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Problem: in mixed and statement mode, a query that refers to a system variable will use the slave's value when replayed on slave. So if the value of a system variable is inserted into a table, the slave will differ from the master. Fix: mark statements that refer to a system variable as "unsafe", meaning they will be replicated by row in mixed mode and produce a warning in statement mode. There are some exceptions: some variables are actually replicated. Those should *not* be marked as unsafe. BUG#34732: mysqlbinlog does not print default values for auto_increment variables Problem: mysqlbinlog does not print default values for some variables, including auto_increment_increment and others. So if a client executing the output of mysqlbinlog has different default values, replication will be wrong. Fix: Always print default values for all variables that are replicated. I need to fix the two bugs at the same time, because the test cases would fail if I only fixed one of them.
43 lines
1.8 KiB
Text
43 lines
1.8 KiB
Text
create table t1 (a varchar(50));
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reset master;
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SET TIMESTAMP=10000;
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SET @`a b`='hello';
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INSERT INTO t1 VALUES(@`a b`);
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set @var1= "';aaa";
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SET @var2=char(ascii('a'));
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insert into t1 values (@var1),(@var2);
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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 # User var # # @`a b`=_latin1 0x68656C6C6F COLLATE latin1_swedish_ci
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master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES(@`a b`)
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master-bin.000001 # User var # # @`var1`=_latin1 0x273B616161 COLLATE latin1_swedish_ci
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master-bin.000001 # User var # # @`var2`=_binary 0x61 COLLATE binary
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master-bin.000001 # Query # # use `test`; insert into t1 values (@var1),(@var2)
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flush logs;
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/*!40019 SET @@session.max_insert_delayed_threads=0*/;
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/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
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DELIMITER /*!*/;
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ROLLBACK/*!*/;
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SET @`a b`:=_latin1 0x68656C6C6F COLLATE `latin1_swedish_ci`/*!*/;
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use test/*!*/;
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SET TIMESTAMP=10000/*!*/;
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SET @@session.pseudo_thread_id=999999999/*!*/;
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SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1/*!*/;
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SET @@session.sql_mode=0/*!*/;
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SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
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/*!\C latin1 *//*!*/;
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SET @@session.character_set_client=8,@@session.collation_connection=8,@@session.collation_server=8/*!*/;
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SET @@session.lc_time_names=0/*!*/;
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SET @@session.collation_database=DEFAULT/*!*/;
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INSERT INTO t1 VALUES(@`a b`)
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/*!*/;
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SET @`var1`:=_latin1 0x273B616161 COLLATE `latin1_swedish_ci`/*!*/;
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SET @`var2`:=_binary 0x61 COLLATE `binary`/*!*/;
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SET TIMESTAMP=10000/*!*/;
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insert into t1 values (@var1),(@var2)
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/*!*/;
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DELIMITER ;
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# End of log file
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ROLLBACK /* added by mysqlbinlog */;
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/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
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drop table t1;
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