drop table if exists t1,t2;
drop database if exists mysqltest;
create table t1 (
col1 int not null auto_increment primary key,
col2 varchar(30) not null,
col3 varchar (20) not null,
col4 varchar(4) not null,
col5 enum('PENDING', 'ACTIVE', 'DISABLED') not null,
col6 int not null, to_be_deleted int);
insert into t1 values (2,4,3,5,"PENDING",1,7);
alter table t1
add column col4_5 varchar(20) not null after col4,
add column col7 varchar(30) not null after col5,
add column col8 datetime not null, drop column to_be_deleted,
change column col2 fourth varchar(30) not null after col3,
modify column col6 int not null first;
select * from t1;
col6	col1	col3	fourth	col4	col4_5	col5	col7	col8
1	2	3	4	5		PENDING		0000-00-00 00:00:00
drop table t1;
create table t1 (bandID MEDIUMINT UNSIGNED NOT NULL PRIMARY KEY, payoutID SMALLINT UNSIGNED NOT NULL);
insert into t1 (bandID,payoutID) VALUES (1,6),(2,6),(3,4),(4,9),(5,10),(6,1),(7,12),(8,12);
alter table t1 add column new_col int, order by payoutid,bandid;
select * from t1;
bandID	payoutID	new_col
6	1	NULL
3	4	NULL
1	6	NULL
2	6	NULL
4	9	NULL
5	10	NULL
7	12	NULL
8	12	NULL
alter table t1 order by bandid,payoutid;
select * from t1;
bandID	payoutID	new_col
1	6	NULL
2	6	NULL
3	4	NULL
4	9	NULL
5	10	NULL
6	1	NULL
7	12	NULL
8	12	NULL
drop table t1;
CREATE TABLE t1 (
GROUP_ID int(10) unsigned DEFAULT '0' NOT NULL,
LANG_ID smallint(5) unsigned DEFAULT '0' NOT NULL,
NAME varchar(80) DEFAULT '' NOT NULL,
PRIMARY KEY (GROUP_ID,LANG_ID),
KEY NAME (NAME));
ALTER TABLE t1 CHANGE NAME NAME CHAR(80) not null;
SHOW FULL COLUMNS FROM t1;
Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
GROUP_ID	int(10) unsigned	NULL	NO	PRI	0		#	
LANG_ID	smallint(5) unsigned	NULL	NO	PRI	0		#	
NAME	char(80)	latin1_swedish_ci	NO	MUL	NULL		#	
DROP TABLE t1;
create table t1 (n int);
insert into t1 values(9),(3),(12),(10);
alter table t1 order by n;
select * from t1;
n
3
9
10
12
drop table t1;
CREATE TABLE t1 (
id int(11) unsigned NOT NULL default '0',
category_id tinyint(4) unsigned NOT NULL default '0',
type_id tinyint(4) unsigned NOT NULL default '0',
body text NOT NULL,
user_id int(11) unsigned NOT NULL default '0',
status enum('new','old') NOT NULL default 'new',
PRIMARY KEY (id)
) ENGINE=MyISAM;
ALTER TABLE t1 ORDER BY t1.id, t1.status, t1.type_id, t1.user_id, t1.body;
DROP TABLE t1;
CREATE TABLE t1 (AnamneseId int(10) unsigned NOT NULL auto_increment,B BLOB,PRIMARY KEY (AnamneseId)) engine=myisam;
insert into t1 values (null,"hello");
LOCK TABLES t1 WRITE;
ALTER TABLE t1 ADD Column new_col int not null;
UNLOCK TABLES;
OPTIMIZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
DROP TABLE t1;
create table t1 (i int unsigned not null auto_increment primary key);
insert into t1 values (null),(null),(null),(null);
alter table t1 drop i,add i int unsigned not null auto_increment, drop primary key, add primary key (i);
select * from t1;
i
1
2
3
4
drop table t1;
create table t1 (name char(15));
insert into t1 (name) values ("current");
create database mysqltest;
create table mysqltest.t1 (name char(15));
insert into mysqltest.t1 (name) values ("mysqltest");
select * from t1;
name
current
select * from mysqltest.t1;
name
mysqltest
alter table t1 rename mysqltest.t1;
ERROR 42S01: Table 't1' already exists
select * from t1;
name
current
select * from mysqltest.t1;
name
mysqltest
drop table t1;
drop database mysqltest;
create table t1 (n1 int not null, n2 int, n3 int, n4 float,
unique(n1),
key (n1, n2, n3, n4),
key (n2, n3, n4, n1),
key (n3, n4, n1, n2),
key (n4, n1, n2, n3) );
alter table t1 disable keys;
show keys from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	n1	1	n1	A	0	NULL	NULL		BTREE		
t1	1	n1_2	1	n1	A	NULL	NULL	NULL		BTREE	disabled	
t1	1	n1_2	2	n2	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n1_2	3	n3	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n1_2	4	n4	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n2	1	n2	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n2	2	n3	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n2	3	n4	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n2	4	n1	A	NULL	NULL	NULL		BTREE	disabled	
t1	1	n3	1	n3	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n3	2	n4	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n3	3	n1	A	NULL	NULL	NULL		BTREE	disabled	
t1	1	n3	4	n2	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n4	1	n4	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n4	2	n1	A	NULL	NULL	NULL		BTREE	disabled	
t1	1	n4	3	n2	A	NULL	NULL	NULL	YES	BTREE	disabled	
t1	1	n4	4	n3	A	NULL	NULL	NULL	YES	BTREE	disabled	
alter table t1 enable keys;
show keys from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	n1	1	n1	A	10	NULL	NULL		BTREE		
t1	1	n1_2	1	n1	A	10	NULL	NULL		BTREE		
t1	1	n1_2	2	n2	A	10	NULL	NULL	YES	BTREE		
t1	1	n1_2	3	n3	A	10	NULL	NULL	YES	BTREE		
t1	1	n1_2	4	n4	A	10	NULL	NULL	YES	BTREE		
t1	1	n2	1	n2	A	10	NULL	NULL	YES	BTREE		
t1	1	n2	2	n3	A	10	NULL	NULL	YES	BTREE		
t1	1	n2	3	n4	A	10	NULL	NULL	YES	BTREE		
t1	1	n2	4	n1	A	10	NULL	NULL		BTREE		
t1	1	n3	1	n3	A	10	NULL	NULL	YES	BTREE		
t1	1	n3	2	n4	A	10	NULL	NULL	YES	BTREE		
t1	1	n3	3	n1	A	10	NULL	NULL		BTREE		
t1	1	n3	4	n2	A	10	NULL	NULL	YES	BTREE		
t1	1	n4	1	n4	A	10	NULL	NULL	YES	BTREE		
t1	1	n4	2	n1	A	10	NULL	NULL		BTREE		
t1	1	n4	3	n2	A	10	NULL	NULL	YES	BTREE		
t1	1	n4	4	n3	A	10	NULL	NULL	YES	BTREE		
drop table t1;
create table t1 (i int unsigned not null auto_increment primary key);
alter table t1 rename t2;
alter table t2 rename t1, add c char(10) comment "no comment";
show columns from t1;
Field	Type	Null	Key	Default	Extra
i	int(10) unsigned	NO	PRI	NULL	auto_increment
c	char(10)	YES		NULL	
drop table t1;
create table t1 (a int, b int);
alter table t1 add unique (a,b), add key (b);
show keys from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	3	NULL	NULL	YES	BTREE		
t1	0	a	2	b	A	300	NULL	NULL	YES	BTREE		
t1	1	b	1	b	A	100	NULL	NULL	YES	BTREE		
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Table is already up to date
show keys from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	3	NULL	NULL	YES	BTREE		
t1	0	a	2	b	A	300	NULL	NULL	YES	BTREE		
t1	1	b	1	b	A	100	NULL	NULL	YES	BTREE		
drop table t1;
CREATE TABLE t1 (i int(10), index(i) ) ENGINE=MyISAM;
ALTER TABLE t1 DISABLE KEYS;
INSERT DELAYED INTO t1 VALUES(1),(2),(3);
ALTER TABLE t1 ENABLE KEYS;
drop table t1;
CREATE TABLE t1 (
Host varchar(16) binary NOT NULL default '',
User varchar(16) binary NOT NULL default '',
PRIMARY KEY  (Host,User)
) ENGINE=MyISAM;
ALTER TABLE t1 DISABLE KEYS;
LOCK TABLES t1 WRITE;
INSERT INTO t1 VALUES ('localhost','root'),('localhost',''),('games','monty');
SHOW INDEX FROM t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	PRIMARY	1	Host	A	NULL	NULL	NULL		BTREE		
t1	0	PRIMARY	2	User	A	0	NULL	NULL		BTREE		
ALTER TABLE t1 ENABLE KEYS;
UNLOCK TABLES;
CHECK TABLES t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
DROP TABLE t1;
CREATE TABLE t1 (
Host varchar(16) binary NOT NULL default '',
User varchar(16) binary NOT NULL default '',
PRIMARY KEY  (Host,User),
KEY  (Host)
) ENGINE=MyISAM;
ALTER TABLE t1 DISABLE KEYS;
