create table t1 (a int not null primary key, b int, c varchar(80), e enum('a','b')) engine=myisam;
insert into t1 (a) values (1),(2),(3);
alter online table t1 modify b int default 5, alter c set default 'X';
alter online table t1 change b new_name int;
alter online table t1 modify e enum('a','b','c');
alter online table t1 comment "new comment";
alter table t1 add constraint q check (a > 0);
alter online table t1 drop constraint q;
alter online table t1 algorithm=INPLACE, lock=NONE;
alter online table t1;
alter table t1 algorithm=INPLACE;
alter table t1 lock=NONE;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `new_name` int(11) DEFAULT NULL,
  `c` varchar(80) DEFAULT 'X',
  `e` enum('a','b','c') DEFAULT NULL,
  PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci COMMENT='new comment'
drop table t1;
create temporary table t1 (a int not null primary key, b int, c varchar(80), e enum('a','b'));
insert into t1 (a) values (1),(2),(3);
alter online table t1 modify b int default 5, alter c set default 'X';
alter online table t1 change b new_name int;
alter online table t1 modify e enum('a','b','c');
alter online table t1 comment "new comment";
alter online table t1 rename to t2;
show create table t2;
Table	Create Table
t2	CREATE TEMPORARY TABLE `t2` (
  `a` int(11) NOT NULL,
  `new_name` int(11) DEFAULT NULL,
  `c` varchar(80) DEFAULT 'X',
  `e` enum('a','b','c') DEFAULT NULL,
  PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci COMMENT='new comment'
drop table t2;
create table t1 (a int not null primary key, b int, c varchar(80), e enum('a','b')) engine=aria;
insert into t1 (a) values (1),(2),(3);
alter online table t1 modify b int default 5;
alter online table t1 change b new_name int;
alter online table t1 modify e enum('a','b','c');
alter online table t1 comment "new comment";
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `new_name` int(11) DEFAULT NULL,
  `c` varchar(80) DEFAULT NULL,
  `e` enum('a','b','c') DEFAULT NULL,
  PRIMARY KEY (`a`)
) ENGINE=Aria DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci PAGE_CHECKSUM=1 COMMENT='new comment'
alter online table t1 page_checksum=1;
alter online table t1 page_checksum=0;
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
drop table t1;
create table t1 (a int not null primary key, b int, c varchar(80), e enum('a','b'));
insert into t1 (a) values (1),(2),(3);
alter online table t1 drop column b, add b int;
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 modify b bigint;
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 modify e enum('c','a','b');
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 modify c varchar(50);
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 modify c varchar(100);
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 add f int;
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 engine=memory;
ERROR 0A000: LOCK=NONE is not supported. Reason: COPY algorithm requires a lock. Try LOCK=SHARED
alter online table t1 rename to t2;
ERROR 0A000: LOCK=NONE/SHARED is not supported for this operation. Try LOCK=EXCLUSIVE
alter online table t1 checksum=1;
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 add constraint check (b > 0);
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter table t1 engine=innodb;
alter table t1 add index (b);
alter online table t1 add index c (c);
alter online table t1 drop index b;
alter online table t1 comment "new comment";
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` int(11) DEFAULT NULL,
  `c` varchar(80) DEFAULT NULL,
  `e` enum('a','b') DEFAULT NULL,
  PRIMARY KEY (`a`),
  KEY `c` (`c`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci COMMENT='new comment'
drop table t1;
create temporary table t1 (a int not null primary key, b int, c varchar(80), e enum('a','b'));
insert into t1 (a) values (1),(2),(3);
alter online table t1 drop column b, add b int;
alter online table t1 modify b bigint;
alter online table t1 modify e enum('c','a','b');
alter online table t1 modify c varchar(50);
alter online table t1 modify c varchar(100);
alter online table t1 add f int;
alter online table t1 engine=memory;
alter table t1 engine=innodb;
alter table t1 add index (b);
alter online table t1 add index c (c);
alter online table t1 drop index b;
drop table t1;
create table t1 (a int not null primary key, b int, c varchar(80));
create table t2 (a int not null primary key, b int, c varchar(80));
create table t3 (a int not null primary key, b int, c varchar(80)) engine=merge UNION=(t1);
alter online table t3 union=(t1,t2);
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=EXCLUSIVE
