193 lines
5.5 KiB
Plaintext
193 lines
5.5 KiB
Plaintext
drop table if exists t1;
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create table t1 (a varchar(16), b int) engine=innodb;
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create trigger t1_bi before insert on t1 for each row
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begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end|
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select trigger_schema, trigger_name, event_object_schema,
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event_object_table, action_statement from information_schema.triggers
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where event_object_schema = 'test' and event_object_table = 't1';
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trigger_schema trigger_name event_object_schema event_object_table action_statement
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test t1_bi test t1 begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end
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insert into t1 values ('The Lion', 10);
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select * from t1;
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a b
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THE LION 13
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optimize table t1;
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Table Op Msg_type Msg_text
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test.t1 optimize note Table does not support optimize, doing recreate + analyze instead
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test.t1 optimize status OK
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select trigger_schema, trigger_name, event_object_schema,
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event_object_table, action_statement from information_schema.triggers
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where event_object_schema = 'test' and event_object_table = 't1';
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trigger_schema trigger_name event_object_schema event_object_table action_statement
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test t1_bi test t1 begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end
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insert into t1 values ('The Unicorn', 20);
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select * from t1;
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a b
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THE LION 13
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THE UNICORN 23
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alter table t1 add column c int default 0;
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select trigger_schema, trigger_name, event_object_schema,
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event_object_table, action_statement from information_schema.triggers
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where event_object_schema = 'test' and event_object_table = 't1';
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trigger_schema trigger_name event_object_schema event_object_table action_statement
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test t1_bi test t1 begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end
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insert into t1 values ('Alice', 30, 1);
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select * from t1;
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a b c
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THE LION 13 0
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THE UNICORN 23 0
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ALICE 33 1
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alter table t1 rename to t1;
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select trigger_schema, trigger_name, event_object_schema,
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event_object_table, action_statement from information_schema.triggers
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where event_object_schema = 'test' and event_object_table = 't1';
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trigger_schema trigger_name event_object_schema event_object_table action_statement
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test t1_bi test t1 begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end
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insert into t1 values ('The Crown', 40, 1);
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select * from t1;
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a b c
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THE LION 13 0
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THE UNICORN 23 0
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ALICE 33 1
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THE CROWN 43 1
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alter table t1 rename to t1, add column d int default 0;
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select trigger_schema, trigger_name, event_object_schema,
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event_object_table, action_statement from information_schema.triggers
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where event_object_schema = 'test' and event_object_table = 't1';
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trigger_schema trigger_name event_object_schema event_object_table action_statement
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test t1_bi test t1 begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end
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insert into t1 values ('The Pie', 50, 1, 1);
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select * from t1;
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a b c d
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THE LION 13 0 0
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THE UNICORN 23 0 0
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ALICE 33 1 0
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THE CROWN 43 1 0
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THE PIE 53 1 1
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drop table t1;
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Bug#26141 mixing table types in trigger causes full
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table lock on innodb table
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Ensure we do not open and lock tables for the triggers we do not
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fire.
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drop table if exists t1, t2, t3;
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drop trigger if exists trg_bug26141_au;
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drop trigger if exists trg_bug26141_ai;
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create table t1 (c int primary key) engine=innodb;
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create table t2 (c int) engine=myisam;
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create table t3 (c int) engine=myisam;
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insert into t1 (c) values (1);
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create trigger trg_bug26141_ai after insert on t1
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for each row
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begin
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insert into t2 (c) values (1);
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# We need the 'sync' lock to synchronously wait in connection 2 till
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# the moment when the trigger acquired all the locks.
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select release_lock("lock_bug26141_sync") into @a;
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# 1000 is time in seconds of lock wait timeout -- this is a way
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# to cause a manageable sleep up to 1000 seconds
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select get_lock("lock_bug26141_wait", 1000) into @a;
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end|
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create trigger trg_bug26141_au after update on t1
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for each row
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begin
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insert into t3 (c) values (1);
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end|
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select get_lock("lock_bug26141_wait", 0);
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get_lock("lock_bug26141_wait", 0)
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1
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select get_lock("lock_bug26141_sync", /* must not be priorly locked */ 0);
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get_lock("lock_bug26141_sync", /* must not be priorly locked */ 0)
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1
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insert into t1 (c) values (2);
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select get_lock("lock_bug26141_sync", 1000);
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get_lock("lock_bug26141_sync", 1000)
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1
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update t1 set c=3 where c=1;
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select release_lock("lock_bug26141_sync");
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release_lock("lock_bug26141_sync")
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1
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select release_lock("lock_bug26141_wait");
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release_lock("lock_bug26141_wait")
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1
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select * from t1;
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c
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2
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3
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select * from t2;
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c
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1
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select * from t3;
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c
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1
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drop table t1, t2, t3;
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DROP TABLE IF EXISTS t1;
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DROP TABLE IF EXISTS t2;
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CREATE TABLE t1(a INT PRIMARY KEY) ENGINE=innodb;
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CREATE TABLE t2(b INT, FOREIGN KEY(b) REFERENCES t1(a)) ENGINE=innodb;
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INSERT INTO t1 VALUES (1);
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CREATE TRIGGER t1_bd BEFORE DELETE ON t1 FOR EACH ROW SET @a = 1;
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CREATE TRIGGER t1_ad AFTER DELETE ON t1 FOR EACH ROW SET @b = 1;
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SET @a = 0;
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SET @b = 0;
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TRUNCATE t1;
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SELECT @a, @b;
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@a @b
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0 0
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INSERT INTO t1 VALUES (1);
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DELETE FROM t1;
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SELECT @a, @b;
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@a @b
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1 1
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DROP TABLE t2, t1;
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End of 5.0 tests
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BUG#31612
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Trigger fired multiple times leads to gaps in auto_increment sequence
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create table t1 (a int, val char(1)) engine=InnoDB;
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create table t2 (b int auto_increment primary key,
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val char(1)) engine=InnoDB;
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create trigger t1_after_insert after
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insert on t1 for each row insert into t2 set val=NEW.val;
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insert into t1 values ( 123, 'a'), ( 123, 'b'), ( 123, 'c'),
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(123, 'd'), (123, 'e'), (123, 'f'), (123, 'g');
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insert into t1 values ( 654, 'a'), ( 654, 'b'), ( 654, 'c'),
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(654, 'd'), (654, 'e'), (654, 'f'), (654, 'g');
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select * from t2 order by b;
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b val
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1 a
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2 b
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3 c
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4 d
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5 e
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6 f
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7 g
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8 a
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9 b
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10 c
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11 d
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12 e
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13 f
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14 g
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drop trigger t1_after_insert;
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drop table t1,t2;
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