tokudb/t/locks-no-read-lock-serializable-autocommit.test

source include/have_tokudb.inc;
# Tokutek
# test that read locks are not taken with serializable isolation and
# autocommit on, refs 3532

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

# low lock wait timeout, to speed up the test a bit
set global tokudb_lock_timeout = 100;
set global transaction isolation level serializable;

# main client creates a table and inserts a few rows
create table t (a int primary key) engine = tokudb;
insert t values (1),(2),(3);
# now grab write locks on the entire table
begin;
select * from t for update;

# second client should be able to read the table
connect(conn1, localhost, root);
select * from t;
select * from t where a=1;
select * from t where a=2;
select * from t where a=3;
# but not write to it
--error ER_LOCK_WAIT_TIMEOUT
replace into t values (1);
--error ER_LOCK_WAIT_TIMEOUT
insert ignore t values (3);

# back to the main client, commit the transaction
connection default;
commit;

# further, if the main client has an open transaction
# reading the table, a second client should be able
# to grab write locks, since we're not supposed to
# be grabbing read locks.
connection default;
begin;
select * from t;

connection conn1;
select * from t for update;

# back to the main client, commit the transaction
connection default;
commit;

# cleanup
drop table t;
set global transaction isolation level repeatable read;
set global tokudb_lock_timeout = 4000;