SHOW INDEX FROM t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	PRIMARY	1	Host	A	NULL	NULL	NULL		BTREE		
t1	0	PRIMARY	2	User	A	0	NULL	NULL		BTREE		
t1	1	Host	1	Host	A	NULL	NULL	NULL		BTREE	disabled	
LOCK TABLES t1 WRITE;
INSERT INTO t1 VALUES ('localhost','root'),('localhost','');
SHOW INDEX FROM t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	PRIMARY	1	Host	A	NULL	NULL	NULL		BTREE		
t1	0	PRIMARY	2	User	A	0	NULL	NULL		BTREE		
t1	1	Host	1	Host	A	NULL	NULL	NULL		BTREE	disabled	
ALTER TABLE t1 ENABLE KEYS;
SHOW INDEX FROM t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	PRIMARY	1	Host	A	NULL	NULL	NULL		BTREE		
t1	0	PRIMARY	2	User	A	2	NULL	NULL		BTREE		
t1	1	Host	1	Host	A	1	NULL	NULL		BTREE		
UNLOCK TABLES;
CHECK TABLES t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
LOCK TABLES t1 WRITE;
ALTER TABLE t1 RENAME t2;
UNLOCK TABLES;
select * from t2;
Host	User
localhost	
localhost	root
DROP TABLE t2;
CREATE TABLE t1 (
Host varchar(16) binary NOT NULL default '',
User varchar(16) binary NOT NULL default '',
PRIMARY KEY  (Host,User),
KEY  (Host)
) ENGINE=MyISAM;
LOCK TABLES t1 WRITE;
ALTER TABLE t1 DISABLE KEYS;
SHOW INDEX FROM t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	PRIMARY	1	Host	A	NULL	NULL	NULL		BTREE		
t1	0	PRIMARY	2	User	A	0	NULL	NULL		BTREE		
t1	1	Host	1	Host	A	NULL	NULL	NULL		BTREE	disabled	
DROP TABLE t1;
create table t1 (a int);
alter table t1 rename to ``;
ERROR 42000: Incorrect table name ''
rename table t1 to ``;
ERROR 42000: Incorrect table name ''
drop table t1;
drop table if exists t1, t2;
Warnings:
Note	1051	Unknown table 'test.t1'
Note	1051	Unknown table 'test.t2'
create table t1 ( a varchar(10) not null primary key ) engine=myisam;
create table t2 ( a varchar(10) not null primary key ) engine=merge union=(t1);
flush tables;
alter table t1 modify a varchar(10);
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `a` varchar(10) NOT NULL,
  PRIMARY KEY (`a`)
) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 UNION=(`t1`)
flush tables;
alter table t1 modify a varchar(10) not null;
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `a` varchar(10) NOT NULL,
  PRIMARY KEY (`a`)
) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 UNION=(`t1`)
drop table if exists t1, t2;
create table t1 (a int, b int, c int, d int, e int, f int, g int, h int,i int, primary key (a,b,c,d,e,f,g,i,h)) engine=MyISAM;
insert into t1 (a) values(1);
show table status like 't1';
Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
t1	MyISAM	10	Fixed	1	37	X	X	X	X	X	X	X	X	latin1_swedish_ci	NULL		
alter table t1 modify a int;
show table status like 't1';
Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
t1	MyISAM	10	Fixed	1	37	X	X	X	X	X	X	X	X	latin1_swedish_ci	NULL		
drop table t1;
create table t1 (a int not null, b int not null, c int not null, d int not null, e int not null, f int not null, g int not null, h int not null,i int not null, primary key (a,b,c,d,e,f,g,i,h)) engine=MyISAM;
insert into t1 (a) values(1);
Warnings:
Warning	1364	Field 'b' doesn't have a default value
Warning	1364	Field 'c' doesn't have a default value
Warning	1364	Field 'd' doesn't have a default value
Warning	1364	Field 'e' doesn't have a default value
Warning	1364	Field 'f' doesn't have a default value
Warning	1364	Field 'g' doesn't have a default value
Warning	1364	Field 'h' doesn't have a default value
Warning	1364	Field 'i' doesn't have a default value
show table status like 't1';
Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
t1	MyISAM	10	Fixed	1	37	X	X	X	X	X	X	X	X	latin1_swedish_ci	NULL		
drop table t1;
set names koi8r;
create table t1 (a char(10) character set koi8r);
insert into t1 values ('ΤΕΣΤ');
select a,hex(a) from t1;
a	hex(a)
ΤΕΣΤ	D4C5D3D4
alter table t1 change a a char(10) character set cp1251;
select a,hex(a) from t1;
a	hex(a)
ΤΕΣΤ	F2E5F1F2
alter table t1 change a a binary(4);
select a,hex(a) from t1;
a	hex(a)
ςερς	F2E5F1F2
alter table t1 change a a char(10) character set cp1251;
select a,hex(a) from t1;
a	hex(a)
ΤΕΣΤ	F2E5F1F2
alter table t1 change a a char(10) character set koi8r;
select a,hex(a) from t1;
a	hex(a)
ΤΕΣΤ	D4C5D3D4
alter table t1 change a a varchar(10) character set cp1251;
select a,hex(a) from t1;
a	hex(a)
ΤΕΣΤ	F2E5F1F2
alter table t1 change a a char(10) character set koi8r;
select a,hex(a) from t1;
a	hex(a)
ΤΕΣΤ	D4C5D3D4
alter table t1 change a a text character set cp1251;
select a,hex(a) from t1;
a	hex(a)
ΤΕΣΤ	F2E5F1F2
alter table t1 change a a char(10) character set koi8r;
select a,hex(a) from t1;
a	hex(a)
ΤΕΣΤ	D4C5D3D4
delete from t1;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` char(10) CHARACTER SET koi8r DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
alter table t1 DEFAULT CHARACTER SET latin1;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` char(10) CHARACTER SET koi8r DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
alter table t1 CONVERT TO CHARACTER SET latin1;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` char(10) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
alter table t1 DEFAULT CHARACTER SET cp1251;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` char(10) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=cp1251
drop table t1;
create table t1 (myblob longblob,mytext longtext) 
default charset latin1 collate latin1_general_cs;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `myblob` longblob,
  `mytext` longtext COLLATE latin1_general_cs
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_cs
alter table t1 character set latin2;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `myblob` longblob,
  `mytext` longtext CHARACTER SET latin1 COLLATE latin1_general_cs
) ENGINE=MyISAM DEFAULT CHARSET=latin2
drop table t1;
CREATE TABLE t1 (a int PRIMARY KEY, b INT UNIQUE);
ALTER TABLE t1 DROP PRIMARY KEY;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` int(11) DEFAULT NULL,
  UNIQUE KEY `b` (`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP PRIMARY KEY;
ERROR 42000: Can't DROP 'PRIMARY'; check that column/key exists
DROP TABLE t1;
create table t1 (a int, b int, key(a));
insert into t1 values (1,1), (2,2);
alter table t1 drop key no_such_key;
ERROR 42000: Can't DROP 'no_such_key'; check that column/key exists
alter table t1 drop key a;
drop table t1;
CREATE TABLE T12207(a int) ENGINE=MYISAM;
ALTER TABLE T12207 DISCARD TABLESPACE;
ERROR HY000: Storage engine MyISAM of the table `test`.`T12207` doesn't have this option
DROP TABLE T12207;
create table t1 (a text) character set koi8r;
insert into t1 values (_koi8r'ΤΕΣΤ');
select hex(a) from t1;
hex(a)
D4C5D3D4
alter table t1 convert to character set cp1251;
select hex(a) from t1;
hex(a)
F2E5F1F2
drop table t1;
create table t1 ( a timestamp );
alter table t1 add unique ( a(1) );
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
drop table t1;
drop table if exists t1;
create table t1 (a int, key(a));
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
"this used not to disable the index"
alter table t1 modify a int, disable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled	
alter table t1 enable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
