ALTER DATABASE test CHARACTER SET latin1 COLLATE latin1_swedish_ci;
#
# MDEV-6076 Persistent AUTO_INCREMENT for InnoDB
#
# WL#6204 InnoDB persistent max value for autoinc columns
#
# Most of this test case is copied from the test innodb.autoinc_persist
# that was introduced in MySQL 8.0.0. The observable behaviour
# of MDEV-6076 is equivalent to WL#6204, with the exception that
# there is less buffering taking place and redo log checkpoints
# are not being treated specially.
# Due to less buffering, there is no debug instrumentation testing
# for MDEV-6076.
#
# Pre-create several tables
SET SQL_MODE='STRICT_ALL_TABLES';
CREATE TABLE t1(a TINYINT AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t1 VALUES(0), (0), (0), (0), (-1), (-10), (0),
(20), (30), (31);
SELECT * FROM t1;
a
-10
-1
1
2
3
4
5
20
30
31
CREATE TABLE t2(a TINYINT UNSIGNED AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t2 VALUES(-5);
ERROR 22003: Out of range value for column 'a' at row 1
INSERT INTO t2 VALUES(0), (0), (0), (0), (8), (10), (0),
(20), (30), (31);
SELECT * FROM t2;
a
1
2
3
4
8
10
11
20
30
31
CREATE TABLE t3(a SMALLINT AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t3 VALUES(0), (0), (0), (0), (-1), (-10), (0),
(20), (30), (31), (1024), (4096);
SELECT * FROM t3;
a
-10
-1
1
2
3
4
5
20
30
31
1024
4096
CREATE TABLE t4(a SMALLINT UNSIGNED AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t4 VALUES(-5);
ERROR 22003: Out of range value for column 'a' at row 1
INSERT INTO t4 VALUES(0), (0), (0), (0), (8), (10), (0),
(20), (30), (31), (1024), (4096);
SELECT * FROM t4;
a
1
2
3
4
8
10
11
20
30
31
1024
4096
CREATE TABLE t5(a MEDIUMINT AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t5 VALUES(0), (0), (0), (0), (-1), (-10), (0),
(20), (30), (31), (1000000), (1000005);
SELECT * FROM t5;
a
-10
-1
1
2
3
4
5
20
30
31
1000000
1000005
CREATE TABLE t6(a MEDIUMINT UNSIGNED AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t6 VALUES(-5);
ERROR 22003: Out of range value for column 'a' at row 1
INSERT INTO t6 VALUES(0), (0), (0), (0), (8), (10), (0),
(20), (30), (31), (1000000), (1000005);
SELECT * FROM t6;
a
1
2
3
4
8
10
11
20
30
31
1000000
1000005
CREATE TABLE t7(a INT AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t7 VALUES(0), (0), (0), (0), (-1), (-10), (0),
(20), (30), (31), (100000000), (100000008);
SELECT * FROM t7;
a
-10
-1
1
2
3
4
5
20
30
31
100000000
100000008
CREATE TABLE t8(a INT UNSIGNED AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t8 VALUES(-5);
ERROR 22003: Out of range value for column 'a' at row 1
INSERT INTO t8 VALUES(0), (0), (0), (0), (8), (10), (0),
(20), (30), (31), (100000000), (100000008);
SELECT * FROM t8;
a
1
2
3
4
8
10
11
20
30
31
100000000
100000008
CREATE TABLE t9(a BIGINT AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t9 VALUES(0), (0), (0), (0), (-1), (-10), (0),
(20), (30), (31), (100000000000), (100000000006);
SELECT * FROM t9;
a
-10
-1
1
2
3
4
5
20
30
31
100000000000
100000000006
CREATE TABLE t10(a BIGINT UNSIGNED AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t10 VALUES(-5);
ERROR 22003: Out of range value for column 'a' at row 1
INSERT INTO t10 VALUES(0), (0), (0), (0), (8), (10), (0),
(20), (30), (31), (100000000000), (100000000006);
SELECT * FROM t10;
a
1
2
3
4
8
10
11
20
30
31
100000000000
100000000006
CREATE TABLE t11(a FLOAT AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t11 VALUES(0), (0), (0), (0), (-1), (-10), (0), (20), (30), (31);
