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f169114042
Now one can use user variables as target for data loaded from file (besides table's columns). Also LOAD DATA got new SET-clause in which one can specify values for table columns as expressions. For example the following is possible: LOAD DATA INFILE 'words.dat' INTO TABLE t1 (a, @b) SET c = @b + 1; This patch also implements new way of replicating LOAD DATA. Now we do it similarly to other queries. We store LOAD DATA query in new Execute_load_query event (which is last in the sequence of events representing LOAD DATA). When we are executing this event we simply rewrite part of query which holds name of file (we use name of temporary file) and then execute it as usual query. In the beggining of this sequence we use Begin_load_query event which is almost identical to Append_file event
91 lines
3.3 KiB
Text
91 lines
3.3 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 # Format_desc 1 # Server ver: VERSION, Binlog ver: 4
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master-bin.000001 # Query 1 # use `test`; drop table if exists t1,t2
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master-bin.000001 # Query 1 # use `test`; create table t1(f int)
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master-bin.000001 # Query 1 # use `test`; create table t2(f int)
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master-bin.000001 # Query 1 # use `test`; insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10)
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master-bin.000001 # Query 1 # use `test`; create temporary table t3(f int)
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master-bin.000001 # Query 1 # use `test`; insert into t3 select * from t1 where f<6
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master-bin.000001 # Query 1 # use `test`; create temporary table t3(f int)
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master-bin.000001 # Query 1 # use `test`; insert into t2 select count(*) from t3
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master-bin.000001 # Query 1 # use `test`; insert into t3 select * from t1 where f>=4
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master-bin.000001 # Query 1 # use `test`; drop temporary table t3
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master-bin.000001 # Query 1 # use `test`; insert into t2 select count(*) from t3
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master-bin.000001 # Query 1 # 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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