#
# Test of ALTER ONLINE TABLE syntax
#

--source include/have_innodb.inc
--source include/have_partition.inc
#
# Test of things that can be done online
#

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 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";

# No OPs

alter online table t1 algorithm=INPLACE, lock=NONE;
alter online table t1;
alter table t1 algorithm=INPLACE;
alter table t1 lock=NONE;

drop table t1;

#
# everything with temporary tables is "online", i.e. without locks
#
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 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;

drop table t2;

#
# Test of things that is not possible to do online
#

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);

--error ER_ALTER_OPERATION_NOT_SUPPORTED
alter online table t1 drop column b, add b int;
--error ER_ALTER_OPERATION_NOT_SUPPORTED
alter online table t1 modify b bigint;
--error ER_ALTER_OPERATION_NOT_SUPPORTED
alter online table t1 modify e enum('c','a','b');
--error ER_ALTER_OPERATION_NOT_SUPPORTED
alter online table t1 modify c varchar(50);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
alter online table t1 modify c varchar(100);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
alter online table t1 add f int;
--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
alter online table t1 engine=memory;
--error ER_ALTER_OPERATION_NOT_SUPPORTED
alter online table t1 rename to t2;

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";
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);

#
# everything with temporary tables is "online", i.e. without locks
#
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;

#
# Test merge tables
#
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);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
alter online table t3 union=(t1,t2);
drop table t1,t2,t3;

#
# MDEV-9868 Altering a partitioned table comment does a full copy
#
create table t1 (i int) partition by hash(i) partitions 2;
alter online table t1 comment 'test';
drop table t1;

#
# MDEV-9168 altering a column comment does a full copy
#
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;

--echo #
--echo # MDEV-8948 ALTER ... INPLACE does work for BINARY, BLOB
--echo #
#
# ALTER to the same [VAR]BINARY type
#
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;

#
# ALTER to the same BLOB variant
#
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;

#
# ALTER to the same [VAR]CHAR type
#
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;


#
# ALTER to the same TEXT variant
#
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;

#
# ALTER from a non-binary to a binary collation
#
CREATE TABLE t1 (a CHAR(10));
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a CHAR(10) COLLATE latin1_bin, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a VARCHAR(10));
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE latin1_bin, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a TINYTEXT);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a TINYTEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a MEDIUMTEXT);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a MEDIUMTEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a TEXT);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a TEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a LONGTEXT);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a LONGTEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
DROP TABLE t1;

#
# ALTER from a binary to a non-binary collation
#
CREATE TABLE t1 (a CHAR(10) COLLATE latin1_bin);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a CHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a VARCHAR(10) COLLATE latin1_bin);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a TINYTEXT COLLATE latin1_bin);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a TINYTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a MEDIUMTEXT COLLATE latin1_bin);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a MEDIUMTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a TEXT COLLATE latin1_bin);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a TEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a LONGTEXT COLLATE latin1_bin);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a LONGTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

#
# ALTER from a non-binary collation to another non-binary collation
#
CREATE TABLE t1 (a CHAR(10) COLLATE latin1_general_ci);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a CHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a VARCHAR(10) COLLATE latin1_general_ci);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a TINYTEXT COLLATE latin1_general_ci);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a TINYTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a MEDIUMTEXT COLLATE latin1_general_ci);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a MEDIUMTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a TEXT COLLATE latin1_general_ci);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a TEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

CREATE TABLE t1 (a LONGTEXT COLLATE latin1_general_ci);
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE t1 MODIFY a LONGTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
DROP TABLE t1;

# End of 10.0 tests

#
# MDEV-11335 Changing delay_key_write option for MyISAM table should not copy rows
#
select @@global.delay_key_write;
create table t1 (a int, b int, key(b));
flush tables;
flush status;
show status like 'Feature_delay_key_write';
insert t1 values (1,2),(2,3),(3,4);
show status like 'Feature_delay_key_write';
alter online table t1 delay_key_write=1;
show status like 'Feature_delay_key_write';
flush tables;
insert t1 values (1,2),(2,3),(3,4);
show status like 'Feature_delay_key_write';
alter online table t1 delay_key_write=0;
show status like 'Feature_delay_key_write';
flush tables;
insert t1 values (1,2),(2,3),(3,4);
show status like 'Feature_delay_key_write';
drop table t1;

# End of 10.1 tests