2494-read-committed.result 1.24 KB
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# Establish connection conn1 (user = root)
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SET DEFAULT_STORAGE_ENGINE = 'tokudb';
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DROP TABLE IF EXISTS foo;
set session transaction isolation level read committed;
create table foo ( a int, b int, primary key (a));
insert into foo values (1,1),(2,2),(3,1),(4,3);
select * from foo;
a	b
1	1
2	2
3	1
4	3
begin;
update foo set b=10 where b=1;
select * from foo;
a	b
1	10
2	2
3	10
4	3
set session transaction isolation level read committed;
select * from foo;
a	b
1	1
2	2
3	1
4	3
set session transaction isolation level read uncommitted;
select * from foo;
a	b
1	10
2	2
3	10
4	3
rollback;
begin;
insert into foo values (5,1),(6,2),(7,1),(8,3);
select * from foo;
a	b
1	1
2	2
3	1
4	3
5	1
6	2
7	1
8	3
set session transaction isolation level read committed;
select * from foo;
a	b
1	1
2	2
3	1
4	3
set session transaction isolation level read uncommitted;
select * from foo;
a	b
1	1
2	2
3	1
4	3
5	1
6	2
7	1
8	3
commit;
begin;
delete from foo where b=1;
select * from foo;
a	b
2	2
4	3
6	2
8	3
set session transaction isolation level read committed;
select * from foo;
a	b
1	1
2	2
3	1
4	3
5	1
6	2
7	1
8	3
set session transaction isolation level read uncommitted;
select * from foo;
a	b
2	2
4	3
6	2
8	3
commit;
set session transaction isolation level serializable;
DROP TABLE foo;