDER BY c1;
c1
4
15
16
# Test sql_mode 'NO_AUTO_VALUE_ON_ZERO'
SET @@session.sql_mode = 'NO_AUTO_VALUE_ON_ZERO';
INSERT INTO t1 (c1) VALUES (300);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=301 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
INSERT INTO t1 (c1) VALUES (0);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=301 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
INSERT INTO t1 (c1) VALUES (NULL);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=302 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
SELECT * FROM t1 ORDER BY c1;
c1
0
4
15
16
300
301
SET @@session.sql_mode = '';
DROP TABLE t1;
# Test SET INSERT_ID
CREATE TABLE t1 (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY (c1))
ENGINE = 'MyISAM'
PARTITION BY HASH(c1)
PARTITIONS 2;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
INSERT INTO t1 (c1) VALUES (NULL);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
SELECT * FROM t1;
c1
1
SET INSERT_ID = 23;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
INSERT INTO t1 (c1) VALUES (NULL);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=24 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
SET INSERT_ID = 22;
INSERT INTO t1 VALUES (NULL), (NULL), (NULL);
INSERT INTO t1 VALUES (NULL);
SELECT * FROM t1 ORDER BY c1;
c1
1
22
23
24
DROP TABLE t1;
# Testing with FLUSH TABLE
CREATE TABLE t1 (
c1 INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (c1))
ENGINE='MyISAM'
PARTITION BY HASH(c1)
PARTITIONS 2;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
FLUSH TABLE;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
INSERT INTO t1 VALUES (4);
FLUSH TABLE;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=5 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
INSERT INTO t1 VALUES (NULL);
FLUSH TABLE;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=6 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 PARTITION BY HASH (`c1`)
PARTITIONS 2
SELECT * FROM t1 ORDER BY c1;
c1
4
5
DROP TABLE t1;
#############################################################################
# Bug #45823 - Assertion failure in file row/row0mysql.c line 1386
# Bug #43988 - AUTO_INCREMENT errors with partitioned InnoDB tables in 5.1.31
##############################################################################
# Inserting negative autoincrement values into a partition table (partitions >= 4)
CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
INSERT INTO t(c2) VALUES (10);
INSERT INTO t(c2) VALUES (20);
INSERT INTO t VALUES (-1,-10);
INSERT INTO t(c2) VALUES (30);
INSERT INTO t(c2) VALUES (40);
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-1	-10
1	10
2	20
3	30
4	40
DROP TABLE t;
# Reading from a partition table (partitions >= 2 ) after inserting a negative
# value into the auto increment column
CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 2;
INSERT INTO t VALUES (-2,-20);
INSERT INTO t(c2) VALUES (30);
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-2	-20
1	30
DROP TABLE t;
# Inserting negative auto increment value into a partition table (partitions >= 2)
# auto increment value > 2.
CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 2;
INSERT INTO t VALUES (-4,-20);
INSERT INTO t(c2) VALUES (30);
INSERT INTO t(c2) VALUES (40);
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-4	-20
1	30
2	40
DROP TABLE t;
# Inserting -1 into autoincrement column of a partition table (partition >= 4)
CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
INSERT INTO t(c2) VALUES (10);
INSERT INTO t(c2) VALUES (20);
INSERT INTO t VALUES (-1,-10);
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-1	-10
1	10
2	20
INSERT INTO t(c2) VALUES (30);
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-1	-10
1	10
2	20
3	30
DROP TABLE t;
# Deleting from an auto increment table after inserting negative values
CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
INSERT INTO t(c2) VALUES (10);
INSERT INTO t(c2) VALUES (20);
INSERT INTO t VALUES (-1,-10);
INSERT INTO t(c2) VALUES (30);
INSERT INTO t VALUES (-3,-20);
INSERT INTO t(c2) VALUES (40);
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-3	-20
-1	-10
1	10
2	20
3	30
4	40
DELETE FROM t WHERE c1 > 1;
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-3	-20
-1	-10
1	10
DROP TABLE t;
# Inserting a positive value that exceeds maximum allowed value for an
# Auto Increment column (positive maximum)
CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
INSERT INTO t(c2) VALUES (10);
INSERT INTO t(c2) VALUES (20);
INSERT INTO t VALUES (126,30);
INSERT INTO t VALUES (127,40);
INSERT INTO t VALUES (128,50);
ERROR 23000: Duplicate entry '127' for key 'PRIMARY'
INSERT INTO t VALUES (129,60);
ERROR 23000: Duplicate entry '127' for key 'PRIMARY'
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
1	10
2	20
126	30
127	40
DROP TABLE t;
# Inserting a negative value that goes below minimum allowed value for an
# Auto Increment column (negative minimum)
CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
INSERT INTO t(c2) VALUES (10);
INSERT INTO t(c2) VALUES (20);
INSERT INTO t VALUES (-127,30);
INSERT INTO t VALUES (-128,40);
INSERT INTO t VALUES (-129,50);
ERROR 23000: Duplicate entry '-128' for key 'PRIMARY'
INSERT INTO t VALUES (-130,60);
ERROR 23000: Duplicate entry '-128' for key 'PRIMARY'
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-128	40
-127	30
1	10
2	20
DROP TABLE t;
# Updating the partition table with a negative Auto Increment value
CREATE TABLE t (c1 INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
INSERT INTO t(c2) VALUES (10);
INSERT INTO t(c2) VALUES (20);
INSERT INTO t VALUES (-1,-10);
INSERT INTO t(c2) VALUES (30);
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-1	-10
1	10
2	20
3	30
UPDATE t SET c1 = -6 WHERE c1 = 2;
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-6	20
-1	-10
1	10
3	30
INSERT INTO t(c2) VALUES (40);
INSERT INTO t(c2) VALUES (50);
UPDATE t SET c1 = -6 WHERE c1 = 2;
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-6	20
-1	-10
1	10
3	30
4	40
5	50
DROP TABLE t;
