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29fb041007
When replicating MDL events for a table that uses system versioning without primary keys, ensure that for data sets with duplicate records, the updates to these records with duplicates are enacted on the correct row. That is, there was a bug (reported in MDEV-30430) such that the function to find the row to update would stop after finding the first matching record. However, in the absence of primary keys, the version of the record is needed to compare the row to ensure we are updating the correct one. The fix, therefore, updates the record comparison functionality to use system version columns when there are no primary keys on the table. Reviewed By: ============ Andrei Elkin <andrei.elkin@mariadb.com>
192 lines
4.9 KiB
Plaintext
192 lines
4.9 KiB
Plaintext
include/master-slave.inc
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[connection master]
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connection slave;
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connection master;
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CREATE TABLE t1 (x int) with system versioning;
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insert into t1 values (1);
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select * from t1 order by x;
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x
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1
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delete from t1;
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select * from t1 order by x;
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x
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select * from t1 for system_time all order by row_end, x;
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x
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1
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connection slave;
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select * from t1 order by x;
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x
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select * from t1 for system_time all order by row_end, x;
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x
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1
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connection master;
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insert into t1 values (2);
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connection slave;
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select * from t1 order by x;
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x
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2
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connection master;
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update t1 set x = 3;
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connection slave;
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select * from t1 order by x;
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x
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3
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select * from t1 for system_time all order by row_end, x;
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x
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1
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2
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3
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# check unversioned -> versioned replication
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connection master;
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create or replace table t1 (x int primary key);
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connection slave;
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alter table t1 with system versioning;
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connection master;
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insert into t1 values (1);
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connection slave;
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select * from t1 order by x;
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x
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1
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select * from t1 for system_time all order by row_end, x;
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x
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1
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connection master;
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update t1 set x= 2 where x = 1;
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connection slave;
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select * from t1 order by x;
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x
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2
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select * from t1 for system_time all order by row_end, x;
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x
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1
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2
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connection master;
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delete from t1;
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connection slave;
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select * from t1 order by x;
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x
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select * from t1 for system_time all order by row_end, x;
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x
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1
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2
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# same thing (UPDATE, DELETE), but without PK
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connection master;
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create or replace table t1 (x int);
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connection slave;
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alter table t1 with system versioning;
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connection master;
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insert into t1 values (1);
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update t1 set x= 2 where x = 1;
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connection slave;
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select * from t1 order by x;
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x
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2
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select * from t1 for system_time all order by row_end, x;
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x
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1
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2
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connection master;
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delete from t1;
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connection slave;
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select * from t1 order by x;
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x
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select * from t1 for system_time all order by row_end, x;
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x
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1
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2
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# multi-update
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connection master;
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create or replace table t1 (x int) with system versioning;
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create or replace table t2 (x int) with system versioning;
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insert into t1 values (1);
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insert into t2 values (2);
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update t1, t2 set t1.x=11, t2.x=22;
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connection slave;
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select * from t1 order by x;
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x
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11
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select * from t2 order by x;
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x
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22
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select * from t1 for system_time all order by row_end, x;
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x
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1
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11
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select * from t2 for system_time all order by row_end, x;
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x
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2
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22
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# MDEV-14767 system_versioning_alter_history breaks ALTER replication
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## Case 1: KEEP on the master, ALTER will work on the slave
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connection master;
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create or replace table t1 (a int) with system versioning;
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set system_versioning_alter_history= KEEP;
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alter table t1 add column b int;
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connection slave;
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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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`a` int(11) DEFAULT NULL,
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`b` int(11) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci WITH SYSTEM VERSIONING
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## Case 2: ERROR on the master, it'll fail on the master, the slave won't see it
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connection master;
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set system_versioning_alter_history= ERROR;
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alter table t1 drop column b;
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ERROR HY000: Not allowed for system-versioned `test`.`t1`. Change @@system_versioning_alter_history to proceed with ALTER.
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connection slave;
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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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`a` int(11) DEFAULT NULL,
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`b` int(11) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci WITH SYSTEM VERSIONING
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## Case 3: table is not versioned on the master, ALTER will work on the slave
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connection master;
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create or replace table t1 (a int);
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connection slave;
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create or replace table t1 (a int) with system versioning;
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connection master;
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alter table t1 add column b int;
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connection slave;
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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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`a` int(11) DEFAULT NULL,
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`b` int(11) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci WITH SYSTEM VERSIONING
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connection master;
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drop table t1, t2;
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create table t1 (i int) with system versioning partition by system_time limit 8 ( partition p1 history, partition p2 history, partition pn current );
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insert into t1 values (1);
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update t1 set i = 1;
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update t1 set i = 0;
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connection slave;
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connection master;
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drop table t1;
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# check versioned -> versioned replication without any keys on duplicate records
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connection master;
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create table t1 (a INT) with system versioning;
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insert into t1 values (1);
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insert into t1 values (1);
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delete from t1;
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connection slave;
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include/diff_tables.inc [master:test.t1,slave:test.t1]
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connection master;
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drop table t1;
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connection slave;
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# check unversioned -> versioned replication with non-unique keys on duplicate records
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connection master;
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set statement sql_log_bin=0 for create table t1 (a INT NOT NULL, b INT, INDEX(a,b));
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connection slave;
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set statement sql_log_bin=0 for create table t1 (a INT NOT NULL, b INT, INDEX(a,b)) with system versioning;
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connection master;
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insert into t1 values (1,1);
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insert into t1 values (1,1);
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delete from t1;
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connection slave;
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include/diff_tables.inc [master:test.t1,slave:test.t1]
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connection master;
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drop table t1;
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include/rpl_end.inc
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