Commit 5896976d authored by unknown's avatar unknown
Browse files

Merge whalegate.ndb.mysql.com:/home/tomas/mysql-5.1-runtime 

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.1-single-user


mysql-test/r/information_schema.result:
  Auto merged
sql/mysqld.cc:
  Auto merged
parents 483ce953 306be7fe

mysql-test/r/events.result

+354 −51
Original line number Diff line number Diff line 
create database if not exists events_test;

drop database if exists events_test;

drop database if exists db_x;

drop database if exists mysqltest_db2;

drop database if exists mysqltest_no_such_database;

create database events_test;

use events_test;

CREATE USER pauline@localhost;

CREATE DATABASE db_x;
@@ -223,73 +227,180 @@ drop event root19; 
drop event root20;

drop event ðóóò21;

set names latin1;

Create a test event. Only event metadata is relevant, 

the actual schedule and body are not.

CREATE EVENT intact_check ON SCHEDULE EVERY 10 HOUR DO SELECT "nothing";

SHOW EVENTS;

Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator

events_test	intact_check	root@localhost	SYSTEM	RECURRING	NULL	10	#	#	NULL	ENABLED	1

ALTER TABLE mysql.event ADD dummy INT FIRST;

SHOW EVENTS;

ERROR HY000: Column count of mysql.event is wrong. Expected 18, found 19. The table is probably corrupted

ALTER TABLE mysql.event DROP dummy, ADD dummy2 VARCHAR(64) FIRST;

SHOW EVENTS;

ERROR HY000: Column count of mysql.event is wrong. Expected 18, found 19. The table is probably corrupted

ALTER TABLE mysql.event DROP dummy2;

Try to alter mysql.event: the server should fail to load

event information after mysql.event was tampered with.



First, let's add a column to the end and make sure everything

works as before



ALTER TABLE mysql.event ADD dummy INT;

SHOW EVENTS;

Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator

events_test	intact_check	root@localhost	SYSTEM	RECURRING	NULL	10	#	#	NULL	ENABLED	1

SELECT event_name FROM INFORMATION_SCHEMA.events;

event_name

intact_check

SHOW CREATE EVENT intact_check;

Event	sql_mode	time_zone	Create Event

intact_check		SYSTEM	CREATE EVENT `intact_check` ON SCHEDULE EVERY 10 HOUR STARTS '#' ON COMPLETION NOT PRESERVE ENABLE DO SELECT "nothing"

DROP EVENT no_such_event;

ERROR HY000: Unknown event 'no_such_event'

CREATE EVENT intact_check_1 ON SCHEDULE EVERY 5 HOUR DO SELECT 5;

ALTER EVENT intact_check_1 ON SCHEDULE EVERY 8 HOUR DO SELECT 8;

ALTER EVENT intact_check_1 RENAME TO intact_check_2;

DROP EVENT intact_check_1;

ERROR HY000: Unknown event 'intact_check_1'

DROP EVENT intact_check_2;

DROP EVENT intact_check;

DROP DATABASE IF EXISTS mysqltest_no_such_database;

Warnings:

Note	1008	Can't drop database 'mysqltest_no_such_database'; database doesn't exist

CREATE DATABASE mysqltest_db2;

DROP DATABASE mysqltest_db2;

SELECT @@event_scheduler;

@@event_scheduler

OFF

SHOW VARIABLES LIKE 'event_scheduler';

Variable_name	Value

event_scheduler	OFF

SET GLOBAL event_scheduler=OFF;

ALTER TABLE mysql.event DROP dummy;

CREATE EVENT intact_check ON SCHEDULE EVERY 10 HOUR DO SELECT "nothing";



Now let's add a column to the first position: the server

expects to see event schema name there



ALTER TABLE mysql.event ADD dummy INT FIRST;

SHOW EVENTS;

ERROR HY000: Cannot load from mysql.event. The table is probably corrupted

SELECT event_name FROM INFORMATION_SCHEMA.events;

ERROR HY000: Cannot load from mysql.event. The table is probably corrupted

SHOW CREATE EVENT intact_check;

ERROR HY000: Unknown event 'intact_check'

DROP EVENT no_such_event;

ERROR HY000: Unknown event 'no_such_event'

CREATE EVENT intact_check_1 ON SCHEDULE EVERY 5 HOUR DO SELECT 5;

ERROR HY000: Cannot load from mysql.event. The table is probably corrupted

ALTER EVENT intact_check_1 ON SCHEDULE EVERY 8 HOUR DO SELECT 8;

ERROR HY000: Unknown event 'intact_check_1'