SELECT * FROM t11;
a
-10
-1
1
2
3
4
5
20
30
31
CREATE TABLE t11u(a FLOAT UNSIGNED AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t11u VALUES(0), (0), (0), (0), (-1), (-10), (0), (20), (30), (31);
ERROR 22003: Out of range value for column 'a' at row 5
INSERT INTO t11u VALUES(0), (0), (0), (0), (0), (20), (30), (31);
SELECT * FROM t11u;
a
11
12
13
14
15
20
30
31
CREATE TABLE t12(a DOUBLE AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t12 VALUES(0), (0), (0), (0), (-1), (-10), (0), (20), (30), (31);
SELECT * FROM t12;
a
-10
-1
1
2
3
4
5
20
30
31
CREATE TABLE t12u(a DOUBLE UNSIGNED AUTO_INCREMENT KEY) ENGINE = InnoDB;
INSERT INTO t12u VALUES(0), (0), (0), (0), (-1), (-10), (0), (20), (30), (31);
ERROR 22003: Out of range value for column 'a' at row 5
INSERT INTO t12u VALUES(0), (0), (0), (0), (0), (20), (30), (31);
SELECT * FROM t12u;
a
11
12
13
14
15
20
30
31
# Scenario 1: Normal restart, to test if the counters are persisted
# Scenario 2: Delete some values, to test the counters should not be the
# one which is the largest in current table
DELETE FROM t1 WHERE a > 30;
SELECT MAX(a) AS `Expect 30` FROM t1;
Expect 30
30
DELETE FROM t3 WHERE a > 2000;
SELECT MAX(a) AS `Expect 2000` FROM t3;
Expect 2000
1024
DELETE FROM t5 WHERE a > 1000000;
SELECT MAX(a) AS `Expect 1000000` FROM t5;
Expect 1000000
1000000
DELETE FROM t7 WHERE a > 100000000;
SELECT MAX(a) AS `Expect 100000000` FROM t7;
Expect 100000000
100000000
DELETE FROM t9 WHERE a > 100000000000;
SELECT MAX(a) AS `Expect 100000000000` FROM t9;
Expect 100000000000
100000000000
CREATE TABLE t13(a INT AUTO_INCREMENT KEY) ENGINE = InnoDB,
AUTO_INCREMENT = 1234;
# restart
SHOW CREATE TABLE t13;
Table	Create Table
t13	CREATE TABLE `t13` (
  `a` int(11) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=1234 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t13 VALUES(0);
SELECT a AS `Expect 1234` FROM t13;
Expect 1234
1234
DROP TABLE t13;
INSERT INTO t1 VALUES(0), (0);
SELECT MAX(a) AS `Expect 33` FROM t1;
Expect 33
33
INSERT INTO t3 VALUES(0), (0);
SELECT MAX(a) AS `Expect 4098` FROM t3;
Expect 4098
4098
INSERT INTO t5 VALUES(0), (0);
SELECT MAX(a) AS `Expect 1000007` FROM t5;
Expect 1000007
1000007
INSERT INTO t7 VALUES(0), (0);
SELECT MAX(a) AS `Expect 100000010` FROM t7;
Expect 100000010
100000010
INSERT INTO t9 VALUES(0), (0);
SELECT MAX(a) AS `Expect 100000000008` FROM t9;
Expect 100000000008
100000000008
# Scenario 3: Insert some bigger counters, the next counter should start
# from there
INSERT INTO t1 VALUES(40), (0);
INSERT INTO t1 VALUES(42), (0);
SELECT a AS `Expect 43, 42` FROM t1 ORDER BY a DESC LIMIT 4;
Expect 43, 42
43
42
41
40
INSERT INTO t3 VALUES(5000), (0);
INSERT INTO t3 VALUES(5010), (0);
SELECT a AS `Expect 5011, 5010` FROM t3 ORDER BY a DESC LIMIT 4;
Expect 5011, 5010
5011
5010
5001
5000
INSERT INTO t5 VALUES(1000010), (0);
INSERT INTO t5 VALUES(1000020), (0);
SELECT a AS `Expect 1000021, 1000020` FROM t5 ORDER BY a DESC LIMIT 4;
Expect 1000021, 1000020
1000021
1000020
1000011
1000010
INSERT INTO t7 VALUES(100000020), (0);
INSERT INTO t7 VALUES(100000030), (0);
SELECT a AS `Expect 100000031, 100000030` FROM t7 ORDER BY a DESC LIMIT 4;
Expect 100000031, 100000030
100000031
100000030
100000021
100000020
INSERT INTO t9 VALUES(100000000010), (0);
INSERT INTO t9 VALUES(100000000020), (0);
SELECT a AS `Expect 100000000021, 100000000020` FROM t9 ORDER BY a DESC LIMIT 4;
