call mtr.add_suppression("Column count of mysql.event is wrong. Expected .*, found .*\. The table is probably corrupted");
set global event_scheduler=off;
drop database if exists events_test;
create database events_test;
use events_test;
create table execution_log(name char(10));
create event abc1 on schedule every 1 second do
insert into execution_log value('abc1');
Warnings:
Warning	1105	Event scheduler is switched off, use SET GLOBAL event_scheduler=ON to enable it.
create event abc2 on schedule every 1 second do
insert into execution_log value('abc2');
Warnings:
Warning	1105	Event scheduler is switched off, use SET GLOBAL event_scheduler=ON to enable it.
create event abc3 on schedule every 1 second do 
insert into execution_log value('abc3');
Warnings:
Warning	1105	Event scheduler is switched off, use SET GLOBAL event_scheduler=ON to enable it.
create table event_like like mysql.event;
insert into event_like select * from mysql.event;
alter table mysql.event
change column body  body longtext character set utf8 collate utf8_bin;
"Now we restart the server"
call mtr.add_suppression("Incorrect definition of table mysql.event:.*");
# restart
use events_test;
select @@event_scheduler;
@@event_scheduler
OFF
show events;
ERROR HY000: Cannot proceed, because event scheduler is disabled
select event_name from information_schema.events;
ERROR HY000: Cannot proceed, because event scheduler is disabled
show create event intact_check;
ERROR HY000: Cannot proceed, because event scheduler is disabled
drop event no_such_event;
ERROR HY000: Cannot proceed, because event scheduler is disabled
create event intact_check_1 on schedule every 5 hour do select 5;
ERROR HY000: Cannot proceed, because event scheduler is disabled
alter event intact_check_1 on schedule every 8 hour do select 8;
ERROR HY000: Cannot proceed, because event scheduler is disabled
alter event intact_check_1 rename to intact_check_2;
ERROR HY000: Cannot proceed, because event scheduler is disabled
drop event intact_check_1;
ERROR HY000: Cannot proceed, because event scheduler is disabled
drop event intact_check_2;
ERROR HY000: Cannot proceed, because event scheduler is disabled
drop event intact_check;
ERROR HY000: Cannot proceed, because event scheduler is disabled
set global event_scheduler=on;
ERROR HY000: Event Scheduler: An error occurred when initializing system tables. Disabling the Event Scheduler.
set global event_scheduler=off;
ERROR HY000: Event Scheduler: An error occurred when initializing system tables. Disabling the Event Scheduler.
show variables like 'event_scheduler';
Variable_name	Value
event_scheduler	OFF
Make sure that we still can create and drop databases,
and no warnings are produced.
drop database if exists mysqltest_database_not_exists;
Warnings:
Note	1008	Can't drop database 'mysqltest_database_not_exists'; database doesn't exist
create database mysqltest_db1;
drop database mysqltest_db1;
Warnings:
Error	1545	Failed to open mysql.event
Restore the original mysql.event table
drop table mysql.event;
rename table event_like to mysql.event;
check that we can now enable events without restart
set global event_scheduler=original;
Warnings:
Note	1408	Event Scheduler: Loaded 3 events
select @@global.event_scheduler;
@@global.event_scheduler
ON
set global event_scheduler=on;
select @@global.event_scheduler;
@@global.event_scheduler
ON
show events;
Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator	character_set_client	collation_connection	Database Collation
events_test	abc1	root@localhost	SYSTEM	RECURRING	#	1	SECOND	#	#	ENABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
events_test	abc2	root@localhost	SYSTEM	RECURRING	#	1	SECOND	#	#	ENABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
events_test	abc3	root@localhost	SYSTEM	RECURRING	#	1	SECOND	#	#	ENABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
Now let's restart the server again
# restart
use events_test;
select @@event_scheduler;
@@event_scheduler
ON
drop table execution_log;
drop database events_test;
#
# Test for bug#11748899 -- EVENT SET TO DISABLED AND ON COMPLETION
#                          NOT PRESERVE IS DELETED AT SERVER
#
SELECT @@event_scheduler;
@@event_scheduler
ON
USE test;
DROP EVENT IF EXISTS e1;
CREATE EVENT e1 ON SCHEDULE EVERY 1 SECOND DISABLE DO SELECT 1;
SHOW EVENTS;
Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator	character_set_client	collation_connection	Database Collation
test	e1	root@localhost	SYSTEM	RECURRING	#	1	SECOND	#	#	DISABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
"Now we restart the server"
# restart
USE test;
SELECT @@event_scheduler;
@@event_scheduler
ON
SHOW EVENTS;
Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator	character_set_client	collation_connection	Database Collation
test	e1	root@localhost	SYSTEM	RECURRING	#	1	SECOND	#	#	DISABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
DROP EVENT e1;
# end test for bug#11748899
#
# Test for MDEV-21758 Events switched randomly to SLAVESIDE_DISABLED
#
create event ev on schedule every 1 minute do set @a= 1;
select name, originator, status from mysql.event;
name	originator	status
ev	1	ENABLED
#
# Restarting server with server_id=100
#
# restart: --server-id=100
select @@global.server_id;
@@global.server_id
100
select name, originator, status from mysql.event;
name	originator	status
ev	1	ENABLED
set global server_id= 1;
#
# Restarting server with the original server_id=1
#
# restart
select @@global.server_id;
@@global.server_id
1
select name, originator, status from mysql.event;
name	originator	status
ev	1	ENABLED
drop event ev;