alter_table.result

drop table if exists t1,t2;
drop database if exists mysqltest;
SET sql_mode = 'NO_ENGINE_SUBSTITUTION,NO_AUTO_CREATE_USER';
SET SESSION information_schema_stats=latest;
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) engine=myisam;
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 (bandID MEDIUMINT UNSIGNED NOT NULL PRIMARY KEY, payoutID SMALLINT UNSIGNED NOT NULL) engine=InnoDB;
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;
Warnings:
Warning	1105	ORDER BY ignored as there is a user-defined clustered index in the table 't1'
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
alter table t1 order by bandid,payoutid;
Warnings:
Warning	1105	ORDER BY ignored as there is a user-defined clustered index in the table 't1'
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) ) engine=Myisam;
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	Visible
t1	0	n1	1	n1	A	0	NULL	NULL		BTREE			YES
t1	1	n1_2	1	n1	A	NULL	NULL	NULL		BTREE	disabled		YES
t1	1	n1_2	2	n2	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n1_2	3	n3	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n1_2	4	n4	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n2	1	n2	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n2	2	n3	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n2	3	n4	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n2	4	n1	A	NULL	NULL	NULL		BTREE	disabled		YES
t1	1	n3	1	n3	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n3	2	n4	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n3	3	n1	A	NULL	NULL	NULL		BTREE	disabled		YES
t1	1	n3	4	n2	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n4	1	n4	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n4	2	n1	A	NULL	NULL	NULL		BTREE	disabled		YES
t1	1	n4	3	n2	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
t1	1	n4	4	n3	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
insert into t1 values(10,RAND()*1000,RAND()*1000,RAND());
insert into t1 values(9,RAND()*1000,RAND()*1000,RAND());
insert into t1 values(8,RAND()*1000,RAND()*1000,RAND());
insert into t1 values(7,RAND()*1000,RAND()*1000,RAND());
insert into t1 values(6,RAND()*1000,RAND()*1000,RAND());
insert into t1 values(5,RAND()*1000,RAND()*1000,RAND());
insert into t1 values(4,RAND()*1000,RAND()*1000,RAND());
insert into t1 values(3,RAND()*1000,RAND()*1000,RAND());
insert into t1 values(2,RAND()*1000,RAND()*1000,RAND());
insert into t1 values(1,RAND()*1000,RAND()*1000,RAND());
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	Visible
t1	0	n1	1	n1	A	10	NULL	NULL		BTREE			YES
t1	1	n1_2	1	n1	A	10	NULL	NULL		BTREE			YES
t1	1	n1_2	2	n2	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n1_2	3	n3	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n1_2	4	n4	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n2	1	n2	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n2	2	n3	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n2	3	n4	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n2	4	n1	A	10	NULL	NULL		BTREE			YES
t1	1	n3	1	n3	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n3	2	n4	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n3	3	n1	A	10	NULL	NULL		BTREE			YES
t1	1	n3	4	n2	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n4	1	n4	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n4	2	n1	A	10	NULL	NULL		BTREE			YES
t1	1	n4	3	n2	A	10	NULL	NULL	YES	BTREE			YES
t1	1	n4	4	n3	A	10	NULL	NULL	YES	BTREE			YES
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);
insert into t1 values(1,100), (2,100), (3, 100);
insert into t1 values(1,99), (2,99), (3, 99);
insert into t1 values(1,98), (2,98), (3, 98);
insert into t1 values(1,97), (2,97), (3, 97);
insert into t1 values(1,96), (2,96), (3, 96);
insert into t1 values(1,95), (2,95), (3, 95);
insert into t1 values(1,94), (2,94), (3, 94);
insert into t1 values(1,93), (2,93), (3, 93);
insert into t1 values(1,92), (2,92), (3, 92);
insert into t1 values(1,91), (2,91), (3, 91);
insert into t1 values(1,90), (2,90), (3, 90);
insert into t1 values(1,89), (2,89), (3, 89);
insert into t1 values(1,88), (2,88), (3, 88);
insert into t1 values(1,87), (2,87), (3, 87);
insert into t1 values(1,86), (2,86), (3, 86);
insert into t1 values(1,85), (2,85), (3, 85);
insert into t1 values(1,84), (2,84), (3, 84);
insert into t1 values(1,83), (2,83), (3, 83);
insert into t1 values(1,82), (2,82), (3, 82);
insert into t1 values(1,81), (2,81), (3, 81);
insert into t1 values(1,80), (2,80), (3, 80);
insert into t1 values(1,79), (2,79), (3, 79);
insert into t1 values(1,78), (2,78), (3, 78);
insert into t1 values(1,77), (2,77), (3, 77);
insert into t1 values(1,76), (2,76), (3, 76);
insert into t1 values(1,75), (2,75), (3, 75);
insert into t1 values(1,74), (2,74), (3, 74);
insert into t1 values(1,73), (2,73), (3, 73);
insert into t1 values(1,72), (2,72), (3, 72);
insert into t1 values(1,71), (2,71), (3, 71);
insert into t1 values(1,70), (2,70), (3, 70);
insert into t1 values(1,69), (2,69), (3, 69);
insert into t1 values(1,68), (2,68), (3, 68);
insert into t1 values(1,67), (2,67), (3, 67);
insert into t1 values(1,66), (2,66), (3, 66);
insert into t1 values(1,65), (2,65), (3, 65);
insert into t1 values(1,64), (2,64), (3, 64);
insert into t1 values(1,63), (2,63), (3, 63);
insert into t1 values(1,62), (2,62), (3, 62);
insert into t1 values(1,61), (2,61), (3, 61);
insert into t1 values(1,60), (2,60), (3, 60);
insert into t1 values(1,59), (2,59), (3, 59);
insert into t1 values(1,58), (2,58), (3, 58);
insert into t1 values(1,57), (2,57), (3, 57);
insert into t1 values(1,56), (2,56), (3, 56);
insert into t1 values(1,55), (2,55), (3, 55);
insert into t1 values(1,54), (2,54), (3, 54);
insert into t1 values(1,53), (2,53), (3, 53);
insert into t1 values(1,52), (2,52), (3, 52);
insert into t1 values(1,51), (2,51), (3, 51);
insert into t1 values(1,50), (2,50), (3, 50);
insert into t1 values(1,49), (2,49), (3, 49);
insert into t1 values(1,48), (2,48), (3, 48);
insert into t1 values(1,47), (2,47), (3, 47);
insert into t1 values(1,46), (2,46), (3, 46);
insert into t1 values(1,45), (2,45), (3, 45);
insert into t1 values(1,44), (2,44), (3, 44);
insert into t1 values(1,43), (2,43), (3, 43);
insert into t1 values(1,42), (2,42), (3, 42);
insert into t1 values(1,41), (2,41), (3, 41);
insert into t1 values(1,40), (2,40), (3, 40);
insert into t1 values(1,39), (2,39), (3, 39);
insert into t1 values(1,38), (2,38), (3, 38);
insert into t1 values(1,37), (2,37), (3, 37);
insert into t1 values(1,36), (2,36), (3, 36);
insert into t1 values(1,35), (2,35), (3, 35);
insert into t1 values(1,34), (2,34), (3, 34);
insert into t1 values(1,33), (2,33), (3, 33);
insert into t1 values(1,32), (2,32), (3, 32);
insert into t1 values(1,31), (2,31), (3, 31);
insert into t1 values(1,30), (2,30), (3, 30);
insert into t1 values(1,29), (2,29), (3, 29);
insert into t1 values(1,28), (2,28), (3, 28);
insert into t1 values(1,27), (2,27), (3, 27);
insert into t1 values(1,26), (2,26), (3, 26);
insert into t1 values(1,25), (2,25), (3, 25);
insert into t1 values(1,24), (2,24), (3, 24);
insert into t1 values(1,23), (2,23), (3, 23);
insert into t1 values(1,22), (2,22), (3, 22);
insert into t1 values(1,21), (2,21), (3, 21);
insert into t1 values(1,20), (2,20), (3, 20);
insert into t1 values(1,19), (2,19), (3, 19);
insert into t1 values(1,18), (2,18), (3, 18);
insert into t1 values(1,17), (2,17), (3, 17);
insert into t1 values(1,16), (2,16), (3, 16);
insert into t1 values(1,15), (2,15), (3, 15);
insert into t1 values(1,14), (2,14), (3, 14);
insert into t1 values(1,13), (2,13), (3, 13);
insert into t1 values(1,12), (2,12), (3, 12);
insert into t1 values(1,11), (2,11), (3, 11);
insert into t1 values(1,10), (2,10), (3, 10);
insert into t1 values(1,9), (2,9), (3, 9);
insert into t1 values(1,8), (2,8), (3, 8);
insert into t1 values(1,7), (2,7), (3, 7);
insert into t1 values(1,6), (2,6), (3, 6);
insert into t1 values(1,5), (2,5), (3, 5);
insert into t1 values(1,4), (2,4), (3, 4);
insert into t1 values(1,3), (2,3), (3, 3);
insert into t1 values(1,2), (2,2), (3, 2);
insert into t1 values(1,1), (2,1), (3, 1);
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	Visible
t1	0	a	1	a	A	3	NULL	NULL	YES	BTREE			YES
t1	0	a	2	b	A	300	NULL	NULL	YES	BTREE			YES
t1	1	b	1	b	A	100	NULL	NULL	YES	BTREE			YES
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
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	Visible
t1	0	a	1	a	A	3	NULL	NULL	YES	BTREE			YES
t1	0	a	2	b	A	300	NULL	NULL	YES	BTREE			YES
t1	1	b	1	b	A	100	NULL	NULL	YES	BTREE			YES
