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MDEV-9095: Executing triggers on slave in row-based replication
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240
mysql-test/suite/rpl/r/rpl_row_triggers.result
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240
mysql-test/suite/rpl/r/rpl_row_triggers.result
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include/master-slave.inc
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[connection master]
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# Test of row replication with triggers on the slave side
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CREATE TABLE t1 (C1 CHAR(1) primary key, C2 CHAR(1)) engine=innodb;
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SELECT * FROM t1;
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C1 C2
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SET @old_slave_exec_mode= @@global.slave_exec_mode;
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SET @old_slave_run_triggers_for_rbr= @@global.slave_run_triggers_for_rbr;
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SET @@global.slave_exec_mode= IDEMPOTENT;
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SET @@global.slave_run_triggers_for_rbr= YES;
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SELECT * FROM t1;
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C1 C2
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create table t2 (id char(2) primary key, cnt int, o char(1), n char(1));
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insert into t2 values
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('u0', 0, ' ', ' '),('u1', 0, ' ', ' '),
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('d0', 0, ' ', ' '),('d1', 0, ' ', ' '),
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('i0', 0, ' ', ' '),('i1', 0, ' ', ' ');
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create trigger t1_cnt_b before update on t1 for each row
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update t2 set cnt=cnt+1, o=old.C1, n=new.C1 where id = 'u0';
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create trigger t1_cnt_db before delete on t1 for each row
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update t2 set cnt=cnt+1, o=old.C1, n=' ' where id = 'd0';
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create trigger t1_cnt_ib before insert on t1 for each row
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update t2 set cnt=cnt+1, n=new.C1, o=' ' where id = 'i0';
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create trigger t1_cnt_a after update on t1 for each row
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update t2 set cnt=cnt+1, o=old.C1, n=new.C1 where id = 'u1';
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create trigger t1_cnt_da after delete on t1 for each row
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update t2 set cnt=cnt+1, o=old.C1, n=' ' where id = 'd1';
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create trigger t1_cnt_ia after insert on t1 for each row
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update t2 set cnt=cnt+1, n=new.C1, o=' ' where id = 'i1';
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 0
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d1 0
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i0 0
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i1 0
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u0 0
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u1 0
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# INSERT triggers test
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insert into t1 values ('a','b');
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 0
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d1 0
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i0 1 a
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i1 1 a
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u0 0
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u1 0
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# UPDATE triggers test
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update t1 set C1= 'd';
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 0
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d1 0
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i0 1 a
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i1 1 a
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u0 1 a d
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u1 1 a d
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# DELETE triggers test
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delete from t1 where C1='d';
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 1 d
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d1 1 d
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i0 1 a
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i1 1 a
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u0 1 a d
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u1 1 a d
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# INSERT triggers which cause also UPDATE test (insert duplicate row)
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insert into t1 values ('0','1');
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 1 d
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d1 1 d
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i0 2 0
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i1 2 0
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u0 1 a d
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u1 1 a d
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insert into t1 values ('0','1');
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 1 d
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d1 1 d
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i0 3 0
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i1 3 0
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u0 2 0 0
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u1 2 0 0
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# INSERT triggers which cause also DELETE test
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# (insert duplicate row in table referenced by foreign key)
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insert into t1 values ('1','1');
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CREATE TABLE t3 (C1 CHAR(1) primary key, FOREIGN KEY (C1) REFERENCES t1(C1) ) engine=innodb;
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insert into t1 values ('1','1');
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 2 1
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d1 2 1
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i0 5 1
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i1 5 1
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u0 2 0 0
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u1 2 0 0
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drop table t3,t1;
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SET @@global.slave_exec_mode= @old_slave_exec_mode;
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SET @@global.slave_run_triggers_for_rbr= @old_slave_run_triggers_for_rbr;
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drop table t2;
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CREATE TABLE t1 (i INT) ENGINE=InnoDB;
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CREATE TABLE t2 (i INT) ENGINE=InnoDB;
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SET @old_slave_run_triggers_for_rbr= @@global.slave_run_triggers_for_rbr;
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SET GLOBAL slave_run_triggers_for_rbr=YES;
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CREATE TRIGGER tr AFTER INSERT ON t1 FOR EACH ROW
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INSERT INTO t2 VALUES (new.i);
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BEGIN;
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INSERT INTO t1 VALUES (1);
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INSERT INTO t1 VALUES (2);
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COMMIT;
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select * from t2;
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i
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1
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2
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SET @@global.slave_run_triggers_for_rbr= @old_slave_run_triggers_for_rbr;
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drop tables t2,t1;
