DROP TABLE IF EXISTS t1;
DROP TABLE IF EXISTS t2;
create table t1 (a int, primary key(a) comment 'lock_into_cf1') engine=xengine;
insert into t1 values (1);
insert into t1 values (2);
create table t2 (a int, primary key(a) comment 'lock_info_cf2') engine=xengine;
insert into t2 values (1);
insert into t2 values (2);
set autocommit=0;
select * from t1 for update;
a
1
2
select * from t2 for update;
a
1
2
use information_schema;
select xengine_ddl.subtable_id, xengine_locks.transaction_id, xengine_locks.key
from xengine_locks
left join xengine_ddl
on xengine_locks.subtable_id=xengine_ddl.subtable_id
order by xengine_ddl.subtable_id;
subtable_id	transaction_id	key
#	_txn_id_	_key_
#	_txn_id_	_key_
#	_txn_id_	_key_
#	_txn_id_	_key_
use test;
DROP TABLE t1;
DROP TABLE t2;