Expect 100000000021, 100000000020
100000000021
100000000020
100000000011
100000000010
# Scenario 4: Update some values, to test the counters should be updated
# to the bigger value, but not smaller value.
INSERT INTO t1 VALUES(50), (55);
UPDATE t1 SET a = 105 WHERE a = 5;
UPDATE t1 SET a = 100 WHERE a = 55;
# This should insert 102, 106, 107, and make next counter 109.
INSERT INTO t1 VALUES(102), (0), (0);
SELECT a AS `Expect 107, 106` FROM t1 ORDER BY a DESC LIMIT 2;
Expect 107, 106
107
106
DELETE FROM t1 WHERE a > 105;
INSERT INTO t1 VALUES(0);
SELECT MAX(a) AS `Expect 109` FROM t1;
Expect 109
109
# Test the same things on t3, t5, t7, t9, to test if DDTableBuffer would
# be updated accordingly
INSERT INTO t3 VALUES(60), (65);
UPDATE t3 SET a = 6005 WHERE a = 5;
UPDATE t3 SET a = 6000 WHERE a = 60;
# This should insert 6002, 6006, 6007, and make next counter 6009.
INSERT INTO t3 VALUES(6002), (0), (0);
SELECT a AS `Expect 6007, 6006` FROM t3 ORDER BY a DESC LIMIT 2;
Expect 6007, 6006
6007
6006
DELETE FROM t3 WHERE a > 6005;
INSERT INTO t3 VALUES(0);
SELECT MAX(a) AS `Expect 6009` FROM t3;
Expect 6009
6009
INSERT INTO t5 VALUES(100), (200);
UPDATE t5 SET a = 1000105 WHERE a = 5;
UPDATE t5 SET a = 1000100 WHERE a = 100;
# This should insert 1000102, 1000106, 1000107, and make next counter
# 1000109.
INSERT INTO t5 VALUES(1000102), (0), (0);
SELECT a AS `Expect 1000107, 1000106` FROM t5 ORDER BY a DESC LIMIT 2;
Expect 1000107, 1000106
1000107
1000106
DELETE FROM t5 WHERE a > 1000105;
INSERT INTO t5 VALUES(0);
SELECT MAX(a) AS `Expect 1000109` FROM t5;
Expect 1000109
1000109
INSERT INTO t7 VALUES(100), (200);
UPDATE t7 SET a = 100000105 WHERE a = 5;
UPDATE t7 SET a = 100000100 WHERE a = 100;
# This should insert 100000102, 1100000106, 100000107, and make next
# counter 100000109.
INSERT INTO t7 VALUES(100000102), (0), (0);
SELECT a AS `Expect 100000107, 100000106` FROM t7 ORDER BY a DESC LIMIT 2;
Expect 100000107, 100000106
100000107
100000106
DELETE FROM t7 WHERE a > 100000105;
INSERT INTO t7 VALUES(0);
SELECT MAX(a) AS `Expect 100000109` FROM t7;
Expect 100000109
100000109
INSERT INTO t9 VALUES(100), (200);
UPDATE t9 SET a = 100000000105 WHERE a = 5;
UPDATE t9 SET a = 100000000100 WHERE a = 100;