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	Visible
t1	0	PRIMARY	1	Host	A	NULL	NULL	NULL		BTREE			YES
t1	0	PRIMARY	2	User	A	0	NULL	NULL		BTREE			YES
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	Visible
t1	0	PRIMARY	1	Host	A	NULL	NULL	NULL		BTREE			YES
t1	0	PRIMARY	2	User	A	0	NULL	NULL		BTREE			YES
t1	1	Host	1	Host	A	NULL	NULL	NULL		BTREE	disabled		YES
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	Visible
t1	0	PRIMARY	1	Host	A	NULL	NULL	NULL		BTREE			YES
t1	0	PRIMARY	2	User	A	0	NULL	NULL		BTREE			YES
t1	1	Host	1	Host	A	NULL	NULL	NULL		BTREE	disabled		YES
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	Visible
t1	0	PRIMARY	1	Host	A	NULL	NULL	NULL		BTREE			YES
t1	0	PRIMARY	2	User	A	2	NULL	NULL		BTREE			YES
t1	1	Host	1	Host	A	1	NULL	NULL		BTREE			YES
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	Visible
t1	0	PRIMARY	1	Host	A	NULL	NULL	NULL		BTREE			YES
t1	0	PRIMARY	2	User	A	0	NULL	NULL		BTREE			YES
t1	1	Host	1	Host	A	NULL	NULL	NULL		BTREE	disabled		YES
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);
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		
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 ('ÔÅÓÔ');
select a,hex(a) from t1;
a	hex(a)
ÔÅÓÔ	D4C5D3D4
alter table t1 change a a char(10) character set cp1251;
select a,hex(a) from t1;
a	hex(a)
ÔÅÓÔ	F2E5F1F2
alter table t1 change a a binary(4);
select a,hex(a) from t1;
a	hex(a)
òåñò	F2E5F1F2
alter table t1 change a a char(10) character set cp1251;
select a,hex(a) from t1;
a	hex(a)
ÔÅÓÔ	F2E5F1F2
alter table t1 change a a char(10) character set koi8r;
select a,hex(a) from t1;
a	hex(a)
ÔÅÓÔ	D4C5D3D4
alter table t1 change a a varchar(10) character set cp1251;
select a,hex(a) from t1;
a	hex(a)
ÔÅÓÔ	F2E5F1F2
alter table t1 change a a char(10) character set koi8r;
select a,hex(a) from t1;
a	hex(a)
ÔÅÓÔ	D4C5D3D4
alter table t1 change a a text character set cp1251;
select a,hex(a) from t1;
a	hex(a)
ÔÅÓÔ	F2E5F1F2
alter table t1 change a a char(10) character set koi8r;
select a,hex(a) from t1;
a	hex(a)
ÔÅÓÔ	D4C5D3D4
delete from t1;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` char(10) CHARACTER SET koi8r DEFAULT NULL
) ENGINE=InnoDB 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=InnoDB 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=InnoDB 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=InnoDB 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=InnoDB 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=InnoDB 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=InnoDB 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: Table storage engine for 'T12207' doesn't have this option
DROP TABLE T12207;
create table t1 (a text) character set koi8r;
insert into t1 values (_koi8r'ÔÅÓÔ');
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)) engine=myisam;
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	Visible
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
"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	Visible
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
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	Visible
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
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	Visible
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
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	Visible
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
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	Visible
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
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	Visible
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
"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	Visible
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
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	Visible
t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
drop table t1;
"Now will test with one unique index"
create table t1(a int, b char(10), unique(a)) engine=myisam;
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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
"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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
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)) engine=myisam;
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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE			YES
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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE			YES
"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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
"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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
"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	Visible
t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
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) ENGINE=MyISAM 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)) ENGINE=MyISAM;
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	Visible
bug24219	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE			YES
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	Visible
bug24219_2	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled		YES
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 MySQL 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 MySQL 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 MySQL 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 MySQL 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 sql_mode= default;
create table t1(f1 int) engine=myisam;
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;
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
4	3r4f
5	lmn
alter table t1 change i i bigint;
select * from t1;
i	v
1	def
2	abc
4	3r4f
5	lmn
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=InnoDB 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=InnoDB 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=InnoDB 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=InnoDB 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=InnoDB 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=InnoDB DEFAULT CHARSET=latin1
SHOW CREATE TABLE `tt+2`;
Table	Create Table
tt+2	CREATE TEMPORARY TABLE `tt+2` (
  `c1` int(11) DEFAULT NULL
) ENGINE=InnoDB 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=InnoDB DEFAULT CHARSET=latin1
SHOW CREATE TABLE `@0023sql1`;
Table	Create Table
@0023sql1	CREATE TEMPORARY TABLE `@0023sql1` (
  `c1` int(11) DEFAULT NULL
) ENGINE=InnoDB 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	Visible
t1	1	int_field	1	int_field	A	0	NULL	NULL		BTREE			YES
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)) engine=myisam;
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;
#
# 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)));
ERROR 42000: Specified key was too long; max key length is 255 bytes
CREATE TABLE db1.t1 (bar TINYTEXT, KEY (bar(85)));
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: Table storage engine for '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;
# 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=InnoDB 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:
Warning	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:
Warning	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:
Warning	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:
Warning	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:
Warning	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:
Warning	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:
Warning	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:
Warning	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:
Warning	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:
Warning	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:
Warning	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:
Warning	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:
Warning	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) ENGINE=MyISAM;
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: 0
info: Records: 0  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
ALTER TABLE ti1 MODIFY COLUMN c INT NOT NULL;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
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: 0
info: Records: 0  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: 0
info: Records: 0  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;
