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SET BINLOG_FORMAT=MIXED; RESET MASTER; CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=INNODB; INSERT INTO t1 VALUES (1,1),(2,2),(3,3),(4,4),(5,5),(6,6); SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ; BEGIN; UPDATE t1 SET b = 2*a WHERE a > 1; COMMIT; SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED; BEGIN; UPDATE t1 SET b = a * a WHERE a > 3; COMMIT; SET BINLOG_FORMAT=STATEMENT; SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; BEGIN; UPDATE t1 SET b = 1*a WHERE a > 1; ERROR HY000: Cannot execute statement: impossible to write to binary log since BINLOG_FORMAT = STATEMENT and at least one table uses a storage engine limited to row-based logging. InnoDB is limited to row-logging when transaction isolation level is READ COMMITTED or READ UNCOMMITTED. COMMIT; SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED; BEGIN; UPDATE t1 SET b = 2*a WHERE a > 2; ERROR HY000: Cannot execute statement: impossible to write to binary log since BINLOG_FORMAT = STATEMENT and at least one table uses a storage engine limited to row-based logging. InnoDB is limited to row-logging when transaction isolation level is READ COMMITTED or READ UNCOMMITTED. COMMIT; SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ; BEGIN; UPDATE t1 SET b = 3*a WHERE a > 3; COMMIT; SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE; BEGIN; UPDATE t1 SET b = 4*a WHERE a > 4; COMMIT; SET BINLOG_FORMAT=MIXED; SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; BEGIN; UPDATE t1 SET b = 1*a WHERE a > 1; COMMIT; SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED; BEGIN; UPDATE t1 SET b = 2*a WHERE a > 2; COMMIT; SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ; BEGIN; UPDATE t1 SET b = 3*a WHERE a > 3; COMMIT; SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE; BEGIN; UPDATE t1 SET b = 4*a WHERE a > 4; COMMIT; SET BINLOG_FORMAT=ROW; SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; BEGIN; UPDATE t1 SET b = 1*a WHERE a > 1; COMMIT; SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED; BEGIN; UPDATE t1 SET b = 2*a WHERE a > 2; COMMIT; SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ; BEGIN; UPDATE t1 SET b = 3*a WHERE a > 3; COMMIT; SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE; BEGIN; UPDATE t1 SET b = 4*a WHERE a > 4; COMMIT; include/show_binlog_events.inc Log_name Pos Event_type Server_id End_log_pos Info master-bin.000001 # Query # # use `test`; CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=INNODB master-bin.000001 # Query # # BEGIN master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (1,1),(2,2),(3,3),(4,4),(5,5),(6,6) master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Query # # use `test`; UPDATE t1 SET b = 2*a WHERE a > 1 master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Table_map # # table_id: # (test.t1) master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Query # # use `test`; UPDATE t1 SET b = 3*a WHERE a > 3 master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Query # # use `test`; UPDATE t1 SET b = 4*a WHERE a > 4 master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Table_map # # table_id: # (test.t1) master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Table_map # # table_id: # (test.t1) master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Query # # use `test`; UPDATE t1 SET b = 3*a WHERE a > 3 master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Query # # use `test`; UPDATE t1 SET b = 4*a WHERE a > 4 master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Table_map # # table_id: # (test.t1) master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Table_map # # table_id: # (test.t1) master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Table_map # # table_id: # (test.t1) master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F master-bin.000001 # Xid # # COMMIT /* XID */ master-bin.000001 # Query # # BEGIN master-bin.000001 # Table_map # # table_id: # (test.t1) master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F master-bin.000001 # Xid # # COMMIT /* XID */ DROP TABLE t1; flush status; show status like "binlog_cache_use"; Variable_name Value Binlog_cache_use 0 show status like "binlog_cache_disk_use"; Variable_name Value Binlog_cache_disk_use 0 create table t1 (a int) engine=innodb; show status like "binlog_cache_use"; Variable_name Value Binlog_cache_use 1 show status like "binlog_cache_disk_use"; Variable_name Value Binlog_cache_disk_use 1 begin; delete from t1; commit; show status like "binlog_cache_use"; Variable_name Value Binlog_cache_use 2 show status like "binlog_cache_disk_use"; Variable_name Value Binlog_cache_disk_use 1 drop table t1; CREATE TABLE `t1` ( `a` int(11) NOT NULL auto_increment, `b` int(11) default NULL, PRIMARY KEY (`a`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 ; CREATE TABLE `t2` ( `a` int(11) NOT NULL auto_increment, `b` int(11) default NULL, PRIMARY KEY (`a`) ) ENGINE=INNODB DEFAULT CHARSET=latin1 ; insert into t1 values (1,1),(2,2); insert into t2 values (1,1),(4,4); reset master; UPDATE t2,t1 SET t2.a=t1.a+2; ERROR 23000: Duplicate entry '3' for key 'PRIMARY' select * from t2 /* must be (3,1), (4,4) */; a b 1 1 4 4 # There must no UPDATE in binlog; include/show_binlog_events.inc delete from t1; delete from t2; insert into t1 values (1,2),(3,4),(4,4); insert into t2 values (1,2),(3,4),(4,4); reset master; UPDATE t2,t1 SET t2.a=t2.b where t2.a=t1.a; ERROR 23000: Duplicate entry '4' for key 'PRIMARY' # There must be no UPDATE query event; include/show_binlog_events.inc drop table t1, t2; End of tests