# This should insert 100000000102, 100000000106, 100000000107, and make
# next counter 100000000109.
INSERT INTO t9 VALUES(100000000102), (0), (0);
SELECT a AS `Expect 100000000107, 100000000106` FROM t9 ORDER BY a DESC LIMIT 2;
Expect 100000000107, 100000000106
100000000107
100000000106
DELETE FROM t9 WHERE a > 100000000105;
INSERT INTO t9 VALUES(0);
SELECT MAX(a) AS `Expect 100000000109` FROM t9;
Expect 100000000109
100000000109
# restart
INSERT INTO t1 VALUES(0), (0);
SELECT a AS `Expect 110, 111` FROM t1 ORDER BY a DESC LIMIT 2;
Expect 110, 111
111
110
INSERT INTO t3 VALUES(0), (0);
SELECT a AS `Expect 6010, 6011` FROM t3 ORDER BY a DESC LIMIT 2;
Expect 6010, 6011
6011
6010
INSERT INTO t5 VALUES(0), (0);
SELECT a AS `Expect 1100111, 1100110` FROM t5 ORDER BY a DESC LIMIT 2;
Expect 1100111, 1100110
1000111
1000110
INSERT INTO t7 VALUES(0), (0);
SELECT a AS `Expect 100000111, 100000110` FROM t7 ORDER BY a DESC LIMIT 2;
Expect 100000111, 100000110
100000111
100000110
INSERT INTO t9 VALUES(0), (0);
SELECT a AS `Expect 100000000111, 100000000110` FROM t9 ORDER BY a DESC LIMIT 2;
Expect 100000000111, 100000000110
100000000111
100000000110
# Scenario 5: Test kill the server
INSERT INTO t1 VALUES(125);
DELETE FROM t1 WHERE a = 125;
INSERT INTO t3 VALUES(6100);
DELETE FROM t3 WHERE a = 6100;
INSERT INTO t5 VALUES(1100200);
DELETE FROM t5 WHERE a = 1100200;
INSERT INTO t7 VALUES(100000200);
DELETE FROM t7 WHERE a = 100000200;
# Ensure that all changes before the server is killed are persisted.
set global innodb_flush_log_at_trx_commit=1;
INSERT INTO t9 VALUES(100000000200);
DELETE FROM t9 WHERE a = 100000000200;
# restart
INSERT INTO t1 VALUES(0);
SELECT a AS `Expect 126` FROM t1 ORDER BY a DESC LIMIT 1;
Expect 126
126
INSERT INTO t3 VALUES(0);
SELECT a AS `Expect 6101` FROM t3 ORDER BY a DESC LIMIT 1;
Expect 6101
6101
INSERT INTO t5 VALUES(0);
SELECT a AS `Expect 1100201` FROM t5 ORDER BY a DESC LIMIT 1;
Expect 1100201
1100201
INSERT INTO t7 VALUES(0);
SELECT a AS `Expect 100000201` FROM t7 ORDER BY a DESC LIMIT 1;
Expect 100000201
100000201
INSERT INTO t9 VALUES(0);
SELECT a AS `Expect 100000000201` FROM t9 ORDER BY a DESC LIMIT 1;
Expect 100000000201
100000000201
# Scenario 6: Test truncate will reset the counters to 0
TRUNCATE TABLE t1;
TRUNCATE TABLE t3;
TRUNCATE TABLE t5;
TRUNCATE TABLE t7;
TRUNCATE TABLE t9;
INSERT INTO t1 VALUES(0), (0);
SELECT * FROM t1;
a
1
2
INSERT INTO t3 VALUES(0), (0);
SELECT * FROM t3;
a
1
2
INSERT INTO t5 VALUES(0), (0);
SELECT * FROM t5;
a
1
2
INSERT INTO t7 VALUES(0), (0);
SELECT * FROM t7;
a
1
2
INSERT INTO t9 VALUES(0), (0);
SELECT * FROM t9;
