config root man

-- source include/have_innodb.inc

# Bug #49164 READ-COMMITTED reports "matched: 0" on compound PK
# a duplicate of
# Bug #52663 Lost update incrementing column value under READ COMMITTED

connect (con1,localhost,root,,);
connect (con2,localhost,root,,);

connection con1;
SET tx_isolation = 'READ-COMMITTED';

CREATE TABLE bug49164 (a INT, b BIGINT, c TINYINT, PRIMARY KEY (a, b))
ENGINE=InnoDB;

insert into bug49164 values (1,1,1), (2,2,2), (3,3,3);

begin;
update bug49164 set c=7;
select * from bug49164;
rollback;
select * from bug49164;
begin;
update bug49164 set c=7;

connection con2;

SET tx_isolation = 'READ-COMMITTED'; 
begin;
select * from bug49164;
commit;
begin;
--send
update bug49164 set c=6 where a=1 and b=1;

connection con1;
rollback;
select * from bug49164;
connection con2;
reap;
commit;
connection con1;
select * from bug49164;
connection default;
disconnect con1;
disconnect con2;
drop table bug49164;