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330 lines
13 KiB
330 lines
13 KiB
3 months ago
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drop database if exists events_test;
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create database events_test;
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use events_test;
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create event e_26 on schedule at '2037-01-01 00:00:00' disable do set @a = 5;
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select event_definition, definer, convert_tz(execute_at, 'UTC', 'SYSTEM'), on_completion from information_schema.events;
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EVENT_DEFINITION DEFINER convert_tz(execute_at, 'UTC', 'SYSTEM') ON_COMPLETION
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set @a = 5 root@localhost 2037-01-01 03:00:00 NOT PRESERVE
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drop event e_26;
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create event e_26 on schedule at NULL disable do set @a = 5;
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ERROR HY000: Incorrect AT value: 'NULL'
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create event e_26 on schedule at 'definitely not a datetime' disable do set @a = 5;
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ERROR HY000: Incorrect AT value: 'definitely not a datetime'
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set names utf8;
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Warnings:
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Warning 3719 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
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create event задачка on schedule every 123 minute starts now() ends now() + interval 1 month do select 1;
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drop event задачка;
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"DISABLE the scheduler. Testing that it does not work when the variable is 0"
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set global event_scheduler=off;
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select definer, event_name from information_schema.events;
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DEFINER EVENT_NAME
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select get_lock("test_lock1", 20);
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get_lock("test_lock1", 20)
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1
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create event закачка on schedule every 10 hour do select get_lock("test_lock1", 20);
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"Should return 1 row"
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select definer, event_name from information_schema.events;
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DEFINER EVENT_NAME
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root@localhost закачка
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"Should be only 0 process"
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select /*1*/ user, host, db, command, state, info
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from information_schema.processlist
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where (user='event_scheduler')
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order by info;
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user host db command state info
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select release_lock("test_lock1");
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release_lock("test_lock1")
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1
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drop event закачка;
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"Should have 0 events"
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select count(*) from information_schema.events;
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count(*)
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0
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"ENABLE the scheduler and get a lock"
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set global event_scheduler=on;
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select get_lock("test_lock2", 20);
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get_lock("test_lock2", 20)
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1
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"Create an event which tries to acquire a mutex. The event locks on the mutex"
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create event закачка on schedule every 10 hour do select get_lock("test_lock2", 20);
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"Should have only 2 processes: the scheduler and the locked event"
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select /*2*/ user, host, db, command, state, info
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from information_schema.processlist
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where (info like "select get_lock%" OR user='event_scheduler')
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order by info;
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user host db command state info
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event_scheduler localhost NULL Daemon Waiting for next activation NULL
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root localhost events_test Connect User lock select get_lock("test_lock2", 20)
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"Release the mutex, the event worker should finish."
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select release_lock("test_lock2");
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release_lock("test_lock2")
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1
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drop event закачка;
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select get_lock("test_lock2_1", 20);
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get_lock("test_lock2_1", 20)
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1
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create event закачка21 on schedule every 10 hour do select get_lock("test_lock2_1", 20);
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"Should have only 2 processes: the scheduler and the locked event"
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select /*3*/ user, host, db, command, state, info
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from information_schema.processlist
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where (info like "select get_lock%" OR user='event_scheduler')
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order by info;
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user host db command state info
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event_scheduler localhost NULL Daemon Waiting for next activation NULL
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root localhost events_test Connect User lock select get_lock("test_lock2_1", 20)
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set global event_scheduler=off;
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"Should have only our process now:"
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select /*4*/ user, host, db, command, state, info
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from information_schema.processlist
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where (info like "select get_lock%" OR user='event_scheduler')
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order by info;
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user host db command state info
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root localhost events_test Connect User lock select get_lock("test_lock2_1", 20)
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select release_lock("test_lock2_1");
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release_lock("test_lock2_1")
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1
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drop event закачка21;
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set global event_scheduler = ON;
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create table t_16 (s1 int);
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create trigger t_16_bi before insert on t_16 for each row create event e_16 on schedule every 1 second do set @a=5;
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ERROR HY000: Recursion of EVENT DDL statements is forbidden when body is present
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drop table t_16;
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create event white_space
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on schedule every 10 hour
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disable
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do
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select 1;
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select event_schema, event_name, definer, event_definition from information_schema.events where event_name='white_space';
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EVENT_SCHEMA EVENT_NAME DEFINER EVENT_DEFINITION
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events_test white_space root@localhost select 1
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drop event white_space;
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create event white_space on schedule every 10 hour disable do
