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Normally, auto_increment value is generated for the column by inserting either NULL or 0 into it. NO_AUTO_VALUE_ON_ZERO suppresses this behavior for 0 so that only NULL generates the auto_increment value. This behavior is also followed by a slave, specifically by the SQL Thread, when applying events in the statement format from a master. However, when applying events in the row format, the flag was ignored thus causing an assertion failure: "Assertion failed: next_insert_id == 0, file .\handler.cc" In fact, we never need to generate a auto_increment value for the column when applying events in row format on slave. So we don't allow it to happen by using 'MODE_NO_AUTO_VALUE_ON_ZERO'. Refactoring: Get rid of all the sql_mode checks to rows_log_event when applying it for avoiding problems caused by the inconsistency of the sql_mode on slave and master as the sql_mode is not set for Rows_log_event. mysql-test/extra/rpl_tests/rpl_auto_increment.test: Added test to verify if the assertion of "next_insert_id == 0" will fail in ha_external_lock() function. mysql-test/suite/rpl/r/rpl_auto_increment.result: Test result for bug#56662. sql/log_event.cc: Added code to not allow generation of auto_increment value when processing rows event by adding 'MODE_NO_AUTO_VALUE_ON_ZERO' to sql_mode. sql/rpl_record.cc: Added code to get rid of the 'MODE_STRICT_TRANS_TABLES' and MODE_STRICT_ALL_TABLES check to the table when appling the rows event and treat it as no strict.
324 lines
5.8 KiB
Plaintext
324 lines
5.8 KiB
Plaintext
include/master-slave.inc
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[connection master]
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create table t1 (a int not null auto_increment,b int, primary key (a)) engine=myisam auto_increment=3;
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insert into t1 values (NULL,1),(NULL,2),(NULL,3);
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select * from t1;
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a b
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12 1
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22 2
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32 3
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select * from t1;
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a b
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12 1
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22 2
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32 3
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drop table t1;
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create table t1 (a int not null auto_increment,b int, primary key (a)) engine=myisam;
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insert into t1 values (1,1),(NULL,2),(3,3),(NULL,4);
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delete from t1 where b=4;
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insert into t1 values (NULL,5),(NULL,6);
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select * from t1;
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a b
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1 1
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2 2
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3 3
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22 5
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32 6
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select * from t1;
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a b
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1 1
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2 2
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3 3
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22 5
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32 6
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drop table t1;
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set @@session.auto_increment_increment=100, @@session.auto_increment_offset=10;
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show variables like "%auto_inc%";
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Variable_name Value
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auto_increment_increment 100
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auto_increment_offset 10
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create table t1 (a int not null auto_increment, primary key (a)) engine=myisam;
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insert into t1 values (NULL),(5),(NULL);
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insert into t1 values (250),(NULL);
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select * from t1;
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a
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5
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10
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110
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250
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310
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insert into t1 values (1000);
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set @@insert_id=400;
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insert into t1 values(NULL),(NULL);
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select * from t1;
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a
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5
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10
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110
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250
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310
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400
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410
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1000
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select * from t1;
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a
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5
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10
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110
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250
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310
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400
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410
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1000
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drop table t1;
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create table t1 (a int not null auto_increment, primary key (a)) engine=innodb;
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insert into t1 values (NULL),(5),(NULL);
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insert into t1 values (250),(NULL);
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select * from t1;
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a
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5
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10
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110
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250
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310
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insert into t1 values (1000);
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set @@insert_id=400;
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insert into t1 values(NULL),(NULL);
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select * from t1;
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a
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5
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10
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110
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250
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310
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400
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410
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1000
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select * from t1;
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a
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5
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10
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110
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250
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310
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400
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410
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1000
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drop table t1;
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set @@session.auto_increment_increment=1, @@session.auto_increment_offset=1;
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create table t1 (a int not null auto_increment, primary key (a)) engine=myisam;
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insert into t1 values (NULL),(5),(NULL),(NULL);
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insert into t1 values (500),(NULL),(502),(NULL),(NULL);
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select * from t1;
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a
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1
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5
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6
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7
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500
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501
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502
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503
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504
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set @@insert_id=600;
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insert into t1 values(600),(NULL),(NULL);
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ERROR 23000: Duplicate entry '600' for key 'PRIMARY'
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set @@insert_id=600;
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insert ignore into t1 values(600),(NULL),(NULL),(610),(NULL);
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select * from t1;
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a
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1
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5
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6
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7
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500
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501
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502
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503
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504
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600
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610
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611
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select * from t1;
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a
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1
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5
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6
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7
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500
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501
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502
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503
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504
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600
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610
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611