ALTER EVENT intact_check_1 RENAME TO intact_check_2;

ERROR HY000: Unknown event 'intact_check_1'

DROP EVENT intact_check_1;

ERROR HY000: Unknown event 'intact_check_1'

DROP EVENT intact_check_2;

ERROR HY000: Unknown event 'intact_check_2'

DROP EVENT intact_check;

ERROR HY000: Unknown event 'intact_check'

DROP DATABASE IF EXISTS mysqltest_no_such_database;

Warnings:

Note	1008	Can't drop database 'mysqltest_no_such_database'; database doesn't exist

CREATE DATABASE mysqltest_db2;

DROP DATABASE mysqltest_db2;

SELECT @@event_scheduler;

@@event_scheduler

OFF

SHOW VARIABLES LIKE 'event_scheduler';

Variable_name	Value

event_scheduler	OFF

SET GLOBAL event_scheduler=OFF;

Clean up

ALTER TABLE mysql.event DROP dummy;

DELETE FROM mysql.event;

CREATE EVENT intact_check ON SCHEDULE EVERY 10 HOUR DO SELECT "nothing";

Back up the table, further changes are not reversible

CREATE TABLE event_like LIKE mysql.event;

INSERT INTO event_like SELECT * FROM mysql.event;

ALTER TABLE mysql.event MODIFY db char(64) character set cp1251 default '';

SELECT event_name FROM INFORMATION_SCHEMA.EVENTS;

ERROR HY000: Cannot load from mysql.event. The table is probably corrupted. Please see the error log for details

ALTER TABLE mysql.event MODIFY db char(20) character set utf8 collate utf8_bin default '';

SHOW CREATE TABLE mysql.event;

Table	Create Table

event	CREATE TABLE `event` (

  `db` char(20) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',

  `name` char(64) NOT NULL DEFAULT '',

  `body` longblob NOT NULL,

  `definer` char(77) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',

  `execute_at` datetime DEFAULT NULL,

  `interval_value` int(11) DEFAULT NULL,

  `interval_field` enum('YEAR','QUARTER','MONTH','DAY','HOUR','MINUTE','WEEK','SECOND','MICROSECOND','YEAR_MONTH','DAY_HOUR','DAY_MINUTE','DAY_SECOND','HOUR_MINUTE','HOUR_SECOND','MINUTE_SECOND','DAY_MICROSECOND','HOUR_MICROSECOND','MINUTE_MICROSECOND','SECOND_MICROSECOND') DEFAULT NULL,

  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,

  `modified` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',

  `last_executed` datetime DEFAULT NULL,

  `starts` datetime DEFAULT NULL,

  `ends` datetime DEFAULT NULL,

  `status` enum('ENABLED','DISABLED','SLAVESIDE_DISABLED') NOT NULL DEFAULT 'ENABLED',

  `on_completion` enum('DROP','PRESERVE') NOT NULL DEFAULT 'DROP',

  `sql_mode` set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','NOT_USED','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE') NOT NULL DEFAULT '',

  `comment` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',

  `originator` int(10) NOT NULL,

  `time_zone` char(64) CHARACTER SET latin1 NOT NULL DEFAULT 'SYSTEM',

  PRIMARY KEY (`db`,`name`)

) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='Events'

SELECT event_name FROM INFORMATION_SCHEMA.EVENTS;

ERROR HY000: Cannot load from mysql.event. The table is probably corrupted. Please see the error log for details

ALTER TABLE mysql.event MODIFY db char(64) character set utf8 collate utf8_bin default '';

"This should work"

SHOW EVENTS;

Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator

events_test	intact_check	root@localhost	SYSTEM	RECURRING	NULL	10	#	#	NULL	ENABLED	1

ALTER TABLE mysql.event MODIFY db char(64) character set cp1251 default '';

SELECT event_name FROM INFORMATION_SCHEMA.EVENTS;

ERROR HY000: Cannot load from mysql.event. The table is probably corrupted. Please see the error log for details

ALTER TABLE mysql.event MODIFY db varchar(64) character set utf8 collate utf8_bin default '';

SELECT event_name FROM INFORMATION_SCHEMA.EVENTS;

ERROR HY000: Cannot load from mysql.event. The table is probably corrupted. Please see the error log for details



Drop some columns and try more checks. 





