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Bug#59410 read uncommitted: unlock row could not find a 3 mode lock on the record This bug is present only in 5.6 but I am adding the test case to earlier versions to ensure it never appears in earlier versions too.
18 lines
529 B
Plaintext
18 lines
529 B
Plaintext
create table `bug59410_1`(`a` int)engine=innodb;
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insert into `bug59410_1` values (1),(2),(3);
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select 1 from `bug59410_1` where `a` <> any (
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select 1 from `bug59410_1` where `a` <> 1 for update)
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for update;
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1
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1
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1
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drop table bug59410_1;
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create table bug59410_2(`a` char(1),`b` int)engine=innodb;
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insert into bug59410_2 values('0',0);
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set transaction isolation level read uncommitted;
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start transaction;
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set @a=(select b from bug59410_2 where
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(select 1 from bug59410_2 where a group by @a=b)
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group by @a:=b);
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drop table bug59410_2;
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