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031b6b5fbb
When an update query is to be written to the binlog, and it reads unset user variables (example: INSERT INTO t VALUEs(@a) where @a does not exist), we create the variable like if it had been set with SET before, and we loop (i.e. we redo the steps of logging, now that the variable exists). mysql-test/r/rpl_user_variables.result: result update. mysql-test/t/rpl_user_variables.test: test to see if unset user variables are written to the binlog sql/item_func.cc: When an update query is to be written to the binlog, and it reads unset user variables (example: INSERT INTO t VALUEs(@a) where @a does not exist), we create the variable like if it had been set with SET before, and we loop (i.e. we redo the steps of logging, now that the variable exists).
109 lines
2.9 KiB
Text
109 lines
2.9 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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create table t1(n char(30));
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set @i1:=12345678901234, @i2:=-12345678901234, @i3:=0, @i4:=-1;
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set @s1:='This is a test', @r1:=12.5, @r2:=-12.5;
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set @n1:=null;
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set @s2:='', @s3:='abc\'def', @s4:= 'abc\\def', @s5:= 'abc''def';
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insert into t1 values (@i1), (@i2), (@i3), (@i4);
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insert into t1 values (@r1), (@r2);
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insert into t1 values (@s1), (@s2), (@s3), (@s4), (@s5);
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insert into t1 values (@n1);
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insert into t1 values (@n2);
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insert into t1 values (@a:=0), (@a:=@a+1), (@a:=@a+1);
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insert into t1 values (@a+(@b:=@a+1));
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set @q:='abc';
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insert t1 values (@q), (@q:=concat(@q, 'n1')), (@q:=concat(@q, 'n2'));
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set @a:=5;
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insert into t1 values (@a),(@a);
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insert into t1 values (@a),(@a),(@a*5);
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select * from t1;
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n
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12345678901234
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-12345678901234
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0
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-1
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12.5
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-12.5
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This is a test
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abc'def
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abc\def
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abc'def
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NULL
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NULL
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0
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1
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2
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5
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abc
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abcn1
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abcn1n2
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5
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5
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NULL
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NULL
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NULL
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select * from t1;
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n
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12345678901234
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-12345678901234
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0
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-1
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12.5
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-12.5
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This is a test
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abc'def
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abc\def
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abc'def
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NULL
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NULL
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0
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1
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2
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5
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abc
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abcn1
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abcn1n2
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5
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5
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NULL
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NULL
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NULL
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show binlog events from 141;
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Log_name Pos Event_type Server_id Orig_log_pos Info
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slave-bin.000001 141 User var 2 141 @i1=12345678901234
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slave-bin.000001 184 User var 2 184 @i2=-12345678901234
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slave-bin.000001 227 User var 2 227 @i3=0
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slave-bin.000001 270 User var 2 270 @i4=-1
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slave-bin.000001 313 Query 1 313 use `test`; insert into t1 values (@i1), (@i2), (@i3), (@i4)
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slave-bin.000001 396 User var 2 396 @r1=12.5
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slave-bin.000001 439 User var 2 439 @r2=-12.5
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slave-bin.000001 482 Query 1 482 use `test`; insert into t1 values (@r1), (@r2)
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slave-bin.000001 551 User var 2 551 @s1='This is a test'
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slave-bin.000001 600 User var 2 600 @s2=''
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slave-bin.000001 635 User var 2 635 @s3='abc'def'
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slave-bin.000001 677 User var 2 677 @s4='abc\def'
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slave-bin.000001 719 User var 2 719 @s5='abc'def'
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slave-bin.000001 761 Query 1 761 use `test`; insert into t1 values (@s1), (@s2), (@s3), (@s4), (@s5)
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slave-bin.000001 851 User var 2 851 @n1=NULL
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slave-bin.000001 877 Query 1 877 use `test`; insert into t1 values (@n1)
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slave-bin.000001 939 User var 2 939 @n2=NULL
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slave-bin.000001 965 Query 1 965 use `test`; insert into t1 values (@n2)
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slave-bin.000001 1027 Query 1 1027 use `test`; insert into t1 values (@a:=0), (@a:=@a+1), (@a:=@a+1)
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slave-bin.000001 1115 User var 2 1115 @a=2
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slave-bin.000001 1157 Query 1 1157 use `test`; insert into t1 values (@a+(@b:=@a+1))
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slave-bin.000001 1229 User var 2 1229 @q='abc'
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slave-bin.000001 1266 Query 1 1266 use `test`; insert t1 values (@q), (@q:=concat(@q, 'n1')), (@q:=concat(@q, 'n2'))
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slave-bin.000001 1370 User var 2 1370 @a=5
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slave-bin.000001 1412 Query 1 1412 use `test`; insert into t1 values (@a),(@a)
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slave-bin.000001 1478 User var 2 1478 @a=NULL
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slave-bin.000001 1503 Query 1 1503 use `test`; insert into t1 values (@a),(@a),(@a*5)
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drop table t1;
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stop slave;
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