ALTER TABLE mysql.event DROP comment, DROP starts;

SHOW EVENTS;

ERROR HY000: Cannot load from mysql.event. The table is probably corrupted

SELECT event_name FROM INFORMATION_SCHEMA.EVENTS;

ERROR HY000: Cannot load from mysql.event. The table is probably corrupted

SHOW CREATE EVENT intact_check;

ERROR HY000: Cannot load from mysql.event. The table is probably corrupted

DROP EVENT no_such_event;

ERROR HY000: Unknown event 'no_such_event'

CREATE EVENT intact_check_1 ON SCHEDULE EVERY 5 HOUR DO SELECT 5;

ERROR HY000: Column count of mysql.event is wrong. Expected 18, found 16. The table is probably corrupted

ALTER EVENT intact_check_1 ON SCHEDULE EVERY 8 HOUR DO SELECT 8;

ERROR HY000: Unknown event 'intact_check_1'

ALTER EVENT intact_check_1 RENAME TO intact_check_2;

ERROR HY000: Unknown event 'intact_check_1'

DROP EVENT intact_check_1;

ERROR HY000: Unknown event 'intact_check_1'

DROP EVENT intact_check_2;

ERROR HY000: Unknown event 'intact_check_2'

DROP EVENT intact_check;

DROP DATABASE IF EXISTS mysqltest_no_such_database;

Warnings:

Note	1008	Can't drop database 'mysqltest_no_such_database'; database doesn't exist

CREATE DATABASE mysqltest_db2;

DROP DATABASE mysqltest_db2;

SELECT @@event_scheduler;

@@event_scheduler

OFF

SHOW VARIABLES LIKE 'event_scheduler';

Variable_name	Value

event_scheduler	OFF

SET GLOBAL event_scheduler=OFF;



Now drop the table, and test again





DROP TABLE mysql.event;

SHOW EVENTS;

ERROR 42S02: Table 'mysql.event' doesn't exist

SELECT event_name FROM INFORMATION_SCHEMA.events;

ERROR 42S02: Table 'mysql.event' doesn't exist

SHOW CREATE EVENT intact_check;

ERROR 42S02: Table 'mysql.event' doesn't exist

DROP EVENT no_such_event;

ERROR 42S02: Table 'mysql.event' doesn't exist

CREATE EVENT intact_check_1 ON SCHEDULE EVERY 5 HOUR DO SELECT 5;

ERROR 42S02: Table 'mysql.event' doesn't exist

ALTER EVENT intact_check_1 ON SCHEDULE EVERY 8 HOUR DO SELECT 8;

ERROR 42S02: Table 'mysql.event' doesn't exist

ALTER EVENT intact_check_1 RENAME  TO intact_check_2;

ERROR 42S02: Table 'mysql.event' doesn't exist

DROP EVENT intact_check_1;

ERROR 42S02: Table 'mysql.event' doesn't exist

DROP EVENT intact_check_2;

ERROR 42S02: Table 'mysql.event' doesn't exist

DROP EVENT intact_check;

ERROR 42S02: Table 'mysql.event' doesn't exist

DROP DATABASE IF EXISTS mysqltest_no_such_database;

Warnings:

Note	1008	Can't drop database 'mysqltest_no_such_database'; database doesn't exist

Error	1146	Table 'mysql.event' doesn't exist

CREATE DATABASE mysqltest_db2;

DROP DATABASE mysqltest_db2;

OK, there is an unnecessary warning about the non-existent table 

but it's not easy to fix and no one complained about it.

A similar warning is printed if mysql.proc is missing.

SHOW WARNINGS;

Level	Code	Message

Error	1146	Table 'mysql.event' doesn't exist

SELECT @@event_scheduler;

@@event_scheduler

OFF

SHOW VARIABLES LIKE 'event_scheduler';

Variable_name	Value

event_scheduler	OFF

SET GLOBAL event_scheduler=OFF;

Restore the original table.

CREATE TABLE mysql.event like event_like;

INSERT INTO  mysql.event SELECT * FROM event_like;

DROP TABLE event_like;

SHOW EVENTS;

Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator

events_test	intact_check	root@localhost	SYSTEM	RECURRING	NULL	10	#	#	NULL	ENABLED	1

DROP EVENT intact_check;

create event e_26 on schedule at '2017-01-01 00:00:00' disable do set @a = 5;

select db, name, body, definer, convert_tz(execute_at, 'UTC', 'SYSTEM'), on_completion from mysql.event;

db	name	body	definer	convert_tz(execute_at, 'UTC', 'SYSTEM')	on_completion
@@ -402,4 +513,196 @@ SHOW EVENTS FROM ``; 
ERROR 42000: Incorrect database name ''

SHOW EVENTS FROM `events\\test`;

Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator



LOCK TABLES mode.



create table t1 (a int);

create event e1 on schedule every 10 hour do select 1;

lock table t1 read;

show create event e1;