#
# Bug#11815557 60269: MYSQL SHOULD REJECT ATTEMPTS TO CREATE SYSTEM
#                     TABLES IN INCORRECT ENGINE
#
# Note: This test assumes that only MyISAM and InnoDB supports system tables.
#       If other engines are made to support system tables,
#       then this test needs to be updated
#
use mysql;
ALTER TABLE db ENGINE=memory;
ERROR HY000: Storage engine 'MEMORY' does not support system tables. [mysql.db]
ALTER TABLE user ENGINE=memory;
ERROR HY000: Storage engine 'MEMORY' does not support system tables. [mysql.user]
ALTER TABLE func ENGINE=csv;
ERROR HY000: Storage engine 'CSV' does not support system tables. [mysql.func]
ALTER TABLE servers ENGINE=merge;
ERROR HY000: Storage engine 'MRG_MYISAM' does not support system tables. [mysql.servers]
ALTER TABLE procs_priv ENGINE=memory;
ERROR HY000: Storage engine 'MEMORY' does not support system tables. [mysql.procs_priv]
ALTER TABLE tables_priv ENGINE=heap;
ERROR HY000: Storage engine 'MEMORY' does not support system tables. [mysql.tables_priv]
ALTER TABLE columns_priv ENGINE=csv;
ERROR HY000: Storage engine 'CSV' does not support system tables. [mysql.columns_priv]
ALTER TABLE time_zone ENGINE=merge;
ERROR HY000: Storage engine 'MRG_MYISAM' does not support system tables. [mysql.time_zone]
ALTER TABLE help_topic ENGINE=merge;
ERROR HY000: Storage engine 'MRG_MYISAM' does not support system tables. [mysql.help_topic]
CREATE TABLE db (dummy int) ENGINE=memory;
ERROR HY000: Storage engine 'MEMORY' does not support system tables. [mysql.db]
CREATE TABLE user (dummy int) ENGINE=memory;
ERROR HY000: Storage engine 'MEMORY' does not support system tables. [mysql.user]
CREATE TABLE func (dummy int) ENGINE=csv;
ERROR HY000: Storage engine 'CSV' does not support system tables. [mysql.func]
CREATE TABLE servers (dummy int) ENGINE=merge;
ERROR HY000: Storage engine 'MRG_MYISAM' does not support system tables. [mysql.servers]
CREATE TABLE procs_priv (dummy int) ENGINE=memory;
ERROR HY000: Storage engine 'MEMORY' does not support system tables. [mysql.procs_priv]
CREATE TABLE tables_priv (dummy int) ENGINE=heap;
ERROR HY000: Storage engine 'MEMORY' does not support system tables. [mysql.tables_priv]
CREATE TABLE columns_priv (dummy int) ENGINE=csv;
ERROR HY000: Storage engine 'CSV' does not support system tables. [mysql.columns_priv]
CREATE TABLE time_zone (dummy int) ENGINE=merge;
ERROR HY000: Storage engine 'MRG_MYISAM' does not support system tables. [mysql.time_zone]
CREATE TABLE help_topic (dummy int) ENGINE=merge;
ERROR HY000: Storage engine 'MRG_MYISAM' does not support system tables. [mysql.help_topic]
use test;
# End of Bug#11815557
#
# Tests for WL#6555 "Online rename index".
#
#
# 1) Tests for syntax and semantics of ALTER TABLE RENAME
#    KEY/INDEX result.
#
# 1.a) Both RENAME KEY and RENAME INDEX variants should be
#      allowed and produce expected results.
create table t1 (pk int primary key, i int, j int, key a(i));
alter table t1 rename key a to b;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `b` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 rename index b to c;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# 1.b) It should be impossible to rename index that doesn't
#      exists, dropped or added within the same ALTER TABLE.
alter table t1 rename key d to e;
ERROR 42000: Key 'd' doesn't exist in table 't1'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 drop key c, rename key c to d;
ERROR 42000: Key 'c' doesn't exist in table 't1'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 add key d(j), rename key d to e;
ERROR 42000: Key 'd' doesn't exist in table 't1'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# 1.c) It should be impossible to rename index to a name
#      which is already used by another index, or is used
#      by index which is added within the same ALTER TABLE.
alter table t1 add key d(j);
alter table t1 rename key c to d;
ERROR 42000: Duplicate key name 'd'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`i`),
  KEY `d` (`j`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 drop key d;
alter table t1 add key d(j), rename key c to d;
ERROR 42000: Duplicate key name 'd'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# 1.d) It should be possible to rename index to a name
#      which belongs to index which is dropped within the
#      same ALTER TABLE.
alter table t1 add key d(j);
alter table t1 drop key c, rename key d to c;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`j`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# 1.e) We disallow renaming from/to PRIMARY as it might
#      lead to some other key becoming "primary" internally,
#      which will be interpreted as dropping/addition of
#      primary key.
alter table t1 rename key primary to d;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'primary to d' at line 1
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`j`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# Even using 'funny' syntax.
alter table t1 rename key t1.primary to d;
ERROR 42000: Incorrect index name 'primary'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`j`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 rename key c to primary;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'primary' at line 1
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`j`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 rename key c to t1.primary;
ERROR 42000: Incorrect index name 'primary'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `c` (`j`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
drop table t1;
#
# 2) More complex tests for semantics of ALTER TABLE.
#
# 2.a) Check that standalone RENAME KEY works as expected
#      for unique and non-unique indexes.
create table t1 (a int, unique u(a), b int, key k(b));
alter table t1 rename key u to uu;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  UNIQUE KEY `uu` (`a`),
  KEY `k` (`b`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 rename key k to kk;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  UNIQUE KEY `uu` (`a`),
  KEY `kk` (`b`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# 2.b) Check how that this clause can be mixed with other
#      clauses which don't affect key or its columns.
alter table t1 rename key kk to kkk, add column c int;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  `c` int(11) DEFAULT NULL,
  UNIQUE KEY `uu` (`a`),
  KEY `kkk` (`b`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 rename key uu to uuu, add key c(c);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  `c` int(11) DEFAULT NULL,
  UNIQUE KEY `uuu` (`a`),
  KEY `kkk` (`b`),
  KEY `c` (`c`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 rename key kkk to k, drop key uuu;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  `c` int(11) DEFAULT NULL,
  KEY `k` (`b`),
  KEY `c` (`c`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 rename key k to kk, rename to t2;
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  `c` int(11) DEFAULT NULL,
  KEY `kk` (`b`),
  KEY `c` (`c`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# 2.c) Check that this clause properly works even in case
#      when it is mixed with clauses affecting columns in
#      the key renamed.
alter table t2 rename key c to cc, modify column c bigint not null first;
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `c` bigint(20) NOT NULL,
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  KEY `kk` (`b`),
  KEY `cc` (`c`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# Create multi-component key for next example.
alter table t2 add unique u (a, b, c);
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `c` bigint(20) NOT NULL,
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  UNIQUE KEY `u` (`a`,`b`,`c`),
  KEY `kk` (`b`),
  KEY `cc` (`c`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t2 rename key u to uu, drop column b;
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `c` bigint(20) NOT NULL,
  `a` int(11) DEFAULT NULL,
  UNIQUE KEY `uu` (`a`,`c`),
  KEY `cc` (`c`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
drop table t2;
#
# 3) Test coverage for handling of RENAME INDEX clause in
#    various storage engines and using different ALTER
#    algorithm.
#
# 3.a) Test coverage for simple storage engines (MyISAM/Heap).
create table t1 (i int, key k(i)) engine=myisam;
insert into t1 values (1);
create table t2 (i int, key k(i)) engine=memory;
insert into t2 values (1);
# MyISAM and Heap should be able to handle key renaming in-place.
alter table t1 algorithm=inplace, rename key k to kk;
alter table t2 algorithm=inplace, rename key k to kk;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int(11) DEFAULT NULL,
  KEY `kk` (`i`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `i` int(11) DEFAULT NULL,
  KEY `kk` (`i`)