alter table t1 modify a bigint, disable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled	
alter table t1 enable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
alter table t1 add b char(10), disable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled	
alter table t1 add c decimal(10,2), enable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
"this however did"
alter table t1 disable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled	
desc t1;
Field	Type	Null	Key	Default	Extra
a	bigint(20)	YES	MUL	NULL	
b	char(10)	YES		NULL	
c	decimal(10,2)	YES		NULL	
alter table t1 add d decimal(15,5);
"The key should still be disabled"
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled	
drop table t1;
"Now will test with one unique index"
create table t1(a int, b char(10), unique(a));
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
alter table t1 disable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
alter table t1 enable keys;
"If no copy on noop change, this won't touch the data file"
"Unique index, no change"
alter table t1 modify a int, disable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
"Change the type implying data copy"
"Unique index, no change"
alter table t1 modify a bigint, disable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
alter table t1 modify a bigint;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
alter table t1 modify a int;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
drop table t1;
"Now will test with one unique and one non-unique index"
create table t1(a int, b char(10), unique(a), key(b));
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE		
alter table t1 disable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled	
alter table t1 enable keys;
"If no copy on noop change, this won't touch the data file"
"The non-unique index will be disabled"
alter table t1 modify a int, disable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled	
alter table t1 enable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE		
"Change the type implying data copy"
"The non-unique index will be disabled"
alter table t1 modify a bigint, disable keys;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled	
"Change again the type, but leave the indexes as_is"
alter table t1 modify a int;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled	
"Try the same. When data is no copied on similar tables, this is noop"
alter table t1 modify a int;
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled	
drop table t1;
create database mysqltest;
create table t1 (c1 int);
alter table t1 rename mysqltest.t1;
drop table t1;
ERROR 42S02: Unknown table 'test.t1'
alter table mysqltest.t1 rename t1;
drop table t1;
create table t1 (c1 int);
use mysqltest;
drop database mysqltest;
alter table test.t1 rename t1;
ERROR 3D000: No database selected
alter table test.t1 rename test.t1;
use test;
drop table t1;
CREATE TABLE t1(a INT) ROW_FORMAT=FIXED;
CREATE INDEX i1 ON t1(a);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  KEY `i1` (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 ROW_FORMAT=FIXED
DROP INDEX i1 ON t1;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 ROW_FORMAT=FIXED
DROP TABLE t1;
DROP TABLE IF EXISTS bug24219;
DROP TABLE IF EXISTS bug24219_2;
CREATE TABLE bug24219 (a INT, INDEX(a));
SHOW INDEX FROM bug24219;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
bug24219	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE		
ALTER TABLE bug24219 RENAME TO bug24219_2, DISABLE KEYS;
SHOW INDEX FROM bug24219_2;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
bug24219_2	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled	
DROP TABLE bug24219_2;
drop table if exists table_24562;
create table table_24562(
section int,
subsection int,
title varchar(50));
insert into table_24562 values
(1, 0, "Introduction"),
(1, 1, "Authors"),
(1, 2, "Acknowledgements"),
(2, 0, "Basics"),
(2, 1, "Syntax"),
(2, 2, "Client"),
(2, 3, "Server"),
(3, 0, "Intermediate"),
(3, 1, "Complex queries"),
(3, 2, "Stored Procedures"),
(3, 3, "Stored Functions"),
(4, 0, "Advanced"),
(4, 1, "Replication"),
(4, 2, "Load balancing"),
(4, 3, "High availability"),
(5, 0, "Conclusion");
select * from table_24562;
section	subsection	title
1	0	Introduction
1	1	Authors
1	2	Acknowledgements
2	0	Basics
2	1	Syntax
2	2	Client
2	3	Server
3	0	Intermediate
3	1	Complex queries
3	2	Stored Procedures
3	3	Stored Functions
4	0	Advanced
4	1	Replication
4	2	Load balancing
4	3	High availability
5	0	Conclusion
alter table table_24562 add column reviewer varchar(20),
order by title;
select * from table_24562;
section	subsection	title	reviewer
1	2	Acknowledgements	NULL
4	0	Advanced	NULL
1	1	Authors	NULL
2	0	Basics	NULL
2	2	Client	NULL
3	1	Complex queries	NULL
5	0	Conclusion	NULL
4	3	High availability	NULL
3	0	Intermediate	NULL
1	0	Introduction	NULL
4	2	Load balancing	NULL
4	1	Replication	NULL
2	3	Server	NULL
3	3	Stored Functions	NULL
3	2	Stored Procedures	NULL
2	1	Syntax	NULL
update table_24562 set reviewer="Me" where section=2;
update table_24562 set reviewer="You" where section=3;
alter table table_24562
order by section ASC, subsection DESC;
select * from table_24562;
section	subsection	title	reviewer
1	2	Acknowledgements	NULL
1	1	Authors	NULL
1	0	Introduction	NULL
2	3	Server	Me
2	2	Client	Me
2	1	Syntax	Me
2	0	Basics	Me
3	3	Stored Functions	You
3	2	Stored Procedures	You
3	1	Complex queries	You
3	0	Intermediate	You
4	3	High availability	NULL
4	2	Load balancing	NULL
4	1	Replication	NULL
4	0	Advanced	NULL
5	0	Conclusion	NULL
alter table table_24562
order by table_24562.subsection ASC, table_24562.section DESC;
select * from table_24562;
section	subsection	title	reviewer
5	0	Conclusion	NULL
4	0	Advanced	NULL
3	0	Intermediate	You
2	0	Basics	Me
1	0	Introduction	NULL
4	1	Replication	NULL
3	1	Complex queries	You
2	1	Syntax	Me
1	1	Authors	NULL
4	2	Load balancing	NULL
3	2	Stored Procedures	You
2	2	Client	Me
1	2	Acknowledgements	NULL
4	3	High availability	NULL
3	3	Stored Functions	You
2	3	Server	Me
alter table table_24562 order by 12;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '12' at line 1
alter table table_24562 order by (section + 12);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '(section + 12)' at line 1
alter table table_24562 order by length(title);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '(title)' at line 1
alter table table_24562 order by (select 12 from dual);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '(select 12 from dual)' at line 1
alter table table_24562 order by no_such_col;
ERROR 42S22: Unknown column 'no_such_col' in 'order clause'
drop table table_24562;
create table t1 (mycol int(10) not null);
alter table t1 alter column mycol set default 0;
desc t1;
Field	Type	Null	Key	Default	Extra
mycol	int(10)	NO		0	
drop table t1;
create table t1(id int(8) primary key auto_increment) engine=heap;
insert into t1 values (null);
insert into t1 values (null);
select * from t1;
id
1
2
alter table t1 auto_increment = 50;
alter table t1 engine = myisam;
insert into t1 values (null);