a
1
2
# Ensure that all changes before the server is killed are persisted.
set global innodb_flush_log_at_trx_commit=1;
TRUNCATE TABLE t1;
TRUNCATE TABLE t3;
TRUNCATE TABLE t5;
TRUNCATE TABLE t7;
TRUNCATE TABLE t9;
# Scenario 7: Test explicit rename table won't change the counter
RENAME TABLE t9 to t19;
INSERT INTO t19 VALUES(0), (0);
SELECT * FROM t19;
a
1
2
# restart
INSERT INTO t1 VALUES(0), (0);
SELECT * FROM t1;
a
1
2
INSERT INTO t3 VALUES(0), (0);
SELECT * FROM t3;
a
1
2
INSERT INTO t5 VALUES(0), (0);
SELECT * FROM t5;
a
1
2
INSERT INTO t7 VALUES(0), (0);
SELECT * FROM t7;
a
1
2
INSERT INTO t19 VALUES(0), (0);
SELECT * FROM t19;
a
1
2
3
4
DELETE FROM t19 WHERE a = 4;
RENAME TABLE t19 to t9;
INSERT INTO t9 VALUES(0), (0);
SELECT * FROM t9;
a
1
2
3
5
6
TRUNCATE TABLE t9;
INSERT INTO t9 VALUES(0), (0);
SELECT * FROM t9;
a
1
2
# Scenario 8: Test ALTER TABLE operations
INSERT INTO t3 VALUES(0), (0), (100), (200), (1000);
SELECT * FROM t3;
a
1
2
3
4
100
200
1000
DELETE FROM t3 WHERE a > 300;
SELECT MAX(a) AS `Expect 200` FROM t3;
Expect 200
200
# This will not change the counter to 150, but to 201, which is the next
# of current max counter in the table
ALTER TABLE t3 AUTO_INCREMENT = 150;
SHOW CREATE TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=201 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t3 VALUES(0);
SELECT MAX(a) AS `Expect 201` FROM t3;
Expect 201
201
# This will change the counter to 500, which is bigger than any counter
# in the table
ALTER TABLE t3 AUTO_INCREMENT = 500;
SHOW CREATE TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=500 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t3 VALUES(0);
SELECT MAX(a) AS `Expect 500` FROM t3;
Expect 500
500
TRUNCATE TABLE t3;
ALTER TABLE t3 AUTO_INCREMENT = 100;
SHOW CREATE TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=100 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t3 VALUES(0), (0);
SELECT * FROM t3;
a
100
101
INSERT INTO t3 VALUES(150), (180);
UPDATE t3 SET a = 200 WHERE a = 150;
INSERT INTO t3 VALUES(220);
# This still fails to set to 120, but just 221
ALTER TABLE t3 AUTO_INCREMENT = 120;
SHOW CREATE TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=221 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t3 VALUES(0);
SELECT MAX(a) AS `Expect 221` FROM t3;
Expect 221
221
DELETE FROM t3 WHERE a > 120;
ALTER TABLE t3 AUTO_INCREMENT = 120;
SHOW CREATE TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=120 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
# MDEV-6076: Test adding an AUTO_INCREMENT COLUMN
CREATE TABLE mdev6076a (b INT) ENGINE=InnoDB;
INSERT INTO mdev6076a VALUES(2),(1);
CREATE TABLE mdev6076b (b INT) ENGINE=InnoDB;
INSERT INTO mdev6076b VALUES(2),(1);
ALTER TABLE mdev6076a ADD COLUMN a SERIAL FIRST, ALGORITHM=INPLACE, LOCK=NONE;
ERROR 0A000: LOCK=NONE is not supported. Reason: Adding an auto-increment column requires a lock. Try LOCK=SHARED
ALTER TABLE mdev6076a ADD COLUMN a SERIAL FIRST, ALGORITHM=INPLACE;
ALTER TABLE mdev6076b ADD COLUMN a SERIAL FIRST, AUTO_INCREMENT=100,
ALGORITHM=INPLACE;
# MDEV-6076: Test root page split and page_create_empty()
CREATE TABLE mdev6076empty (b SERIAL, pad CHAR(255) NOT NULL DEFAULT '')
ENGINE=InnoDB;
BEGIN;
