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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 't1.i'
commit;
*** Results of the test: the binlog must have only Write_rows events not any Update_rows ***
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
binlog.000001 # Query # # BEGIN
binlog.000001 # Table_map # # table_id: # (test.t1)
binlog.000001 # Write_rows # # table_id: # flags: STMT_END_F
binlog.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 't1.i'
commit;
*** Results of the test: the binlog must have only one Write_rows event not two ***
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
binlog.000001 # Query # # BEGIN
binlog.000001 # Table_map # # table_id: # (test.t1)
binlog.000001 # Write_rows # # table_id: # flags: STMT_END_F
binlog.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'
###############################################
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
binlog.000001 # Query # # use `test`; CREATE TABLE t1 ( c1 int , primary key (c1)) ENGINE=InnoDB
binlog.000001 # Query # # BEGIN
binlog.000001 # Table_map # # table_id: # (test.t1)
binlog.000001 # Write_rows # # table_id: # flags: STMT_END_F
binlog.000001 # Xid # # COMMIT /* XID */
binlog.000001 # Query # # use `test`; DROP TABLE `t1` /* generated by server */
###############################################
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'
###############################################
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
###############################################
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