select * from t1;
id
1
2
50
alter table t1 engine = heap;
insert into t1 values (null);
select * from t1;
id
1
2
50
51
drop table t1;
set @orig_sql_mode = @@sql_mode;
set sql_mode="no_zero_date";
create table t1(f1 int);
alter table t1 add column f2 datetime not null, add column f21 date not null;
insert into t1 values(1,'2000-01-01','2000-01-01');
alter table t1 add column f3 datetime not null;
ERROR 22007: Incorrect datetime value: '0000-00-00 00:00:00' for column 'f3' at row 1
alter table t1 add column f3 date not null;
ERROR 22007: Incorrect date value: '0000-00-00' for column 'f3' at row 1
alter table t1 add column f4 datetime not null default '2002-02-02',
add column f41 date not null;
ERROR 22007: Incorrect date value: '0000-00-00' for column 'f41' at row 1
alter table t1 add column f4 datetime not null default '2002-02-02',
add column f41 date not null default '2002-02-02';
select * from t1;
f1	f2	f21	f4	f41
1	2000-01-01 00:00:00	2000-01-01	2002-02-02 00:00:00	2002-02-02
drop table t1;
set sql_mode= @orig_sql_mode;
create table t1 (v varchar(32));
insert into t1 values ('def'),('abc'),('hij'),('3r4f');
select * from t1;
v
def
abc
hij
3r4f
alter table t1 change v v2 varchar(32);
select * from t1;
v2
def
abc
hij
3r4f
alter table t1 change v2 v varchar(64);
select * from t1;
v
def
abc
hij
3r4f
update t1 set v = 'lmn' where v = 'hij';
select * from t1;
v
def
abc
lmn
3r4f
alter table t1 add i int auto_increment not null primary key first;
select * from t1;
i	v
1	def
2	abc
3	lmn
4	3r4f
update t1 set i=5 where i=3;
select * from t1;
i	v
1	def
2	abc
5	lmn
4	3r4f
alter table t1 change i i bigint;
select * from t1;
i	v
1	def
2	abc
5	lmn
4	3r4f
alter table t1 add unique key (i, v);
select * from t1 where i between 2 and 4 and v in ('def','3r4f','lmn');
i	v
4	3r4f
drop table t1;
create table t1 (t varchar(255) default null, key t (t(80)))
engine=myisam default charset=latin1;
alter table t1 change t t text;
drop table t1;
CREATE TABLE t1 (a varchar(500));
ALTER TABLE t1 ADD b GEOMETRY NOT NULL, ADD SPATIAL INDEX(b);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` varchar(500) DEFAULT NULL,
  `b` geometry NOT NULL,
  SPATIAL KEY `b` (`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
ALTER TABLE t1 ADD KEY(b(50));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` varchar(500) DEFAULT NULL,
  `b` geometry NOT NULL,
  SPATIAL KEY `b` (`b`),
  KEY `b_2` (`b`(50))
) ENGINE=MyISAM DEFAULT CHARSET=latin1
ALTER TABLE t1 ADD c POINT;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` varchar(500) DEFAULT NULL,
  `b` geometry NOT NULL,
  `c` point DEFAULT NULL,
  SPATIAL KEY `b` (`b`),
  KEY `b_2` (`b`(50))
) ENGINE=MyISAM DEFAULT CHARSET=latin1
CREATE TABLE t2 (a INT, KEY (a(20)));
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
ALTER TABLE t1 ADD d INT;
ALTER TABLE t1 ADD KEY (d(20));
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
ALTER TABLE t1 ADD e GEOMETRY NOT NULL, ADD SPATIAL KEY (e(30));
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
DROP TABLE t1;
CREATE TABLE t1 (s CHAR(8) BINARY);
INSERT INTO t1 VALUES ('test');
SELECT LENGTH(s) FROM t1;
LENGTH(s)
4
ALTER TABLE t1 MODIFY s CHAR(10) BINARY;
SELECT LENGTH(s) FROM t1;
LENGTH(s)
4
DROP TABLE t1;
CREATE TABLE t1 (s BINARY(8));
INSERT INTO t1 VALUES ('test');
SELECT LENGTH(s) FROM t1;
LENGTH(s)
8
SELECT HEX(s) FROM t1;
HEX(s)
7465737400000000
ALTER TABLE t1 MODIFY s BINARY(10);
SELECT HEX(s) FROM t1;
HEX(s)
74657374000000000000
SELECT LENGTH(s) FROM t1;
LENGTH(s)
10
DROP TABLE t1;
CREATE TABLE t1 (v VARCHAR(3), b INT);
INSERT INTO t1 VALUES ('abc', 5);
SELECT * FROM t1;
v	b
abc	5
ALTER TABLE t1 MODIFY COLUMN v VARCHAR(4);
SELECT * FROM t1;
v	b
abc	5
DROP TABLE t1;
create table t1 (a tinytext character set latin1);
alter table t1 convert to character set utf8;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` text
) ENGINE=MyISAM DEFAULT CHARSET=utf8
drop table t1;
create table t1 (a mediumtext character set latin1);
alter table t1 convert to character set utf8;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` longtext
) ENGINE=MyISAM DEFAULT CHARSET=utf8
drop table t1;
End of 5.0 tests
drop table if exists t1, t2, t3;
create table t1 (i int);
create table t3 (j int);
insert into t1 values ();
insert into t3 values ();
lock table t1 write, t3 read;
alter table t1 modify i int default 1;
insert into t1 values ();
select * from t1;
i
NULL
1
alter table t1 change i c char(10) default "Two";
insert into t1 values ();
select * from t1;
c
NULL
1
Two
alter table t1 modify c char(10) default "Three", rename to t2;
select * from t1;
ERROR HY000: Table 't1' was not locked with LOCK TABLES
select * from t2;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
select * from t3;
j
NULL
unlock tables;
insert into t2 values ();
select * from t2;
c
NULL
1
Two
Three
lock table t2 write, t3 read;
alter table t2 change c vc varchar(100) default "Four", rename to t1;
select * from t1;
ERROR HY000: Table 't1' was not locked with LOCK TABLES
select * from t2;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
select * from t3;
j
NULL
unlock tables;
insert into t1 values ();
select * from t1;
vc
NULL
1
Two
Three
Four
drop tables t1, t3;
DROP TABLE IF EXISTS `t+1`, `t+2`;
CREATE TABLE `t+1` (c1 INT);
ALTER TABLE  `t+1` RENAME `t+2`;
CREATE TABLE `t+1` (c1 INT);
ALTER TABLE  `t+1` RENAME `t+2`;
ERROR 42S01: Table 't+2' already exists
DROP TABLE   `t+1`, `t+2`;
CREATE TEMPORARY TABLE `tt+1` (c1 INT);
ALTER TABLE  `tt+1` RENAME `tt+2`;
CREATE TEMPORARY TABLE `tt+1` (c1 INT);
ALTER TABLE  `tt+1` RENAME `tt+2`;
ERROR 42S01: Table 'tt+2' already exists
SHOW CREATE TABLE `tt+1`;
Table	Create Table
tt+1	CREATE TEMPORARY TABLE `tt+1` (
  `c1` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SHOW CREATE TABLE `tt+2`;
Table	Create Table
tt+2	CREATE TEMPORARY TABLE `tt+2` (
  `c1` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE   `tt+1`, `tt+2`;
CREATE TABLE `#sql1` (c1 INT);
CREATE TABLE `@0023sql2` (c1 INT);
SHOW TABLES;
Tables_in_test
#sql1
@0023sql2
RENAME TABLE `#sql1`     TO `@0023sql1`;
RENAME TABLE `@0023sql2` TO `#sql2`;
SHOW TABLES;
Tables_in_test
#sql2
@0023sql1
ALTER TABLE `@0023sql1`  RENAME `#sql-1`;
ALTER TABLE `#sql2`      RENAME `@0023sql-2`;
SHOW TABLES;
Tables_in_test
#sql-1
@0023sql-2
INSERT INTO `#sql-1`     VALUES (1);
INSERT INTO `@0023sql-2` VALUES (2);
DROP TABLE `#sql-1`, `@0023sql-2`;
CREATE TEMPORARY TABLE `#sql1` (c1 INT);
CREATE TEMPORARY TABLE `@0023sql2` (c1 INT);
SHOW TABLES;
Tables_in_test
ALTER TABLE `#sql1`      RENAME `@0023sql1`;
ALTER TABLE `@0023sql2`  RENAME `#sql2`;
SHOW TABLES;
Tables_in_test
INSERT INTO `#sql2`      VALUES (1);
INSERT INTO `@0023sql1`  VALUES (2);
SHOW CREATE TABLE `#sql2`;
Table	Create Table
#sql2	CREATE TEMPORARY TABLE `#sql2` (
  `c1` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SHOW CREATE TABLE `@0023sql1`;
Table	Create Table
@0023sql1	CREATE TEMPORARY TABLE `@0023sql1` (
  `c1` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE `#sql2`, `@0023sql1`;
DROP TABLE IF EXISTS t1;
DROP TABLE IF EXISTS t2;
CREATE TABLE t1 (
