innodb-semi-consistent.test

-- source include/not_embedded.inc
-- source include/have_innodb.inc

--disable_warnings
drop table if exists t1;
--enable_warnings

# basic tests of semi-consistent reads

connect (a,localhost,root,,);
connect (b,localhost,root,,);
connection a;
set binlog_format=mixed;
set session transaction isolation level repeatable read;
create table t1(a int not null) engine=innodb DEFAULT CHARSET=latin1;
insert into t1 values (1),(2),(3),(4),(5),(6),(7);
set autocommit=0;
# this should lock the entire table
select * from t1 where a=3 lock in share mode;
connection b;
set binlog_format=mixed;
set session transaction isolation level repeatable read;
set autocommit=0;
-- error ER_LOCK_WAIT_TIMEOUT
update t1 set a=10 where a=5;
commit;
connection a;
commit;
connection b;
# perform a semi-consisent read (and unlock non-matching rows)
set session transaction isolation level read committed;
update t1 set a=10 where a=5;
connection a;
-- error ER_LOCK_WAIT_TIMEOUT
select * from t1 where a=2 for update;
# this should lock the records (1),(2)
select * from t1 where a=2 limit 1 for update;
connection b;
# semi-consistent read will skip non-matching locked rows a=1, a=2
update t1 set a=11 where a=6;
-- error ER_LOCK_WAIT_TIMEOUT
update t1 set a=12 where a=2;
-- error ER_LOCK_WAIT_TIMEOUT
update t1 set a=13 where a=1;
connection a;
commit;
connection b;
update t1 set a=14 where a=1;
commit;
connection a;
select * from t1;
drop table t1;

connection default;
disconnect a;
disconnect b;

# Bug 39320
create table t1 (a int, b int) engine=myisam;
create table t2 (c int, d int, key (c)) engine=innodb;
insert into t1 values (1,1);
insert into t2 values (1,2);
connect (a,localhost,root,,);
connection a;
set session transaction isolation level read committed;
delete from t1 using t1 join t2 on t1.a = t2.c where t2.d in (1);
connection default;
disconnect a;
drop table t1, t2;