# Updating the partition table with a value that crosses the upper limits
# on both the positive and the negative side.
CREATE TABLE t (c1 TINYINT NOT NULL AUTO_INCREMENT, PRIMARY KEY(c1),
c2 INT) ENGINE='MyISAM' PARTITION BY HASH(c1) PARTITIONS 4;
INSERT INTO t(c2) VALUES (10);
INSERT INTO t(c2) VALUES (20);
INSERT INTO t VALUES (126,30);
INSERT INTO t VALUES (127,40);
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
1	10
2	20
126	30
127	40
UPDATE t SET c1 = 130 where c1 = 127;
Warnings:
Warning	1264	Out of range value for column 'c1' at row 1
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
1	10
2	20
126	30
127	40
UPDATE t SET c1 = -140 where c1 = 126;
Warnings:
Warning	1264	Out of range value for column 'c1' at row 1
SELECT * FROM t ORDER BY c1 ASC;
c1	c2
-128	30
1	10
2	20
127	40
DROP TABLE t;
CREATE TABLE t1
(a INT NULL AUTO_INCREMENT,
UNIQUE KEY (a))
ENGINE='MyISAM'
PARTITION BY KEY(a) PARTITIONS 2;
SET LAST_INSERT_ID = 999;
SET INSERT_ID = 0;
INSERT INTO t1 SET a = 1 ON DUPLICATE KEY UPDATE a = NULL;
SELECT LAST_INSERT_ID();
LAST_INSERT_ID()
999
SELECT * FROM t1;
a
1
INSERT INTO t1 SET a = 1 ON DUPLICATE KEY UPDATE a = NULL;
SELECT LAST_INSERT_ID();
LAST_INSERT_ID()
999
SELECT * FROM t1;
a
0
UPDATE t1 SET a = 1 WHERE a IS NULL;
SELECT LAST_INSERT_ID();
LAST_INSERT_ID()
999
SELECT * FROM t1;
a
0
UPDATE t1 SET a = NULL WHERE a = 1;
SELECT LAST_INSERT_ID();
LAST_INSERT_ID()
999
SELECT * FROM t1;
a
0
DROP TABLE t1;
##############################################################################
#
# MDEV-19622 Assertion failures in
# ha_partition::set_auto_increment_if_higher upon UPDATE on Aria table
#
CREATE OR REPLACE TABLE t1 (pk INT AUTO_INCREMENT, a INT, KEY(pk)) ENGINE='MyISAM' PARTITION BY HASH(a);
INSERT INTO t1 VALUES (1,1),(2,2);
UPDATE t1 SET pk = 0;
DROP TABLE t1;
#
# MDEV-21027 Assertion `part_share->auto_inc_initialized || !can_use_for_auto_inc_init()'
# ha_partition::set_auto_increment_if_higher
#
CREATE TABLE t1 (a INT AUTO_INCREMENT PRIMARY KEY) ENGINE='MyISAM' PARTITION BY HASH (a) PARTITIONS 3;
REPLACE INTO t1 PARTITION (p0) VALUES (3);
DROP TABLE t1;
#
# MDEV-21310 AUTO_INCREMENT column throws range error on INSERT in  partitioned table |
# Assertion `part_share->auto_inc_initialized || !can_use_for_auto_inc_init()' failed.
#
CREATE TABLE t1 (c INT AUTO_INCREMENT KEY) ENGINE='MyISAM' PARTITION BY LIST (c) (PARTITION p1 VALUES IN (1), PARTITION p2 VALUES IN (2));
ALTER TABLE t1 TRUNCATE PARTITION p1;
INSERT INTO t1 PARTITION (p1) (c) SELECT 1;
DROP TABLE t1;