) ENGINE=MEMORY DEFAULT CHARSET=latin1
# So by default in-place algorithm should be chosen.
# (ALTER TABLE should report 0 rows affected).
alter table t1 rename key kk to kkk;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
alter table t2 rename key kk to kkk;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int(11) DEFAULT NULL,
  KEY `kkk` (`i`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `i` int(11) DEFAULT NULL,
  KEY `kkk` (`i`)
) ENGINE=MEMORY DEFAULT CHARSET=latin1
# Copy algorithm should work as well.
alter table t1 algorithm=copy, rename key kkk to kkkk;
alter table t2 algorithm=copy, rename key kkk to kkkk;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int(11) DEFAULT NULL,
  KEY `kkkk` (`i`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `i` int(11) DEFAULT NULL,
  KEY `kkkk` (`i`)
) ENGINE=MEMORY DEFAULT CHARSET=latin1
# When renaming is combined with other in-place operation
# it still works as expected (i.e. works in-place).
alter table t1 algorithm=inplace, rename key kkkk to k, alter column i set default 100;
alter table t2 algorithm=inplace, rename key kkkk to k, alter column i set default 100;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int(11) DEFAULT '100',
  KEY `k` (`i`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `i` int(11) DEFAULT '100',
  KEY `k` (`i`)
) ENGINE=MEMORY DEFAULT CHARSET=latin1
# Combining with non-inplace operation results in the whole ALTER
# becoming non-inplace.
alter table t1 algorithm=inplace, rename key k to kk, add column j int;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY.
alter table t2 algorithm=inplace, rename key k to kk, add column j int;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY.
drop table t1, t2;
# 3.b) Basic tests for InnoDB. More tests can be found in
#      innodb.innodb_rename_index*
create table t1 (i int, key k(i)) engine=innodb;
insert into t1 values (1);
# Basic rename, inplace algorithm should be chosen
alter table t1 algorithm=inplace, rename key k to kk;
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int(11) DEFAULT NULL,
  KEY `kk` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# copy algorithm should work as well.
alter table t1 algorithm=copy, rename key kk to kkk;
affected rows: 1
info: Records: 1  Duplicates: 0  Warnings: 0
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int(11) DEFAULT NULL,
  KEY `kkk` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
drop table t1;
#
# 4) Additional coverage for complex cases in which code
#    in ALTER TABLE comparing old and new table version
#    got confused.
#
# Once InnoDB starts to support in-place index renaming the result
# of below statements should stay the same. Information about
# indexes returned by SHOW CREATE TABLE (from .FRM) and by
# InnoDB (from InnoDB data-dictionary) should be consistent.
#
create table t1 ( a int, b int, c int, d int,
primary key (a), index i1 (b), index i2 (c) ) engine=innodb;
alter table t1 add index i1 (d), rename index i1 to x;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` int(11) DEFAULT NULL,
  `c` int(11) DEFAULT NULL,
  `d` int(11) DEFAULT NULL,
  PRIMARY KEY (`a`),
  KEY `x` (`b`),
  KEY `i2` (`c`),
  KEY `i1` (`d`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
select i.name as k, f.name as c from information_schema.innodb_sys_tables as t,
information_schema.innodb_sys_indexes as i,
information_schema.innodb_sys_fields as f
where t.name='test/t1' and t.table_id = i.table_id and i.index_id = f.index_id
order by k, c;
k	c
i1	d
i2	c
PRIMARY	a
x	b
drop table t1;
create table t1 (a int, b int, c int, d int,
primary key (a), index i1 (b), index i2 (c)) engine=innodb;
alter table t1 add index i1 (d), rename index i1 to i2, drop index i2;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` int(11) DEFAULT NULL,
  `c` int(11) DEFAULT NULL,
  `d` int(11) DEFAULT NULL,
  PRIMARY KEY (`a`),
  KEY `i2` (`b`),
  KEY `i1` (`d`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
select i.name as k, f.name as c from information_schema.innodb_sys_tables as t,
information_schema.innodb_sys_indexes as i,
information_schema.innodb_sys_fields as f
where t.name='test/t1' and t.table_id = i.table_id and i.index_id = f.index_id
order by k, c;
k	c
i1	d
i2	b
PRIMARY	a
drop table t1;
#
# The below ALTER TABLE statement should either drop and recreate key
# under new name, or simply rename it. It should not bring .FRM and
# InnoDB data-dictionary out of sync thus causing asserts.
#
create table t1 (i int, key x(i)) engine=InnoDB;
alter table t1 drop key x, add key X(i), alter column i set default 10;
drop table t1;
#
# Coverage for changes to ALTER TABLE ... IMPORT/DISCARD TABLESPACE
# code introduced by WL#6671 "Improve scalability by not using
# thr_lock.c locks for InnoDB tables".
#
# Check that ALTER TABLE ... IMPORT/DISCARD TABLESPACE acquires X
# metadata lock on the table even when executed under LOCK TABLES.
#
# Suppress error messages which will be generated by IMPORT TABLESPACE
call mtr.add_suppression("InnoDB: Trying to import a tablespace, but could not open the tablespace file");
call mtr.add_suppression("InnoDB: Operating system error number 2 in a file operation.");
call mtr.add_suppression("InnoDB: The error means the system cannot find the path specified.");
CREATE TABLE t1 (i INT) ENGINE=InnoDB;
#
# 1) Check that ALTER TABLE ... IMPORT/DISCARD TABLESPACE on
#    base table acquire X lock (when not under LOCK TABLES).
#
connect con1, localhost, root;
# Acquire S lock on table 't1'.
HANDLER t1 OPEN;
connect con2, localhost, root;
# Sending:
ALTER TABLE t1 DISCARD TABLESPACE;
connection default;
# Wait until ALTER TABLE is blocked since it tries to acquire X lock.
connection con1;
# Unblock ALTER TABLE DISCARD
HANDLER t1 CLOSE;
connection con2;
# Reaping ALTER TABLE DISCARD
connection con1;
# Acquire S lock on table 't1'.
HANDLER t1 OPEN;
connection con2;
# Sending:
ALTER TABLE t1 IMPORT TABLESPACE;
connection default;
# Wait until ALTER TABLE is blocked since it tries to acquire X lock.
connection con1;
# Unblock ALTER TABLE IMPORT
HANDLER t1 CLOSE;
connection con2;
# Reaping ALTER TABLE IMPORT
# It should fail as no tablespace was copied after DISCARD.
ERROR HY000: Tablespace is missing for table `test`.`t1`.
connection default;
DROP TABLE t1;
#
# 2) ALTER TABLE ... IMPORT/DISCARD TABLESPACE on temporary table
#    should not try to acquire X metadata lock on base table.
#
CREATE TABLE t1 (i INT) ENGINE=InnoDB;
connection con1;
# Acquire S lock on table 't1'.
HANDLER t1 OPEN;
connection con2;
CREATE TEMPORARY TABLE t1 (j INT) ENGINE=InnoDB;
# Both DISCARD and IMPORT on temporary table should fail without
# acquiring any locks and blocking.
ALTER TABLE t1 DISCARD TABLESPACE;
ERROR HY000: Cannot DISCARD/IMPORT tablespace associated with temporary table
ALTER TABLE t1 IMPORT TABLESPACE;
ERROR HY000: Cannot DISCARD/IMPORT tablespace associated with temporary table
DROP TEMPORARY TABLE t1;
#
# 3) Check that ALTER TABLE ... IMPORT/DISCARD TABLESPACE on
#    base table under LOCK TABLES acquire X lock.
#
connection con2;
LOCK TABLES t1 WRITE;
# Sending:
ALTER TABLE t1 DISCARD TABLESPACE;
connection default;
# Wait until ALTER TABLE is blocked since it tries to acquire X lock.
connection con1;
# Unblock ALTER TABLE DISCARD
HANDLER t1 CLOSE;
connection con2;
# Reaping ALTER TABLE DISCARD
connection con1;
# Acquire S lock on table 't1'.
HANDLER t1 OPEN;
connection con2;
# Sending:
ALTER TABLE t1 IMPORT TABLESPACE;
connection default;
# Wait until ALTER TABLE is blocked since it tries to acquire X lock.
connection con1;
# Unblock ALTER TABLE IMPORT
HANDLER t1 CLOSE;
connection con2;
# Reaping ALTER TABLE IMPORT
# It should fail as no tablespace was copied after DISCARD.
ERROR HY000: Tablespace is missing for table `test`.`t1`.