int_field INTEGER UNSIGNED NOT NULL,
char_field CHAR(10),
INDEX(`int_field`)
);
DESCRIBE t1;
Field	Type	Null	Key	Default	Extra
int_field	int(10) unsigned	NO	MUL	NULL	
char_field	char(10)	YES		NULL	
SHOW INDEXES FROM t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
t1	1	int_field	1	int_field	A	NULL	NULL	NULL		BTREE		
INSERT INTO t1 VALUES (1, "edno"), (1, "edno"), (2, "dve"), (3, "tri"), (5, "pet");
"Non-copy data change - new frm, but old data and index files"
ALTER TABLE t1
CHANGE int_field unsigned_int_field INTEGER UNSIGNED NOT NULL,
RENAME t2;
SELECT * FROM t1 ORDER BY int_field;
ERROR 42S02: Table 'test.t1' doesn't exist
SELECT * FROM t2 ORDER BY unsigned_int_field;
unsigned_int_field	char_field
1	edno
1	edno
2	dve
3	tri
5	pet
DESCRIBE t2;
Field	Type	Null	Key	Default	Extra
unsigned_int_field	int(10) unsigned	NO	MUL	NULL	
char_field	char(10)	YES		NULL	
DESCRIBE t2;
Field	Type	Null	Key	Default	Extra
unsigned_int_field	int(10) unsigned	NO	MUL	NULL	
char_field	char(10)	YES		NULL	
ALTER TABLE t2 MODIFY unsigned_int_field BIGINT UNSIGNED NOT NULL;
DESCRIBE t2;
Field	Type	Null	Key	Default	Extra
unsigned_int_field	bigint(20) unsigned	NO	MUL	NULL	
char_field	char(10)	YES		NULL	
DROP TABLE t2;
CREATE TABLE t1 (f1 INT, f2 INT, f3 INT);
INSERT INTO t1 VALUES (1, 2, NULL);
SELECT * FROM t1;
f1	f2	f3
1	2	NULL
ALTER TABLE t1 MODIFY COLUMN f3 INT AFTER f1;
SELECT * FROM t1;
f1	f3	f2
1	NULL	2
ALTER TABLE t1 MODIFY COLUMN f3 INT AFTER f2;
SELECT * FROM t1;
f1	f2	f3
1	2	NULL
DROP TABLE t1;
create table t1 (c char(10) default "Two");
lock table t1 write;
insert into t1 values ();
alter table t1 modify c char(10) default "Three";
unlock tables;
select * from t1;
c
Two
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
drop table t1;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (id int, c int) character set latin1;
INSERT INTO t1 VALUES (1,1);
ALTER TABLE t1 CHANGE c d int;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE t1 CHANGE d c int;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE t1 MODIFY c VARCHAR(10);
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
ALTER TABLE t1 CHANGE c d varchar(10);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE t1 CHANGE d c varchar(10);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
DROP TABLE t1;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (id int, c int) character set utf8;
INSERT INTO t1 VALUES (1,1);
ALTER TABLE t1 CHANGE c d int;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE t1 CHANGE d c int;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE t1 MODIFY c VARCHAR(10);
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
ALTER TABLE t1 CHANGE c d varchar(10);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE t1 CHANGE d c varchar(10);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
DROP TABLE t1;
create table t1(f1 int not null, f2 int not null, key  (f1), key (f2));
select index_length into @unpaked_keys_size from
information_schema.tables where table_name='t1';
alter table t1 pack_keys=1;
select index_length into @paked_keys_size from
information_schema.tables where table_name='t1';
select (@unpaked_keys_size > @paked_keys_size);
(@unpaked_keys_size > @paked_keys_size)
1
select max_data_length into @orig_max_data_length from
information_schema.tables where table_name='t1';
alter table t1 max_rows=100;
select max_data_length into @changed_max_data_length from
information_schema.tables where table_name='t1';
select (@orig_max_data_length > @changed_max_data_length);
(@orig_max_data_length > @changed_max_data_length)
1
drop table t1;
CREATE TABLE t1(a INT AUTO_INCREMENT PRIMARY KEY, 
b ENUM('a', 'b', 'c') NOT NULL);
INSERT INTO t1 (b) VALUES ('a'), ('c'), ('b'), ('b'), ('a');
ALTER TABLE t1 MODIFY b ENUM('a', 'z', 'b', 'c') NOT NULL;
SELECT * FROM t1;
a	b
1	a
2	c
3	b
4	b
5	a
DROP TABLE t1;
SET @save_sql_mode=@@sql_mode;
SET sql_mode=strict_all_tables;
CREATE TABLE t1 (a int NOT NULL default 42);
INSERT INTO t1 values ();
SELECT * FROM t1;
a
42
ALTER TABLE t1 ALTER COLUMN a DROP DEFAULT;
INSERT INTO t1 values ();
ERROR HY000: Field 'a' doesn't have a default value
INSERT INTO t1 (a) VALUES (11);
SELECT * FROM t1 ORDER BY a;
a
11
42
DROP TABLE t1;
SET @@sql_mode=@save_sql_mode;
#
# Bug#45567: Fast ALTER TABLE broken for enum and set
#
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a ENUM('a1','a2'));
INSERT INTO t1 VALUES ('a1'),('a2');
# No copy: No modification
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2');
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
# No copy: Add new enumeration to the end
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2','a3');
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
# Copy: Modify and add new to the end
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2','xx','a5');
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
# Copy: Remove from the end
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2','xx');
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
# Copy: Add new enumeration
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2','a0','xx');
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
# No copy: Add new enumerations to the end
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2','a0','xx','a5','a6');
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
DROP TABLE t1;
CREATE TABLE t1 (a SET('a1','a2'));
INSERT INTO t1 VALUES ('a1'),('a2');
# No copy: No modification
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2');
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
# No copy: Add new to the end
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','a3');
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
# Copy: Modify and add new to the end
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','xx','a5');
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
# Copy: Remove from the end
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','xx');
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
# Copy: Add new member
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','a0','xx');
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
# No copy: Add new to the end
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','a0','xx','a5','a6');
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
# Copy: Numerical incrase (pack lenght)
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','a0','xx','a5','a6','a7','a8','a9','a10');
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
DROP TABLE t1;
CREATE TABLE t1 (f1 TIMESTAMP NULL DEFAULT NULL,
f2 INT(11) DEFAULT NULL) ENGINE=MYISAM DEFAULT CHARSET=utf8;
INSERT INTO t1 VALUES (NULL, NULL), ("2009-10-09 11:46:19", 2);
this should affect no rows as there is no real change
ALTER TABLE t1 CHANGE COLUMN f1 f1_no_real_change TIMESTAMP NULL DEFAULT NULL;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
DROP TABLE t1;
#
# Bug #31145: ALTER TABLE DROP COLUMN, ADD COLUMN crashes (linux) 
#   or freezes (win) the server
#
CREATE TABLE t1 (a TEXT, id INT, b INT);
ALTER TABLE t1 DROP COLUMN a, ADD COLUMN c TEXT FIRST;
DROP TABLE t1;