drop table t1,t2,t3;
create table t1 (i int) partition by hash(i) partitions 2;
alter online table t1 comment 'test';
drop table t1;
create table t1 (a int);
alter online table t1 modify a int comment 'test';
drop table t1;
create table t1 (a int) engine=innodb;
alter online table t1 modify a int comment 'test';
drop table t1;
create table t1 (a int) partition by hash(a) partitions 2;
alter online table t1 modify a int comment 'test';
drop table t1;
#
# MDEV-8948 ALTER ... INPLACE does work for BINARY, BLOB
#
CREATE TABLE t1 (a BINARY(10));
ALTER TABLE t1 MODIFY a BINARY(10), ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a VARBINARY(10));
ALTER TABLE t1 MODIFY a VARBINARY(10), ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a TINYBLOB);
ALTER TABLE t1 MODIFY a TINYBLOB, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a MEDIUMBLOB);
ALTER TABLE t1 MODIFY a MEDIUMBLOB, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a BLOB);
ALTER TABLE t1 MODIFY a BLOB, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a LONGBLOB);
ALTER TABLE t1 MODIFY a LONGBLOB, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a CHAR(10));
ALTER TABLE t1 MODIFY a CHAR(10), ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a VARCHAR(10));
ALTER TABLE t1 MODIFY a VARCHAR(10), ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a TINYTEXT);
ALTER TABLE t1 MODIFY a TINYTEXT, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a MEDIUMTEXT);
ALTER TABLE t1 MODIFY a MEDIUMTEXT, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a TEXT);
ALTER TABLE t1 MODIFY a TEXT, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a LONGTEXT);
ALTER TABLE t1 MODIFY a LONGTEXT, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a CHAR(10));
ALTER TABLE t1 MODIFY a CHAR(10) COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a VARCHAR(10));
ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TINYTEXT);
ALTER TABLE t1 MODIFY a TINYTEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a MEDIUMTEXT);
ALTER TABLE t1 MODIFY a MEDIUMTEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TEXT);
ALTER TABLE t1 MODIFY a TEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a LONGTEXT);
ALTER TABLE t1 MODIFY a LONGTEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a CHAR(10) COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a CHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a VARCHAR(10) COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TINYTEXT COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a TINYTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a MEDIUMTEXT COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a MEDIUMTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TEXT COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a TEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a LONGTEXT COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a LONGTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a CHAR(10) COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a CHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a VARCHAR(10) COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TINYTEXT COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a TINYTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a MEDIUMTEXT COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a MEDIUMTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TEXT COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a TEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a LONGTEXT COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a LONGTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
select @@global.delay_key_write;
@@global.delay_key_write
ON
create table t1 (a int, b int, key(b));
flush tables;
flush status;
show status like 'Feature_delay_key_write';
Variable_name	Value
Feature_delay_key_write	0
insert t1 values (1,2),(2,3),(3,4);
show status like 'Feature_delay_key_write';
Variable_name	Value
Feature_delay_key_write	0
alter online table t1 delay_key_write=1;
show status like 'Feature_delay_key_write';
Variable_name	Value
Feature_delay_key_write	0
flush tables;
insert t1 values (1,2),(2,3),(3,4);
show status like 'Feature_delay_key_write';
Variable_name	Value
Feature_delay_key_write	1
alter online table t1 delay_key_write=0;
show status like 'Feature_delay_key_write';
Variable_name	Value
Feature_delay_key_write	1
flush tables;
insert t1 values (1,2),(2,3),(3,4);
show status like 'Feature_delay_key_write';
Variable_name	Value
Feature_delay_key_write	1
drop table t1;