Event	sql_mode	time_zone	Create Event

e1		SYSTEM	CREATE EVENT `e1` ON SCHEDULE EVERY 10 HOUR STARTS '#' ON COMPLETION NOT PRESERVE ENABLE DO select 1

select event_name from information_schema.events;

event_name

e1

create event e2 on schedule every 10 hour do select 1;

ERROR HY000: Table 'event' was not locked with LOCK TABLES

alter event e2 disable;

ERROR HY000: Table 'event' was not locked with LOCK TABLES

alter event e2 rename to e3;

ERROR HY000: Table 'event' was not locked with LOCK TABLES

drop event e2;

ERROR HY000: Table 'event' was not locked with LOCK TABLES

drop event e1;

ERROR HY000: Table 'event' was not locked with LOCK TABLES

unlock tables;

lock table t1 write;

show create event e1;

Event	sql_mode	time_zone	Create Event

e1		SYSTEM	CREATE EVENT `e1` ON SCHEDULE EVERY 10 HOUR STARTS '#' ON COMPLETION NOT PRESERVE ENABLE DO select 1

select event_name from information_schema.events;

event_name

e1

create event e2 on schedule every 10 hour do select 1;

ERROR HY000: Table 'event' was not locked with LOCK TABLES

alter event e2 disable;

ERROR HY000: Table 'event' was not locked with LOCK TABLES

alter event e2 rename to e3;

ERROR HY000: Table 'event' was not locked with LOCK TABLES

drop event e2;

ERROR HY000: Table 'event' was not locked with LOCK TABLES

drop event e1;

ERROR HY000: Table 'event' was not locked with LOCK TABLES

unlock tables;

lock table t1 read, mysql.event read;

show create event e1;

Event	sql_mode	time_zone	Create Event

e1		SYSTEM	CREATE EVENT `e1` ON SCHEDULE EVERY 10 HOUR STARTS '#' ON COMPLETION NOT PRESERVE ENABLE DO select 1

select event_name from information_schema.events;

event_name

e1

create event e2 on schedule every 10 hour do select 1;

ERROR HY000: Table 'event' was locked with a READ lock and can't be updated

alter event e2 disable;

ERROR HY000: Table 'event' was locked with a READ lock and can't be updated

alter event e2 rename to e3;

ERROR HY000: Table 'event' was locked with a READ lock and can't be updated

drop event e2;

ERROR HY000: Table 'event' was locked with a READ lock and can't be updated

drop event e1;

ERROR HY000: Table 'event' was locked with a READ lock and can't be updated

unlock tables;

lock table t1 write, mysql.event read;

show create event e1;

Event	sql_mode	time_zone	Create Event

e1		SYSTEM	CREATE EVENT `e1` ON SCHEDULE EVERY 10 HOUR STARTS '#' ON COMPLETION NOT PRESERVE ENABLE DO select 1

select event_name from information_schema.events;

event_name

e1

create event e2 on schedule every 10 hour do select 1;

ERROR HY000: Table 'event' was locked with a READ lock and can't be updated

alter event e2 disable;

ERROR HY000: Table 'event' was locked with a READ lock and can't be updated

alter event e2 rename to e3;

ERROR HY000: Table 'event' was locked with a READ lock and can't be updated

drop event e2;

ERROR HY000: Table 'event' was locked with a READ lock and can't be updated

drop event e1;

ERROR HY000: Table 'event' was locked with a READ lock and can't be updated

unlock tables;

lock table t1 read, mysql.event write;

ERROR HY000: You can't combine write-locking of system tables with other tables or lock types

lock table t1 write, mysql.event write;

ERROR HY000: You can't combine write-locking of system tables with other tables or lock types

lock table mysql.event write;

show create event e1;

Event	sql_mode	time_zone	Create Event

e1		SYSTEM	CREATE EVENT `e1` ON SCHEDULE EVERY 10 HOUR STARTS '#' ON COMPLETION NOT PRESERVE ENABLE DO select 1

select event_name from information_schema.events;

event_name

e1

create event e2 on schedule every 10 hour do select 1;

alter event e2 disable;

alter event e2 rename to e3;

drop event e3;

drop event e1;

unlock tables;

Make sure we have left no events 

select event_name from information_schema.events;

event_name



Events in sub-statements, events and prelocking





create event e1 on schedule every 10 hour do select 1;

create function f1() returns int

begin

show create event e1;

return 1;

end|

ERROR 0A000: Not allowed to return a result set from a function

create trigger trg before insert on t1 for each row

begin

show create event e1;

end|

ERROR 0A000: Not allowed to return a result set from a trigger

create function f1() returns int

begin

select event_name from information_schema.events;

return 1;

end|

ERROR 0A000: Not allowed to return a result set from a function

create trigger trg before insert on t1 for each row

begin

select event_name from information_schema.events;

end|

ERROR 0A000: Not allowed to return a result set from a trigger

create function f1() returns int

begin

create event e2 on schedule every 10 hour do select 1;

return 1;

end|

ERROR HY000: Recursion of EVENT DDL statements is forbidden when body is present

create function f1() returns int

begin

alter event e1 rename to e2;

return 1;

end|

ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.

create function f1() returns int

begin

drop event e2;

return 1;

end|

ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.

