include/master-slave.inc
[connection master]
include/sync_slave_sql_with_master.inc
SET @start_max_connections= @@global.max_connections;
SET @start_init_slave= @@global.init_slave;
SET NAMES utf8;
SET @@global.init_slave = 'SET @@global.max_connections = @@global.max_connections + 1 -- комментарий';
DROP TABLE IF EXISTS t1;
CREATE TEMPORARY TABLE t1 AS SELECT @@global.init_slave AS my_column;
DESCRIBE t1;
Field	Type	Null	Key	Default	Extra
my_column	varchar(74)	YES		NULL	
select length(my_column) from t1;
length(my_column)
85
DROP TABLE t1;
SELECT @@global.init_slave = 'SET @@global.max_connections = @@global.max_connections + 1 -- комментарий';
@@global.init_slave = 'SET @@global.max_connections = @@global.max_connections + 1 -- комментарий'
1
Expect 1
include/assert.inc [@@global.max_connections = @start_max_connections]
include/restart_slave.inc
connection master;
include/sync_slave_sql_with_master.inc
include/assert.inc [@@global.max_connections = @start_max_connections + 1]
SET @@global.init_slave = "SET @a=5";
include/restart_slave.inc
SHOW VARIABLES LIKE 'init_slave';
Variable_name	Value
init_slave	SET @a=5
SELECT @a;
@a
NULL
Expect NULL
SET @@global.max_connections= @start_max_connections;
SET @@global.init_slave= @start_init_slave;
include/rpl_end.inc