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ed1696f6b9
we store 7 bytes (1 + 2*3) in every Query_log_event. In the future if users want binlog optimized for small size and less safe, we could add --binlog-no-charset (and binlog-no-sql-mode etc): charset info is something by design optional (even if for now we don't offer possibility to disable it): it's not a binlog format change. We try to reduce the number of get_charset() calls in the slave SQL thread to a minimum by caching the charset read from the previous event (which will often be equal to the one of the current event). We don't use SET ONE_SHOT for charset-aware repl (we still do for timezones, will be fixed later). No more errors if one changes the global value of charset vars on master or slave (as we log charset info in all Query_log_event). Not fixing Load_log_event as it will be rewritten soon by Dmitri. Testing how mysqlbinlog behaves in rpl_charset.test. mysqlbinlog needs to know where charset file is (to be able to convert a charset number found in binlog (e.g. in User_var_log_event) to a charset name); mysql-test-run needs to pass the correct value for this option to mysqlbinlog. Many result udpates (adding charset info into every event shifts log_pos in SHOW BINLOG EVENTS). Roughly the same job is to be done for timezones :)
91 lines
3.4 KiB
Text
91 lines
3.4 KiB
Text
stop slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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reset master;
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reset slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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start slave;
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reset master;
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SET @save_select_limit=@@session.sql_select_limit;
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SET @@session.sql_select_limit=10, @@session.pseudo_thread_id=100;
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ERROR HY000: Access denied; you need the SUPER privilege for this operation
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SELECT @@session.sql_select_limit = @save_select_limit;
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@@session.sql_select_limit = @save_select_limit
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1
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SET @@session.sql_select_limit=10, @@session.sql_log_bin=0;
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ERROR HY000: Access denied; you need the SUPER privilege for this operation
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SELECT @@session.sql_select_limit = @save_select_limit;
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@@session.sql_select_limit = @save_select_limit
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1
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SET @@session.pseudo_thread_id=100;
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SET @@session.pseudo_thread_id=connection_id();
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SET @@session.sql_log_bin=0;
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SET @@session.sql_log_bin=1;
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drop table if exists t1,t2;
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create table t1(f int);
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create table t2(f int);
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insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
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create temporary table t3(f int);
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insert into t3 select * from t1 where f<6;
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create temporary table t3(f int);
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insert into t2 select count(*) from t3;
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insert into t3 select * from t1 where f>=4;
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drop temporary table t3;
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insert into t2 select count(*) from t3;
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drop temporary table t3;
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select * from t2;
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f
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5
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7
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show binlog events;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 4 Format_desc 1 95 Server ver: VERSION, Binlog ver: 4
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master-bin.000001 95 Query 1 185 use `test`; drop table if exists t1,t2
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master-bin.000001 185 Query 1 271 use `test`; create table t1(f int)
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master-bin.000001 271 Query 1 357 use `test`; create table t2(f int)
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master-bin.000001 357 Query 1 483 use `test`; insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10)
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master-bin.000001 483 Query 1 579 use `test`; create temporary table t3(f int)
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master-bin.000001 579 Query 1 684 use `test`; insert into t3 select * from t1 where f<6
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master-bin.000001 684 Query 1 780 use `test`; create temporary table t3(f int)
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master-bin.000001 780 Query 1 882 use `test`; insert into t2 select count(*) from t3
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master-bin.000001 882 Query 1 988 use `test`; insert into t3 select * from t1 where f>=4
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master-bin.000001 988 Query 1 1075 use `test`; drop temporary table t3
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master-bin.000001 1075 Query 1 1177 use `test`; insert into t2 select count(*) from t3
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master-bin.000001 1177 Query 1 1264 use `test`; drop temporary table t3
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drop table t1, t2;
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use test;
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SET TIMESTAMP=1040323920;
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create table t1(f int);
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SET TIMESTAMP=1040323931;
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create table t2(f int);
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SET TIMESTAMP=1040323938;
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insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
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SET TIMESTAMP=1040323945;
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SET @@session.pseudo_thread_id=1;
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create temporary table t3(f int);
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SET TIMESTAMP=1040323952;
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SET @@session.pseudo_thread_id=1;
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insert into t3 select * from t1 where f<6;
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SET TIMESTAMP=1040324145;
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SET @@session.pseudo_thread_id=2;
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create temporary table t3(f int);
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SET TIMESTAMP=1040324186;
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SET @@session.pseudo_thread_id=1;
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insert into t2 select count(*) from t3;
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SET TIMESTAMP=1040324200;
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SET @@session.pseudo_thread_id=2;
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insert into t3 select * from t1 where f>=4;
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SET TIMESTAMP=1040324211;
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SET @@session.pseudo_thread_id=1;
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drop temporary table t3;
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SET TIMESTAMP=1040324219;
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SET @@session.pseudo_thread_id=2;
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insert into t2 select count(*) from t3;
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SET TIMESTAMP=1040324224;
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SET @@session.pseudo_thread_id=2;
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drop temporary table t3;
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select * from t2;
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f
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5
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7
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drop table t1,t2;
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create temporary table t3 (f int);
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