UNLOCK TABLES;
connection default;
DROP TABLE t1;
#
# 4) Under LOCK TABLES, ALTER TABLE ... IMPORT/DISCARD TABLESPACE on
#    temporary table should not try to acquire X metadata lock on base
#    table.
#
CREATE TABLE t1 (i INT) ENGINE=InnoDB;
connection con1;
# Acquire S lock on table 't1'.
HANDLER t1 OPEN;
connection con2;
CREATE TEMPORARY TABLE t1 (j INT) ENGINE=InnoDB;
LOCK TABLES t1 WRITE;
# Both DISCARD and IMPORT on temporary table should fail without
# acquiring any locks and blocking.
ALTER TABLE t1 DISCARD TABLESPACE;
ERROR HY000: Cannot DISCARD/IMPORT tablespace associated with temporary table
ALTER TABLE t1 IMPORT TABLESPACE;
ERROR HY000: Cannot DISCARD/IMPORT tablespace associated with temporary table
UNLOCK TABLES;
DROP TEMPORARY TABLE t1;
connection con1;
HANDLER t1 CLOSE;
#
# Clean-up.
#
disconnect con1;
disconnect con2;
connection default;
DROP TABLE t1;
SET sql_mode = default;
#
# BUG 19779365: INDEX COMMENT IN ADD INDEX IS IGNORED.
#
# After the patch, the alter table reflects the new
# index comment or the lack of comment for the indexes.
CREATE TABLE t1(fld1 int, key key1(fld1));
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE			YES
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1) COMMENT 'test';
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		test	YES
DROP TABLE t1;
CREATE TABLE t1(fld1 int, key key1(fld1) COMMENT 'test');
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		test	YES
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1);
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE			YES
DROP TABLE t1;
CREATE TABLE t1(fld1 int, key key1(fld1) COMMENT 'test');
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		test	YES
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1) COMMENT 'success';
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		success	YES
DROP TABLE t1;
CREATE TABLE t1(fld1 int, key key1(fld1) COMMENT 'old comment');
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		old comment	YES
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1) COMMENT 'new comment';
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		new comment	YES
DROP TABLE t1;
#
# Bug#19635706
# Verify that it is possible to add a unique key to a not-NULL POINT 
# column and that this key is promoted to primary key
# 
CREATE TABLE t1(a INT NOT NULL, b POINT NOT NULL) ENGINE=INNODB;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` point NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
ALTER TABLE t1 ADD UNIQUE INDEX (b);
# Note that SHOW CREATE TABLE does not list b as a primary key,
# even though it was promoted. This appears to be the case also
# for other column types.
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` point NOT NULL,
  UNIQUE KEY `b` (`b`(25))
) ENGINE=InnoDB DEFAULT CHARSET=latin1
ALTER TABLE t1 ADD UNIQUE INDEX (a);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` point NOT NULL,
  UNIQUE KEY `b` (`b`(25)),
  UNIQUE KEY `a` (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# Verify that the expected indices have been created by Innodb
SELECT T.NAME AS TABLE_NAME, I.NAME AS INDEX_NAME,
CASE I.TYPE 
WHEN 0 THEN 'Secondary'
            WHEN 1 THEN 'Clustered'
            WHEN 2 THEN 'Unique'
            WHEN 3 THEN 'Primary'
            WHEN 32 THEN 'Full text'
            WHEN 64 THEN 'Spatial'
            ELSE 'Unknown'
       END AS INDEX_TYPE,
F.NAME AS FIELD_NAME, F.POS AS FIELD_POS FROM
INFORMATION_SCHEMA.INNODB_SYS_TABLES AS T JOIN
INFORMATION_SCHEMA.INNODB_SYS_INDEXES AS I JOIN
INFORMATION_SCHEMA.INNODB_SYS_FIELDS AS F
ON I.INDEX_ID = F.INDEX_ID AND I.TABLE_ID = T.TABLE_ID
WHERE T.NAME = 'test/t1';
TABLE_NAME	INDEX_NAME	INDEX_TYPE	FIELD_NAME	FIELD_POS
test/t1	b	Primary	b	0
test/t1	a	Unique	a	0
DROP TABLE t1;
#
# BUG#16886196 - ALTER TABLE FAILS TO CONVERT TO PREFIX INDEX IN
#                ALTER_COLUMN_EQUAL_PACK_LENGTH
SET @orig_sql_mode = @@sql_mode;
SET sql_mode= '';
Warnings:
Warning	3090	Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
# Test with '767' as index size limit.
CREATE TABLE t1(fld1 VARCHAR(767), KEY a(fld1)) ENGINE= INNODB
ROW_FORMAT=COMPACT;
ALTER TABLE t1 CHANGE fld1 fld1 VARCHAR(768), ALGORITHM= INPLACE;
ERROR HY000: Index column size too large. The maximum column size is 767 bytes.
DROP TABLE t1;
CREATE TABLE t1(fld1 VARCHAR(3072), KEY a(fld1)) ENGINE= INNODB,
ROW_FORMAT=DYNAMIC;
INSERT INTO t1 VALUES('a');
ALTER TABLE t1 CHANGE fld1 fld1 VARCHAR(3073), ALGORITHM= INPLACE;
Warnings:
Warning	1071	Specified key was too long; max key length is 3072 bytes
# Without patch, the below statement will assert in a debug build.
SELECT COUNT(*) FROM t1 WHERE fld1= 'a';
COUNT(*)
1
# Cleanup.
DROP TABLE t1;
# Test with innodb prefix indexes up to 3072 bytes.
CREATE TABLE t1(fld1 VARCHAR(3072), KEY a(fld1)) ENGINE= INNODB
ROW_FORMAT= DYNAMIC;
INSERT INTO t1 VALUES('a');
ALTER TABLE t1 CHANGE fld1 fld1 VARCHAR(3073), ALGORITHM= INPLACE;
Warnings:
Warning	1071	Specified key was too long; max key length is 3072 bytes
# Without patch, the below statement will assert in a debug build.
SELECT COUNT(*) FROM t1 WHERE fld1= 'a';
COUNT(*)
1
# Cleanup.
DROP TABLE t1;
SET sql_mode= @orig_sql_mode;
Warnings:
Warning	3090	Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
#
#BUG#20106553: ALTER TABLE WHICH CHANGES INDEX COMMENT IS NOT
#              LONGER INPLACE/FAST OPERATION.
#Without the patch, the ALTER TABLE to change the index
#comment using INPLACE algorithm reports an error.
CREATE TABLE t1(fld1 int, key key1(fld1)) ENGINE= INNODB;
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE			YES
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1) COMMENT 'test',
ALGORITHM= INPLACE;
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		test	YES
DROP TABLE t1;
CREATE TABLE t1(fld1 int, key key1(fld1) COMMENT 'test') ENGINE= MyISAM;
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	Visible
t1	1	key1	1	fld1	A	NULL	NULL	NULL	YES	BTREE		test	YES
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1), ALGORITHM=INPLACE;
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	Visible
t1	1	key1	1	fld1	A	NULL	NULL	NULL	YES	BTREE			YES
DROP TABLE t1;
CREATE TABLE t1(fld1 int, key key1(fld1) COMMENT 'test') ENGINE= INNODB;
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		test	YES
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1) COMMENT 'success',
ALGORITHM= INPLACE;
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		success	YES
DROP TABLE t1;
CREATE TABLE t1(fld1 int, key key1(fld1) COMMENT 'old comment') ENGINE=MyISAM;
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	Visible
t1	1	key1	1	fld1	A	NULL	NULL	NULL	YES	BTREE		old comment	YES
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1) COMMENT 'new comment',
ALGORITHM= INPLACE;
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	Visible
t1	1	key1	1	fld1	A	NULL	NULL	NULL	YES	BTREE		new comment	YES
DROP TABLE t1;
#Test cases with merge threshold specified in the index comment.
