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1
by brian
clean slate |
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SET BINLOG_FORMAT=MIXED;
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RESET MASTER;
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CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=INNODB;
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INSERT INTO t1 VALUES (1,1),(2,2),(3,3),(4,4),(5,5),(6,6);
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
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UPDATE t1 SET b = 2*a WHERE a > 1;
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COMMIT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
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UPDATE t1 SET b = a * a WHERE a > 3;
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COMMIT;
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SET BINLOG_FORMAT=STATEMENT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
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UPDATE t1 SET b = 1*a WHERE a > 1;
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ERROR HY000: Binary logging not possible. Message: Transaction level 'READ-UNCOMMITTED' in InnoDB is not safe for binlog mode 'STATEMENT'
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COMMIT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
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UPDATE t1 SET b = 2*a WHERE a > 2;
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ERROR HY000: Binary logging not possible. Message: Transaction level 'READ-COMMITTED' in InnoDB is not safe for binlog mode 'STATEMENT'
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COMMIT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
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UPDATE t1 SET b = 3*a WHERE a > 3;
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COMMIT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE;
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UPDATE t1 SET b = 4*a WHERE a > 4;
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COMMIT;
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SET BINLOG_FORMAT=MIXED;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
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UPDATE t1 SET b = 1*a WHERE a > 1;
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COMMIT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
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UPDATE t1 SET b = 2*a WHERE a > 2;
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COMMIT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
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UPDATE t1 SET b = 3*a WHERE a > 3;
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COMMIT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE;
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UPDATE t1 SET b = 4*a WHERE a > 4;
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COMMIT;
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SET BINLOG_FORMAT=ROW;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
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UPDATE t1 SET b = 1*a WHERE a > 1;
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COMMIT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
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UPDATE t1 SET b = 2*a WHERE a > 2;
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COMMIT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
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UPDATE t1 SET b = 3*a WHERE a > 3;
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COMMIT;
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BEGIN;
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SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE;
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UPDATE t1 SET b = 4*a WHERE a > 4;
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=INNODB
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (1,1),(2,2),(3,3),(4,4),(5,5),(6,6)
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Query # # use `test`; UPDATE t1 SET b = 2*a WHERE a > 1
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Query # # use `test`; UPDATE t1 SET b = 3*a WHERE a > 3
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Query # # use `test`; UPDATE t1 SET b = 4*a WHERE a > 4
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Query # # use `test`; UPDATE t1 SET b = 3*a WHERE a > 3
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Query # # use `test`; UPDATE t1 SET b = 4*a WHERE a > 4
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # use `test`; BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Update_rows # # table_id: #
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master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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DROP TABLE t1;
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show status like "binlog_cache_use";
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Variable_name Value
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Binlog_cache_use 13
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show status like "binlog_cache_disk_use";
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Variable_name Value
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Binlog_cache_disk_use 0
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create table t1 (a int) engine=innodb;
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show status like "binlog_cache_use";
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Variable_name Value
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Binlog_cache_use 14
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show status like "binlog_cache_disk_use";
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Variable_name Value
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Binlog_cache_disk_use 1
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begin;
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delete from t1;
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commit;
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show status like "binlog_cache_use";
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Variable_name Value
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Binlog_cache_use 15
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show status like "binlog_cache_disk_use";
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Variable_name Value
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Binlog_cache_disk_use 1
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drop table t1;
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158 |
CREATE TABLE `t1` (
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`a` int(11) NOT NULL auto_increment,
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`b` int(11) default NULL,
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PRIMARY KEY (`a`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 ;
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CREATE TABLE `t2` (
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`a` int(11) NOT NULL auto_increment,
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`b` int(11) default NULL,
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PRIMARY KEY (`a`)
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) ENGINE=INNODB DEFAULT CHARSET=latin1 ;
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insert into t1 values (1,1),(2,2);
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insert into t2 values (1,1),(4,4);
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reset master;
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UPDATE t2,t1 SET t2.a=t1.a+2;
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ERROR 23000: Duplicate entry '3' for key 'PRIMARY'
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select * from t2 /* must be (3,1), (4,4) */;
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a b
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1 1
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4 4
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there must no UPDATE in binlog
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show master status;
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File Position Binlog_Do_DB Binlog_Ignore_DB
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master-bin.000001 # <Binlog_Do_DB> <Binlog_Ignore_DB>
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delete from t1;
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delete from t2;
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insert into t1 values (1,2),(3,4),(4,4);
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insert into t2 values (1,2),(3,4),(4,4);
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reset master;
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UPDATE t2,t1 SET t2.a=t2.b where t2.a=t1.a;
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ERROR 23000: Duplicate entry '4' for key 'PRIMARY'
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there must no UPDATE in binlog
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show master status;
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190 |
File Position Binlog_Do_DB Binlog_Ignore_DB
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master-bin.000001 # <Binlog_Do_DB> <Binlog_Ignore_DB>
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drop table t1, t2;
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End of tests
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