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select 2;
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select event_schema, event_name, definer, event_definition from information_schema.events where event_name='white_space';
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EVENT_SCHEMA EVENT_NAME DEFINER EVENT_DEFINITION
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events_test white_space root@localhost select 2
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drop event white_space;
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create event white_space on schedule every 10 hour disable do select 3;
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select event_schema, event_name, definer, event_definition from information_schema.events where event_name='white_space';
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EVENT_SCHEMA EVENT_NAME DEFINER EVENT_DEFINITION
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events_test white_space root@localhost select 3
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drop event white_space;
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create event e1 on schedule every 1 year do set @a = 5;
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create table t1 (s1 int);
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create trigger t1_ai after insert on t1 for each row show create event e1;
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ERROR 0A000: Not allowed to return a result set from a trigger
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drop table t1;
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drop event e1;
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SHOW EVENTS FROM aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;
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ERROR 42000: Identifier name 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' is too long
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SHOW EVENTS FROM ``;
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ERROR 42000: Incorrect database name ''
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SHOW EVENTS FROM `events\\test`;
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Db Name Definer Time zone Type Execute at Interval value Interval field Starts Ends Status Originator character_set_client collation_connection Database Collation
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LOCK TABLES mode.
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create table t1 (a int);
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create event e1 on schedule every 10 hour do select 1;
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lock table t1 read;
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show create event e1;
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Event sql_mode time_zone Create Event character_set_client collation_connection Database Collation
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e1 ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION SYSTEM CREATE DEFINER=`root`@`localhost` EVENT `e1` ON SCHEDULE EVERY 10 HOUR STARTS '#' ON COMPLETION NOT PRESERVE ENABLE DO select 1 utf8 utf8_general_ci utf8mb4_0900_ai_ci
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select event_name from information_schema.events;
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EVENT_NAME
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e1
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create event e2 on schedule every 10 hour do select 1;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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alter event e2 disable;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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alter event e2 rename to e3;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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drop event e2;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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drop event e1;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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unlock tables;
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drop event e1;
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Make sure we have left no events
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select event_name from information_schema.events;
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EVENT_NAME
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Events in sub-statements, events and prelocking
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create event e1 on schedule every 10 hour do select 1;
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create function f1() returns int
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begin
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show create event e1;
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return 1;
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end|
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ERROR 0A000: Not allowed to return a result set from a function
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create trigger trg before insert on t1 for each row
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begin
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show create event e1;
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end|
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ERROR 0A000: Not allowed to return a result set from a trigger
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create function f1() returns int
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begin
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select event_name from information_schema.events;
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return 1;
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end|
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ERROR 0A000: Not allowed to return a result set from a function
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create trigger trg before insert on t1 for each row
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begin
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select event_name from information_schema.events;
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end|
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ERROR 0A000: Not allowed to return a result set from a trigger
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create function f1() returns int
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begin
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create event e2 on schedule every 10 hour do select 1;
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return 1;
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end|
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ERROR HY000: Recursion of EVENT DDL statements is forbidden when body is present
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create function f1() returns int
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begin
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alter event e1 rename to e2;
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return 1;
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end|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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create function f1() returns int
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begin
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drop event e2;
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return 1;
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end|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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----------------------------------------------------------------------
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create trigger trg before insert on t1 for each row
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begin
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set new.a= f1();
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end|
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create function f1() returns int
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begin
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call p1();
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return 0;
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end|
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create procedure p1()
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begin
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select event_name from information_schema.events;
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end|
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insert into t1 (a) values (1)|
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ERROR 0A000: Not allowed to return a result set from a trigger
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drop procedure p1|
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create procedure p1()
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begin
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create temporary table tmp select event_name from information_schema.events;
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end|
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expected to work, since we redirect the output into a tmp table
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insert into t1 (a) values (1)|
