create table t1 (a varchar(50)); reset master; SET TIMESTAMP=10000; SET @`a b`='hello'; INSERT INTO t1 VALUES(@`a b`); set @var1= "';aaa"; SET @var2=char(ascii('a')); insert into t1 values (@var1),(@var2); include/show_binlog_events.inc Log_name Pos Event_type Server_id End_log_pos Info master-bin.000001 # Query # # BEGIN master-bin.000001 # User var # # @`a b`=_latin1 0x68656C6C6F COLLATE latin1_swedish_ci master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES(@`a b`) master-bin.000001 # Query # # COMMIT master-bin.000001 # Query # # BEGIN master-bin.000001 # User var # # @`var1`=_latin1 0x273B616161 COLLATE latin1_swedish_ci master-bin.000001 # User var # # @`var2`=_binary 0x61 COLLATE binary master-bin.000001 # Query # # use `test`; insert into t1 values (@var1),(@var2) master-bin.000001 # Query # # COMMIT flush logs; /*!40019 SET @@session.max_insert_delayed_threads=0*/; /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/; DELIMITER /*!*/; ROLLBACK/*!*/; SET TIMESTAMP=10000/*!*/; SET @@session.pseudo_thread_id=999999999/*!*/; SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/; SET @@session.sql_mode=0/*!*/; SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/; /*!\C latin1 *//*!*/; SET @@session.character_set_client=8,@@session.collation_connection=8,@@session.collation_server=8/*!*/; SET @@session.lc_time_names=0/*!*/; SET @@session.collation_database=DEFAULT/*!*/; BEGIN /*!*/; SET @`a b`:=_latin1 0x68656C6C6F COLLATE `latin1_swedish_ci`/*!*/; use `test`/*!*/; SET TIMESTAMP=10000/*!*/; INSERT INTO t1 VALUES(@`a b`) /*!*/; SET TIMESTAMP=10000/*!*/; COMMIT /*!*/; SET TIMESTAMP=10000/*!*/; BEGIN /*!*/; SET @`var1`:=_latin1 0x273B616161 COLLATE `latin1_swedish_ci`/*!*/; SET @`var2`:=_binary 0x61 COLLATE `binary`/*!*/; SET TIMESTAMP=10000/*!*/; insert into t1 values (@var1),(@var2) /*!*/; SET TIMESTAMP=10000/*!*/; COMMIT /*!*/; DELIMITER ; # End of log file ROLLBACK /* added by mysqlbinlog */; /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/; drop table t1;