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# Triggers on slave do not work if master has some
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CREATE TABLE t1 (C1 CHAR(1) primary key, C2 CHAR(1)) engine=innodb;
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SELECT * FROM t1;
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C1 C2
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create trigger t1_dummy before delete on t1 for each row
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set @dummy= 1;
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SET @old_slave_exec_mode= @@global.slave_exec_mode;
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SET @old_slave_run_triggers_for_rbr= @@global.slave_run_triggers_for_rbr;
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SET @@global.slave_exec_mode= IDEMPOTENT;
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SET @@global.slave_run_triggers_for_rbr= YES;
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SELECT * FROM t1;
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C1 C2
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create table t2 (id char(2) primary key, cnt int, o char(1), n char(1));
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insert into t2 values
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('u0', 0, ' ', ' '),('u1', 0, ' ', ' '),
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('d0', 0, ' ', ' '),('d1', 0, ' ', ' '),
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('i0', 0, ' ', ' '),('i1', 0, ' ', ' ');
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create trigger t1_cnt_b before update on t1 for each row
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update t2 set cnt=cnt+1, o=old.C1, n=new.C1 where id = 'u0';
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create trigger t1_cnt_ib before insert on t1 for each row
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update t2 set cnt=cnt+1, n=new.C1, o=' ' where id = 'i0';
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create trigger t1_cnt_a after update on t1 for each row
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update t2 set cnt=cnt+1, o=old.C1, n=new.C1 where id = 'u1';
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create trigger t1_cnt_da after delete on t1 for each row
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update t2 set cnt=cnt+1, o=old.C1, n=' ' where id = 'd1';
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create trigger t1_cnt_ia after insert on t1 for each row
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update t2 set cnt=cnt+1, n=new.C1, o=' ' where id = 'i1';
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 0
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d1 0
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i0 0
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i1 0
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u0 0
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u1 0
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# INSERT triggers test
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insert into t1 values ('a','b');
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 0
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d1 0
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i0 0
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i1 0
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u0 0
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u1 0
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# UPDATE triggers test
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update t1 set C1= 'd';
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 0
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d1 0
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i0 0
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i1 0
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u0 0
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u1 0
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# DELETE triggers test
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delete from t1 where C1='d';
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 0
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d1 0
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i0 0
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i1 0
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u0 0
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u1 0
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# INSERT triggers which cause also UPDATE test (insert duplicate row)
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insert into t1 values ('0','1');
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 0
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d1 0
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i0 1 0
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i1 1 0
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u0 0
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u1 0
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insert into t1 values ('0','1');
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 0
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d1 0
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i0 1 0
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i1 1 0
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u0 0
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u1 0
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# INSERT triggers which cause also DELETE test
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# (insert duplicate row in table referenced by foreign key)
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insert into t1 values ('1','1');
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CREATE TABLE t3 (C1 CHAR(1) primary key, FOREIGN KEY (C1) REFERENCES t1(C1) ) engine=innodb;
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insert into t1 values ('1','1');
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SELECT * FROM t2 order by id;
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id cnt o n
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d0 0
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d1 0
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i0 2 1
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i1 2 1
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u0 0
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u1 0
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drop table t3,t1;
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SET @@global.slave_exec_mode= @old_slave_exec_mode;
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SET @@global.slave_run_triggers_for_rbr= @old_slave_run_triggers_for_rbr;
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drop table t2;
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#
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# MDEV-5513: Trigger is applied to the rows after first one
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#
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create table t1 (a int, b int);
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create table tlog (a int);
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set sql_log_bin=0;
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create trigger tr1 after insert on t1 for each row insert into tlog values (1);
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set sql_log_bin=1;
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set @slave_run_triggers_for_rbr.saved = @@slave_run_triggers_for_rbr;
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set global slave_run_triggers_for_rbr=1;
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create trigger tr2 before insert on t1 for each row set new.b = new.a;
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insert into t1 values (1,10),(2,20),(3,30);
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select * from t1;
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a b
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1 10
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2 20
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3 30
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set global slave_run_triggers_for_rbr = @slave_run_triggers_for_rbr.saved;
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drop table t1, tlog;
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include/rpl_end.inc
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