CREATE TABLE t1(fld1 int, key key1(fld1)) ENGINE=INNODB;
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE			YES
SELECT MERGE_THRESHOLD from INFORMATION_SCHEMA.INNODB_SYS_INDEXES WHERE NAME='key1';
MERGE_THRESHOLD
50
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1) COMMENT
'MERGE_THRESHOLD=45';
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		MERGE_THRESHOLD=45	YES
SELECT MERGE_THRESHOLD from INFORMATION_SCHEMA.INNODB_SYS_INDEXES WHERE NAME='key1';
MERGE_THRESHOLD
45
DROP TABLE t1;
CREATE TABLE t1(fld1 int, key key1(fld1) COMMENT 'MERGE_THRESHOLD=40')
ENGINE=INNODB;
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		MERGE_THRESHOLD=40	YES
SELECT MERGE_THRESHOLD from INFORMATION_SCHEMA.INNODB_SYS_INDEXES WHERE NAME='key1';
MERGE_THRESHOLD
40
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1);
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE			YES
SELECT MERGE_THRESHOLD from INFORMATION_SCHEMA.INNODB_SYS_INDEXES WHERE NAME='key1';
MERGE_THRESHOLD
50
DROP TABLE t1;
CREATE TABLE t1(fld1 int, key key1(fld1) COMMENT 'MERGE_THRESHOLD=40')
ENGINE=INNODB;
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		MERGE_THRESHOLD=40	YES
SELECT MERGE_THRESHOLD from INFORMATION_SCHEMA.INNODB_SYS_INDEXES WHERE NAME='key1';
MERGE_THRESHOLD
40
ALTER TABLE t1 DROP INDEX key1, ADD INDEX key1(fld1) COMMENT
'MERGE_THRESHOLD=45';
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	Visible
t1	1	key1	1	fld1	A	0	NULL	NULL	YES	BTREE		MERGE_THRESHOLD=45	YES
SELECT MERGE_THRESHOLD from INFORMATION_SCHEMA.INNODB_SYS_INDEXES WHERE NAME='key1';
MERGE_THRESHOLD
45
DROP TABLE t1;
#
# Bug#20748660 THD->MDL_CONTEXT.OWNS_EQUAL_OR_STRONGER_LOCK | CREATE_INFO->TABLESPACE
#
# A failing DISCARD/IMPORT TABLESPACE may leave the flag THD::tablespace_op
# in an incorrect state, causing a succeeding statement to fail.

# Create a tablespace with a table.
CREATE TABLESPACE s ADD DATAFILE 's.ibd' ENGINE InnoDB;
CREATE TABLE t (i int) TABLESPACE s ENGINE InnoDB;
# The following statent will fail because the table is not partitioned.
# Without the fix, the THD::tablespace_op flag will be left set.
ALTER TABLE t DISCARD PARTITION p TABLESPACE;
ERROR HY000: Partition management on a not partitioned table is not possible
# Without the patch, this statement will inherit the tablespace_op flag
# from the previous statement, causing the statement below to fail due
# to not acquiring the required MDL lock.
ALTER TABLE t TABLESPACE s;
# Drop table and tablespace.
DROP TABLE t;
DROP TABLESPACE s ENGINE InnoDB;
#
# Bug#20279241 - ALTER TABLE ... CHARACTER SET UTF8, CONVERT TO
#                CHARACTER SET LATIN1 SHOULD FAIL
#
CREATE TABLE t1 (f1 INT);
# Case 1: Alter table with CHARACTER SET X, CHARACTER SET X
#         ALTER table operation should pass.
ALTER TABLE t1 CHARACTER SET utf8, CHARACTER SET utf8;
# Case 2: Alter table with CHARACTER SET X, CONVERT TO CHARACTER SET X
#         ALTER table operation should pass.
ALTER TABLE t1 CHARACTER SET utf8, CONVERT TO CHARACTER SET utf8;
# Case 3: Alter table with CONVERT TO CHARACTER SET X, CHARACTER SET X
#         ALTER table operation should pass.
ALTER TABLE t1 CONVERT TO CHARACTER SET utf8, CHARACTER SET utf8;
# Case 4: Alter table with CONVERT TO CHARACTER SET X, CONVERT TO CHARACTER SET X
#         ALTER table operation should pass.
ALTER TABLE t1 CONVERT TO CHARACTER SET utf8, CONVERT TO CHARACTER SET utf8;
# Case 5: Alter table with CHARACTER SET X, CONVERT TO CHARACTER SET Y
#         Alter table operations should fail with an error "ER_CONFLICTING_DECLARATIONS".
ALTER TABLE t1 CHARACTER SET utf8, CONVERT TO CHARACTER SET latin1;
ERROR HY000: Conflicting declarations: 'CHARACTER SET utf8' and 'CHARACTER SET latin1'
# Case 6: Alter table with CONVERT TO CHARACTER SET X, CHARACTER SET Y
#         Alter table operations should fail with an error "ER_CONFLICTING_DECLARATIONS".
ALTER TABLE t1 CONVERT TO CHARACTER SET utf8, CHARACTER SET latin1;
ERROR HY000: Conflicting declarations: 'CHARACTER SET utf8' and 'CHARACTER SET latin1'
# Case 7: Alter table with CONVERT TO CHARACTER SET X, CONVERT TO CHARACTER SET Y
#         Alter table operations should fail with an error "ER_CONFLICTING_DECLARATIONS".
ALTER TABLE t1 CONVERT TO CHARACTER SET utf8, CONVERT TO CHARACTER SET latin1;
ERROR HY000: Conflicting declarations: 'CHARACTER SET utf8' and 'CHARACTER SET latin1'
# Case 8: Alter table with CHARACTER SET X COLLATE INCORRECT_COLLATION_NAME
#         Alter table operation should fail with an error "ER_COLLATION_CHARSET_MISMATCH"
ALTER TABLE t1 CHARACTER SET utf8 COLLATE latin1_danish_ci;
ERROR 42000: COLLATION 'latin1_danish_ci' is not valid for CHARACTER SET 'utf8'
# Case 9: Alter table with CONVERT TO CHARACTER SET X COLLATE INCORRECT_COLLATION_NAME
#         Alter table operation should fail with an error "ER_COLLATION_CHARSET_MISMATCH"
ALTER TABLE t1 CONVERT TO CHARACTER SET utf8 COLLATE latin1_danish_ci;
ERROR 42000: COLLATION 'latin1_danish_ci' is not valid for CHARACTER SET 'utf8'
# Case 10: Alter table with CHARACTER SET X, CONVERT TO CHARACTER SET Y COLLATE INCORRECT_COLLATION_NAME
#          Alter table operation should fail with an error "ER_COLLATION_CHARSET_MISMATCH"
ALTER TABLE t1 CHARACTER SET latin1, CONVERT TO CHARACTER SET utf8 COLLATE latin1_danish_ci;
ERROR 42000: COLLATION 'latin1_danish_ci' is not valid for CHARACTER SET 'utf8'
DROP TABLE t1;
#
# BUG#20106837: ALTER TABLE WHICH DROPS AND ADDS THE SAME FULLTEXT
#               INDEX IS NOT INPLACE/FAST.
CREATE TABLE t1(fld1 varchar(200), FULLTEXT(fld1)) ENGINE=MyISAM;
INSERT INTO t1 VALUES('ABCD');
#Without patch, it was not fast a INPLACE ALTER.