#
# Test for bug #12652385 - "61493: REORDERING COLUMNS TO POSITION
#                           FIRST CAN CAUSE DATA TO BE CORRUPTED".
#
drop table if exists t1;
# Use MyISAM engine as the fact that InnoDB doesn't support
# in-place ALTER TABLE in cases when columns are being renamed
# hides some bugs.
create table t1 (i int, j int) engine=myisam;
insert into t1 value (1, 2);
# First, test for original problem described in the bug report.
select * from t1;
i	j
1	2
# Change of column order by the below ALTER TABLE statement should
# affect both column names and column contents.
alter table t1 modify column j int first;
select * from t1;
j	i
2	1
# Now test for similar problem with the same root.
# The below ALTER TABLE should change not only the name but
# also the value for the last column of the table.
alter table t1 drop column i, add column k int default 0;
select * from t1;
j	k
2	0
# Clean-up.
drop table t1;
End of 5.1 tests
CREATE TABLE t1(c CHAR(10), 
i INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY);
INSERT INTO t1 VALUES('a',2),('b',4),('c',6);
ALTER TABLE t1
DROP i,
ADD i INT UNSIGNED NOT NULL AUTO_INCREMENT,
AUTO_INCREMENT = 1;
DROP TABLE t1;
CREATE TABLE t1 (a CHAR(1), PRIMARY KEY (a(255)));
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
CREATE TABLE t1 (a CHAR(1));
ALTER TABLE t1 ADD PRIMARY KEY (a(20));
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
ALTER TABLE t1 ADD KEY (a(20));
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
CREATE UNIQUE INDEX i1 ON t1 (a(20));
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
CREATE INDEX i2 ON t1 (a(20));
ERROR HY000: Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
DROP TABLE t1;
CREATE TABLE t1 (id int);
INSERT INTO t1 VALUES (1), (2);
ALTER TABLE t1 ADD COLUMN (f1 INT), ADD COLUMN (f2 INT), ADD KEY f2k(f2);
DROP TABLE t1;
#
# Test for bug #53820 "ALTER a MEDIUMINT column table causes full
#                      table copy".
#
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a INT, b MEDIUMINT);
INSERT INTO t1 VALUES (1, 1), (2, 2);
# The below ALTER should not copy table and so no rows should
# be shown as affected.
ALTER TABLE t1 CHANGE a id INT;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
DROP TABLE t1;
#
# Bug#11754461 CANNOT ALTER TABLE WHEN KEY PREFIX TOO LONG
#
DROP DATABASE IF EXISTS db1;
CREATE DATABASE db1 CHARACTER SET utf8;
CREATE TABLE db1.t1 (bar TINYTEXT, KEY (bar(100)));
ALTER TABLE db1.t1 ADD baz INT;
DROP DATABASE db1;
# Additional coverage for refactoring which is made as part
# of fix for bug #27480 "Extend CREATE TEMPORARY TABLES privilege
# to allow temp table operations".
#
# At some point the below test case failed on assertion.
DROP TABLE IF EXISTS t1;
CREATE TEMPORARY TABLE t1 (i int) ENGINE=MyISAM;
ALTER TABLE t1 DISCARD TABLESPACE;
ERROR HY000: Storage engine MyISAM of the table `test`.`t1` doesn't have this option
DROP TABLE t1;
#
# Bug#11938039 RE-EXECUTION OF FRM-ONLY ALTER TABLE WITH RENAME
#              CLAUSE FAILS OR ABORTS SERVER.
#
drop table if exists t1;
create table t1 (a int);
prepare stmt1 from 'alter table t1 alter column a set default 1, rename to t2';
execute stmt1;
rename table t2 to t1;
# The below statement should succeed and not emit error or abort server.
execute stmt1;
deallocate prepare stmt1;
drop table t2;
CREATE TABLE t1 (
id INT(11) NOT NULL,
x_param INT(11) DEFAULT NULL,
PRIMARY KEY (id)
) ENGINE=MYISAM;
ALTER TABLE t1 ADD COLUMN IF NOT EXISTS id INT,
ADD COLUMN IF NOT EXISTS lol INT AFTER id;
Warnings:
Note	1060	Duplicate column name 'id'
ALTER TABLE t1 ADD COLUMN IF NOT EXISTS lol INT AFTER id;
Warnings:
Note	1060	Duplicate column name 'lol'
ALTER TABLE t1 DROP COLUMN IF EXISTS lol;
ALTER TABLE t1 DROP COLUMN IF EXISTS lol;
Warnings:
Note	1091	Can't DROP 'lol'; check that column/key exists
ALTER TABLE t1 ADD KEY IF NOT EXISTS x_param(x_param);
ALTER TABLE t1 ADD KEY IF NOT EXISTS x_param(x_param);
Warnings:
Note	1061	Duplicate key name 'x_param'
ALTER TABLE t1 MODIFY IF EXISTS lol INT;
Warnings:
Note	1054	Unknown column 'lol' in 't1'
DROP INDEX IF EXISTS x_param ON t1;
DROP INDEX IF EXISTS x_param ON t1;
Warnings:
Note	1091	Can't DROP 'x_param'; check that column/key exists
CREATE INDEX IF NOT EXISTS x_param1 ON t1(x_param);
CREATE INDEX IF NOT EXISTS x_param1 ON t1(x_param);
Warnings:
Note	1061	Duplicate key name 'x_param1'
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `x_param` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `x_param1` (`x_param`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1 (
id INT(11) NOT NULL,
x_param INT(11) DEFAULT NULL,
PRIMARY KEY (id)
) ENGINE=INNODB;
CREATE TABLE t2 (
id INT(11) NOT NULL) ENGINE=INNODB;
ALTER TABLE t1 ADD COLUMN IF NOT EXISTS id INT,
ADD COLUMN IF NOT EXISTS lol INT AFTER id;
Warnings:
Note	1060	Duplicate column name 'id'
ALTER TABLE t1 ADD COLUMN IF NOT EXISTS lol INT AFTER id;
Warnings:
Note	1060	Duplicate column name 'lol'
ALTER TABLE t1 DROP COLUMN IF EXISTS lol;
ALTER TABLE t1 DROP COLUMN IF EXISTS lol;
Warnings:
Note	1091	Can't DROP 'lol'; check that column/key exists
ALTER TABLE t1 ADD KEY IF NOT EXISTS x_param(x_param);
ALTER TABLE t1 ADD KEY IF NOT EXISTS x_param(x_param);
Warnings:
Note	1061	Duplicate key name 'x_param'
ALTER TABLE t1 MODIFY IF EXISTS lol INT;
Warnings:
Note	1054	Unknown column 'lol' in 't1'
DROP INDEX IF EXISTS x_param ON t1;
DROP INDEX IF EXISTS x_param ON t1;
Warnings:
Note	1091	Can't DROP 'x_param'; check that column/key exists
CREATE INDEX IF NOT EXISTS x_param1 ON t1(x_param);
CREATE INDEX IF NOT EXISTS x_param1 ON t1(x_param);
Warnings:
Note	1061	Duplicate key name 'x_param1'
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `x_param` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `x_param1` (`x_param`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
ALTER TABLE t2 ADD FOREIGN KEY IF NOT EXISTS fk(id) REFERENCES t1(id);
ALTER TABLE t2 ADD FOREIGN KEY IF NOT EXISTS fk(id) REFERENCES t1(id);
Warnings:
Note	1061	Duplicate key name 'fk'
ALTER TABLE t2 DROP FOREIGN KEY IF EXISTS fk;
ALTER TABLE t2 DROP FOREIGN KEY IF EXISTS fk;
Warnings:
Note	1091	Can't DROP 'fk'; check that column/key exists
SHOW CREATE TABLE t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `id` int(11) NOT NULL,
  KEY `fk` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
ALTER TABLE t2 ADD FOREIGN KEY (id) REFERENCES t1(id);
ALTER TABLE t2 ADD FOREIGN KEY IF NOT EXISTS t2_ibfk_1(id) REFERENCES t1(id);
Warnings:
Note	1061	Duplicate key name 't2_ibfk_1'
ALTER TABLE t2 DROP FOREIGN KEY IF EXISTS t2_ibfk_1;
ALTER TABLE t2 DROP FOREIGN KEY IF EXISTS t2_ibfk_1;
Warnings:
Note	1091	Can't DROP 't2_ibfk_1'; check that column/key exists
SHOW CREATE TABLE t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `id` int(11) NOT NULL,
  KEY `id` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t2;
DROP TABLE t1;
#
# Bug#11938817 ALTER BEHAVIOR DIFFERENT THEN DOCUMENTED
#
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a INT) engine=innodb;
INSERT INTO t1 VALUES (1), (2);
# This should not do anything
ALTER TABLE t1;
affected rows: 0
# Check that we rebuild the table
ALTER TABLE t1 engine=innodb;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
# This should also rebuild the table
ALTER TABLE t1 FORCE;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
DROP TABLE t1;