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select * from tmp|
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EVENT_NAME
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e1
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drop temporary table tmp|
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drop procedure p1|
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create procedure p1()
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begin
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alter event e1 rename to e2;
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end|
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insert into t1 (a) values (1)|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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drop procedure p1|
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create procedure p1()
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begin
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drop event e1;
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end|
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insert into t1 (a) values (1)|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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drop table t1|
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drop event e1|
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set names utf8;
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Warnings:
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Warning 3719 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
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create event имя_события_в_кодировке_утф8_длиной_больше_чем_48 on schedule every 2 year do select 1;
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select EVENT_NAME from information_schema.events
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where event_schema='test';
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EVENT_NAME
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drop event имя_события_в_кодировке_утф8_длиной_больше_чем_48;
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create event
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очень_очень_очень_очень_очень_очень_очень_очень_длинная_строка_66
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on schedule every 2 year do select 1;
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ERROR 42000: Identifier name 'очень_очень_очень_очень_очень_очень_очень_очень_длинна' is too long
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create event event_35981 on schedule every 6 month on completion preserve
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disable
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do
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select 1;
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The following SELECTs should all give 1
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select count(*) from information_schema.events
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where event_schema = database() and event_name = 'event_35981' and
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on_completion = 'PRESERVE';
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count(*)
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1
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alter event event_35981 enable;
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select count(*) from information_schema.events
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where event_schema = database() and event_name = 'event_35981' and
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on_completion = 'PRESERVE';
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count(*)
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1
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alter event event_35981 on completion not preserve;
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select count(*) from information_schema.events
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where event_schema = database() and event_name = 'event_35981' and
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on_completion = 'NOT PRESERVE';
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count(*)
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1
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alter event event_35981 disable;
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select count(*) from information_schema.events
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where event_schema = database() and event_name = 'event_35981' and
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on_completion = 'NOT PRESERVE';
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count(*)
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1
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alter event event_35981 on completion preserve;
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select count(*) from information_schema.events
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where event_schema = database() and event_name = 'event_35981' and
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on_completion = 'PRESERVE';
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count(*)
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1
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drop event event_35981;
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create event event_35981 on schedule every 6 month disable
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do
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select 1;
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select count(*) from information_schema.events
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where event_schema = database() and event_name = 'event_35981' and
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on_completion = 'NOT PRESERVE';
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count(*)
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1
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drop event event_35981;
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create event event_35981 on schedule every 1 hour starts current_timestamp
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on completion not preserve
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do
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select 1;
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alter event event_35981 on schedule every 1 hour starts '1999-01-01 00:00:00'
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ends '1999-01-02 00:00:00';
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ERROR HY000: Event execution time is in the past and ON COMPLETION NOT PRESERVE is set. The event was not changed. Specify a time in the future.
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drop event event_35981;
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create event event_35981 on schedule every 1 hour starts current_timestamp
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on completion not preserve
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do
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select 1;
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alter event event_35981 on schedule every 1 hour starts '1999-01-01 00:00:00'
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ends '1999-01-02 00:00:00' on completion preserve;
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Warnings:
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Note 1544 Event execution time is in the past. Event has been disabled
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drop event event_35981;
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create event event_35981 on schedule every 1 hour starts current_timestamp
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on completion preserve
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do
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select 1;
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alter event event_35981 on schedule every 1 hour starts '1999-01-01 00:00:00'
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ends '1999-01-02 00:00:00';
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Warnings:
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Note 1544 Event execution time is in the past. Event has been disabled
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alter event event_35981 on schedule every 1 hour starts '1999-01-01 00:00:00'
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ends '1999-01-02 00:00:00' on completion not preserve;
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ERROR HY000: Event execution time is in the past and ON COMPLETION NOT PRESERVE is set. The event was not changed. Specify a time in the future.
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alter event event_35981 on schedule every 1 hour starts '1999-01-01 00:00:00'
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ends '1999-01-02 00:00:00' on completion preserve;
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Warnings:
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Note 1544 Event execution time is in the past. Event has been disabled
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drop event event_35981;
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drop database events_test;
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