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set session transaction isolation level read committed;
create table innodb_bug52663 (what varchar(5), id integer, count integer, primary key
(what, id)) engine=innodb;
insert into innodb_bug52663 values ('total', 0, 0);
begin;
set session transaction isolation level read committed;
begin;
update innodb_bug52663 set count = count + 1 where what = 'total' and id = 0;
select * from innodb_bug52663;
what id count
total 0 1
update innodb_bug52663 set count = count + 1 where what = 'total' and id = 0;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
select * from innodb_bug52663;
what id count
total 0 0
commit;
update innodb_bug52663 set count = count + 1 where what = 'total' and id = 0;
commit;
select * from innodb_bug52663;
what id count
total 0 2
select * from innodb_bug52663;
what id count
total 0 2
drop table innodb_bug52663;
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