# Insert records in descending order of AUTO_INCREMENT,
# causing a page split on the very last insert.
# Without the fix in btr_page_empty() this would lose the counter value.
# Without the fix in page_create_empty() the counter value would be lost
# when ROLLBACK deletes the last row.
ROLLBACK;
# restart
INSERT INTO t3 VALUES(0);
SELECT MAX(a) AS `Expect 120` FROM t3;
Expect 120
120
INSERT INTO mdev6076a SET b=NULL;
SELECT * FROM mdev6076a;
a	b
1	2
2	1
3	NULL
INSERT INTO mdev6076b SET b=NULL;
SELECT * FROM mdev6076b;
a	b
100	2
101	1
102	NULL
INSERT INTO mdev6076empty SET b=NULL;
SELECT * FROM mdev6076empty;
b	pad
56	
DROP TABLE mdev6076a, mdev6076b, mdev6076empty;
INSERT INTO t3 VALUES(0), (0), (200), (210);
# Test the different algorithms in ALTER TABLE
CREATE TABLE t_inplace LIKE t3;
INSERT INTO t_inplace SELECT * FROM t3;
SELECT * FROM t_inplace;
a
100
101
120
121
122
200
210
SHOW CREATE TABLE t_inplace;
Table	Create Table
t_inplace	CREATE TABLE `t_inplace` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=211 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
# This will keep the autoinc counter
ALTER TABLE t_inplace AUTO_INCREMENT = 250, ALGORITHM = INPLACE;
# We expect the counter to be 250
SHOW CREATE TABLE t_inplace;
Table	Create Table
t_inplace	CREATE TABLE `t_inplace` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=250 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
# This should keep the autoinc counter as well
ALTER TABLE t_inplace ADD COLUMN b INT, ALGORITHM = INPLACE;
# We expect the counter to be 250
SHOW CREATE TABLE t_inplace;
Table	Create Table
t_inplace	CREATE TABLE `t_inplace` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  `b` int(11) DEFAULT NULL,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=250 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DELETE FROM t_inplace WHERE a > 150;
SELECT * FROM t_inplace;
a	b
100	NULL
101	NULL
120	NULL
121	NULL
122	NULL
# This should reset the autoinc counter to the one specified
# Since it's smaller than current one but bigger than existing
# biggest counter in the table
ALTER TABLE t_inplace AUTO_INCREMENT = 180, ALGORITHM = INPLACE;
# We expect the counter to be 180
SHOW CREATE TABLE t_inplace;
Table	Create Table
t_inplace	CREATE TABLE `t_inplace` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  `b` int(11) DEFAULT NULL,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=180 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
# This should reset the autoinc counter to the next value of
# current max counter in the table, since the specified value
# is smaller than the existing biggest value(50 < 123)
ALTER TABLE t_inplace DROP COLUMN b, AUTO_INCREMENT = 50, ALGORITHM = INPLACE;
# We expect the counter to be 123
SHOW CREATE TABLE t_inplace;
Table	Create Table
t_inplace	CREATE TABLE `t_inplace` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=123 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t_inplace VALUES(0), (0);
SELECT MAX(a) AS `Expect 124` FROM t_inplace;
Expect 124
124
OPTIMIZE TABLE t_inplace;
Table	Op	Msg_type	Msg_text
test.t_inplace	optimize	note	Table does not support optimize, doing recreate + analyze instead
test.t_inplace	optimize	status	OK
DELETE FROM t_inplace WHERE a >= 123;
CREATE TABLE it_inplace(a INT AUTO_INCREMENT, INDEX(a)) AUTO_INCREMENT=125 ENGINE=InnoDB;
CREATE UNIQUE INDEX idx_aa ON it_inplace(a);