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drop table t1;
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set @@session.auto_increment_increment=10, @@session.auto_increment_offset=1;
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create table t1 (a int not null auto_increment, primary key (a)) engine=myisam;
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insert into t1 values(2),(12),(22),(32),(42);
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insert into t1 values (NULL),(NULL);
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insert into t1 values (3),(NULL),(NULL);
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select * from t1;
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a
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1
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3
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11
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21
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31
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select * from t1;
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a
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1
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2
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3
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11
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12
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21
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22
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31
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32
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42
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drop table t1;
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create table t1 (a tinyint not null auto_increment primary key) engine=myisam;
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insert into t1 values(103);
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set auto_increment_increment=11;
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set auto_increment_offset=4;
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insert into t1 values(null);
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insert into t1 values(null);
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insert into t1 values(null);
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ERROR 23000: Duplicate entry '125' for key 'PRIMARY'
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select a, mod(a-@@auto_increment_offset,@@auto_increment_increment) from t1 order by a;
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a mod(a-@@auto_increment_offset,@@auto_increment_increment)
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103 0
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114 0
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125 0
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create table t2 (a tinyint unsigned not null auto_increment primary key) engine=myisam;
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set auto_increment_increment=10;
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set auto_increment_offset=1;
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set insert_id=1000;
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insert into t2 values(null);
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Warnings:
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Warning 1264 Out of range value for column 'a' at row 1
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select a, mod(a-@@auto_increment_offset,@@auto_increment_increment) from t2 order by a;
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a mod(a-@@auto_increment_offset,@@auto_increment_increment)
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251 0
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create table t3 like t1;
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set auto_increment_increment=1000;
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set auto_increment_offset=700;
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insert into t3 values(null);
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Warnings:
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Warning 1264 Out of range value for column 'a' at row 1
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select * from t3 order by a;
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a
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127
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select * from t1 order by a;
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a
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103
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114
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125
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select * from t2 order by a;
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a
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251
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select * from t3 order by a;
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a
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127
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drop table t1,t2,t3;
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set auto_increment_increment=1;
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set auto_increment_offset=1;
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CREATE TABLE t1 (id MEDIUMINT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=innodb;
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INSERT INTO t1 VALUES (NULL), (NULL), (NULL);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`id` mediumint(9) NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (`id`)
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) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`id` mediumint(9) NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (`id`)
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) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1
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drop table t1;
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include/rpl_reset.inc
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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 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=innodb;
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CREATE TABLE t2 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=myisam;
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SET SQL_MODE='';
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INSERT INTO t1 VALUES(NULL);
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INSERT INTO t2 VALUES(NULL);
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SELECT * FROM t1;
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id
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1
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SELECT * FROM t2;
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id
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1
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INSERT INTO t1 VALUES();
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INSERT INTO t2 VALUES();
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SELECT * FROM t1;
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id
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1
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2
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SELECT * FROM t2;
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id
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1
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2
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INSERT INTO t1 VALUES(0);
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INSERT INTO t2 VALUES(0);
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SELECT * FROM t1;
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id
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1
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2
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3
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SELECT * FROM t2;
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id
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1
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2
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3
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SET SQL_MODE=NO_AUTO_VALUE_ON_ZERO;
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INSERT INTO t1 VALUES(0);
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INSERT INTO t2 VALUES(0);
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SELECT * FROM t1;
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id
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0
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1
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2
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3
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SELECT * FROM t2;
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id
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0
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1
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2
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3
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INSERT INTO t1 VALUES(4);
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INSERT INTO t2 VALUES(4);
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FLUSH LOGS;
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include/diff_tables.inc [master:t1, slave:t1]
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include/diff_tables.inc [master:t2, slave:t2]
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DROP TABLE t1;
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DROP TABLE t2;
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include/diff_tables.inc [master:t1, slave:t1]
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include/diff_tables.inc [master:t2, slave:t2]
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DROP TABLE t1;
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DROP TABLE t2;
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SET SQL_MODE='';
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CREATE TABLE t1 (id SMALLINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, data INT) ENGINE=innodb;
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BEGIN;
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# Set sql_mode with NO_AUTO_VALUE_ON_ZERO for allowing
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# zero to fill the auto_increment field.
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SET SQL_MODE=NO_AUTO_VALUE_ON_ZERO;
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INSERT INTO t1(id,data) VALUES(0,2);
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# Resetting sql_mode without NO_AUTO_VALUE_ON_ZERO to
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# affect the execution of the transaction on slave.
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SET SQL_MODE=0;
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COMMIT;
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SELECT * FROM t1;
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id data
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0 2
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SELECT * FROM t1;
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id data
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0 2
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DROP TABLE t1;
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include/rpl_end.inc
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