ALTER TABLE t1 DROP INDEX fld1, ADD FULLTEXT INDEX fld1(fld1);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
#Without patch, reports an error 'ER_ALTER_OPERATION_NOT_SUPPORTED'.
ALTER TABLE t1 ALGORITHM=INPLACE, DROP INDEX fld1,
ADD FULLTEXT INDEX fld1(fld1);
DROP TABLE t1;
#Test with InnoDB engine.
CREATE TABLE t1(fld1 varchar(200), FULLTEXT(fld1)) ENGINE=INNODB;
INSERT INTO t1 VALUES('ABCD');
#Without patch, it was not fast a INPLACE ALTER.
ALTER TABLE t1 DROP INDEX fld1, ADD FULLTEXT INDEX fld1(fld1);
affected rows: 0
info: Records: 0  Duplicates: 0  Warnings: 0
#Without patch, reports an error 'ER_ALTER_OPERATION_NOT_SUPPORTED'.
ALTER TABLE t1 ALGORITHM=INPLACE, DROP INDEX fld1,
ADD FULLTEXT INDEX fld1(fld1);
DROP TABLE t1;
#
# Bug#20146455: FIND_KEY_CI RETURNS NULL, CAUSES CRASH IN
#               FILL_ALTER_INPLACE_INFO
#
CREATE TABLE t1 (a INT PRIMARY KEY, b INT,
FOREIGN KEY (b) REFERENCES t1(a)) ENGINE= MyISAM;
ALTER TABLE t1 RENAME INDEX b TO w, ADD FOREIGN KEY (b) REFERENCES t1(a);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` int(11) DEFAULT NULL,
  PRIMARY KEY (`a`),
  KEY `w` (`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1 (a INT PRIMARY KEY, b INT,
FOREIGN KEY (b) REFERENCES t1(a)) ENGINE= InnoDB;
ALTER TABLE t1 RENAME INDEX b TO w, ADD FOREIGN KEY (b) REFERENCES t1(a);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` int(11) DEFAULT NULL,
  PRIMARY KEY (`a`),
  KEY `w` (`b`),
  CONSTRAINT `t1_ibfk_1` FOREIGN KEY (`b`) REFERENCES `t1` (`a`),
  CONSTRAINT `t1_ibfk_2` FOREIGN KEY (`b`) REFERENCES `t1` (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
#
# Bug#22017616: ASSERTION FAILED: TABLE_SHARE->IS_MISSING_PRIMARY_KEY()
# == M_PREBUILT->CLUST_IND
#
# Ensure that adding indexes with virtual columns are not promoted to
# primary keys
#
# Base line with normal column - should be promoted
CREATE TABLE t0(a INT NOT NULL) ENGINE=INNODB;
ALTER TABLE t0 ADD UNIQUE INDEX (a);
# Case a: Create table with virtual unique not null column
CREATE TABLE t1(a POINT GENERATED ALWAYS AS (POINT(1,1)) VIRTUAL UNIQUE NOT NULL) ENGINE=INNODB;
SELECT * FROM t1;
a
# Case b: Create table with index on virtual point column
CREATE TABLE t2(a POINT GENERATED ALWAYS AS (POINT(1,1)) VIRTUAL NOT NULL, UNIQUE INDEX no_pk(a(1))) ENGINE=INNODB;
SELECT * FROM t2;
a
# Case c: Add unique index on virtual point column
CREATE TABLE t3(a POINT GENERATED ALWAYS AS (POINT(1,1)) VIRTUAL NOT NULL)
ENGINE=INNODB;
ALTER TABLE t3 ADD UNIQUE INDEX (a(1));
SELECT * FROM t3;
a
# Case d: Add unique index on virtual blob column
CREATE TABLE t4 (a BLOB, b BLOB GENERATED ALWAYS AS (a) VIRTUAL NOT NULL) ENGINE=INNODB;
ALTER TABLE t4 ADD UNIQUE INDEX (b(1));
SELECT * FROM t4;
a	b
# Query I_S to verify that 'a' is promoted to pk only when it
# isn't virtual
SELECT T.NAME AS TABLE_NAME, I.NAME AS INDEX_NAME,
CASE (I.TYPE & 3)
WHEN 3 THEN "yes"
            ELSE "no" END AS IS_PRIMARY_KEY,
F.NAME AS FIELD_NAME, F.POS AS FIELD_POS FROM
INFORMATION_SCHEMA.INNODB_SYS_TABLES AS T JOIN
INFORMATION_SCHEMA.INNODB_SYS_INDEXES AS I JOIN
INFORMATION_SCHEMA.INNODB_SYS_FIELDS AS F
ON I.INDEX_ID = F.INDEX_ID AND I.TABLE_ID = T.TABLE_ID
WHERE T.NAME LIKE 'test/%';
TABLE_NAME	INDEX_NAME	IS_PRIMARY_KEY	FIELD_NAME	FIELD_POS
test/t0	a	yes	a	0
test/t1	a	no	a	0
test/t2	no_pk	no	a	0
test/t3	a	no	a	0
test/t4	b	no	b	0
DROP TABLE t0;
DROP TABLE t1;
DROP TABLE t2;
DROP TABLE t3;
DROP TABLE t4;
#
# Bug #22141913  ASSERTION: !"INVALID KEY_PART->FIELDNR
# FILL_DD_INDEX_ELEMENTS_FROM_KEY_PARTS
#
CREATE TABLE t (a TIMESTAMP(1) GENERATED ALWAYS AS (1) VIRTUAL,
b INT GENERATED ALWAYS AS (1) VIRTUAL
) ENGINE=INNODB;
# The below ALTER asserts without the fix.
ALTER TABLE t ADD  INDEX (b);
ERROR 42000: Invalid default value for 'a'
DROP TABLE t;
#
# Bug#21345391: ALTER TABLE ... CONVERT TO CHARACTER SET NOT EFFECT
#               AND REMAIN A TEMP TABLE
CREATE TABLE t1 (fld1 INT PRIMARY KEY) ENGINE = INNODB CHARACTER SET gbk;
ALTER TABLE t1 CONVERT TO CHARACTER SET UTF8, ALGORITHM = INPLACE;
# Without fix, the CHARSET SET for table remains gbk.
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `fld1` int(11) NOT NULL,
  PRIMARY KEY (`fld1`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
# Without fix, the temporary .frm file is not cleaned up.
DROP TABLE t1;
# Test cases added for coverage.
# Reports an error for tables containing datatypes supporting
# characters.
CREATE TABLE t1 (fld1 CHAR(10) PRIMARY KEY) ENGINE = INNODB CHARACTER SET gbk;
ALTER TABLE t1 CONVERT TO CHARACTER SET UTF8, ALGORITHM = INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported. Reason: Cannot change column type INPLACE. Try ALGORITHM=COPY.
