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The reason of the bug is in that `get_var_with_binlog' performs missed assingment of the variables as side-effect. Doing that it eventually calls `free_underlaid_joins' to pass as an argument `thd->lex->select_lex' of the lex which belongs to the user query, not to one which is emulated i.e SET @var1:=NULL. `get_var_with_binlog' is refined to supply a temporary lex to sql_set_variables's stack. mysql-test/r/rpl_user_variables.result: results changed mysql-test/t/rpl_user_variables.test: a problematic query to be binlogged is added sql/item_func.cc: BUG#19136: Crashing log-bin and uninitialized user variables The reason of the bug is in that how `get_var_with_binlog' performs missed assingment of the variables: `free_underlaid_joins' gets as an argument `thd->lex->select_lex' which belongs to the user query, not to one which is emulated i.e SET @var1:=NULL. `get_var_with_binlog' is refined to supply a temporary lex to sql_set_variables's stack.
63 lines
2 KiB
Text
63 lines
2 KiB
Text
#
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# Test of replicating user variables
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#
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source include/master-slave.inc;
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# Disable PS as the log positions differs
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--disable_ps_protocol
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# Clean up old slave's binlogs.
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# The slave is started with --log-slave-updates
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# and this test does SHOW BINLOG EVENTS on the slave's
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# binlog. But previous tests can influence the current test's
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# binlog (e.g. a temporary table in the previous test has not
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# been explicitly deleted, or it has but the slave hasn't had
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# enough time to catch it before STOP SLAVE,
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# and at the beginning of the current
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# test the slave immediately writes DROP TEMPORARY TABLE this_old_table).
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# We wait for the slave to have written all he wants to the binlog
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# (otherwise RESET MASTER may come too early).
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save_master_pos;
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connection slave;
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sync_with_master;
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reset master;
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connection 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); # not explicitely set before
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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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connection master1; # see if variable is reset in binlog when thread changes
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insert into t1 values (@a),(@a),(@a*5);
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select * from t1;
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save_master_pos;
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connection slave;
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sync_with_master;
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select * from t1;
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show binlog events from 141;
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#
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# BUG19136: Crashing log-bin and uninitialized user variables in a derived table
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# just to check nothing bad happens anymore
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connection master;
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insert into t1 select * FROM (select @var1 union select @var2) AS t2;
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drop table t1;
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save_master_pos;
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connection slave;
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sync_with_master;
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stop slave;
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# End of 4.1 tests
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