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416ab8532e
The problem is that since MyISAM's concurrent_insert is on by default some concurrent SELECT statements might not see changes made by INSERT statements in other connections, even if the INSERT statement has returned. The solution is to disable concurrent_insert so that INSERT statements returns after the data is actually visible to other statements. mysql-test/r/flush_read_lock_kill.result: Restore old value of @@global.concurrent_insert mysql-test/r/kill.result: Restore old value of @@global.concurrent_insert mysql-test/r/sp_notembedded.result: Update test case result mysql-test/t/flush_read_lock_kill.test: Restore old value of @@global.concurrent_insert so it doesn't affect other tests. mysql-test/t/kill.test: Restore old value of @@global.concurrent_insert so it doesn't affect other tests. mysql-test/t/sp_notembedded.test: Disable and restore concurrent_insert value at the end of the test case. The test case for Bug 29936 requires that the inserted rows need to be visible before a SELECT statement is queued in another connection. Remove sleep at the start of the test, it's not necessary to log the result of the processlist command, showing the warnings has the same end result.
141 lines
3.9 KiB
Text
141 lines
3.9 KiB
Text
set @old_concurrent_insert= @@global.concurrent_insert;
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set @@global.concurrent_insert= 0;
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drop table if exists t1, t2, t3;
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create table t1 (kill_id int);
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insert into t1 values(connection_id());
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select ((@id := kill_id) - kill_id) from t1;
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((@id := kill_id) - kill_id)
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0
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kill @id;
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select ((@id := kill_id) - kill_id) from t1;
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((@id := kill_id) - kill_id)
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0
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select @id != connection_id();
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@id != connection_id()
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1
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select 4;
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4
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4
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drop table t1;
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kill (select count(*) from mysql.user);
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ERROR 42000: This version of MySQL doesn't yet support 'Usage of subqueries or stored function calls as part of this statement'
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create table t1 (id int primary key);
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create table t2 (id int unsigned not null);
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insert into t2 select id from t1;
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create table t3 (kill_id int);
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insert into t3 values(connection_id());
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select id from t1 where id in (select distinct a.id from t2 a, t2 b, t2 c, t2 d group by a.id, b.id, c.id, d.id having a.id between 10 and 20);
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select ((@id := kill_id) - kill_id) from t3;
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((@id := kill_id) - kill_id)
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0
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kill @id;
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Got one of the listed errors
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drop table t1, t2, t3;
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select get_lock("a", 10);
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get_lock("a", 10)
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1
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select get_lock("a", 10);
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get_lock("a", 10)
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NULL
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select 1;
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1
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1
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select RELEASE_LOCK("a");
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RELEASE_LOCK("a")
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1
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create table t1(f1 int);
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create function bug27563() returns int(11)
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deterministic
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begin
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declare continue handler for sqlstate '70100' set @a:= 'killed';
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declare continue handler for sqlexception set @a:= 'exception';
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set @a= get_lock("lock27563", 10);
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return 1;
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end|
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select get_lock("lock27563",10);
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get_lock("lock27563",10)
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1
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insert into t1 values (bug27563());
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ERROR 70100: Query execution was interrupted
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select @a;
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@a
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NULL
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select * from t1;
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f1
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insert into t1 values(0);
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update t1 set f1= bug27563();
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ERROR 70100: Query execution was interrupted
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select @a;
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@a
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NULL
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select * from t1;
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f1
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0
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insert into t1 values(1);
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delete from t1 where bug27563() is null;
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ERROR 70100: Query execution was interrupted
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select @a;
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@a
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NULL
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select * from t1;
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f1
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0
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1
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select * from t1 where f1= bug27563();
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ERROR 70100: Query execution was interrupted
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select @a;
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@a
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NULL
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create procedure proc27563()
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begin
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declare continue handler for sqlstate '70100' set @a:= 'killed';
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declare continue handler for sqlexception set @a:= 'exception';
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select get_lock("lock27563",10);
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select "shouldn't be selected";
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end|
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call proc27563();
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get_lock("lock27563",10)
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NULL
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ERROR 70100: Query execution was interrupted
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select @a;
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@a
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NULL
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create table t2 (f2 int);
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create trigger trg27563 before insert on t1 for each row
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begin
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declare continue handler for sqlstate '70100' set @a:= 'killed';
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declare continue handler for sqlexception set @a:= 'exception';
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set @a:= get_lock("lock27563",10);
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insert into t2 values(1);
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end|
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insert into t1 values(2),(3);
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ERROR 70100: Query execution was interrupted
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select @a;
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@a
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NULL
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select * from t1;
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f1
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0
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1
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select * from t2;
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f2
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select release_lock("lock27563");
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release_lock("lock27563")
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1
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drop table t1, t2;
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drop function bug27563;
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drop procedure proc27563;
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PREPARE stmt FROM 'EXPLAIN SELECT * FROM t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19,t20,t21,t22,t23,t24,t25,t26,t27,t28,t29,t30,t31,t32,t33,t34,t35,t36,t37,t38,t39,t40 WHERE a1=a2 AND a2=a3 AND a3=a4 AND a4=a5 AND a5=a6 AND a6=a7 AND a7=a8 AND a8=a9 AND a9=a10 AND a10=a11 AND a11=a12 AND a12=a13 AND a13=a14 AND a14=a15 AND a15=a16 AND a16=a17 AND a17=a18 AND a18=a19 AND a19=a20 AND a20=a21 AND a21=a22 AND a22=a23 AND a23=a24 AND a24=a25 AND a25=a26 AND a26=a27 AND a27=a28 AND a28=a29 AND a29=a30 AND a30=a31 AND a31=a32 AND a32=a33 AND a33=a34 AND a34=a35 AND a35=a36 AND a36=a37 AND a37=a38 AND a38=a39 AND a39=a40 ';
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EXECUTE stmt;
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#
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# Bug#19723: kill of active connection yields different error code
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# depending on platform.
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#
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# Connection: con2.
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KILL CONNECTION_ID();
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# CR_SERVER_LOST, CR_SERVER_GONE_ERROR, depending on the timing
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# of close of the connection socket
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SELECT 1;
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Got one of the listed errors
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set @@global.concurrent_insert= @old_concurrent_insert;
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