CREATE TABLE t1 (i int unique) ENGINE=innodb;
reset master;
begin;
insert into t1 values (1),(2);
*** the following UPDATE query wont generate any updates for the binlog ***
update t1 set i = 3 where i < 3;
ERROR 23000: Duplicate entry '3' for key 'i'
commit;
*** Results of the test: the binlog must have only Write_rows events not any Update_rows ***
show binlog events from <binlog_start>;
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
master-bin.000001	#	Query	#	#	BEGIN
master-bin.000001	#	Table_map	#	#	table_id: # (test.t1)
master-bin.000001	#	Write_rows	#	#	table_id: # flags: STMT_END_F
master-bin.000001	#	Xid	#	#	COMMIT /* XID */
delete from t1;
reset master;
begin;
insert into t1 values (1),(2);
*** the following UPDATE query wont generate any updates for the binlog ***
insert into t1 values (3),(4),(1),(2);
ERROR 23000: Duplicate entry '1' for key 'i'
commit;
*** Results of the test: the binlog must have only one Write_rows event not two ***
show binlog events from <binlog_start>;
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
master-bin.000001	#	Query	#	#	BEGIN
master-bin.000001	#	Table_map	#	#	table_id: # (test.t1)
master-bin.000001	#	Write_rows	#	#	table_id: # flags: STMT_END_F
master-bin.000001	#	Xid	#	#	COMMIT /* XID */
drop table t1;
RESET MASTER;
CREATE TABLE t1 ( c1 int , primary key (c1)) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1), (2), (3);
CREATE TEMPORARY TABLE IF NOT EXISTS  t2 LIKE t1;
TRUNCATE TABLE t2;
DROP TABLE t1;
###############################################
### assertion: No event for 'TRUNCATE TABLE t2'
###############################################
show binlog events from <binlog_start>;
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
master-bin.000001	#	Query	#	#	use `test`; CREATE TABLE t1 ( c1 int , primary key (c1)) ENGINE=InnoDB
master-bin.000001	#	Query	#	#	BEGIN
master-bin.000001	#	Table_map	#	#	table_id: # (test.t1)
master-bin.000001	#	Write_rows	#	#	table_id: # flags: STMT_END_F
master-bin.000001	#	Xid	#	#	COMMIT /* XID */
master-bin.000001	#	Query	#	#	use `test`; DROP TABLE t1
###############################################
RESET MASTER;
CREATE TEMPORARY TABLE t1 (c1 int) Engine=InnoDB;
INSERT INTO t1 VALUES (1), (2), (3);
TRUNCATE t1;
DROP TEMPORARY TABLE t1;
###############################################
### assertion: No event for 'TRUNCATE TABLE t1'
###############################################
show binlog events from <binlog_start>;
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
###############################################