# Bug#11748057 (formerly known as 34972): ALTER TABLE statement doesn't
#                                         identify correct column name.
#
CREATE TABLE t1 (c1 int unsigned , c2 char(100) not null default '');
ALTER TABLE t1 ADD c3 char(16) NOT NULL DEFAULT '' AFTER c2,
MODIFY c2 char(100) NOT NULL DEFAULT '' AFTER c1;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(10) unsigned DEFAULT NULL,
  `c2` char(100) NOT NULL DEFAULT '',
  `c3` char(16) NOT NULL DEFAULT ''
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
#
# WL#5534 Online ALTER, Phase 1
#
# Single thread tests.
# See innodb_mysql_sync.test for multi thread tests.
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a INT PRIMARY KEY, b INT) engine=InnoDB;
CREATE TABLE m1(a INT PRIMARY KEY, b INT) engine=MyISAM;
INSERT INTO t1 VALUES (1,1), (2,2);
INSERT INTO m1 VALUES (1,1), (2,2);
#
# 1: Test ALGORITHM keyword
#
# --enable_info allows us to see how many rows were updated
# by ALTER TABLE. in-place will show 0 rows, while copy > 0.
ALTER TABLE t1 ADD INDEX i1(b);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE t1 ADD INDEX i2(b), ALGORITHM= DEFAULT;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i2' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i3(b), ALGORITHM= COPY;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i3' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i4(b), ALGORITHM= INPLACE;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i4' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i5(b), ALGORITHM= INVALID;
ERROR HY000: Unknown ALGORITHM 'INVALID'
ALTER TABLE m1 ENABLE KEYS;
affected rows: 0
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= DEFAULT;
affected rows: 0
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= COPY;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= INPLACE;
affected rows: 0
ALTER TABLE t1 DROP INDEX i1, DROP INDEX i2, DROP INDEX i3, DROP INDEX i4;
#
# 2: Test ALGORITHM + old_alter_table
#
SET SESSION old_alter_table= 1;
affected rows: 0
ALTER TABLE t1 ADD INDEX i1(b);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE t1 ADD INDEX i2(b), ALGORITHM= DEFAULT;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i2' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i3(b), ALGORITHM= COPY;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i3' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i4(b), ALGORITHM= INPLACE;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i4' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
SET SESSION old_alter_table= 0;
affected rows: 0
ALTER TABLE t1 DROP INDEX i1, DROP INDEX i2, DROP INDEX i3, DROP INDEX i4;
#
# 3: Test unsupported in-place operation
#
ALTER TABLE t1 ADD COLUMN (c1 INT);
ALTER TABLE t1 ADD COLUMN (c2 INT), ALGORITHM= DEFAULT;
ALTER TABLE t1 ADD COLUMN (c3 INT), ALGORITHM= COPY;
ALTER TABLE t1 ADD COLUMN (c4 INT), ALGORITHM= INPLACE;
ALTER TABLE t1 DROP COLUMN c1, DROP COLUMN c2, DROP COLUMN c3, DROP COLUMN c4;
#
# 4: Test LOCK keyword
#
ALTER TABLE t1 ADD INDEX i1(b), LOCK= DEFAULT;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE t1 ADD INDEX i2(b), LOCK= NONE;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i2' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i3(b), LOCK= SHARED;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i3' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i4(b), LOCK= EXCLUSIVE;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i4' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i5(b), LOCK= INVALID;
ERROR HY000: Unknown LOCK type 'INVALID'
ALTER TABLE m1 ENABLE KEYS, LOCK= DEFAULT;
ALTER TABLE m1 ENABLE KEYS, LOCK= NONE;
ERROR 0A000: LOCK=NONE/SHARED is not supported for this operation. Try LOCK=EXCLUSIVE.
ALTER TABLE m1 ENABLE KEYS, LOCK= SHARED;
ERROR 0A000: LOCK=NONE/SHARED is not supported for this operation. Try LOCK=EXCLUSIVE.
ALTER TABLE m1 ENABLE KEYS, LOCK= EXCLUSIVE;
ALTER TABLE t1 DROP INDEX i1, DROP INDEX i2, DROP INDEX i3, DROP INDEX i4;
#
# 5: Test ALGORITHM + LOCK
#
ALTER TABLE t1 ADD INDEX i1(b), ALGORITHM= INPLACE, LOCK= NONE;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE t1 ADD INDEX i2(b), ALGORITHM= INPLACE, LOCK= SHARED;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i2' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i3(b), ALGORITHM= INPLACE, LOCK= EXCLUSIVE;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i3' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i4(b), ALGORITHM= COPY, LOCK= NONE;
ERROR 0A000: LOCK=NONE is not supported. Reason: COPY algorithm requires a lock. Try LOCK=SHARED.
ALTER TABLE t1 ADD INDEX i5(b), ALGORITHM= COPY, LOCK= SHARED;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i5' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE t1 ADD INDEX i6(b), ALGORITHM= COPY, LOCK= EXCLUSIVE;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 1
Warnings:
Note	1831	Duplicate index 'i6' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= INPLACE, LOCK= NONE;
ERROR 0A000: LOCK=NONE/SHARED is not supported for this operation. Try LOCK=EXCLUSIVE.
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= INPLACE, LOCK= SHARED;
ERROR 0A000: LOCK=NONE/SHARED is not supported for this operation. Try LOCK=EXCLUSIVE.
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= INPLACE, LOCK= EXCLUSIVE;
affected rows: 0
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= COPY, LOCK= NONE;
ERROR 0A000: LOCK=NONE is not supported. Reason: COPY algorithm requires a lock. Try LOCK=SHARED.