# restart
INSERT INTO t_inplace VALUES(0), (0);
INSERT INTO it_inplace VALUES(0), (0);
SELECT MAX(a) AS `Expect 126` FROM t_inplace;
Expect 126
126
SELECT MAX(a) AS `Expect 126` FROM it_inplace;
Expect 126
126
DROP TABLE t_inplace, it_inplace;
CREATE TABLE t_copy LIKE t3;
INSERT INTO t_copy SELECT * FROM t3;
SELECT * FROM t_copy;
a
100
101
120
121
122
200
210
SHOW CREATE TABLE t_copy;
Table	Create Table
t_copy	CREATE TABLE `t_copy` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=211 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
# This will keep the autoinc counter
ALTER TABLE t_copy AUTO_INCREMENT = 250, ALGORITHM = COPY;
# We expect the counter to be 250
SHOW CREATE TABLE t_copy;
Table	Create Table
t_copy	CREATE TABLE `t_copy` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=250 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
# This should keep the autoinc counter as well
ALTER TABLE t_copy ADD COLUMN b INT, ALGORITHM = COPY;
# We expect the counter to be 250
SHOW CREATE TABLE t_copy;
Table	Create Table
t_copy	CREATE TABLE `t_copy` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  `b` int(11) DEFAULT NULL,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=250 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DELETE FROM t_copy WHERE a > 150;
SELECT * FROM t_copy;
a	b
100	NULL
101	NULL
120	NULL
121	NULL
122	NULL
# This should reset the autoinc counter to the one specified
# Since it's smaller than current one but bigger than existing
# biggest counter in the table
ALTER TABLE t_copy AUTO_INCREMENT = 180, ALGORITHM = COPY;
# We expect the counter to be 180
SHOW CREATE TABLE t_copy;
Table	Create Table
t_copy	CREATE TABLE `t_copy` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  `b` int(11) DEFAULT NULL,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=180 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
# This should reset the autoinc counter to the next value of
# current max counter in the table, since the specified value
# is smaller than the existing biggest value(50 < 123)
ALTER TABLE t_copy DROP COLUMN b, AUTO_INCREMENT = 50, ALGORITHM = COPY;
# We expect the counter to be 123
SHOW CREATE TABLE t_copy;
Table	Create Table
t_copy	CREATE TABLE `t_copy` (
  `a` smallint(6) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=123 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t_copy VALUES(0), (0);
SELECT MAX(a) AS `Expect 124` FROM t_copy;
Expect 124
124
OPTIMIZE TABLE t_copy;
Table	Op	Msg_type	Msg_text
test.t_copy	optimize	note	Table does not support optimize, doing recreate + analyze instead
test.t_copy	optimize	status	OK
DELETE FROM t_copy WHERE a >= 123;
CREATE TABLE it_copy(a INT AUTO_INCREMENT, INDEX(a)) AUTO_INCREMENT=125 ENGINE=InnoDB;
CREATE UNIQUE INDEX idx_aa ON it_copy(a);
# restart
INSERT INTO t_copy VALUES(0), (0);
INSERT INTO it_copy VALUES(0), (0);
SELECT MAX(a) AS `Expect 126` FROM t_copy;
Expect 126
126
SELECT MAX(a) AS `Expect 126` FROM it_copy;
Expect 126
126
DROP TABLE t_copy, it_copy;
# Scenario 9: Test the sql_mode = NO_AUTO_VALUE_ON_ZERO
CREATE TABLE t30 (a INT NOT NULL AUTO_INCREMENT PRIMARY KEY, b INT, key(b)) ENGINE = InnoDB;
set SQL_MODE = NO_AUTO_VALUE_ON_ZERO;
INSERT INTO t30 VALUES(NULL, 1), (200, 2), (0, 3);
INSERT INTO t30(b) VALUES(4), (5), (6), (7);
SELECT * FROM t30 ORDER BY b;
a	b
1	1
200	2
0	3
201	4
202	5
203	6
204	7
ALTER TABLE t30 MODIFY b MEDIUMINT;
SELECT * FROM t30 ORDER BY b;
