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The problem is that there is only one autoinc value associated with the query when binlogging. If more than one autoinc values are used in the query, the autoinc values after the first one can be inserted wrongly on slave. So these autoinc values can become inconsistent on master and slave. The problem is resolved by marking all the statements that invoke a trigger or call a function that updated autoinc fields as unsafe, and will switch to row-format in Mixed mode. Actually, the statement is safe if just one autoinc value is used in sub-statement, but it's impossible to check how many autoinc values are used in sub-statement.)
45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
#
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# This test verifies if inserting data into view that invokes a
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# trigger will make the autoinc values become inconsistent on
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# master and slave.
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#
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connection master;
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CREATE TABLE t1(i1 int not null auto_increment, c1 INT, primary key(i1)) engine=innodb;
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CREATE TABLE t2(i1 int not null auto_increment, c2 INT, primary key(i1)) engine=innodb;
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CREATE TABLE t3(i1 int not null auto_increment, a int, primary key(i1)) engine=innodb;
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eval create trigger tr16 $insert_action on t1 for each row insert into t3(a) values(new.c1);
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eval create trigger tr17 $insert_action on t2 for each row insert into t3(a) values(new.c2);
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begin;
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INSERT INTO t1(c1) VALUES (11), (12);
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INSERT INTO t2(c2) VALUES (13), (14);
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CREATE VIEW v16 AS SELECT c1, c2 FROM t1, t2;
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INSERT INTO v16(c1) VALUES (15),(16);
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INSERT INTO v16(c2) VALUES (17),(18);
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connection master1;
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INSERT INTO v16(c1) VALUES (19),(20);
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INSERT INTO v16(c2) VALUES (21),(22);
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connection master;
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INSERT INTO v16(c1) VALUES (23), (24);
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INSERT INTO v16(c1) VALUES (25), (26);
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commit;
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sync_slave_with_master;
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--echo #Test if the results are consistent on master and slave
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--echo #for 'INSERT DATA INTO VIEW WHICH INVOKES TRIGGERS'
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let $diff_table_1=master:test.t3;
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let $diff_table_2=slave:test.t3;
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source include/diff_tables.inc;
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connection master;
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DROP TABLE t1;
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DROP TABLE t2;
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DROP TABLE t3;
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DROP VIEW v16;
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sync_slave_with_master;
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