DROP TABLE t1;
# ALTER TABLE, CHARACTER SET operation.
CREATE TABLE t1 (fld1 INT PRIMARY KEY, fld2 CHAR(10)) ENGINE = INNODB
CHARACTER SET gbk;
ALTER TABLE t1 CHARACTER SET UTF8, ALGORITHM = INPLACE;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `fld1` int(11) NOT NULL,
  `fld2` char(10) CHARACTER SET gbk DEFAULT NULL,
  PRIMARY KEY (`fld1`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
DROP TABLE t1;
#
# Bug#22227958: ASSERT IN DD::FILL_DD_TABLE_FROM_CREATE_INFO, DDL
#
# Verify that it is possible to set conflicting values for PACK_KEYS,
# STATS_PERSISTENT CHECKSUM and DELAY_KEY_WRITE
# The last value set should be displayed by SHOW CREATE TABLE.
# Create table with conflicting values
CREATE TABLE t1(i INT) ENGINE=INNODB PACK_KEYS=0 PACK_KEYS=1
STATS_PERSISTENT=0 STATS_PERSISTENT=1 CHECKSUM=0 CHECKSUM=1
DELAY_KEY_WRITE=0 DELAY_KEY_WRITE=1;
# Should show PACK_KEYS=1 STATS_PERSISTENT=1
# CHECKSUM=1 DELAY_KEY_WRITE=1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1 PACK_KEYS=1 STATS_PERSISTENT=1 CHECKSUM=1 DELAY_KEY_WRITE=1
# Alter table with conflicting values
ALTER TABLE t1 PACK_KEYS=1 PACK_KEYS=0 STATS_PERSISTENT=1 STATS_PERSISTENT=0 CHECKSUM=1 CHECKSUM=0 DELAY_KEY_WRITE=1 DELAY_KEY_WRITE=0;
# Should show PACK_KEYS=0 STATS_PERSISTENT=0 (0 is default for CHECKSUM and DELAY_KEY_WRITE)
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1 PACK_KEYS=0 STATS_PERSISTENT=0
DROP TABLE t1;
#
# Bug#22740093: ERROR 1071 (42000): SPECIFIED KEY WAS TOO LONG
#               ERROR WHILE DROPPING INDEX IN 5.7
#
CREATE TABLE t1(id INT PRIMARY KEY,
name TINYTEXT,
KEY nameloc (name(64))
) DEFAULT CHARSET=utf8mb4;
ERROR 42000: Specified key was too long; max key length is 255 bytes
CREATE TABLE t1(id INT PRIMARY KEY,
name TINYTEXT,
KEY nameloc (name(63))
) DEFAULT CHARSET=utf8mb4;
ALTER TABLE t1 FORCE;
ALTER TABLE t1 ADD INDEX idx (name(64), id);
ERROR 42000: Specified key was too long; max key length is 255 bytes
ALTER TABLE t1 ADD INDEX idx (name(63), id);
DROP TABLE t1;
CREATE TABLE t1(id INT PRIMARY KEY,
name TEXT,
KEY nameloc (name(64))
) DEFAULT CHARSET=utf8mb4;
ALTER TABLE t1 MODIFY COLUMN name TINYTEXT;
ERROR 42000: Specified key was too long; max key length is 255 bytes
DROP TABLE t1;
#
# BUG#16888677: OUT OF RANGE VALUE ACCEPTED FOR DATETIME COLUMN IN
#               ALTER TABLE...ADD COLUMN
SET @saved_sql_mode = @@session.sql_mode;
# Test case with no SQL_MODE enabled.
SET SESSION sql_mode= '';
Warnings:
Warning	3090	Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
CREATE TABLE t1(fld1 DATE NOT NULL) ENGINE= INNODB;
INSERT INTO t1 VALUES('2000-01-01');
# No warnings or error is reported
ALTER TABLE t1 ADD COLUMN fld2 DATETIME NOT NULL, ALGORITHM=INPLACE;
ALTER TABLE t1 ADD COLUMN fld3 DATETIME NOT NULL, ALGORITHM=COPY;
DROP TABLE t1;
# Test case with strict mode enabled.
SET SESSION sql_mode= 'STRICT_ALL_TABLES';
Warnings:
Warning	3135	'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release.
CREATE TABLE t1(fld1 DATE NOT NULL) ENGINE= INNODB;
INSERT INTO t1 VALUES('2000-01-01');
# No warnings or error is reported
ALTER TABLE t1 ADD COLUMN fld2 DATETIME NOT NULL, ALGORITHM=INPLACE;
ALTER TABLE t1 ADD COLUMN fld3 DATETIME NOT NULL, ALGORITHM=COPY;
DROP TABLE t1;
# Test case with 'NO_ZERO_DATE' enabled.
SET SESSION sql_mode= 'NO_ZERO_DATE';
Warnings:
Warning	3135	'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release.
CREATE TABLE t1(fld1 DATE NOT NULL) ENGINE= INNODB;
INSERT INTO t1 VALUES('2000-01-01');
# Warnings are reported after patch.
ALTER TABLE t1 ADD COLUMN fld2 DATETIME NOT NULL, ALGORITHM=INPLACE;
Warnings:
Warning	1292	Incorrect datetime value: '0000-00-00 00:00:00' for column 'fld2' at row 1
ALTER TABLE t1 ADD COLUMN fld3 DATETIME NOT NULL, ALGORITHM=COPY;
Warnings:
Warning	1264	Out of range value for column 'fld2' at row 1
DROP TABLE t1;
# Test case with both 'NO_ZERO_DATE and strict mode' enabled.
SET SESSION sql_mode= @saved_sql_mode;
Warnings:
Warning	3090	Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
CREATE TABLE t1(fld1 DATE NOT NULL) ENGINE= INNODB;
INSERT INTO t1 VALUES('2000-01-01');
# Without patch, the following statement succeeds.
ALTER TABLE t1 ADD COLUMN fld2 DATETIME NOT NULL, ALGORITHM=INPLACE;
ERROR 22007: Incorrect datetime value: '0000-00-00 00:00:00' for column 'fld2' at row 1
ALTER TABLE t1 ADD COLUMN fld2 DATETIME NOT NULL, ALGORITHM=COPY;
ERROR 22007: Incorrect datetime value: '0000-00-00 00:00:00' for column 'fld2' at row 1
TRUNCATE TABLE t1;
# Operation below succeeds, since the table has no records.
ALTER TABLE t1 ADD COLUMN fld4 DATETIME NOT NULL, ALGORITHM=INPLACE;
DROP TABLE t1;
#
# Additional coverage for WL#7743 "New data dictionary: changes to
# DDL-related parts of SE API". Check that ALTER TABLE INPLACE with
# RENAME TO clause correctly handles FKs and triggers.
#
CREATE TABLE t1 (pk INT PRIMARY KEY) ENGINE=InnoDB;
CREATE TABLE t2 (fk INT, FOREIGN KEY (fk) REFERENCES t1 (pk)) ENGINE=InnoDB;
ALTER TABLE t2 ADD COLUMN j INT, RENAME TO t3, ALGORITHM=INPLACE;
SHOW CREATE TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `fk` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  KEY `fk` (`fk`),
  CONSTRAINT `t3_ibfk_1` FOREIGN KEY (`fk`) REFERENCES `t1` (`pk`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t3;
CREATE TRIGGER t1_bi BEFORE INSERT ON t1 FOR EACH ROW SET @a:=0;
ALTER TABLE t1 ADD COLUMN j INT, RENAME TO t4, ALGORITHM=INPLACE;
SELECT trigger_name, event_object_schema, event_object_table, action_statement
FROM information_schema.triggers WHERE event_object_schema = 'test';
TRIGGER_NAME	EVENT_OBJECT_SCHEMA	EVENT_OBJECT_TABLE	ACTION_STATEMENT
t1_bi	test	t4	SET @a:=0
DROP TABLE t4;

Bug#25779239 ALTER TABLE FAILS WHEN DEFAULT
CHARACTER SET CHANGES TO UTF8MB4

CREATE TABLE t1(
i INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY) charset latin1;
ALTER TABLE t1
DROP i,
ADD i INT UNSIGNED NOT NULL AUTO_INCREMENT,
AUTO_INCREMENT = 1;
DROP TABLE t1;
CREATE TABLE t1(
i INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY) charset utf8mb4;
ALTER TABLE t1
DROP i,
ADD i INT UNSIGNED NOT NULL AUTO_INCREMENT,
AUTO_INCREMENT = 1;
DROP TABLE t1;