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= COPY, LOCK= SHARED;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= COPY, LOCK= EXCLUSIVE;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
DROP TABLE t1, m1;
#
# 6: Possible deadlock involving thr_lock.c
#
CREATE TABLE t1(a INT PRIMARY KEY, b INT);
INSERT INTO t1 VALUES (1,1), (2,2);
START TRANSACTION;
INSERT INTO t1 VALUES (3,3);
# Connection con1
# Sending:
ALTER TABLE t1 DISABLE KEYS;
# Connection default
# Waiting until ALTER TABLE is blocked.
UPDATE t1 SET b = 4;
COMMIT;
# Connection con1
# Reaping: ALTER TABLE t1 DISABLE KEYS
# Connection default
DROP TABLE t1;
#
# 7: Which operations require copy and which can be done in-place?
#
# Test which ALTER TABLE operations are done in-place and
# which operations are done using temporary table copy.
#
# --enable_info allows us to see how many rows were updated
# by ALTER TABLE. in-place will show 0 rows, while copy > 0.
#
DROP TABLE IF EXISTS ti1, ti2, ti3, tm1, tm2, tm3;
# Single operation tests
CREATE TABLE ti1(a INT NOT NULL, b INT, c INT) engine=InnoDB;
CREATE TABLE tm1(a INT NOT NULL, b INT, c INT) engine=MyISAM;
CREATE TABLE ti2(a INT PRIMARY KEY AUTO_INCREMENT, b INT, c INT) engine=InnoDB;
CREATE TABLE tm2(a INT PRIMARY KEY AUTO_INCREMENT, b INT, c INT) engine=MyISAM;
INSERT INTO ti1 VALUES (1,1,1), (2,2,2);
INSERT INTO ti2 VALUES (1,1,1), (2,2,2);
INSERT INTO tm1 VALUES (1,1,1), (2,2,2);
INSERT INTO tm2 VALUES (1,1,1), (2,2,2);
ALTER TABLE ti1;
affected rows: 0
ALTER TABLE tm1;
affected rows: 0
ALTER TABLE ti1 ADD COLUMN d VARCHAR(200);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ADD COLUMN d VARCHAR(200);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ADD COLUMN d2 VARCHAR(200);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ADD COLUMN d2 VARCHAR(200);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ADD COLUMN e ENUM('a', 'b') FIRST;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ADD COLUMN e ENUM('a', 'b') FIRST;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ADD COLUMN f INT AFTER a;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ADD COLUMN f INT AFTER a;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ADD INDEX ii1(b);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ADD INDEX im1(b);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ADD UNIQUE INDEX ii2 (c);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ADD UNIQUE INDEX im2 (c);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ADD FULLTEXT INDEX ii3 (d);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 1
Warnings:
Warning	124	InnoDB rebuilding table to add column FTS_DOC_ID
ALTER TABLE tm1 ADD FULLTEXT INDEX im3 (d);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ADD FULLTEXT INDEX ii4 (d2);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ADD FULLTEXT INDEX im4 (d2);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ADD PRIMARY KEY(a), ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported. Reason: InnoDB presently supports one FULLTEXT index creation at a time. Try ALGORITHM=COPY.
ALTER TABLE ti1 ADD PRIMARY KEY(a);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ADD PRIMARY KEY(a);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 DROP INDEX ii3;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 DROP INDEX im3;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 DROP COLUMN d2;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 DROP COLUMN d2;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ADD CONSTRAINT fi1 FOREIGN KEY (b) REFERENCES ti2(a);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ADD CONSTRAINT fm1 FOREIGN KEY (b) REFERENCES tm2(a);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ALTER COLUMN b SET DEFAULT 1;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ALTER COLUMN b SET DEFAULT 1;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 ALTER COLUMN b DROP DEFAULT;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ALTER COLUMN b DROP DEFAULT;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 CHANGE COLUMN f g INT;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 CHANGE COLUMN f g INT;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 CHANGE COLUMN g h VARCHAR(20);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 CHANGE COLUMN g h VARCHAR(20);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 MODIFY COLUMN e ENUM('a', 'b', 'c');
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 MODIFY COLUMN e ENUM('a', 'b', 'c');
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 MODIFY COLUMN e INT;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 MODIFY COLUMN e INT;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 MODIFY COLUMN e INT AFTER h;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 MODIFY COLUMN e INT AFTER h;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 MODIFY COLUMN e INT FIRST;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 MODIFY COLUMN e INT FIRST;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
SET @orig_sql_mode = @@sql_mode;
SET @@sql_mode = 'STRICT_TRANS_TABLES';
ALTER TABLE ti1 MODIFY COLUMN c INT NOT NULL;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
SET @@sql_mode = @orig_sql_mode;
ALTER TABLE tm1 MODIFY COLUMN c INT NOT NULL;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 MODIFY COLUMN c INT NULL;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 MODIFY COLUMN c INT NULL;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 MODIFY COLUMN h VARCHAR(30);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 MODIFY COLUMN h VARCHAR(30);
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 MODIFY COLUMN h VARCHAR(30) AFTER d;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 MODIFY COLUMN h VARCHAR(30) AFTER d;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 DROP COLUMN h;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 DROP COLUMN h;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 DROP INDEX ii2;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 DROP INDEX im2;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 DROP PRIMARY KEY;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 DROP PRIMARY KEY;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 DROP FOREIGN KEY fi1;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 DROP FOREIGN KEY fm1;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 RENAME TO ti3;
affected rows: 0
ALTER TABLE tm1 RENAME TO tm3;
affected rows: 0
ALTER TABLE ti3 RENAME TO ti1;
affected rows: 0
ALTER TABLE tm3 RENAME TO tm1;
affected rows: 0
ALTER TABLE ti1 ORDER BY b;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 ORDER BY b;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 CONVERT TO CHARACTER SET utf16;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 CONVERT TO CHARACTER SET utf16;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 DEFAULT CHARACTER SET utf8;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 DEFAULT CHARACTER SET utf8;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 FORCE;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 FORCE;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 AUTO_INCREMENT 3;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 AUTO_INCREMENT 3;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 AVG_ROW_LENGTH 10;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 AVG_ROW_LENGTH 10;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 CHECKSUM 1;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 CHECKSUM 1;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 COMMENT 'test';
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 COMMENT 'test';
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 MAX_ROWS 100;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 MAX_ROWS 100;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 MIN_ROWS 1;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 MIN_ROWS 1;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE ti1 PACK_KEYS 1;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE tm1 PACK_KEYS 1;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
DROP TABLE ti1, ti2, tm1, tm2;
# Tests of >1 operation (InnoDB)
CREATE TABLE ti1(a INT PRIMARY KEY AUTO_INCREMENT, b INT) engine=InnoDB;
INSERT INTO ti1(b) VALUES (1), (2);
ALTER TABLE ti1 RENAME TO ti3, ADD INDEX ii1(b);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
ALTER TABLE ti3 DROP INDEX ii1, AUTO_INCREMENT 5;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
INSERT INTO ti3(b) VALUES (5);
ALTER TABLE ti3 ADD INDEX ii1(b), AUTO_INCREMENT 7;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
INSERT INTO ti3(b) VALUES (7);
SELECT * FROM ti3;
a	b
1	1
2	2
5	5
7	7
DROP TABLE ti3;
#
# 8: Scenario in which ALTER TABLE was returning an unwarranted
#    ER_ILLEGAL_HA error at some point during work on this WL.
#
CREATE TABLE tm1(i INT DEFAULT 1) engine=MyISAM;
ALTER TABLE tm1 ADD INDEX ii1(i), ALTER COLUMN i DROP DEFAULT;
DROP TABLE tm1;
create table if not exists t1 (i int);
alter table t1 add key (i);
alter table t1 add key if not exists (i);
Warnings:
Note	1061	Duplicate key name 'i'
DROP TABLE t1;
create table t1 (a int);
alter table t1 change column if exists a b bigint;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `b` bigint(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
create table t1 (i int);
alter table t1 add unique index if not exists idx(i);
alter table t1 add unique index if not exists idx(i);
Warnings:
Note	1061	Duplicate key name 'idx'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int(11) DEFAULT NULL,
  UNIQUE KEY `idx` (`i`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;