----------------------------------------------------------------------

create trigger trg before insert on t1 for each row

begin

set new.a= f1();

end|

create function f1() returns int

begin

call p1();

return 0;

end|

create procedure p1()

begin

select event_name from information_schema.events;

end|

insert into t1 (a) values (1)|

ERROR 0A000: Not allowed to return a result set from a trigger

drop procedure p1|

create procedure p1()

begin

show create event e1; 

end|

insert into t1 (a) values (1)|

ERROR 0A000: Not allowed to return a result set from a trigger

drop procedure p1|

create procedure p1()

begin

create temporary table tmp select event_name from information_schema.events;

end|

expected to work, since we redirect the output into a tmp table

insert into t1 (a) values (1)|

select * from tmp|

event_name

e1

drop temporary table tmp|

drop procedure p1|

create procedure p1()

begin

alter event e1 rename to e2;

end|

insert into t1 (a) values (1)|

ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.

drop procedure p1|

create procedure p1()

begin

drop event e1;

end|

insert into t1 (a) values (1)|

ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.

drop table t1|

drop event e1|

drop database events_test;

mysql-test/r/events_bugs.result

+149 −1

File changed.

Preview size limit exceeded, changes collapsed.

mysql-test/r/events_restart_phase1.result

+13 −9
Original line number Diff line number Diff line 
create database if not exists mysqltest_events_test;

use mysqltest_events_test;

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');

create event abc2 on schedule every 1 second do insert into execution_log value('abc2');

create event abc3 on schedule every 1 second do insert into execution_log value('abc3');

select name from execution_log;

name

insert into mysql.event values ('db1','bad','select 42','root@localhost',NULL,1000,'MICROSECOND','2006-05-05 17:39:11','2006-05-05 17:39:20','2016-05-05 15:39:24','2016-05-05 15:39:11',NULL,'ENABLED','DROP','','comment1',1,'SYSTEM');

insert into mysql.event values ('db1','bad2','sect','root@localhost',NULL,1000,'SECOND','2006-05-05 17:39:11','2006-05-05 17:39:20','2016-05-05 15:39:24','2016-05-05 15:39:11',NULL,'ENABLED','DROP','','comment2',1,'SYSTEM');

create event abc1 on schedule every 1 second do

insert into execution_log value('abc1');

create event abc2 on schedule every 1 second do

insert into execution_log value('abc2');

create event abc3 on schedule every 1 second do 

insert into execution_log value('abc3');

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"

mysql-test/r/events_restart_phase2.result

+42 −6
Original line number Diff line number Diff line 
use mysqltest_events_test;

"Should get 0 rows because the queue aborted run

select distinct name from execution_log order by name;

name

delete from mysql.event where name like 'bad%';

"Now restart the server again"
 
use events_test;

select @@event_scheduler;

@@event_scheduler

DISABLED

show events;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

select event_name from information_schema.events;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

show create event intact_check;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

drop event no_such_event;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

create event intact_check_1 on schedule every 5 hour do select 5;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

alter event intact_check_1 on schedule every 8 hour do select 8;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

alter event intact_check_1 rename to intact_check_2;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

drop event intact_check_1;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

drop event intact_check_2;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

drop event intact_check;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

set global event_scheduler=on;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

set global event_scheduler=off;

ERROR HY000: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

show variables like 'event_scheduler';

Variable_name	Value

event_scheduler	DISABLED

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;

Restore the original mysql.event table

drop table mysql.event;

rename table event_like to mysql.event;

Now let's restart the server again

mysql-test/r/events_restart_phase3.result

+5 −5
Original line number Diff line number Diff line 
use mysqltest_events_test;

use events_test;

select @@event_scheduler;

@@event_scheduler

ON

"Should get 3 rows : abc1, abc2, abc3

select distinct name from execution_log order by name;

name

abc1

abc2

abc3

drop event abc1;

drop event abc2;

drop event abc3;

drop table execution_log;

drop database mysqltest_events_test;
 
drop database events_test;