a	b
1	1
200	2
0	3
201	4
202	5
203	6
204	7
# Ensure that all changes before the server is killed are persisted.
set global innodb_flush_log_at_trx_commit=1;
CREATE TABLE t31 (a INT) ENGINE = InnoDB;
INSERT INTO t31 VALUES(1), (2);
ALTER TABLE t31 ADD b INT AUTO_INCREMENT PRIMARY KEY;
INSERT INTO t31 VALUES(3, 0), (4, NULL), (5, NULL);
INSERT INTO t31 VALUES(6, 0);
ERROR 23000: Duplicate entry '0' for key 'PRIMARY'
SELECT * FROM t31;
a	b
3	0
1	1
2	2
4	3
5	4
SET SQL_MODE = 0;
# Scenario 10: Rollback would not rollback the counter
CREATE TABLE t32 (a BIGINT AUTO_INCREMENT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t32 VALUES(0), (0);
# Ensure that all changes before the server is killed are persisted.
set global innodb_flush_log_at_trx_commit=1;
START TRANSACTION;
INSERT INTO t32 VALUES(0), (0);
SELECT MAX(a) AS `Expect 4` FROM t32;
Expect 4
4
DELETE FROM t32 WHERE a >= 2;
ROLLBACK;
# Scenario 11: Test duplicate primary key/secondary key will not stop
# increasing the counter
CREATE TABLE t33 (
a BIGINT NOT NULL PRIMARY KEY,
b BIGINT NOT NULL AUTO_INCREMENT, KEY(b)) ENGINE = InnoDB;
INSERT INTO t33 VALUES(1, NULL);
INSERT INTO t33 VALUES(2, NULL);
INSERT INTO t33 VALUES(2, NULL);
ERROR 23000: Duplicate entry '2' for key 'PRIMARY'
INSERT INTO t33 VALUES(3, NULL);
SELECT MAX(b) AS `Expect 4` FROM t33;
Expect 4
4
TRUNCATE TABLE t33;
INSERT INTO t33 VALUES(1, NULL);
INSERT INTO t33 VALUES(2, NULL);
set global innodb_flush_log_at_trx_commit=1;
START TRANSACTION;
UPDATE t33 SET a = 10 WHERE a = 1;
INSERT INTO t33 VALUES(2, NULL);
ERROR 23000: Duplicate entry '2' for key 'PRIMARY'
COMMIT;
# restart
# This will not insert 0
INSERT INTO t31(a) VALUES(6), (0);
SELECT * FROM t31;
a	b
3	0
1	1
2	2
4	3
5	4
6	5
0	6
DROP TABLE t31;
set SQL_MODE = NO_AUTO_VALUE_ON_ZERO;
DELETE FROM t30 WHERE a = 0;
UPDATE t30 set a = 0 where b = 5;
SELECT * FROM t30 ORDER BY b;
a	b
1	1
200	2
201	4
0	5
203	6
204	7
DELETE FROM t30 WHERE a = 0;
UPDATE t30 SET a = NULL WHERE b = 6;
Warnings:
Warning	1048	Column 'a' cannot be null
UPDATE t30 SET a = 300 WHERE b = 7;
SELECT * FROM t30 ORDER BY b;
a	b
1	1
200	2
201	4
0	6
300	7
SET SQL_MODE = 0;
SELECT MAX(a) AS `Expect 2` FROM t32;
Expect 2
2
INSERT INTO t32 VALUES(0), (0);
SELECT MAX(a) AS `Expect 6` FROM t32;
Expect 6
6
FLUSH TABLES t33 FOR EXPORT;
backup: t33
UNLOCK TABLES;
DROP TABLE t33;
CREATE TABLE t33 (
a BIGINT NOT NULL PRIMARY KEY,
b BIGINT NOT NULL AUTO_INCREMENT, KEY(b)) ENGINE = InnoDB;
ALTER TABLE t33 DISCARD TABLESPACE;
restore: t33 .ibd and .cfg files
ALTER TABLE t33 IMPORT TABLESPACE;
INSERT INTO t33 VALUES(3, NULL);
SELECT MAX(b) AS `Expect 4` FROM t33;
Expect 4
4
SELECT * FROM t33;
a	b
10	1
2	2
3	4
DROP TABLE t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t11u, t12u,
t30, t32, t33;
ALTER DATABASE test CHARACTER SET utf8mb4 COLLATE utf8mb4_uca1400_ai_ci;