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include/master-slave.inc
[connection master]
connection master;
set binlog_alter_two_phase=true;
CREATE OR REPLACE TABLE tab (
a int PRIMARY KEY,
b varchar(50),
c varchar(50)
) CHARACTER SET=latin1 engine=innodb;
SET SESSION alter_algorithm='INSTANT';
ALTER TABLE tab MODIFY COLUMN b varchar(100);
SET SESSION alter_algorithm='NOCOPY';
ALTER TABLE tab MODIFY COLUMN c varchar(100);
SHOW CREATE TABLE tab;
Table Create Table
tab CREATE TABLE `tab` (
`a` int(11) NOT NULL,
`b` varchar(100) DEFAULT NULL,
`c` varchar(100) DEFAULT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; CREATE OR REPLACE TABLE tab (
a int PRIMARY KEY,
b varchar(50),
c varchar(50)
) CHARACTER SET=latin1 engine=innodb
master-bin.000001 # Gtid # # GTID #-#-# START ALTER
master-bin.000001 # Query # # use `test`; ALTER TABLE tab MODIFY COLUMN b varchar(100)
master-bin.000001 # Gtid # # GTID #-#-# COMMIT ALTER id=#
master-bin.000001 # Query # # use `test`; ALTER TABLE tab MODIFY COLUMN b varchar(100)
master-bin.000001 # Gtid # # GTID #-#-# START ALTER
master-bin.000001 # Query # # use `test`; ALTER TABLE tab MODIFY COLUMN c varchar(100)
master-bin.000001 # Gtid # # GTID #-#-# COMMIT ALTER id=#
master-bin.000001 # Query # # use `test`; ALTER TABLE tab MODIFY COLUMN c varchar(100)
connection slave;
SHOW CREATE TABLE tab;
Table Create Table
tab CREATE TABLE `tab` (
`a` int(11) NOT NULL,
`b` varchar(100) DEFAULT NULL,
`c` varchar(100) DEFAULT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
slave-bin.000001 # Gtid # # GTID #-#-#
slave-bin.000001 # Query # # use `test`; CREATE OR REPLACE TABLE tab (
a int PRIMARY KEY,
b varchar(50),
c varchar(50)
) CHARACTER SET=latin1 engine=innodb
slave-bin.000001 # Gtid # # GTID #-#-# START ALTER
slave-bin.000001 # Query # # use `test`; ALTER TABLE tab MODIFY COLUMN b varchar(100)
slave-bin.000001 # Gtid # # GTID #-#-# COMMIT ALTER id=#
slave-bin.000001 # Query # # use `test`; ALTER TABLE tab MODIFY COLUMN b varchar(100)
slave-bin.000001 # Gtid # # GTID #-#-# START ALTER
slave-bin.000001 # Query # # use `test`; ALTER TABLE tab MODIFY COLUMN c varchar(100)
slave-bin.000001 # Gtid # # GTID #-#-# COMMIT ALTER id=#
slave-bin.000001 # Query # # use `test`; ALTER TABLE tab MODIFY COLUMN c varchar(100)
connection master;
DROP TABLE tab;
connection slave;
include/rpl_end.inc
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